X-Git-Url: http://nitlanguage.org

diff --git a/c_src/string_search._sep.c b/c_src/string_search._sep.c
index fe1aebe..8d3bc0b 100644
--- a/c_src/string_search._sep.c
+++ b/c_src/string_search._sep.c
@@ -1,856 +1,1867 @@
 /* This C file is generated by NIT to compile module string_search. */
 #include "string_search._sep.h"
-val_t string_search___Pattern___search_index_in(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 21, LOCATE_string_search___Pattern___search_index_in};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  fprintf(stderr, "Deferred method %s called");
-  fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 21);
-  nit_exit(1);
-  tracehead = trace.prev;
+val_t string_search___Pattern___search_index_in(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 21;
+  fra.me.meth = LOCATE_string_search___Pattern___search_index_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  /* ./../lib/standard//string_search.nit:21 */
+  nit_abort("Deferred method called", NULL, LOCATE_string_search, 21);
+  stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
-val_t string_search___Pattern___search_in(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 26, LOCATE_string_search___Pattern___search_in};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  fprintf(stderr, "Deferred method %s called");
-  fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 26);
-  nit_exit(1);
-  tracehead = trace.prev;
+val_t string_search___Pattern___search_in(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 26;
+  fra.me.meth = LOCATE_string_search___Pattern___search_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  /* ./../lib/standard//string_search.nit:26 */
+  nit_abort("Deferred method called", NULL, LOCATE_string_search, 26);
+  stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
-val_t string_search___Pattern___search_all_in(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 30, LOCATE_string_search___Pattern___search_all_in};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable2 = NEW_Array_array___Array___init(); /*new Array[Match]*/
-  variable1 = variable2;
-  variable3 = ((string_search___Pattern___search_in_t)CALL( self,COLOR_string_search___Pattern___search_in))( self,  variable0 /*s*/,  TAG_Int(0)) /*Pattern::search_in*/;
-  variable2 = variable3;
-  while (true) { /*while*/
-    variable3 = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable2 /*match*/ ==  NIT_NULL /*null*/) || (( variable2 /*match*/ != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL( variable2 /*match*/,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable2 /*match*/, NIT_NULL /*null*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL( variable2 /*match*/,COLOR_kernel___Object_____eqeq))( variable2 /*match*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    ((array___AbstractArray___add_t)CALL( variable1 /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable1 /*res*/,  variable2 /*match*/) /*AbstractArray::add*/;
-    variable3 = ((string_search___Match___after_t)CALL( variable2 /*match*/,COLOR_string_search___Match___after))( variable2 /*match*/) /*Match::after*/;
-    variable3 = ((string_search___Pattern___search_in_t)CALL( self,COLOR_string_search___Pattern___search_in))( self,  variable0 /*s*/, variable3) /*Pattern::search_in*/;
-    variable2 = variable3 /*match=*/;
-    continue_1: while(0);
-  }
-  break_1: while(0);
-  variable1 =  variable1 /*res*/;
-  goto return_label0;
-  return_label0: while(false);
-  tracehead = trace.prev;
-  return variable1;
+val_t string_search___Pattern___search_all_in(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[4];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 30;
+  fra.me.meth = LOCATE_string_search___Pattern___search_all_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 5;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[3] = NIT_NULL;
+  fra.me.REG[4] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//string_search.nit:33 */
+  fra.me.REG[2] = NEW_Array_array___Array___init();
+  /* ./../lib/standard//string_search.nit:34 */
+  REGB0 = TAG_Int(0);
+  fra.me.REG[3] = CALL_string_search___Pattern___search_in(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+  /* ./../lib/standard//string_search.nit:35 */
+  while(1) {
+    REGB0 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+    if (UNTAG_Bool(REGB0)) {
+    } else {
+      REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      if (UNTAG_Bool(REGB1)) {
+        REGB1 = TAG_Bool(false);
+        REGB0 = REGB1;
+      } else {
+        REGB1 = CALL_kernel___Object_____eqeq(fra.me.REG[3])(fra.me.REG[3], NIT_NULL);
+        REGB0 = REGB1;
+      }
+    }
+    REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
+    if (UNTAG_Bool(REGB0)) {
+      /* ./../lib/standard//string_search.nit:36 */
+      CALL_abstract_collection___SimpleCollection___add(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[3]);
+      /* ./../lib/standard//string_search.nit:37 */
+      REGB0 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      if (UNTAG_Bool(REGB0)) {
+        nit_abort("Reciever is null", NULL, LOCATE_string_search, 37);
+      }
+      REGB0 = CALL_string_search___Match___after(fra.me.REG[3])(fra.me.REG[3]);
+      fra.me.REG[4] = CALL_string_search___Pattern___search_in(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+      fra.me.REG[3] = fra.me.REG[4];
+    } else {
+      /* ./../lib/standard//string_search.nit:35 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  /* ./../lib/standard//string_search.nit:39 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[2];
 }
-val_t string_search___Pattern___split_in(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 42, LOCATE_string_search___Pattern___split_in};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-    val_t variable5;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable2 = NEW_Array_array___Array___init(); /*new Array[Match]*/
-  variable1 = variable2;
-  variable2 =  TAG_Int(0);
-  variable4 = ((string_search___Pattern___search_in_t)CALL( self,COLOR_string_search___Pattern___search_in))( self,  variable0 /*s*/,  TAG_Int(0)) /*Pattern::search_in*/;
-  variable3 = variable4;
-  while (true) { /*while*/
-    variable4 = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable3 /*match*/ ==  NIT_NULL /*null*/) || (( variable3 /*match*/ != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL( variable3 /*match*/,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable3 /*match*/, NIT_NULL /*null*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL( variable3 /*match*/,COLOR_kernel___Object_____eqeq))( variable3 /*match*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (!UNTAG_Bool(variable4)) break; /* while*/
-    variable5 = ((string_search___Match___from_t)CALL( variable3 /*match*/,COLOR_string_search___Match___from))( variable3 /*match*/) /*Match::from*/;
-    variable5 = TAG_Int(UNTAG_Int(variable5)-UNTAG_Int( variable2 /*i*/));
-    variable4 = variable5;
-    variable5 = NEW_Match_string_search___Match___init( variable0 /*s*/,  variable2 /*i*/,  variable4 /*len*/); /*new Match*/
-    ((array___AbstractArray___add_t)CALL( variable1 /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable1 /*res*/, variable5) /*AbstractArray::add*/;
-    variable5 = ((string_search___Match___after_t)CALL( variable3 /*match*/,COLOR_string_search___Match___after))( variable3 /*match*/) /*Match::after*/;
-    variable2 = variable5 /*i=*/;
-    variable5 = ((string_search___Pattern___search_in_t)CALL( self,COLOR_string_search___Pattern___search_in))( self,  variable0 /*s*/,  variable2 /*i*/) /*Pattern::search_in*/;
-    variable3 = variable5 /*match=*/;
-    continue_3: while(0);
-  }
-  break_3: while(0);
-  variable4 = ((array___AbstractArray___length_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Collection___length))( variable0 /*s*/) /*AbstractArray::length*/;
-  variable4 = TAG_Int(UNTAG_Int(variable4)-UNTAG_Int( variable2 /*i*/));
-  variable5 = NEW_Match_string_search___Match___init( variable0 /*s*/,  variable2 /*i*/, variable4); /*new Match*/
-  variable4 = variable5;
-  ((array___AbstractArray___add_t)CALL( variable1 /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable1 /*res*/, variable4) /*AbstractArray::add*/;
-  variable1 =  variable1 /*res*/;
-  goto return_label2;
-  return_label2: while(false);
-  tracehead = trace.prev;
-  return variable1;
+val_t string_search___Pattern___split_in(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[4];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 42;
+  fra.me.meth = LOCATE_string_search___Pattern___split_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 5;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[3] = NIT_NULL;
+  fra.me.REG[4] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//string_search.nit:45 */
+  fra.me.REG[2] = NEW_Array_array___Array___init();
+  /* ./../lib/standard//string_search.nit:46 */
+  REGB0 = TAG_Int(0);
+  /* ./../lib/standard//string_search.nit:47 */
+  REGB1 = TAG_Int(0);
+  fra.me.REG[3] = CALL_string_search___Pattern___search_in(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB1);
+  /* ./../lib/standard//string_search.nit:48 */
+  while(1) {
+    REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      REGB2 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = TAG_Bool(false);
+        REGB1 = REGB2;
+      } else {
+        REGB2 = CALL_kernel___Object_____eqeq(fra.me.REG[3])(fra.me.REG[3], NIT_NULL);
+        REGB1 = REGB2;
+      }
+    }
+    REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
+    if (UNTAG_Bool(REGB1)) {
+      /* ./../lib/standard//string_search.nit:50 */
+      REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      if (UNTAG_Bool(REGB1)) {
+        nit_abort("Reciever is null", NULL, LOCATE_string_search, 50);
+      }
+      REGB1 = CALL_string_search___Match___from(fra.me.REG[3])(fra.me.REG[3]);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB1 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
+      /* ./../lib/standard//string_search.nit:51 */
+      fra.me.REG[4] = NEW_Match_string_search___Match___init(fra.me.REG[1], REGB0, REGB1);
+      CALL_abstract_collection___SimpleCollection___add(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[4]);
+      /* ./../lib/standard//string_search.nit:52 */
+      REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      if (UNTAG_Bool(REGB1)) {
+        nit_abort("Reciever is null", NULL, LOCATE_string_search, 52);
+      }
+      REGB1 = CALL_string_search___Match___after(fra.me.REG[3])(fra.me.REG[3]);
+      REGB0 = REGB1;
+      /* ./../lib/standard//string_search.nit:53 */
+      fra.me.REG[4] = CALL_string_search___Pattern___search_in(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+      fra.me.REG[3] = fra.me.REG[4];
+    } else {
+      /* ./../lib/standard//string_search.nit:48 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  /* ./../lib/standard//collection//array.nit:23 */
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  /* ./../lib/standard//kernel.nit:217 */
+  REGB1 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
+  /* ./../lib/standard//string_search.nit:56 */
+  fra.me.REG[1] = NEW_Match_string_search___Match___init(fra.me.REG[1], REGB0, REGB1);
+  CALL_abstract_collection___SimpleCollection___add(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+  /* ./../lib/standard//string_search.nit:57 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[2];
 }
-void string_search___Pattern___init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 0, LOCATE_string_search___Pattern___init};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  tracehead = trace.prev;
+void string_search___Pattern___init(val_t p0, int* init_table){
+  int itpos0 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_Pattern].i;
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  if (init_table[itpos0]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 0;
+  fra.me.meth = LOCATE_string_search___Pattern___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  stack_frame_head = fra.me.prev;
+  init_table[itpos0] = 1;
   return;
 }
-val_t string_search___BM_Pattern___to_s(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 67, LOCATE_string_search___BM_Pattern___to_s};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 = ATTR_string_search___BM_Pattern____motif( self) /*BM_Pattern::_motif*/;
-  goto return_label4;
-  return_label4: while(false);
-  tracehead = trace.prev;
-  return variable0;
+val_t string_search___BM_Pattern___to_s(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 67;
+  fra.me.meth = LOCATE_string_search___BM_Pattern___to_s;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:67 */
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_motif", LOCATE_string_search, 67);
