gc: default to nitgc when boehm is not available

[nit.git] / c_src / string_search._sep.c

diff --git a/c_src/string_search._sep.c b/c_src/string_search._sep.c
index 5907fc4..ec5d85b 100644 (file)
--- a/c_src/string_search._sep.c
+++ b/c_src/string_search._sep.c
@@ -1,918 +1,1794 @@
 /* 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};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
+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 */
   fprintf(stderr, "Deferred method called");
   fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 21);
   nit_exit(1);
-  tracehead = trace.prev;
+  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};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
+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 */
   fprintf(stderr, "Deferred method called");
   fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 26);
   nit_exit(1);
-  tracehead = trace.prev;
+  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 variable[7];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[4] = NEW_Array_array___Array___init(); /*new Array[Match]*/
-  variable[3] = variable[4];
-  variable[5] = variable[0];
-  variable[5] = ((string_search___Pattern___search_in_t)CALL(variable[5],COLOR_string_search___Pattern___search_in))(variable[5],  variable[1] /*s*/,  TAG_Int(0)) /*Pattern::search_in*/;
-  variable[4] = variable[5];
-  while (true) { /*while*/
-    variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*match*/ ==  NIT_NULL /*null*/) || (( variable[4] /*match*/ != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL( variable[4] /*match*/,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*match*/, NIT_NULL /*null*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL( variable[4] /*match*/,COLOR_kernel___Object_____eqeq))( variable[4] /*match*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (!UNTAG_Bool(variable[5])) break; /* while*/
-    ((array___AbstractArray___add_t)CALL( variable[3] /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable[3] /*res*/,  variable[4] /*match*/) /*AbstractArray::add*/;
-    variable[5] = variable[0];
-    variable[6] = ((string_search___Match___after_t)CALL( variable[4] /*match*/,COLOR_string_search___Match___after))( variable[4] /*match*/) /*Match::after*/;
-    variable[5] = ((string_search___Pattern___search_in_t)CALL(variable[5],COLOR_string_search___Pattern___search_in))(variable[5],  variable[1] /*s*/, variable[6]) /*Pattern::search_in*/;
-    variable[4] = variable[5] /*match=*/;
-    continue_1: while(0);
-  }
-  break_1: while(0);
-  variable[2] =  variable[3] /*res*/;
-  goto return_label0;
-  return_label0: while(false);
-  tracehead = trace.prev;
-  return variable[2];
+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;
+  fra.me.REG[2] = NEW_Array_array___Array___init();
+  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 */
+      array___Array___add(fra.me.REG[2], fra.me.REG[3]);
+      REGB0 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      /* ./../lib/standard//string_search.nit:37 */
+      if (UNTAG_Bool(REGB0)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 37);
+        nit_exit(1);
+      }
+      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 variable[8];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[4] = NEW_Array_array___Array___init(); /*new Array[Match]*/
-  variable[3] = variable[4];
-  variable[4] =  TAG_Int(0);
-  variable[6] = variable[0];
-  variable[6] = ((string_search___Pattern___search_in_t)CALL(variable[6],COLOR_string_search___Pattern___search_in))(variable[6],  variable[1] /*s*/,  TAG_Int(0)) /*Pattern::search_in*/;
-  variable[5] = variable[6];
-  while (true) { /*while*/
-    variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*match*/ ==  NIT_NULL /*null*/) || (( variable[5] /*match*/ != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL( variable[5] /*match*/,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*match*/, NIT_NULL /*null*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL( variable[5] /*match*/,COLOR_kernel___Object_____eqeq))( variable[5] /*match*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (!UNTAG_Bool(variable[6])) break; /* while*/
-    variable[7] = ((string_search___Match___from_t)CALL( variable[5] /*match*/,COLOR_string_search___Match___from))( variable[5] /*match*/) /*Match::from*/;