+  }
+  fra.me.REG[0] = ATTR_string_search___BM_Pattern____motif(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
 }
-val_t string_search___BM_Pattern___search_index_in(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 69, LOCATE_string_search___BM_Pattern___search_index_in};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-    val_t variable5;
-    val_t variable6;
-      val_t variable7;
-        val_t variable8;
-      val_t variable9;
-      val_t variable10;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*from*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable2)) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_string_search___BM_Pattern___search_index_in, LOCATE_string_search, 72); nit_exit(1);}
-  variable3 = ((array___AbstractArray___length_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Collection___length))( variable0 /*s*/) /*AbstractArray::length*/;
-  variable2 = variable3;
-  variable4 = ATTR_string_search___BM_Pattern____length( self) /*BM_Pattern::_length*/;
-  variable3 = variable4;
-  variable4 =  variable1 /*from*/;
-  while (true) { /*while*/
-    variable5 = TAG_Int(UNTAG_Int( variable2 /*n*/)-UNTAG_Int( variable3 /*m*/));
-    variable5 = TAG_Int(UNTAG_Int(variable5)+UNTAG_Int( TAG_Int(1)));
-    variable5 = TAG_Bool(UNTAG_Int( variable4 /*j*/)<UNTAG_Int(variable5));
-    if (!UNTAG_Bool(variable5)) break; /* while*/
-    variable6 = TAG_Int(UNTAG_Int( variable3 /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable5 = variable6;
-    while (true) { /*while*/
-      variable6 = TAG_Bool(UNTAG_Int( variable5 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-      variable7 = variable6;
-      if (UNTAG_Bool(variable7)) { /* and */
-        variable7 = ATTR_string_search___BM_Pattern____motif( self) /*BM_Pattern::_motif*/;
-        variable7 = ((string___String_____bra_t)CALL(variable7,COLOR_abstract_collection___Map_____bra))(variable7,  variable5 /*i*/) /*String::[]*/;
-        variable8 = TAG_Int(UNTAG_Int( variable5 /*i*/)+UNTAG_Int( variable4 /*j*/));
-        variable8 = ((string___String_____bra_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Map_____bra))( variable0 /*s*/, variable8) /*String::[]*/;
-        variable7 = TAG_Bool((variable7)==(variable8));
-      }
-      variable6 = variable7;
-      if (!UNTAG_Bool(variable6)) break; /* while*/
-      variable5 = TAG_Int(UNTAG_Int(variable5)-UNTAG_Int( TAG_Int(1))) /*i*/;
-      continue_7: while(0);
-    }
-    break_7: while(0);
-    variable6 = TAG_Bool(UNTAG_Int( variable5 /*i*/)<UNTAG_Int( TAG_Int(0)));
-    if (UNTAG_Bool(variable6)) { /*if*/
-      variable2 =  variable4 /*j*/;
-      goto return_label5;
-    } else { /*if*/
-      variable7 = ATTR_string_search___BM_Pattern____gs( self) /*BM_Pattern::_gs*/;
-      variable8 =  variable5 /*i*/;
-      variable9 = TAG_Bool(UNTAG_Int( variable8 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-      variable10 = variable9;
-      if (UNTAG_Bool(variable10)) { /* and */
-        variable10 = variable7;
-        variable10 = ATTR_array___AbstractArray____length(variable10) /*AbstractArray::_length*/;
-        variable10 = TAG_Bool(UNTAG_Int( variable8 /*index*/)<UNTAG_Int(variable10));
+val_t string_search___BM_Pattern___search_index_in(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t REGB5;
+  val_t REGB6;
+  val_t REGB7;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 69;
+  fra.me.meth = LOCATE_string_search___BM_Pattern___search_index_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  /* ./../lib/standard//string_search.nit:72 */
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//kernel.nit:213 */
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:72 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Assert failed", NULL, LOCATE_string_search, 72);
+  }
+  /* ./../lib/standard//collection//array.nit:23 */
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  /* ./../lib/standard//string_search.nit:74 */
+  REGB2 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 74);
+  }
+  REGB2 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:77 */
+  while(1) {
+    /* ./../lib/standard//kernel.nit:217 */
+    REGB3 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
+    /* ./../lib/standard//string_search.nit:77 */
+    REGB4 = TAG_Int(1);
+    /* ./../lib/standard//kernel.nit:215 */
+    REGB4 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB4));
+    /* ./../lib/standard//kernel.nit:212 */
+    REGB4 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB4));
+    /* ./../lib/standard//string_search.nit:77 */
+    if (UNTAG_Bool(REGB4)) {
+      /* ./../lib/standard//string_search.nit:78 */
+      REGB4 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB4 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB4));
+      /* ./../lib/standard//string_search.nit:79 */
+      while(1) {
+        REGB3 = TAG_Int(0);
+        /* ./../lib/standard//kernel.nit:213 */
+        REGB3 = TAG_Bool(UNTAG_Int(REGB4)>=UNTAG_Int(REGB3));
+        /* ./../lib/standard//string_search.nit:79 */
+        if (UNTAG_Bool(REGB3)) {
+          REGB3 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+          if (UNTAG_Bool(REGB3)) {
+          } else {
+            nit_abort("Uninitialized attribute %s", "_motif", LOCATE_string_search, 79);
+          }
+          fra.me.REG[2] = ATTR_string_search___BM_Pattern____motif(fra.me.REG[0]);
+          REGB3 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[2])(fra.me.REG[2], REGB4);
+          /* ./../lib/standard//kernel.nit:215 */
+          REGB5 = TAG_Int(UNTAG_Int(REGB4)+UNTAG_Int(REGB0));
+          /* ./../lib/standard//string_search.nit:79 */
+          REGB5 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB5);
+          REGB6 = TAG_Bool(IS_EQUAL_OO(REGB3,REGB5));
+          if (UNTAG_Bool(REGB6)) {
+          } else {
+            /* ./../lib/standard//kernel.nit:347 */
+            REGB5 = TAG_Bool((REGB3)==(REGB5));
+            /* ./../lib/standard//string_search.nit:79 */
+            REGB6 = REGB5;
+          }
+        } else {
+          REGB5 = TAG_Bool(false);
+          REGB6 = REGB5;
+        }
+        if (UNTAG_Bool(REGB6)) {
+          REGB6 = TAG_Int(1);
+          /* ./../lib/standard//kernel.nit:217 */
+          REGB6 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB6));
+          /* ./../lib/standard//string_search.nit:79 */
+          REGB4 = REGB6;
+        } else {
+          goto label1;
+        }
       }
-      variable9 = variable10;
-      if (!UNTAG_Bool(variable9)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-      variable9 = variable7;
-      variable9 = ATTR_array___Array____items(variable9) /*Array::_items*/;
-      variable9 = UNBOX_NativeArray(variable9)[UNTAG_Int( variable8 /*index*/)];
-      goto return_label8;
-      return_label8: while(false);
-      variable7 = variable9;
-      variable6 = variable7;
-      variable8 = TAG_Int(UNTAG_Int( variable5 /*i*/)+UNTAG_Int( variable4 /*j*/));
-      variable8 = ((string___String_____bra_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Map_____bra))( variable0 /*s*/, variable8) /*String::[]*/;
-      variable8 = ((string_search___BM_Pattern___bc_t)CALL( self,COLOR_string_search___BM_Pattern___bc))( self, variable8) /*BM_Pattern::bc*/;
-      variable8 = TAG_Int(UNTAG_Int(variable8)-UNTAG_Int( variable3 /*m*/));
-      variable8 = TAG_Int(UNTAG_Int(variable8)+UNTAG_Int( TAG_Int(1)));
-      variable8 = TAG_Int(UNTAG_Int(variable8)+UNTAG_Int( variable5 /*i*/));
-      variable7 = variable8;
-      variable8 = TAG_Bool(UNTAG_Int( variable6 /*gs*/)>UNTAG_Int( variable7 /*bc*/));
-      if (UNTAG_Bool(variable8)) { /*if*/
-        variable4 = TAG_Int(UNTAG_Int(variable4)+UNTAG_Int( variable6 /*gs*/)) /*j*/;
-      } else { /*if*/
-        variable4 = TAG_Int(UNTAG_Int(variable4)+UNTAG_Int( variable7 /*bc*/)) /*j*/;
+      label1: while(0);
+      /* ./../lib/standard//string_search.nit:80 */
+      REGB6 = TAG_Int(0);
+      /* ./../lib/standard//kernel.nit:212 */
+      REGB6 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB6));
+      /* ./../lib/standard//string_search.nit:80 */
+      if (UNTAG_Bool(REGB6)) {
+        /* ./../lib/standard//string_search.nit:81 */
+        REGB6 = REGB0;
+        goto label2;
+      } else {
+        /* ./../lib/standard//string_search.nit:83 */
+        REGB5 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          nit_abort("Uninitialized attribute %s", "_gs", LOCATE_string_search, 83);
+        }
+        fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+        /* ./../lib/standard//collection//array.nit:243 */
+        REGB5 = REGB4;
+        /* ./../lib/standard//collection//array.nit:245 */
+        REGB3 = TAG_Int(0);
+        /* ./../lib/standard//kernel.nit:213 */
+        REGB3 = TAG_Bool(UNTAG_Int(REGB5)>=UNTAG_Int(REGB3));
+        /* ./../lib/standard//collection//array.nit:245 */
+        if (UNTAG_Bool(REGB3)) {
+          REGB3 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+          if (UNTAG_Bool(REGB3)) {
+          } else {
+            nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 245);
+          }
+          REGB3 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+          /* ./../lib/standard//kernel.nit:212 */
+          REGB3 = TAG_Bool(UNTAG_Int(REGB5)<UNTAG_Int(REGB3));
+        } else {
+          /* ./../lib/standard//collection//array.nit:245 */
+          REGB7 = TAG_Bool(false);
+          REGB3 = REGB7;
+        }
+        if (UNTAG_Bool(REGB3)) {
+        } else {
+          nit_abort("Assert %s  failed", "'index'", LOCATE_array, 245);
+        }
+        /* ./../lib/standard//collection//array.nit:246 */
+        fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+        REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB3)) {
+          nit_abort("Reciever is null", NULL, LOCATE_array, 246);
+        }
+        /* ./../lib/standard//collection//array.nit:654 */
+        fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB5)];
+        /* ./../lib/standard//collection//array.nit:246 */
+        goto label3;
+        label3: while(0);
+        /* ./../lib/standard//string_search.nit:83 */
+        REGB5 = fra.me.REG[2];
+        /* ./../lib/standard//kernel.nit:215 */
+        REGB3 = TAG_Int(UNTAG_Int(REGB4)+UNTAG_Int(REGB0));
+        /* ./../lib/standard//string_search.nit:84 */
+        REGB3 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB3);
+        REGB3 = CALL_string_search___BM_Pattern___bc(fra.me.REG[0])(fra.me.REG[0], REGB3);
+        /* ./../lib/standard//kernel.nit:217 */
+        REGB3 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB2));
+        /* ./../lib/standard//string_search.nit:84 */
+        REGB7 = TAG_Int(1);
+        /* ./../lib/standard//kernel.nit:215 */
+        REGB7 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB7));
+        REGB4 = TAG_Int(UNTAG_Int(REGB7)+UNTAG_Int(REGB4));
+        /* ./../lib/standard//kernel.nit:214 */
+        REGB7 = TAG_Bool(UNTAG_Int(REGB5)>UNTAG_Int(REGB4));
+        /* ./../lib/standard//string_search.nit:86 */
+        if (UNTAG_Bool(REGB7)) {
+          /* ./../lib/standard//kernel.nit:215 */
+          REGB5 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB5));
+          /* ./../lib/standard//string_search.nit:87 */
+          REGB0 = REGB5;
+        } else {
+          /* ./../lib/standard//kernel.nit:215 */
+          REGB4 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB4));
+          /* ./../lib/standard//string_search.nit:89 */
+          REGB0 = REGB4;
+        }
       }
+    } else {
+      /* ./../lib/standard//string_search.nit:77 */
+      goto label4;
     }
-    continue_6: while(0);
-  }
-  break_6: while(0);
-  variable5 = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable2 = variable5;
-  goto return_label5;
-  return_label5: while(false);
-  tracehead = trace.prev;
-  return variable2;
+  }
+  label4: while(0);
+  /* ./../lib/standard//string_search.nit:93 */
+  REGB0 = TAG_Int(1);
+  /* ./../lib/standard//kernel.nit:216 */
+  REGB0 = TAG_Int(-UNTAG_Int(REGB0));
+  /* ./../lib/standard//string_search.nit:93 */
+  REGB6 = REGB0;
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB6;
 }
-val_t string_search___BM_Pattern___search_in(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 96, LOCATE_string_search___BM_Pattern___search_in};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-    val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable3 = ((string_search___BM_Pattern___search_index_in_t)CALL( self,COLOR_string_search___Pattern___search_index_in))( self,  variable0 /*s*/,  variable1 /*from*/) /*BM_Pattern::search_index_in*/;
-  variable2 = variable3;
-  variable3 = TAG_Bool(UNTAG_Int( variable2 /*to*/)<UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable3)) { /*if*/
-    variable2 =  NIT_NULL /*null*/;
-    goto return_label9;
-  } else { /*if*/
-    variable3 = ATTR_string_search___BM_Pattern____length( self) /*BM_Pattern::_length*/;
-    variable4 = NEW_Match_string_search___Match___init( variable0 /*s*/,  variable2 /*to*/, variable3); /*new Match*/
-    variable3 = variable4;
-    variable2 = variable3;
-    goto return_label9;
-  }
-  return_label9: while(false);
-  tracehead = trace.prev;
-  return variable2;
+val_t string_search___BM_Pattern___search_in(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 96;
+  fra.me.meth = LOCATE_string_search___BM_Pattern___search_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  /* ./../lib/standard//string_search.nit:99 */
+  REGB0 = CALL_string_search___Pattern___search_index_in(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+  /* ./../lib/standard//string_search.nit:100 */
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//kernel.nit:212 */
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:100 */
+  if (UNTAG_Bool(REGB1)) {
+    /* ./../lib/standard//string_search.nit:101 */
+    fra.me.REG[2] = NIT_NULL;
+    goto label1;
+  } else {
+    /* ./../lib/standard//string_search.nit:103 */
+    REGB1 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 103);
+    }
+    REGB1 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+    fra.me.REG[1] = NEW_Match_string_search___Match___init(fra.me.REG[1], REGB0, REGB1);
+    fra.me.REG[2] = fra.me.REG[1];
+    goto label1;
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[2];
 }
-void string_search___BM_Pattern___init(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 107, LOCATE_string_search___BM_Pattern___init};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_BM_Pattern].i]) return;
-  ATTR_string_search___BM_Pattern____motif( self) /*BM_Pattern::_motif*/ =  variable0 /*motif*/;
-  variable1 = ((array___AbstractArray___length_t)CALL( variable0 /*motif*/,COLOR_abstract_collection___Collection___length))( variable0 /*motif*/) /*AbstractArray::length*/;
-  ATTR_string_search___BM_Pattern____length( self) /*BM_Pattern::_length*/ = variable1;
-  variable1 = ATTR_string_search___BM_Pattern____length( self) /*BM_Pattern::_length*/;
-  variable2 = NEW_Array_array___Array___with_capacity(variable1); /*new Array[Int]*/
-  variable1 = variable2;
-  ATTR_string_search___BM_Pattern____gs( self) /*BM_Pattern::_gs*/ = variable1;
-  variable1 = NEW_ArrayMap_array___ArrayMap___init(); /*new ArrayMap[Char, Int]*/
-  ATTR_string_search___BM_Pattern____bc_table( self) /*BM_Pattern::_bc_table*/ = variable1;
-  ((string_search___BM_Pattern___compute_gs_t)CALL( self,COLOR_string_search___BM_Pattern___compute_gs))( self) /*BM_Pattern::compute_gs*/;
-  ((string_search___BM_Pattern___compute_bc_t)CALL( self,COLOR_string_search___BM_Pattern___compute_bc))( self) /*BM_Pattern::compute_bc*/;
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_BM_Pattern].i] = 1;
-  tracehead = trace.prev;
+void string_search___BM_Pattern___init(val_t p0, val_t p1, int* init_table){
+  int itpos1 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_BM_Pattern].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t tmp;
+  if (init_table[itpos1]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 107;
+  fra.me.meth = LOCATE_string_search___BM_Pattern___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//string_search.nit:107 */
+  fra.me.REG[2] = fra.me.REG[0];
+  CALL_string_search___Pattern___init(fra.me.REG[0])(fra.me.REG[0], init_table);
+  /* ./../lib/standard//string_search.nit:110 */
+  ATTR_string_search___BM_Pattern____motif(fra.me.REG[2]) = fra.me.REG[1];
+  /* ./../lib/standard//collection//array.nit:23 */
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  /* ./../lib/standard//string_search.nit:111 */
+  ATTR_string_search___BM_Pattern____length(fra.me.REG[2]) = REGB0;
+  /* ./../lib/standard//string_search.nit:112 */
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[2])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 112);
+  }
+  REGB0 = ATTR_string_search___BM_Pattern____length(fra.me.REG[2]);
+  fra.me.REG[1] = NEW_Array_array___Array___with_capacity(REGB0);
+  ATTR_string_search___BM_Pattern____gs(fra.me.REG[2]) = fra.me.REG[1];
+  /* ./../lib/standard//string_search.nit:113 */
+  fra.me.REG[1] = NEW_ArrayMap_array___ArrayMap___init();
+  ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[2]) = fra.me.REG[1];
+  /* ./../lib/standard//string_search.nit:114 */
+  CALL_string_search___BM_Pattern___compute_gs(fra.me.REG[2])(fra.me.REG[2]);
+  /* ./../lib/standard//string_search.nit:115 */
+  CALL_string_search___BM_Pattern___compute_bc(fra.me.REG[2])(fra.me.REG[2]);
+  stack_frame_head = fra.me.prev;
+  init_table[itpos1] = 1;
   return;
 }
-val_t string_search___BM_Pattern___bc(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 124, LOCATE_string_search___BM_Pattern___bc};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 = ATTR_string_search___BM_Pattern____bc_table( self) /*BM_Pattern::_bc_table*/;
-  variable1 = ((abstract_collection___Map___has_key_t)CALL(variable1,COLOR_abstract_collection___Map___has_key))(variable1,  variable0 /*e*/) /*Map::has_key*/;
-  if (UNTAG_Bool(variable1)) { /*if*/
-    variable1 = ATTR_string_search___BM_Pattern____bc_table( self) /*BM_Pattern::_bc_table*/;
-    variable1 = ((abstract_collection___Map_____bra_t)CALL(variable1,COLOR_abstract_collection___Map_____bra))(variable1,  variable0 /*e*/) /*Map::[]*/;
-    goto return_label11;
-  } else { /*if*/
-    variable1 = ATTR_string_search___BM_Pattern____length( self) /*BM_Pattern::_length*/;
-    goto return_label11;
-  }
-  return_label11: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-void string_search___BM_Pattern___compute_bc(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 139, LOCATE_string_search___BM_Pattern___compute_bc};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-    val_t variable4;
-    val_t variable5;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable1 = ATTR_string_search___BM_Pattern____motif( self) /*BM_Pattern::_motif*/;
-  variable0 = variable1;
-  variable2 = ATTR_string_search___BM_Pattern____length( self) /*BM_Pattern::_length*/;
-  variable1 = variable2;
-  variable2 =  TAG_Int(0);
-  while (true) { /*while*/
-    variable3 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable3 = TAG_Bool(UNTAG_Int( variable2 /*i*/)<UNTAG_Int(variable3));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable3 = ATTR_string_search___BM_Pattern____bc_table( self) /*BM_Pattern::_bc_table*/;
-    variable4 = ((string___String_____bra_t)CALL( variable0 /*x*/,COLOR_abstract_collection___Map_____bra))( variable0 /*x*/,  variable2 /*i*/) /*String::[]*/;
-    variable5 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( variable2 /*i*/));
-    variable5 = TAG_Int(UNTAG_Int(variable5)-UNTAG_Int( TAG_Int(1)));
-    ((abstract_collection___Map_____braeq_t)CALL(variable3,COLOR_abstract_collection___Map_____braeq))(variable3, variable4, variable5) /*Map::[]=*/;
-    variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_13: while(0);
-  }
-  break_13: while(0);
-  tracehead = trace.prev;
-  return;
+val_t string_search___BM_Pattern___bc(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 124;
+  fra.me.meth = LOCATE_string_search___BM_Pattern___bc;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  /* ./../lib/standard//string_search.nit:126 */
+  REGB1 = TAG_Bool(ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_bc_table", LOCATE_string_search, 126);
+  }
+  fra.me.REG[1] = ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0]);
+  REGB1 = CALL_abstract_collection___MapRead___has_key(fra.me.REG[1])(fra.me.REG[1], REGB0);
+  if (UNTAG_Bool(REGB1)) {
+    /* ./../lib/standard//string_search.nit:127 */
+    REGB1 = TAG_Bool(ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      nit_abort("Uninitialized attribute %s", "_bc_table", LOCATE_string_search, 127);
+    }
+    fra.me.REG[1] = ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0]);
+    fra.me.REG[1] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB0);
+    REGB0 = fra.me.REG[1];
+    goto label1;
+  } else {
+    /* ./../lib/standard//string_search.nit:129 */
+    REGB1 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 129);
+    }
+    REGB1 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+    REGB0 = REGB1;
+    goto label1;
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
 }
-val_t string_search___BM_Pattern___suffixes(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 150, LOCATE_string_search___BM_Pattern___suffixes};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-  val_t variable5;
-  val_t variable6;
-    val_t variable7;
-      val_t variable8;
-      val_t variable9;
-      val_t variable10;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable1 = ATTR_string_search___BM_Pattern____motif( self) /*BM_Pattern::_motif*/;
-  variable0 = variable1;
-  variable2 = ATTR_string_search___BM_Pattern____length( self) /*BM_Pattern::_length*/;
-  variable1 = variable2;
-  variable3 = NEW_Array_array___Array___filled_with( variable1 /*m*/,  variable1 /*m*/); /*new Array[Int]*/
-  variable2 = variable3;
-  variable3 =  TAG_Int(0);
-  variable5 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(1)));
-  variable4 = variable5;
-  variable6 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(2)));
-  variable5 = variable6;
-  while (true) { /*while*/
-    variable6 = TAG_Bool(UNTAG_Int( variable5 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable6)) break; /* while*/
-    variable6 = TAG_Bool(UNTAG_Int( variable5 /*i*/)>UNTAG_Int( variable4 /*g*/));
-    variable7 = variable6;
-    if (UNTAG_Bool(variable7)) { /* and */
-      variable7 = TAG_Int(UNTAG_Int( variable5 /*i*/)+UNTAG_Int( variable1 /*m*/));
-      variable7 = TAG_Int(UNTAG_Int(variable7)-UNTAG_Int( TAG_Int(1)));
-      variable7 = TAG_Int(UNTAG_Int(variable7)-UNTAG_Int( variable3 /*f*/));
-      variable8 = variable7;
-      variable9 = TAG_Bool(UNTAG_Int( variable8 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-      variable10 = variable9;
-      if (UNTAG_Bool(variable10)) { /* and */
-        variable10 = ATTR_array___AbstractArray____length( variable2 /*suff*/) /*AbstractArray::_length*/;
-        variable10 = TAG_Bool(UNTAG_Int( variable8 /*index*/)<UNTAG_Int(variable10));
+void string_search___BM_Pattern___compute_bc(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 139;
+  fra.me.meth = LOCATE_string_search___BM_Pattern___compute_bc;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:141 */
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_motif", LOCATE_string_search, 141);
+  }
+  fra.me.REG[1] = ATTR_string_search___BM_Pattern____motif(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:142 */
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 142);
+  }
+  REGB0 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:143 */
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//string_search.nit:144 */
+  while(1) {
+    REGB2 = TAG_Int(1);
+    /* ./../lib/standard//kernel.nit:217 */
+    REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+    /* ./../lib/standard//kernel.nit:212 */
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//string_search.nit:144 */
+    if (UNTAG_Bool(REGB2)) {
+      /* ./../lib/standard//string_search.nit:145 */
+      REGB2 = TAG_Bool(ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0])!=NIT_NULL);
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        nit_abort("Uninitialized attribute %s", "_bc_table", LOCATE_string_search, 145);
       }
-      variable9 = variable10;
-      if (!UNTAG_Bool(variable9)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-      variable9 = ATTR_array___Array____items( variable2 /*suff*/) /*Array::_items*/;
-      variable9 = UNBOX_NativeArray(variable9)[UNTAG_Int( variable8 /*index*/)];
-      goto return_label16;
-      return_label16: while(false);
-      variable7 = variable9;
-      variable8 = TAG_Int(UNTAG_Int( variable5 /*i*/)-UNTAG_Int( variable4 /*g*/));
-      variable7 = TAG_Bool(UNTAG_Int(variable7)<UNTAG_Int(variable8));
+      fra.me.REG[2] = ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0]);
+      REGB2 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB1);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
+      /* ./../lib/standard//string_search.nit:145 */
+      REGB4 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB4 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB4));
+      /* ./../lib/standard//string_search.nit:145 */
+      CALL_abstract_collection___Map_____braeq(fra.me.REG[2])(fra.me.REG[2], REGB2, REGB4);
+      /* ./../lib/standard//string_search.nit:146 */
+      REGB4 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:215 */