-    variable[7] = TAG_Int(UNTAG_Int(variable[7])-UNTAG_Int( variable[4] /*i*/));
-    variable[6] = variable[7];
-    variable[7] = NEW_Match_string_search___Match___init( variable[1] /*s*/,  variable[4] /*i*/,  variable[6] /*len*/); /*new Match*/
-    ((array___AbstractArray___add_t)CALL( variable[3] /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable[3] /*res*/, variable[7]) /*AbstractArray::add*/;
-    variable[7] = ((string_search___Match___after_t)CALL( variable[5] /*match*/,COLOR_string_search___Match___after))( variable[5] /*match*/) /*Match::after*/;
-    variable[4] = variable[7] /*i=*/;
-    variable[7] = variable[0];
-    variable[7] = ((string_search___Pattern___search_in_t)CALL(variable[7],COLOR_string_search___Pattern___search_in))(variable[7],  variable[1] /*s*/,  variable[4] /*i*/) /*Pattern::search_in*/;
-    variable[5] = variable[7] /*match=*/;
-    continue_3: while(0);
-  }
-  break_3: while(0);
-  variable[6] = ((array___AbstractArray___length_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Collection___length))( variable[1] /*s*/) /*AbstractArray::length*/;
-  variable[6] = TAG_Int(UNTAG_Int(variable[6])-UNTAG_Int( variable[4] /*i*/));
-  variable[7] = NEW_Match_string_search___Match___init( variable[1] /*s*/,  variable[4] /*i*/, variable[6]); /*new Match*/
-  variable[6] = variable[7];
-  ((array___AbstractArray___add_t)CALL( variable[3] /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable[3] /*res*/, variable[6]) /*AbstractArray::add*/;
-  variable[2] =  variable[3] /*res*/;
-  goto return_label2;
-  return_label2: while(false);
-  tracehead = trace.prev;
-  return variable[2];
+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;
+  fra.me.REG[2] = NEW_Array_array___Array___init();
+  REGB0 = TAG_Int(0);
+  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)) {
+      REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      /* ./../lib/standard//string_search.nit:50 */
+      if (UNTAG_Bool(REGB1)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 50);
+        nit_exit(1);
+      }
+      REGB1 = CALL_string_search___Match___from(fra.me.REG[3])(fra.me.REG[3]);
+      REGB1 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
+      fra.me.REG[4] = NEW_Match_string_search___Match___init(fra.me.REG[1], REGB0, REGB1);
+      /* ./../lib/standard//string_search.nit:51 */
+      array___Array___add(fra.me.REG[2], fra.me.REG[4]);
+      REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      /* ./../lib/standard//string_search.nit:52 */
+      if (UNTAG_Bool(REGB1)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 52);
+        nit_exit(1);
+      }
+      REGB1 = CALL_string_search___Match___after(fra.me.REG[3])(fra.me.REG[3]);
+      REGB0 = REGB1;
+      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];
+    /* ./../lib/standard//string_search.nit:53 */
+    } else {
+      /* ./../lib/standard//string_search.nit:48 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  REGB1 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
+  fra.me.REG[1] = NEW_Match_string_search___Match___init(fra.me.REG[1], REGB0, REGB1);
+  /* ./../lib/standard//string_search.nit:56 */
+  array___Array___add(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};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  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 variable[3];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[2] = variable[0];
-  variable[2] = ATTR_string_search___BM_Pattern____motif(variable[2]) /*BM_Pattern::_motif*/;
-  variable[1] = variable[2];
-  goto return_label4;
-  return_label4: while(false);
-  tracehead = trace.prev;
-  return variable[1];
+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;
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:67 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_motif");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 67);
+    nit_exit(1);
+  }
+  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 variable[15];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[4] = TAG_Bool(UNTAG_Int( variable[2] /*from*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable[4])) { 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);}
-  variable[5] = ((array___AbstractArray___length_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Collection___length))( variable[1] /*s*/) /*AbstractArray::length*/;