+      REGB4 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB4));
+      /* ./../lib/standard//string_search.nit:146 */
+      REGB1 = REGB4;
+    } else {
+      /* ./../lib/standard//string_search.nit:144 */
+      goto label1;
     }
-    variable6 = variable7;
-    if (UNTAG_Bool(variable6)) { /*if*/
-      variable6 = TAG_Int(UNTAG_Int( variable5 /*i*/)+UNTAG_Int( variable1 /*m*/));
-      variable6 = TAG_Int(UNTAG_Int(variable6)-UNTAG_Int( TAG_Int(1)));
-      variable6 = TAG_Int(UNTAG_Int(variable6)-UNTAG_Int( variable3 /*f*/));
-      variable7 = variable6;
-      variable8 = TAG_Bool(UNTAG_Int( variable7 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-      variable9 = variable8;
-      if (UNTAG_Bool(variable9)) { /* and */
-        variable9 = ATTR_array___AbstractArray____length( variable2 /*suff*/) /*AbstractArray::_length*/;
-        variable9 = TAG_Bool(UNTAG_Int( variable7 /*index*/)<UNTAG_Int(variable9));
-      }
-      variable8 = variable9;
-      if (!UNTAG_Bool(variable8)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-      variable8 = ATTR_array___Array____items( variable2 /*suff*/) /*Array::_items*/;
-      variable8 = UNBOX_NativeArray(variable8)[UNTAG_Int( variable7 /*index*/)];
-      goto return_label17;
-      return_label17: while(false);
-      variable6 = variable8;
-      ((array___Array_____braeq_t)CALL( variable2 /*suff*/,COLOR_abstract_collection___Map_____braeq))( variable2 /*suff*/,  variable5 /*i*/, variable6) /*Array::[]=*/;
-    } else { /*if*/
-      variable6 = TAG_Bool(UNTAG_Int( variable5 /*i*/)<UNTAG_Int( variable4 /*g*/));
-      if (UNTAG_Bool(variable6)) { /*if*/
-        variable4 =  variable5 /*i*/ /*g=*/;
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return;
+}
+val_t string_search___BM_Pattern___suffixes(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t REGB5;
+  val_t REGB6;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 150;
+  fra.me.meth = LOCATE_string_search___BM_Pattern___suffixes;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:152 */
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_motif", LOCATE_string_search, 152);
+  }
+  fra.me.REG[1] = ATTR_string_search___BM_Pattern____motif(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:153 */
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 153);
+  }
+  REGB0 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:154 */
+  fra.me.REG[0] = NEW_Array_array___Array___filled_with(REGB0, REGB0);
+  /* ./../lib/standard//string_search.nit:156 */
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//string_search.nit:157 */
+  REGB2 = TAG_Int(1);
+  /* ./../lib/standard//kernel.nit:217 */
+  REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+  /* ./../lib/standard//string_search.nit:158 */
+  REGB3 = TAG_Int(2);
+  /* ./../lib/standard//kernel.nit:217 */
+  REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB3));
+  /* ./../lib/standard//string_search.nit:159 */
+  while(1) {
+    REGB4 = TAG_Int(0);
+    /* ./../lib/standard//kernel.nit:213 */
+    REGB4 = TAG_Bool(UNTAG_Int(REGB3)>=UNTAG_Int(REGB4));
+    /* ./../lib/standard//string_search.nit:159 */
+    if (UNTAG_Bool(REGB4)) {
+      /* ./../lib/standard//kernel.nit:214 */
+      REGB4 = TAG_Bool(UNTAG_Int(REGB3)>UNTAG_Int(REGB2));
+      /* ./../lib/standard//string_search.nit:160 */
+      if (UNTAG_Bool(REGB4)) {
+        /* ./../lib/standard//kernel.nit:215 */
+        REGB4 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB0));
+        /* ./../lib/standard//string_search.nit:160 */
+        REGB5 = TAG_Int(1);
+        /* ./../lib/standard//kernel.nit:217 */
+        REGB5 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB5));
+        REGB5 = TAG_Int(UNTAG_Int(REGB5)-UNTAG_Int(REGB1));
+        /* ./../lib/standard//collection//array.nit:243 */
+        fra.me.REG[2] = fra.me.REG[0];
+        /* ./../lib/standard//collection//array.nit:245 */
+        REGB4 = TAG_Int(0);
+        /* ./../lib/standard//kernel.nit:213 */
+        REGB4 = TAG_Bool(UNTAG_Int(REGB5)>=UNTAG_Int(REGB4));
+        /* ./../lib/standard//collection//array.nit:245 */
+        if (UNTAG_Bool(REGB4)) {
+          REGB4 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+          if (UNTAG_Bool(REGB4)) {
+          } else {
+            nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 245);
+          }
+          REGB4 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+          /* ./../lib/standard//kernel.nit:212 */
+          REGB4 = TAG_Bool(UNTAG_Int(REGB5)<UNTAG_Int(REGB4));
+        } else {
+          /* ./../lib/standard//collection//array.nit:245 */
+          REGB6 = TAG_Bool(false);
+          REGB4 = REGB6;
+        }
+        if (UNTAG_Bool(REGB4)) {
+        } else {
+          nit_abort("Assert %s  failed", "'index'", LOCATE_array, 245);
+        }
+        /* ./../lib/standard//collection//array.nit:246 */
+        fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+        REGB4 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB4)) {
+          nit_abort("Reciever is null", NULL, LOCATE_array, 246);
+        }
+        /* ./../lib/standard//collection//array.nit:654 */
+        fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB5)];
+        /* ./../lib/standard//collection//array.nit:246 */
+        goto label1;
+        label1: while(0);
+        /* ./../lib/standard//kernel.nit:217 */
+        REGB5 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB2));
+        /* ./../lib/standard//string_search.nit:160 */
+        REGB4 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB4)) {
+          nit_abort("Reciever is null", NULL, LOCATE_string_search, 160);
+        }
+        /* ./../lib/standard//kernel.nit:212 */
+        REGB5 = TAG_Bool(UNTAG_Int(fra.me.REG[2])<UNTAG_Int(REGB5));
+      } else {
+        /* ./../lib/standard//string_search.nit:160 */
+        REGB4 = TAG_Bool(false);
+        REGB5 = REGB4;
       }
-      variable3 =  variable5 /*i*/ /*f=*/;
-      while (true) { /*while*/
-        variable6 = TAG_Bool(UNTAG_Int( variable4 /*g*/)>=UNTAG_Int( TAG_Int(0)));
-        variable7 = variable6;
-        if (UNTAG_Bool(variable7)) { /* and */
-          variable7 = ((string___String_____bra_t)CALL( variable0 /*x*/,COLOR_abstract_collection___Map_____bra))( variable0 /*x*/,  variable4 /*g*/) /*String::[]*/;
-          variable8 = TAG_Int(UNTAG_Int( variable4 /*g*/)+UNTAG_Int( variable1 /*m*/));
-          variable8 = TAG_Int(UNTAG_Int(variable8)-UNTAG_Int( TAG_Int(1)));
-          variable8 = TAG_Int(UNTAG_Int(variable8)-UNTAG_Int( variable3 /*f*/));
-          variable8 = ((string___String_____bra_t)CALL( variable0 /*x*/,COLOR_abstract_collection___Map_____bra))( variable0 /*x*/, variable8) /*String::[]*/;
-          variable7 = TAG_Bool((variable7)==(variable8));
+      if (UNTAG_Bool(REGB5)) {
+        /* ./../lib/standard//kernel.nit:215 */
+        REGB5 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB0));
+        /* ./../lib/standard//string_search.nit:161 */
+        REGB4 = TAG_Int(1);
+        /* ./../lib/standard//kernel.nit:217 */
+        REGB4 = TAG_Int(UNTAG_Int(REGB5)-UNTAG_Int(REGB4));
+        REGB4 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB1));
+        /* ./../lib/standard//collection//array.nit:243 */
+        fra.me.REG[2] = fra.me.REG[0];
+        /* ./../lib/standard//collection//array.nit:245 */
+        REGB5 = TAG_Int(0);
+        /* ./../lib/standard//kernel.nit:213 */
+        REGB5 = TAG_Bool(UNTAG_Int(REGB4)>=UNTAG_Int(REGB5));
+        /* ./../lib/standard//collection//array.nit:245 */
+        if (UNTAG_Bool(REGB5)) {
+          REGB5 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+          if (UNTAG_Bool(REGB5)) {
+          } else {
+            nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 245);
+          }
+          REGB5 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+          /* ./../lib/standard//kernel.nit:212 */
+          REGB5 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB5));
+        } else {
+          /* ./../lib/standard//collection//array.nit:245 */
+          REGB6 = TAG_Bool(false);
+          REGB5 = REGB6;
+        }
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          nit_abort("Assert %s  failed", "'index'", LOCATE_array, 245);
+        }
+        /* ./../lib/standard//collection//array.nit:246 */
+        fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+        REGB5 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB5)) {
+          nit_abort("Reciever is null", NULL, LOCATE_array, 246);
+        }
+        /* ./../lib/standard//collection//array.nit:654 */
+        fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB4)];
+        /* ./../lib/standard//collection//array.nit:246 */
+        goto label2;
+        label2: while(0);
+        /* ./../lib/standard//string_search.nit:161 */
+        CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB3, fra.me.REG[2]);
+      } else {
+        /* ./../lib/standard//kernel.nit:212 */
+        REGB4 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB2));
+        /* ./../lib/standard//string_search.nit:163 */
+        if (UNTAG_Bool(REGB4)) {
+          REGB2 = REGB3;
         }
-        variable6 = variable7;
-        if (!UNTAG_Bool(variable6)) break; /* while*/
-        variable4 = TAG_Int(UNTAG_Int(variable4)-UNTAG_Int( TAG_Int(1))) /*g*/;
-        continue_18: while(0);
+        /* ./../lib/standard//string_search.nit:164 */
+        REGB1 = REGB3;
+        /* ./../lib/standard//string_search.nit:165 */
+        while(1) {
+          REGB4 = TAG_Int(0);
+          /* ./../lib/standard//kernel.nit:213 */
+          REGB4 = TAG_Bool(UNTAG_Int(REGB2)>=UNTAG_Int(REGB4));
+          /* ./../lib/standard//string_search.nit:165 */
+          if (UNTAG_Bool(REGB4)) {
+            REGB4 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB2);
+            /* ./../lib/standard//kernel.nit:215 */
+            REGB5 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB0));
+            /* ./../lib/standard//string_search.nit:165 */
+            REGB6 = TAG_Int(1);
+            /* ./../lib/standard//kernel.nit:217 */
+            REGB6 = TAG_Int(UNTAG_Int(REGB5)-UNTAG_Int(REGB6));
+            REGB6 = TAG_Int(UNTAG_Int(REGB6)-UNTAG_Int(REGB1));
+            /* ./../lib/standard//string_search.nit:165 */
+            REGB6 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB6);
+            REGB5 = TAG_Bool(IS_EQUAL_OO(REGB4,REGB6));
+            if (UNTAG_Bool(REGB5)) {
+            } else {
+              /* ./../lib/standard//kernel.nit:347 */
+              REGB6 = TAG_Bool((REGB4)==(REGB6));
+              /* ./../lib/standard//string_search.nit:165 */
+              REGB5 = REGB6;
+            }
+          } else {
+            REGB6 = TAG_Bool(false);
+            REGB5 = REGB6;
+          }
+          if (UNTAG_Bool(REGB5)) {
+            REGB5 = TAG_Int(1);
+            /* ./../lib/standard//kernel.nit:217 */
+            REGB5 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB5));
+            /* ./../lib/standard//string_search.nit:165 */
+            REGB2 = REGB5;
+          } else {
+            goto label3;
+          }
+        }
+        label3: while(0);
+        /* ./../lib/standard//kernel.nit:217 */
+        REGB5 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
+        /* ./../lib/standard//string_search.nit:166 */
+        CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB3, REGB5);
       }
-      break_18: while(0);
-      variable6 = TAG_Int(UNTAG_Int( variable3 /*f*/)-UNTAG_Int( variable4 /*g*/));
-      ((array___Array_____braeq_t)CALL( variable2 /*suff*/,COLOR_abstract_collection___Map_____braeq))( variable2 /*suff*/,  variable5 /*i*/, variable6) /*Array::[]=*/;
+      /* ./../lib/standard//string_search.nit:168 */
+      REGB5 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB5 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB5));
+      /* ./../lib/standard//string_search.nit:168 */
+      REGB3 = REGB5;
+    } else {
+      /* ./../lib/standard//string_search.nit:159 */
+      goto label4;
     }
-    variable5 = TAG_Int(UNTAG_Int(variable5)-UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_15: while(0);
-  }
-  break_15: while(0);
-  variable0 =  variable2 /*suff*/;
-  goto return_label14;
-  return_label14: while(false);
-  tracehead = trace.prev;
-  return variable0;
+  }
+  label4: while(0);
+  /* ./../lib/standard//string_search.nit:170 */
+  goto label5;
+  label5: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
 }
-void string_search___BM_Pattern___compute_gs(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 173, LOCATE_string_search___BM_Pattern___compute_gs};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-    val_t variable4;