-  variable[4] = variable[5];
-  variable[6] = variable[0];
-  variable[6] = ATTR_string_search___BM_Pattern____length(variable[6]) /*BM_Pattern::_length*/;
-  variable[5] = variable[6];
-  variable[6] =  variable[2] /*from*/;
-  while (true) { /*while*/
-    variable[7] = TAG_Int(UNTAG_Int( variable[4] /*n*/)-UNTAG_Int( variable[5] /*m*/));
-    variable[7] = TAG_Int(UNTAG_Int(variable[7])+UNTAG_Int( TAG_Int(1)));
-    variable[7] = TAG_Bool(UNTAG_Int( variable[6] /*j*/)<UNTAG_Int(variable[7]));
-    if (!UNTAG_Bool(variable[7])) break; /* while*/
-    variable[8] = TAG_Int(UNTAG_Int( variable[5] /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable[7] = variable[8];
-    while (true) { /*while*/
-      variable[8] = TAG_Bool(UNTAG_Int( variable[7] /*i*/)>=UNTAG_Int( TAG_Int(0)));
-      variable[9] = variable[8];
-      if (UNTAG_Bool(variable[9])) { /* and */
-        variable[9] = variable[0];
-        variable[9] = ATTR_string_search___BM_Pattern____motif(variable[9]) /*BM_Pattern::_motif*/;
-        variable[9] = ((string___String_____bra_t)CALL(variable[9],COLOR_abstract_collection___Map_____bra))(variable[9],  variable[7] /*i*/) /*String::[]*/;
-        variable[10] = TAG_Int(UNTAG_Int( variable[7] /*i*/)+UNTAG_Int( variable[6] /*j*/));
-        variable[10] = ((string___String_____bra_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Map_____bra))( variable[1] /*s*/, variable[10]) /*String::[]*/;
-        variable[9] = TAG_Bool((variable[9])==(variable[10]));
-      }
-      variable[8] = variable[9];
-      if (!UNTAG_Bool(variable[8])) break; /* while*/
-      variable[7] = TAG_Int(UNTAG_Int(variable[7])-UNTAG_Int( TAG_Int(1))) /*i*/;
-      continue_7: while(0);
-    }
-    break_7: while(0);
-    variable[8] = TAG_Bool(UNTAG_Int( variable[7] /*i*/)<UNTAG_Int( TAG_Int(0)));
-    if (UNTAG_Bool(variable[8])) { /*if*/
-      variable[3] =  variable[6] /*j*/;
-      goto return_label5;
-    } else { /*if*/
-      variable[9] = variable[0];
-      variable[9] = ATTR_string_search___BM_Pattern____gs(variable[9]) /*BM_Pattern::_gs*/;
-      variable[10] = variable[9];
-      variable[11] =  variable[7] /*i*/;
-      variable[13] = TAG_Bool(UNTAG_Int( variable[11] /*index*/)>=UNTAG_Int( TAG_Int(0)));
-      variable[14] = variable[13];
-      if (UNTAG_Bool(variable[14])) { /* and */
-        variable[14] = variable[10];
-        variable[14] = ATTR_array___AbstractArray____length(variable[14]) /*AbstractArray::_length*/;
-        variable[14] = TAG_Bool(UNTAG_Int( variable[11] /*index*/)<UNTAG_Int(variable[14]));
+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;
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:72 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Assert failed");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 72);
+    nit_exit(1);
+  }
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  REGB2 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:74 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 74);
+    nit_exit(1);
+  }
+  REGB2 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:77 */
+  while(1) {
+    REGB3 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
+    REGB4 = TAG_Int(1);
+    REGB4 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB4));
+    REGB4 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB4));
+    /* ./../lib/standard//string_search.nit:77 */
+    if (UNTAG_Bool(REGB4)) {
+      REGB4 = TAG_Int(1);
+      REGB4 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB4));
+      /* ./../lib/standard//string_search.nit:79 */
+      while(1) {
+        REGB3 = TAG_Int(0);
+        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 {
+            fprintf(stderr, "Uninitialized attribute %s", "_motif");
+            fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 79);
+            nit_exit(1);
+          }
+          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);
+          REGB5 = TAG_Int(UNTAG_Int(REGB4)+UNTAG_Int(REGB0));
+          REGB5 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB5);
+          REGB6 = TAG_Bool(IS_EQUAL_OO(REGB3,REGB5));
+          /* ./../lib/standard//string_search.nit:79 */
+          if (UNTAG_Bool(REGB6)) {
+          } else {
+            REGB5 = TAG_Bool((REGB3)==(REGB5));
+            REGB6 = REGB5;