-  val_t variable5;
-    val_t variable6;
-      val_t variable7;
-      val_t variable8;
-    val_t variable9;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable1 = ATTR_string_search___BM_Pattern____motif( self) /*BM_Pattern::_motif*/;
-  variable0 = variable1;
-  variable2 = ATTR_string_search___BM_Pattern____length( self) /*BM_Pattern::_length*/;
-  variable1 = variable2;
-  variable3 = ((string_search___BM_Pattern___suffixes_t)CALL( self,COLOR_string_search___BM_Pattern___suffixes))( self) /*BM_Pattern::suffixes*/;
-  variable2 = variable3;
-  variable3 =  TAG_Int(0);
-  while (true) { /*while*/
-    variable4 = TAG_Bool(UNTAG_Int( variable3 /*i*/)<UNTAG_Int( variable1 /*m*/));
-    if (!UNTAG_Bool(variable4)) break; /* while*/
-    variable4 = ATTR_string_search___BM_Pattern____gs( self) /*BM_Pattern::_gs*/;
-    ((array___Array_____braeq_t)CALL(variable4,COLOR_abstract_collection___Map_____braeq))(variable4,  variable3 /*i*/,  variable1 /*m*/) /*Array::[]=*/;
-    variable3 = TAG_Int(UNTAG_Int(variable3)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_20: while(0);
-  }
-  break_20: while(0);
-  variable4 =  TAG_Int(0);
-  variable5 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(1)));
-  variable3 = variable5 /*i=*/;
-  while (true) { /*while*/
-    variable5 = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-    variable5 = TAG_Bool(UNTAG_Int( variable3 /*i*/)>=UNTAG_Int(variable5));
-    if (!UNTAG_Bool(variable5)) break; /* while*/
-    variable5 = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-    variable5 = TAG_Bool(( variable3 /*i*/)==(variable5));
-    variable6 = variable5;
-    if (!UNTAG_Bool(variable6)) { /* or */
-      variable6 =  variable3 /*i*/;
-      variable7 = TAG_Bool(UNTAG_Int( variable6 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-      variable8 = variable7;
-      if (UNTAG_Bool(variable8)) { /* and */
-        variable8 = ATTR_array___AbstractArray____length( variable2 /*suff*/) /*AbstractArray::_length*/;
-        variable8 = TAG_Bool(UNTAG_Int( variable6 /*index*/)<UNTAG_Int(variable8));
+void string_search___BM_Pattern___compute_gs(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t REGB5;
+  val_t REGB6;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 173;
+  fra.me.meth = LOCATE_string_search___BM_Pattern___compute_gs;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 4;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[3] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:175 */
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_motif", LOCATE_string_search, 175);
+  }
+  fra.me.REG[1] = ATTR_string_search___BM_Pattern____motif(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:176 */
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 176);
+  }
+  REGB0 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:177 */
+  fra.me.REG[1] = CALL_string_search___BM_Pattern___suffixes(fra.me.REG[0])(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:178 */
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//string_search.nit:179 */
+  while(1) {
+    /* ./../lib/standard//kernel.nit:212 */
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB0));
+    /* ./../lib/standard//string_search.nit:179 */
+    if (UNTAG_Bool(REGB2)) {
+      /* ./../lib/standard//string_search.nit:180 */
+      REGB2 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        nit_abort("Uninitialized attribute %s", "_gs", LOCATE_string_search, 180);
       }
-      variable7 = variable8;
-      if (!UNTAG_Bool(variable7)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-      variable7 = ATTR_array___Array____items( variable2 /*suff*/) /*Array::_items*/;
-      variable7 = UNBOX_NativeArray(variable7)[UNTAG_Int( variable6 /*index*/)];
-      goto return_label22;
-      return_label22: while(false);
-      variable6 = variable7;
-      variable7 = TAG_Int(UNTAG_Int( variable3 /*i*/)+UNTAG_Int( TAG_Int(1)));
-      variable6 = TAG_Bool((variable6)==(variable7));
+      fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+      CALL_abstract_collection___Map_____braeq(fra.me.REG[2])(fra.me.REG[2], REGB1, REGB0);
+      /* ./../lib/standard//string_search.nit:181 */
+      REGB2 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:215 */
+      REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
+      /* ./../lib/standard//string_search.nit:181 */
+      REGB1 = REGB2;
+    } else {
+      /* ./../lib/standard//string_search.nit:179 */
+      goto label1;
     }
-    variable5 = variable6;
-    if (UNTAG_Bool(variable5)) { /*if*/
-      while (true) { /*while*/
-        variable5 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(1)));
-        variable5 = TAG_Int(UNTAG_Int(variable5)-UNTAG_Int( variable3 /*i*/));
-        variable5 = TAG_Bool(UNTAG_Int( variable4 /*j*/)<UNTAG_Int(variable5));
-        if (!UNTAG_Bool(variable5)) break; /* while*/
-        variable5 = ATTR_string_search___BM_Pattern____gs( self) /*BM_Pattern::_gs*/;
-        variable6 =  variable4 /*j*/;
-        variable7 = TAG_Bool(UNTAG_Int( variable6 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-        variable8 = variable7;
-        if (UNTAG_Bool(variable8)) { /* and */
-          variable8 = variable5;
-          variable8 = ATTR_array___AbstractArray____length(variable8) /*AbstractArray::_length*/;
-          variable8 = TAG_Bool(UNTAG_Int( variable6 /*index*/)<UNTAG_Int(variable8));
+  }
+  label1: while(0);
+  /* ./../lib/standard//string_search.nit:183 */
+  REGB2 = TAG_Int(0);
+  /* ./../lib/standard//string_search.nit:184 */
+  REGB3 = TAG_Int(1);
+  /* ./../lib/standard//kernel.nit:217 */
+  REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB3));
+  /* ./../lib/standard//string_search.nit:184 */
+  REGB1 = REGB3;
+  /* ./../lib/standard//string_search.nit:185 */
+  while(1) {
+    REGB3 = TAG_Int(1);
+    /* ./../lib/standard//kernel.nit:216 */
+    REGB3 = TAG_Int(-UNTAG_Int(REGB3));
+    /* ./../lib/standard//kernel.nit:213 */
+    REGB3 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB3));
+    /* ./../lib/standard//string_search.nit:185 */
+    if (UNTAG_Bool(REGB3)) {
+      /* ./../lib/standard//string_search.nit:186 */
+      REGB3 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:216 */
+      REGB3 = TAG_Int(-UNTAG_Int(REGB3));
+      /* ./../lib/standard//string_search.nit:186 */
+      REGB4 = TAG_Bool(IS_EQUAL_OO(REGB1,REGB3));
+      if (UNTAG_Bool(REGB4)) {
+      } else {
+        /* ./../lib/standard//kernel.nit:207 */
+        REGB3 = TAG_Bool((REGB1)==(REGB3));
+        /* ./../lib/standard//string_search.nit:186 */
+        REGB4 = REGB3;
+      }
+      if (UNTAG_Bool(REGB4)) {
+        REGB4 = TAG_Bool(true);
+      } else {
+        /* ./../lib/standard//collection//array.nit:243 */
+        fra.me.REG[2] = fra.me.REG[1];
+        REGB3 = REGB1;
+        /* ./../lib/standard//collection//array.nit:245 */
+        REGB5 = TAG_Int(0);
+        /* ./../lib/standard//kernel.nit:213 */
+        REGB5 = TAG_Bool(UNTAG_Int(REGB3)>=UNTAG_Int(REGB5));
+        /* ./../lib/standard//collection//array.nit:245 */
+        if (UNTAG_Bool(REGB5)) {
+          REGB5 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+          if (UNTAG_Bool(REGB5)) {
+          } else {
+            nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 245);
+          }
+          REGB5 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+          /* ./../lib/standard//kernel.nit:212 */
+          REGB5 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB5));
+        } else {
+          /* ./../lib/standard//collection//array.nit:245 */
+          REGB6 = TAG_Bool(false);
+          REGB5 = REGB6;
+        }
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          nit_abort("Assert %s  failed", "'index'", LOCATE_array, 245);
         }
-        variable7 = variable8;
-        if (!UNTAG_Bool(variable7)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-        variable7 = variable5;
-        variable7 = ATTR_array___Array____items(variable7) /*Array::_items*/;
-        variable7 = UNBOX_NativeArray(variable7)[UNTAG_Int( variable6 /*index*/)];
-        goto return_label24;
-        return_label24: while(false);
-        variable5 = variable7;
-        variable5 = TAG_Bool((variable5)==( variable1 /*m*/));
-        if (UNTAG_Bool(variable5)) { /*if*/
-          variable5 = ATTR_string_search___BM_Pattern____gs( self) /*BM_Pattern::_gs*/;
-          variable6 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(1)));
-          variable6 = TAG_Int(UNTAG_Int(variable6)-UNTAG_Int( variable3 /*i*/));
-          ((array___Array_____braeq_t)CALL(variable5,COLOR_abstract_collection___Map_____braeq))(variable5,  variable4 /*j*/, variable6) /*Array::[]=*/;
+        /* ./../lib/standard//collection//array.nit:246 */
+        fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+        REGB5 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB5)) {
+          nit_abort("Reciever is null", NULL, LOCATE_array, 246);
         }
-        variable4 = TAG_Int(UNTAG_Int(variable4)+UNTAG_Int( TAG_Int(1))) /*j*/;
-        continue_23: while(0);
+        /* ./../lib/standard//collection//array.nit:654 */
+        fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB3)];
+        /* ./../lib/standard//collection//array.nit:246 */
+        goto label2;
+        label2: while(0);
+        /* ./../lib/standard//string_search.nit:186 */
+        REGB3 = TAG_Int(1);
+        /* ./../lib/standard//kernel.nit:215 */
+        REGB3 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
+        /* ./../lib/standard//string_search.nit:186 */
+        REGB5 = TAG_Bool(IS_EQUAL_ON(REGB3,fra.me.REG[2]));
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          REGB6 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+          if (UNTAG_Bool(REGB6)) {
+            REGB6 = TAG_Bool(false);
+            REGB5 = REGB6;
+          } else {
+            /* ./../lib/standard//kernel.nit:207 */
+            REGB3 = TAG_Bool((fra.me.REG[2])==(REGB3));
+            /* ./../lib/standard//string_search.nit:186 */
+            REGB5 = REGB3;
+          }
+        }
+        REGB4 = REGB5;
+      }
+      if (UNTAG_Bool(REGB4)) {
+        /* ./../lib/standard//string_search.nit:187 */
+        while(1) {
+          REGB4 = TAG_Int(1);
+          /* ./../lib/standard//kernel.nit:217 */
+          REGB4 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB4));
+          REGB4 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB1));
+          /* ./../lib/standard//kernel.nit:212 */
+          REGB4 = TAG_Bool(UNTAG_Int(REGB2)<UNTAG_Int(REGB4));
+          /* ./../lib/standard//string_search.nit:187 */
+          if (UNTAG_Bool(REGB4)) {
+            /* ./../lib/standard//string_search.nit:188 */
+            REGB4 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+            if (UNTAG_Bool(REGB4)) {
+            } else {
+              nit_abort("Uninitialized attribute %s", "_gs", LOCATE_string_search, 188);
+            }
+            fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+            /* ./../lib/standard//collection//array.nit:243 */
+            REGB4 = REGB2;
+            /* ./../lib/standard//collection//array.nit:245 */
+            REGB5 = TAG_Int(0);
+            /* ./../lib/standard//kernel.nit:213 */
+            REGB5 = TAG_Bool(UNTAG_Int(REGB4)>=UNTAG_Int(REGB5));
+            /* ./../lib/standard//collection//array.nit:245 */
+            if (UNTAG_Bool(REGB5)) {
+              REGB5 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+              if (UNTAG_Bool(REGB5)) {
+              } else {
+		nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 245);
+              }
+              REGB5 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+              /* ./../lib/standard//kernel.nit:212 */
+              REGB5 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB5));
+            } else {
+              /* ./../lib/standard//collection//array.nit:245 */
+              REGB3 = TAG_Bool(false);
+              REGB5 = REGB3;
+            }
+            if (UNTAG_Bool(REGB5)) {
+            } else {
+              nit_abort("Assert %s  failed", "'index'", LOCATE_array, 245);
+            }
+            /* ./../lib/standard//collection//array.nit:246 */
+            fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+            REGB5 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+            if (UNTAG_Bool(REGB5)) {
+              nit_abort("Reciever is null", NULL, LOCATE_array, 246);
+            }
+            /* ./../lib/standard//collection//array.nit:654 */
+            fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB4)];
+            /* ./../lib/standard//collection//array.nit:246 */
+            goto label3;
+            label3: while(0);