+          /* ./../lib/standard//string_search.nit:79 */
+          }
+        } else {
+          REGB5 = TAG_Bool(false);
+          REGB6 = REGB5;
+        }
+        if (UNTAG_Bool(REGB6)) {
+          REGB6 = TAG_Int(1);
+          REGB6 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB6));
+          REGB4 = REGB6;
+        /* ./../lib/standard//string_search.nit:79 */
+        } else {
+          goto label1;
+        }
       }
-      variable[13] = variable[14];
-      if (!UNTAG_Bool(variable[13])) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-      variable[13] = variable[10];
-      variable[13] = ATTR_array___Array____items(variable[13]) /*Array::_items*/;
-      variable[13] = UNBOX_NativeArray(variable[13])[UNTAG_Int( variable[11] /*index*/)];
-      variable[12] = variable[13];
-      goto return_label8;
-      return_label8: while(false);
-      variable[9] = variable[12];
-      variable[8] = variable[9];
-      variable[10] = variable[0];
-      variable[11] = TAG_Int(UNTAG_Int( variable[7] /*i*/)+UNTAG_Int( variable[6] /*j*/));
-      variable[11] = ((string___String_____bra_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Map_____bra))( variable[1] /*s*/, variable[11]) /*String::[]*/;
-      variable[10] = ((string_search___BM_Pattern___bc_t)CALL(variable[10],COLOR_string_search___BM_Pattern___bc))(variable[10], variable[11]) /*BM_Pattern::bc*/;
-      variable[10] = TAG_Int(UNTAG_Int(variable[10])-UNTAG_Int( variable[5] /*m*/));
-      variable[10] = TAG_Int(UNTAG_Int(variable[10])+UNTAG_Int( TAG_Int(1)));
-      variable[10] = TAG_Int(UNTAG_Int(variable[10])+UNTAG_Int( variable[7] /*i*/));
-      variable[9] = variable[10];
-      variable[10] = TAG_Bool(UNTAG_Int( variable[8] /*gs*/)>UNTAG_Int( variable[9] /*bc*/));
-      if (UNTAG_Bool(variable[10])) { /*if*/
-        variable[6] = TAG_Int(UNTAG_Int(variable[6])+UNTAG_Int( variable[8] /*gs*/)) /*j*/;
-      } else { /*if*/
-        variable[6] = TAG_Int(UNTAG_Int(variable[6])+UNTAG_Int( variable[9] /*bc*/)) /*j*/;
+      label1: while(0);
+      REGB6 = TAG_Int(0);
+      REGB6 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB6));
+      /* ./../lib/standard//string_search.nit:80 */
+      if (UNTAG_Bool(REGB6)) {
+        REGB6 = REGB0;
+        /* ./../lib/standard//string_search.nit:81 */
+        goto label2;
+      } else {
+        REGB5 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+        /* ./../lib/standard//string_search.nit:83 */
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          fprintf(stderr, "Uninitialized attribute %s", "_gs");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 83);
+          nit_exit(1);
+        }
+        fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+        REGB5 = REGB4;
+        REGB3 = TAG_Int(0);
+        REGB3 = TAG_Bool(UNTAG_Int(REGB5)>=UNTAG_Int(REGB3));
+        /* ./../lib/standard//collection//array.nit:233 */
+        if (UNTAG_Bool(REGB3)) {
+          REGB3 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+          if (UNTAG_Bool(REGB3)) {
+          } else {
+            fprintf(stderr, "Uninitialized attribute %s", "_length");
+            fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+            nit_exit(1);
+          }
+          REGB3 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+          REGB3 = TAG_Bool(UNTAG_Int(REGB5)<UNTAG_Int(REGB3));
+        /* ./../lib/standard//collection//array.nit:233 */
+        } else {
+          REGB7 = TAG_Bool(false);
+          REGB3 = REGB7;
+        }
+        if (UNTAG_Bool(REGB3)) {
+        } else {
+          fprintf(stderr, "Assert %s  failed", "'index'");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+          nit_exit(1);
+        }
+        fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+        REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        /* ./../lib/standard//collection//array.nit:234 */
+        if (UNTAG_Bool(REGB3)) {
+          fprintf(stderr, "Reciever is null");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+          nit_exit(1);
+        }
+        fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB5)];
+        /* ./../lib/standard//collection//array.nit:234 */
+        goto label3;
+        label3: while(0);
+        REGB5 = fra.me.REG[2];
+        REGB3 = TAG_Int(UNTAG_Int(REGB4)+UNTAG_Int(REGB0));