+            /* ./../lib/standard//string_search.nit:188 */
+            REGB4 = TAG_Bool(IS_EQUAL_ON(REGB0,fra.me.REG[2]));
+            if (UNTAG_Bool(REGB4)) {
+            } else {
+              REGB5 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+              if (UNTAG_Bool(REGB5)) {
+		REGB5 = TAG_Bool(false);
+		REGB4 = REGB5;
+              } else {
+		/* ./../lib/standard//kernel.nit:207 */
+		REGB5 = TAG_Bool((fra.me.REG[2])==(REGB0));
+		/* ./../lib/standard//string_search.nit:188 */
+		REGB4 = REGB5;
+              }
+            }
+            if (UNTAG_Bool(REGB4)) {
+              REGB4 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+              if (UNTAG_Bool(REGB4)) {
+              } else {
+		nit_abort("Uninitialized attribute %s", "_gs", LOCATE_string_search, 188);
+              }
+              fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+              REGB4 = TAG_Int(1);
+              /* ./../lib/standard//kernel.nit:217 */
+              REGB4 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB4));
+              REGB4 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB1));
+              /* ./../lib/standard//string_search.nit:188 */
+              CALL_abstract_collection___Map_____braeq(fra.me.REG[2])(fra.me.REG[2], REGB2, REGB4);
+            }
+            /* ./../lib/standard//string_search.nit:189 */
+            REGB4 = TAG_Int(1);
+            /* ./../lib/standard//kernel.nit:215 */
+            REGB4 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB4));
+            /* ./../lib/standard//string_search.nit:189 */
+            REGB2 = REGB4;
+          } else {
+            /* ./../lib/standard//string_search.nit:187 */
+            goto label4;
+          }
+        }
+        label4: while(0);
       }
-      break_23: while(0);
+      /* ./../lib/standard//string_search.nit:192 */
+      REGB4 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB4 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB4));
+      /* ./../lib/standard//string_search.nit:192 */
+      REGB1 = REGB4;
+    } else {
+      /* ./../lib/standard//string_search.nit:185 */
+      goto label5;
     }
-    variable3 = TAG_Int(UNTAG_Int(variable3)-UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_21: while(0);
-  }
-  break_21: while(0);
-  variable3 =  TAG_Int(0) /*i=*/;
-  while (true) { /*while*/
-    variable5 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable5 = TAG_Bool(UNTAG_Int( variable3 /*i*/)<UNTAG_Int(variable5));
-    if (!UNTAG_Bool(variable5)) break; /* while*/
-    variable5 = ATTR_string_search___BM_Pattern____gs( self) /*BM_Pattern::_gs*/;
-    variable6 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable7 =  variable3 /*i*/;
-    variable8 = TAG_Bool(UNTAG_Int( variable7 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable9 = variable8;
-    if (UNTAG_Bool(variable9)) { /* and */
-      variable9 = ATTR_array___AbstractArray____length( variable2 /*suff*/) /*AbstractArray::_length*/;
-      variable9 = TAG_Bool(UNTAG_Int( variable7 /*index*/)<UNTAG_Int(variable9));
+  }
+  label5: while(0);
+  /* ./../lib/standard//string_search.nit:194 */
+  REGB2 = TAG_Int(0);
+  REGB1 = REGB2;
+  /* ./../lib/standard//string_search.nit:195 */
+  while(1) {
+    REGB2 = TAG_Int(1);
+    /* ./../lib/standard//kernel.nit:217 */
+    REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+    /* ./../lib/standard//kernel.nit:212 */
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//string_search.nit:195 */
+    if (UNTAG_Bool(REGB2)) {
+      /* ./../lib/standard//string_search.nit:196 */
+      REGB2 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        nit_abort("Uninitialized attribute %s", "_gs", LOCATE_string_search, 196);
+      }
+      fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+      REGB2 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+      /* ./../lib/standard//collection//array.nit:243 */
+      fra.me.REG[3] = fra.me.REG[1];
+      REGB4 = REGB1;
+      /* ./../lib/standard//collection//array.nit:245 */
+      REGB5 = TAG_Int(0);
+      /* ./../lib/standard//kernel.nit:213 */
+      REGB5 = TAG_Bool(UNTAG_Int(REGB4)>=UNTAG_Int(REGB5));
+      /* ./../lib/standard//collection//array.nit:245 */
+      if (UNTAG_Bool(REGB5)) {
+        REGB5 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 245);
+        }
+        REGB5 = ATTR_array___AbstractArrayRead____length(fra.me.REG[3]);
+        /* ./../lib/standard//kernel.nit:212 */
+        REGB5 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB5));
+      } else {
+        /* ./../lib/standard//collection//array.nit:245 */
+        REGB3 = TAG_Bool(false);
+        REGB5 = REGB3;
+      }
+      if (UNTAG_Bool(REGB5)) {
+      } else {
+        nit_abort("Assert %s  failed", "'index'", LOCATE_array, 245);
+      }
+      /* ./../lib/standard//collection//array.nit:246 */
+      fra.me.REG[3] = ATTR_array___Array____items(fra.me.REG[3]);
+      REGB5 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      if (UNTAG_Bool(REGB5)) {
+        nit_abort("Reciever is null", NULL, LOCATE_array, 246);
+      }
+      /* ./../lib/standard//collection//array.nit:654 */
+      fra.me.REG[3] = ((Nit_NativeArray)fra.me.REG[3])->val[UNTAG_Int(REGB4)];
+      /* ./../lib/standard//collection//array.nit:246 */
+      goto label6;
+      label6: while(0);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB2 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(fra.me.REG[3]));
+      /* ./../lib/standard//string_search.nit:196 */
+      REGB4 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB4 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB4));
+      REGB4 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB1));
+      /* ./../lib/standard//string_search.nit:196 */
+      CALL_abstract_collection___Map_____braeq(fra.me.REG[2])(fra.me.REG[2], REGB2, REGB4);
+      /* ./../lib/standard//string_search.nit:197 */
+      REGB4 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:215 */
+      REGB4 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB4));
+      /* ./../lib/standard//string_search.nit:197 */
+      REGB1 = REGB4;
+    } else {
+      /* ./../lib/standard//string_search.nit:195 */
+      goto label7;
     }
-    variable8 = variable9;
-    if (!UNTAG_Bool(variable8)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-    variable8 = ATTR_array___Array____items( variable2 /*suff*/) /*Array::_items*/;
-    variable8 = UNBOX_NativeArray(variable8)[UNTAG_Int( variable7 /*index*/)];
-    goto return_label26;
-    return_label26: while(false);
-    variable7 = variable8;
-    variable6 = TAG_Int(UNTAG_Int(variable6)-UNTAG_Int(variable7));
-    variable7 = TAG_Int(UNTAG_Int( variable1 /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable7 = TAG_Int(UNTAG_Int(variable7)-UNTAG_Int( variable3 /*i*/));
-    ((array___Array_____braeq_t)CALL(variable5,COLOR_abstract_collection___Map_____braeq))(variable5, variable6, variable7) /*Array::[]=*/;
-    variable3 = TAG_Int(UNTAG_Int(variable3)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_25: while(0);
-  }
-  break_25: while(0);
-  tracehead = trace.prev;
+  }
+  label7: while(0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t string_search___Match___string(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 204, LOCATE_string_search___Match___string};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  tracehead = trace.prev;
-  return ATTR_string_search___Match____string( self) /*Match::_string*/;
+val_t string_search___Match___string(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 204;
+  fra.me.meth = LOCATE_string_search___Match___string;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:204 */
+  REGB0 = TAG_Bool(ATTR_string_search___Match____string(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_string", LOCATE_string_search, 204);
+  }
+  fra.me.REG[0] = ATTR_string_search___Match____string(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
 }
-val_t string_search___Match___from(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 207, LOCATE_string_search___Match___from};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  tracehead = trace.prev;
-  return ATTR_string_search___Match____from( self) /*Match::_from*/;
+val_t string_search___Match___from(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 207;
+  fra.me.meth = LOCATE_string_search___Match___from;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:207 */
+  REGB0 = TAG_Bool(ATTR_string_search___Match____from(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_from", LOCATE_string_search, 207);
+  }
+  REGB0 = ATTR_string_search___Match____from(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
 }
-val_t string_search___Match___length(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 210, LOCATE_string_search___Match___length};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  tracehead = trace.prev;
-  return ATTR_string_search___Match____length( self) /*Match::_length*/;
+val_t string_search___Match___length(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 210;
+  fra.me.meth = LOCATE_string_search___Match___length;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:210 */
+  REGB0 = TAG_Bool(ATTR_string_search___Match____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 210);
+  }
+  REGB0 = ATTR_string_search___Match____length(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
 }
-val_t string_search___Match___after(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 213, LOCATE_string_search___Match___after};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 = ATTR_string_search___Match____from( self) /*Match::_from*/;
-  variable1 = ATTR_string_search___Match____length( self) /*Match::_length*/;
-  variable0 = TAG_Int(UNTAG_Int(variable0)+UNTAG_Int(variable1));
-  goto return_label27;
-  return_label27: while(false);
-  tracehead = trace.prev;
-  return variable0;
+val_t string_search___Match___after(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 213;
+  fra.me.meth = LOCATE_string_search___Match___after;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:215 */
+  REGB0 = TAG_Bool(ATTR_string_search___Match____from(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_from", LOCATE_string_search, 215);
+  }
+  REGB0 = ATTR_string_search___Match____from(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_string_search___Match____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 215);
+  }
+  REGB1 = ATTR_string_search___Match____length(fra.me.REG[0]);
+  /* ./../lib/standard//kernel.nit:215 */
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:215 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB1;
 }
-val_t string_search___Match___to_s(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 217, LOCATE_string_search___Match___to_s};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 = ATTR_string_search___Match____string( self) /*Match::_string*/;
-  variable1 = ATTR_string_search___Match____from( self) /*Match::_from*/;
-  variable2 = ATTR_string_search___Match____length( self) /*Match::_length*/;
-  variable0 = ((string___String___substring_t)CALL(variable0,COLOR_string___String___substring))(variable0, variable1, variable2) /*String::substring*/;
-  goto return_label28;
-  return_label28: while(false);
-  tracehead = trace.prev;
-  return variable0;
+val_t string_search___Match___to_s(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 217;
+  fra.me.meth = LOCATE_string_search___Match___to_s;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:218 */
+  REGB0 = TAG_Bool(ATTR_string_search___Match____string(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_string", LOCATE_string_search, 218);
+  }
+  fra.me.REG[1] = ATTR_string_search___Match____string(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_string_search___Match____from(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_from", LOCATE_string_search, 218);
+  }
+  REGB0 = ATTR_string_search___Match____from(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_string_search___Match____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_string_search, 218);
+  }
+  REGB1 = ATTR_string_search___Match____length(fra.me.REG[0]);
+  fra.me.REG[1] = CALL_string___AbstractString___substring(fra.me.REG[1])(fra.me.REG[1], REGB0, REGB1);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[1];
 }
-void string_search___Match___init(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 220, LOCATE_string_search___Match___init};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 =  param2;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Match].i]) return;
-  variable3 = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable0 /*s*/ ==  NIT_NULL /*null*/) || (( variable0 /*s*/ != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL( variable0 /*s*/,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable0 /*s*/, NIT_NULL /*null*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL( variable0 /*s*/,COLOR_kernel___Object_____eqeq))( variable0 /*s*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable3)) { fprintf(stderr, "Assert%s failed", " 'non_null_string' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_string_search___Match___init, LOCATE_string_search, 223); nit_exit(1);}
-  variable3 = TAG_Bool(UNTAG_Int( variable2 /*len*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable3)) { fprintf(stderr, "Assert%s failed", " 'positive_length' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_string_search___Match___init, LOCATE_string_search, 224); nit_exit(1);}
-  variable3 = TAG_Bool(UNTAG_Int( variable1 /*f*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable3)) { fprintf(stderr, "Assert%s failed", " 'valid_from' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_string_search___Match___init, LOCATE_string_search, 225); nit_exit(1);}
-  variable3 = TAG_Int(UNTAG_Int( variable1 /*f*/)+UNTAG_Int( variable2 /*len*/));
-  variable4 = ((array___AbstractArray___length_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Collection___length))( variable0 /*s*/) /*AbstractArray::length*/;
-  variable3 = TAG_Bool(UNTAG_Int(variable3)<=UNTAG_Int(variable4));
-  if (!UNTAG_Bool(variable3)) { fprintf(stderr, "Assert%s failed", " 'valid_after' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_string_search___Match___init, LOCATE_string_search, 226); nit_exit(1);}
-  ATTR_string_search___Match____string( self) /*Match::_string*/ =  variable0 /*s*/;
-  ATTR_string_search___Match____from( self) /*Match::_from*/ =  variable1 /*f*/;
-  ATTR_string_search___Match____length( self) /*Match::_length*/ =  variable2 /*len*/;
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Match].i] = 1;
-  tracehead = trace.prev;
+void string_search___Match___init(val_t p0, val_t p1, val_t p2, val_t p3, int* init_table){
+  int itpos2 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_Match].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  if (init_table[itpos2]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 220;
+  fra.me.meth = LOCATE_string_search___Match___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  REGB1 = p3;
+  /* ./../lib/standard//string_search.nit:223 */
+  REGB2 = TAG_Int(0);
+  /* ./../lib/standard//kernel.nit:213 */
+  REGB2 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB2));
+  /* ./../lib/standard//string_search.nit:223 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    nit_abort("Assert %s  failed", "'positive_length'", LOCATE_string_search, 223);
+  }
+  /* ./../lib/standard//string_search.nit:224 */
+  REGB2 = TAG_Int(0);
+  /* ./../lib/standard//kernel.nit:213 */
+  REGB2 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB2));
+  /* ./../lib/standard//string_search.nit:224 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    nit_abort("Assert %s  failed", "'valid_from'", LOCATE_string_search, 224);
+  }
+  /* ./../lib/standard//kernel.nit:215 */
+  REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:23 */
+  REGB3 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  if (UNTAG_Bool(REGB3)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+  }
+  REGB3 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  /* ./../lib/standard//kernel.nit:211 */
+  REGB3 = TAG_Bool(UNTAG_Int(REGB2)<=UNTAG_Int(REGB3));
+  /* ./../lib/standard//string_search.nit:225 */
+  if (UNTAG_Bool(REGB3)) {
+  } else {
+    nit_abort("Assert %s  failed", "'valid_after'", LOCATE_string_search, 225);
+  }
+  /* ./../lib/standard//string_search.nit:226 */
+  ATTR_string_search___Match____string(fra.me.REG[0]) = fra.me.REG[1];
+  /* ./../lib/standard//string_search.nit:227 */
+  ATTR_string_search___Match____from(fra.me.REG[0]) = REGB0;
+  /* ./../lib/standard//string_search.nit:228 */
+  ATTR_string_search___Match____length(fra.me.REG[0]) = REGB1;
+  stack_frame_head = fra.me.prev;
+  init_table[itpos2] = 1;
   return;
 }
-val_t string_search___Char___search_index_in(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 235, LOCATE_string_search___Char___search_index_in};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable3 = ((array___AbstractArray___length_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Collection___length))( variable0 /*s*/) /*AbstractArray::length*/;
-  variable2 = variable3;
-  while (true) { /*while*/
-    variable3 = TAG_Bool(UNTAG_Int( variable1 /*from*/)<UNTAG_Int( variable2 /*stop*/));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable3 = ((string___String_____bra_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Map_____bra))( variable0 /*s*/,  variable1 /*from*/) /*String::[]*/;
-    variable3 = TAG_Bool((variable3)==( self));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      variable2 =  variable1 /*from*/;
-      goto return_label30;
+val_t string_search___Char___search_index_in(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 234;
+  fra.me.meth = LOCATE_string_search___Char___search_index_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  REGB0 = p0;
+  fra.me.REG[0] = p1;
+  REGB1 = p2;
+  /* ./../lib/standard//collection//array.nit:23 */
+  REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+  }
+  REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:237 */
+  while(1) {
+    /* ./../lib/standard//kernel.nit:212 */
+    REGB3 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//string_search.nit:237 */
+    if (UNTAG_Bool(REGB3)) {
+      /* ./../lib/standard//string_search.nit:238 */
+      REGB3 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB1);
+      REGB4 = TAG_Bool(IS_EQUAL_OO(REGB3,REGB0));
+      if (UNTAG_Bool(REGB4)) {
+      } else {
+        /* ./../lib/standard//kernel.nit:347 */
+        REGB3 = TAG_Bool((REGB3)==(REGB0));
+        /* ./../lib/standard//string_search.nit:238 */
+        REGB4 = REGB3;
+      }
+      if (UNTAG_Bool(REGB4)) {
+        REGB4 = REGB1;
+        goto label1;
+      }
+      /* ./../lib/standard//string_search.nit:239 */
+      REGB3 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:215 */
+      REGB3 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
+      /* ./../lib/standard//string_search.nit:239 */
+      REGB1 = REGB3;
+    } else {
+      /* ./../lib/standard//string_search.nit:237 */
+      goto label2;
     }
-    variable1 = TAG_Int(UNTAG_Int(variable1)+UNTAG_Int( TAG_Int(1))) /*from*/;
-    continue_31: while(0);
-  }
-  break_31: while(0);
-  variable3 = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable2 = variable3;
-  goto return_label30;
-  return_label30: while(false);
-  tracehead = trace.prev;
-  return variable2;
+  }
+  label2: while(0);
+  /* ./../lib/standard//string_search.nit:241 */
+  REGB1 = TAG_Int(1);
+  /* ./../lib/standard//kernel.nit:216 */
+  REGB1 = TAG_Int(-UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:241 */
+  REGB4 = REGB1;
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB4;
 }
-val_t string_search___Char___search_in(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 245, LOCATE_string_search___Char___search_in};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable3 = ((string_search___Char___search_index_in_t)CALL( self,COLOR_string_search___Pattern___search_index_in))( self,  variable0 /*s*/,  variable1 /*from*/) /*Char::search_index_in*/;
-  variable2 = variable3;
-  variable3 = TAG_Bool(UNTAG_Int( variable2 /*pos*/)<UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable3)) { /*if*/
-    variable2 =  NIT_NULL /*null*/;
-    goto return_label32;
-  } else { /*if*/
-    variable3 = NEW_Match_string_search___Match___init( variable0 /*s*/,  variable2 /*pos*/,  TAG_Int(1)); /*new Match*/
-    variable2 = variable3;
-    goto return_label32;
-  }
-  return_label32: while(false);
-  tracehead = trace.prev;
-  return variable2;
+val_t string_search___Char___search_in(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 244;
+  fra.me.meth = LOCATE_string_search___Char___search_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  REGB0 = p0;
+  fra.me.REG[0] = p1;
+  REGB1 = p2;
+  /* ./../lib/standard//string_search.nit:246 */
+  REGB1 = CALL_string_search___Pattern___search_index_in(REGB0)(REGB0, fra.me.REG[0], REGB1);
+  /* ./../lib/standard//string_search.nit:247 */
+  REGB0 = TAG_Int(0);
+  /* ./../lib/standard//kernel.nit:212 */
+  REGB0 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB0));
+  /* ./../lib/standard//string_search.nit:247 */
+  if (UNTAG_Bool(REGB0)) {
+    /* ./../lib/standard//string_search.nit:248 */
+    fra.me.REG[1] = NIT_NULL;
+    goto label1;
+  } else {
+    /* ./../lib/standard//string_search.nit:250 */
+    REGB0 = TAG_Int(1);
+    fra.me.REG[0] = NEW_Match_string_search___Match___init(fra.me.REG[0], REGB1, REGB0);
+    fra.me.REG[1] = fra.me.REG[0];
+    goto label1;
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[1];
 }
-val_t string_search___String___search_index_in(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 258, LOCATE_string_search___String___search_index_in};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-      val_t variable5;
-        val_t variable6;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*from*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable2)) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_string_search___String___search_index_in, LOCATE_string_search, 260); nit_exit(1);}
-  variable3 = ((array___AbstractArray___length_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Collection___length))( variable0 /*s*/) /*AbstractArray::length*/;
-  variable4 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable3 = TAG_Int(UNTAG_Int(variable3)-UNTAG_Int(variable4));
-  variable3 = TAG_Int(UNTAG_Int(variable3)+UNTAG_Int( TAG_Int(1)));
-  variable2 = variable3;
-  while (true) { /*while*/
-    variable3 = TAG_Bool(UNTAG_Int( variable1 /*from*/)<UNTAG_Int( variable2 /*stop*/));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable4 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-    variable4 = TAG_Int(UNTAG_Int(variable4)-UNTAG_Int( TAG_Int(1)));
-    variable3 = variable4;
-    while (true) { /*while*/
-      variable4 = TAG_Bool(UNTAG_Int( variable3 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-      variable5 = variable4;
-      if (UNTAG_Bool(variable5)) { /* and */
-        variable5 = ((string___String_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable3 /*i*/) /*String::[]*/;
-        variable6 = TAG_Int(UNTAG_Int( variable3 /*i*/)+UNTAG_Int( variable1 /*from*/));
-        variable6 = ((string___String_____bra_t)CALL( variable0 /*s*/,COLOR_abstract_collection___Map_____bra))( variable0 /*s*/, variable6) /*String::[]*/;
-        variable5 = TAG_Bool((variable5)==(variable6));
+val_t string_search___String___search_index_in(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t REGB5;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 257;
+  fra.me.meth = LOCATE_string_search___String___search_index_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  /* ./../lib/standard//string_search.nit:259 */
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//kernel.nit:213 */
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:259 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Assert failed", NULL, LOCATE_string_search, 259);
+  }
+  /* ./../lib/standard//collection//array.nit:23 */
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+  }
+  REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//kernel.nit:217 */
+  REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
+  /* ./../lib/standard//string_search.nit:260 */
+  REGB1 = TAG_Int(1);
+  /* ./../lib/standard//kernel.nit:215 */
+  REGB1 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:261 */
+  while(1) {
+    /* ./../lib/standard//kernel.nit:212 */
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//string_search.nit:261 */
+    if (UNTAG_Bool(REGB2)) {
+      /* ./../lib/standard//collection//array.nit:23 */
+      REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
       }
-      variable4 = variable5;
-      if (!UNTAG_Bool(variable4)) break; /* while*/
-      variable3 = TAG_Int(UNTAG_Int(variable3)-UNTAG_Int( TAG_Int(1))) /*i*/;
-      continue_35: while(0);
-    }
-    break_35: while(0);
-    variable4 = TAG_Bool(UNTAG_Int( variable3 /*i*/)<UNTAG_Int( TAG_Int(0)));
-    if (UNTAG_Bool(variable4)) { /*if*/
-      variable2 =  variable1 /*from*/;
-      goto return_label33;
+      REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+      /* ./../lib/standard//string_search.nit:262 */
+      REGB3 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:217 */
+      REGB3 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB3));
+      /* ./../lib/standard//string_search.nit:263 */
+      while(1) {
+        REGB2 = TAG_Int(0);
+        /* ./../lib/standard//kernel.nit:213 */
+        REGB2 = TAG_Bool(UNTAG_Int(REGB3)>=UNTAG_Int(REGB2));
+        /* ./../lib/standard//string_search.nit:263 */
+        if (UNTAG_Bool(REGB2)) {
+          REGB2 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB3);
+          /* ./../lib/standard//kernel.nit:215 */
+          REGB4 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB0));
+          /* ./../lib/standard//string_search.nit:263 */
+          REGB4 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB4);
+          REGB5 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB4));
+          if (UNTAG_Bool(REGB5)) {
+          } else {
+            /* ./../lib/standard//kernel.nit:347 */
+            REGB4 = TAG_Bool((REGB2)==(REGB4));
+            /* ./../lib/standard//string_search.nit:263 */
+            REGB5 = REGB4;
+          }
+        } else {
+          REGB4 = TAG_Bool(false);
+          REGB5 = REGB4;
+        }
+        if (UNTAG_Bool(REGB5)) {
+          REGB5 = TAG_Int(1);
+          /* ./../lib/standard//kernel.nit:217 */
+          REGB5 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB5));
+          /* ./../lib/standard//string_search.nit:263 */
+          REGB3 = REGB5;
+        } else {
+          goto label1;
+        }
+      }
+      label1: while(0);
+      /* ./../lib/standard//string_search.nit:265 */
+      REGB5 = TAG_Int(0);
+      /* ./../lib/standard//kernel.nit:212 */
+      REGB5 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB5));
+      /* ./../lib/standard//string_search.nit:265 */
+      if (UNTAG_Bool(REGB5)) {
+        REGB5 = REGB0;
+        goto label2;
+      }
+      /* ./../lib/standard//string_search.nit:267 */
+      REGB3 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:215 */
+      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
+      /* ./../lib/standard//string_search.nit:267 */
+      REGB0 = REGB3;
+    } else {
+      /* ./../lib/standard//string_search.nit:261 */
+      goto label3;
     }
-    variable1 = TAG_Int(UNTAG_Int(variable1)+UNTAG_Int( TAG_Int(1))) /*from*/;
-    continue_34: while(0);
-  }
-  break_34: while(0);
-  variable3 = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable2 = variable3;
-  goto return_label33;
-  return_label33: while(false);
-  tracehead = trace.prev;
-  return variable2;
+  }
+  label3: while(0);
+  /* ./../lib/standard//string_search.nit:269 */
+  REGB0 = TAG_Int(1);
+  /* ./../lib/standard//kernel.nit:216 */
+  REGB0 = TAG_Int(-UNTAG_Int(REGB0));
+  /* ./../lib/standard//string_search.nit:269 */
+  REGB5 = REGB0;
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB5;
 }
-val_t string_search___String___search_in(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 273, LOCATE_string_search___String___search_in};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-    val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable3 = ((string_search___String___search_index_in_t)CALL( self,COLOR_string_search___Pattern___search_index_in))( self,  variable0 /*s*/,  variable1 /*from*/) /*String::search_index_in*/;
-  variable2 = variable3;
-  variable3 = TAG_Bool(UNTAG_Int( variable2 /*pos*/)<UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable3)) { /*if*/
-    variable2 =  NIT_NULL /*null*/;
-    goto return_label36;
-  } else { /*if*/
-    variable3 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-    variable4 = NEW_Match_string_search___Match___init( variable0 /*s*/,  variable2 /*pos*/, variable3); /*new Match*/
-    variable3 = variable4;
-    variable2 = variable3;
-    goto return_label36;
-  }
-  return_label36: while(false);
-  tracehead = trace.prev;
-  return variable2;
+val_t string_search___String___search_in(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 272;
+  fra.me.meth = LOCATE_string_search___String___search_in;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  /* ./../lib/standard//string_search.nit:274 */
+  REGB0 = CALL_string_search___Pattern___search_index_in(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+  /* ./../lib/standard//string_search.nit:275 */
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//kernel.nit:212 */
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:275 */
+  if (UNTAG_Bool(REGB1)) {
+    /* ./../lib/standard//string_search.nit:276 */
+    fra.me.REG[2] = NIT_NULL;
+    goto label1;
+  } else {
+    /* ./../lib/standard//collection//array.nit:23 */
+    REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+    }
+    REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+    /* ./../lib/standard//string_search.nit:278 */
+    fra.me.REG[1] = NEW_Match_string_search___Match___init(fra.me.REG[1], REGB0, REGB1);
+    fra.me.REG[2] = fra.me.REG[1];
+    goto label1;
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[2];
 }
-val_t string_search___String___search(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 283, LOCATE_string_search___String___search};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 = ((string_search___Pattern___search_in_t)CALL( variable0 /*p*/,COLOR_string_search___Pattern___search_in))( variable0 /*p*/,  self,  TAG_Int(0)) /*Pattern::search_in*/;
-  goto return_label37;
-  return_label37: while(false);
-  tracehead = trace.prev;
-  return variable1;
+val_t string_search___String___search(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 282;
+  fra.me.meth = LOCATE_string_search___String___search;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//string_search.nit:283 */
+  REGB0 = TAG_Int(0);
+  fra.me.REG[0] = CALL_string_search___Pattern___search_in(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0], REGB0);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
 }
-val_t string_search___String___search_from(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 286, LOCATE_string_search___String___search_from};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 = ((string_search___Pattern___search_in_t)CALL( variable0 /*p*/,COLOR_string_search___Pattern___search_in))( variable0 /*p*/,  self,  variable1 /*from*/) /*Pattern::search_in*/;
-  goto return_label38;
-  return_label38: while(false);
-  tracehead = trace.prev;
-  return variable2;
+val_t string_search___String___search_from(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 285;
+  fra.me.meth = LOCATE_string_search___String___search_from;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  /* ./../lib/standard//string_search.nit:288 */
+  fra.me.REG[0] = CALL_string_search___Pattern___search_in(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0], REGB0);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
 }
-val_t string_search___String___search_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 291, LOCATE_string_search___String___search_all};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable1 = ((string_search___Pattern___search_all_in_t)CALL( variable0 /*p*/,COLOR_string_search___Pattern___search_all_in))( variable0 /*p*/,  self) /*Pattern::search_all_in*/;
-  goto return_label39;
-  return_label39: while(false);
-  tracehead = trace.prev;
-  return variable1;
+val_t string_search___String___search_all(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 290;
+  fra.me.meth = LOCATE_string_search___String___search_all;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//string_search.nit:297 */
+  fra.me.REG[0] = CALL_string_search___Pattern___search_all_in(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
 }
-val_t string_search___String___split_with(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 300, LOCATE_string_search___String___split_with};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-    val_t variable5;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 =  param0;
-  variable2 = ((string_search___Pattern___split_in_t)CALL( variable0 /*p*/,COLOR_string_search___Pattern___split_in))( variable0 /*p*/,  self) /*Pattern::split_in*/;
-  variable1 = variable2;
-  variable3 = ((array___AbstractArray___length_t)CALL( variable1 /*matches*/,COLOR_abstract_collection___Collection___length))( variable1 /*matches*/) /*AbstractArray::length*/;
-  variable4 = NEW_Array_array___Array___with_capacity(variable3); /*new Array[String]*/
-  variable3 = variable4;
-  variable2 = variable3;
-  variable3 = ((array___AbstractArray___iterator_t)CALL( variable1 /*matches*/,COLOR_abstract_collection___Collection___iterator))( variable1 /*matches*/) /*AbstractArray::iterator*/;
-  while (true) { /*for*/
-    variable4 = ((array___ArrayIterator___is_ok_t)CALL(variable3,COLOR_abstract_collection___Iterator___is_ok))(variable3) /*ArrayIterator::is_ok*/;
-    if (!UNTAG_Bool(variable4)) break; /*for*/
-    variable4 = ((array___ArrayIterator___item_t)CALL(variable3,COLOR_abstract_collection___Iterator___item))(variable3) /*ArrayIterator::item*/;
-    variable5 = ((string_search___Match___to_s_t)CALL( variable4 /*m*/,COLOR_string___Object___to_s))( variable4 /*m*/) /*Match::to_s*/;
-    ((array___AbstractArray___add_t)CALL( variable2 /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable2 /*res*/, variable5) /*AbstractArray::add*/;
-    continue_41: while(0);
-    ((array___ArrayIterator___next_t)CALL(variable3,COLOR_abstract_collection___Iterator___next))(variable3) /*ArrayIterator::next*/;
-  }
-  break_41: while(0);
-  variable1 =  variable2 /*res*/;
-  goto return_label40;
-  return_label40: while(false);
-  tracehead = trace.prev;
-  return variable1;
+val_t string_search___String___split_with(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 299;
+  fra.me.meth = LOCATE_string_search___String___split_with;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 4;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[3] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//string_search.nit:303 */
+  fra.me.REG[0] = CALL_string_search___Pattern___split_in(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:23 */
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:304 */
+  fra.me.REG[1] = NEW_Array_array___Array___with_capacity(REGB0);
+  /* ./../lib/standard//collection//array.nit:234 */
+  REGB0 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:235 */
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 235);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:236 */
+  fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:237 */
+  while(1) {
+    /* ./../lib/standard//collection//array.nit:23 */
+    REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      nit_abort("Uninitialized attribute %s", "_length", LOCATE_array, 23);
+    }
+    REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+    /* ./../lib/standard//kernel.nit:212 */
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:237 */
+    if (UNTAG_Bool(REGB1)) {
+      /* ./../lib/standard//collection//array.nit:238 */
+      REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+      if (UNTAG_Bool(REGB1)) {
+        nit_abort("Reciever is null", NULL, LOCATE_array, 238);
+      }
+      /* ./../lib/standard//collection//array.nit:654 */
+      fra.me.REG[3] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB0)];
+      /* ./../lib/standard//string_search.nit:305 */
+      fra.me.REG[3] = CALL_string___Object___to_s(fra.me.REG[3])(fra.me.REG[3]);
+      CALL_abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[3]);
+      /* ./../lib/standard//collection//array.nit:239 */
+      REGB1 = TAG_Int(1);
+      /* ./../lib/standard//kernel.nit:215 */
+      REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+      /* ./../lib/standard//collection//array.nit:239 */
+      REGB0 = REGB1;
+    } else {
+      /* ./../lib/standard//collection//array.nit:237 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  /* ./../lib/standard//string_search.nit:306 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[1];
 }
-val_t string_search___String___split(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 310, LOCATE_string_search___String___split};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable0 = ((string_search___String___split_with_t)CALL( self,COLOR_string_search___String___split_with))( self,  TAG_Char('\n')) /*String::split_with*/;
-  goto return_label42;
-  return_label42: while(false);
-  tracehead = trace.prev;
-  return variable0;
+val_t string_search___String___split(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_string_search;
+  fra.me.line = 309;
+  fra.me.meth = LOCATE_string_search___String___split;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* ./../lib/standard//string_search.nit:311 */
+  REGB0 = TAG_Char('\n');
+  fra.me.REG[0] = CALL_string_search___String___split_with(fra.me.REG[0])(fra.me.REG[0], REGB0);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
 }