+        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);
+        REGB3 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB2));
+        REGB7 = TAG_Int(1);
+        REGB7 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB7));
+        REGB4 = TAG_Int(UNTAG_Int(REGB7)+UNTAG_Int(REGB4));
+        REGB7 = TAG_Bool(UNTAG_Int(REGB5)>UNTAG_Int(REGB4));
+        /* ./../lib/standard//string_search.nit:86 */
+        if (UNTAG_Bool(REGB7)) {
+          REGB5 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB5));
+          REGB0 = REGB5;
+        /* ./../lib/standard//string_search.nit:87 */
+        } else {
+          REGB4 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB4));
+          REGB0 = REGB4;
+        /* ./../lib/standard//string_search.nit:89 */
+        }
       }
+    } else {
+      /* ./../lib/standard//string_search.nit:77 */
+      goto label4;
     }
-    continue_6: while(0);
-  }
-  break_6: while(0);
-  variable[7] = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable[3] = variable[7];
-  goto return_label5;
-  return_label5: while(false);
-  tracehead = trace.prev;
-  return variable[3];
+  }
+  label4: while(0);
+  REGB0 = TAG_Int(1);
+  REGB0 = TAG_Int(-UNTAG_Int(REGB0));
+  REGB6 = REGB0;
+  /* ./../lib/standard//string_search.nit:93 */
+  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 variable[7];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[5] = variable[0];
-  variable[5] = ((string_search___BM_Pattern___search_index_in_t)CALL(variable[5],COLOR_string_search___Pattern___search_index_in))(variable[5],  variable[1] /*s*/,  variable[2] /*from*/) /*BM_Pattern::search_index_in*/;
-  variable[4] = variable[5];
-  variable[5] = TAG_Bool(UNTAG_Int( variable[4] /*to*/)<UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[3] =  NIT_NULL /*null*/;
-    goto return_label9;
-  } else { /*if*/
-    variable[5] = variable[0];
-    variable[5] = ATTR_string_search___BM_Pattern____length(variable[5]) /*BM_Pattern::_length*/;
-    variable[6] = NEW_Match_string_search___Match___init( variable[1] /*s*/,  variable[4] /*to*/, variable[5]); /*new Match*/
-    variable[5] = variable[6];
-    variable[3] = variable[5];
-    goto return_label9;
-  }
-  return_label9: while(false);
-  tracehead = trace.prev;
-  return variable[3];
+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;
+  REGB0 = CALL_string_search___Pattern___search_index_in(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:100 */
+  if (UNTAG_Bool(REGB1)) {
+    fra.me.REG[2] = NIT_NULL;
+    /* ./../lib/standard//string_search.nit:101 */
+    goto label1;
+  } else {
+    REGB1 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//string_search.nit:103 */
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_length");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 103);
+      nit_exit(1);
+    }
+    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 variable[6];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_BM_Pattern].i]) return;
-  variable[3] = variable[0];
-  ATTR_string_search___BM_Pattern____motif(variable[3]) /*BM_Pattern::_motif*/ =  variable[1] /*motif*/;
-  variable[3] = variable[0];
-  variable[4] = ((array___AbstractArray___length_t)CALL( variable[1] /*motif*/,COLOR_abstract_collection___Collection___length))( variable[1] /*motif*/) /*AbstractArray::length*/;
-  ATTR_string_search___BM_Pattern____length(variable[3]) /*BM_Pattern::_length*/ = variable[4];
-  variable[3] = variable[0];
-  variable[4] = variable[0];
-  variable[4] = ATTR_string_search___BM_Pattern____length(variable[4]) /*BM_Pattern::_length*/;
-  variable[5] = NEW_Array_array___Array___with_capacity(variable[4]); /*new Array[Int]*/
-  variable[4] = variable[5];
-  ATTR_string_search___BM_Pattern____gs(variable[3]) /*BM_Pattern::_gs*/ = variable[4];
-  variable[3] = variable[0];
-  variable[4] = NEW_ArrayMap_array___ArrayMap___init(); /*new ArrayMap[Char, Int]*/
-  ATTR_string_search___BM_Pattern____bc_table(variable[3]) /*BM_Pattern::_bc_table*/ = variable[4];
-  variable[3] = variable[0];
-  ((string_search___BM_Pattern___compute_gs_t)CALL(variable[3],COLOR_string_search___BM_Pattern___compute_gs))(variable[3]) /*BM_Pattern::compute_gs*/;
-  variable[3] = variable[0];
-  ((string_search___BM_Pattern___compute_bc_t)CALL(variable[3],COLOR_string_search___BM_Pattern___compute_bc))(variable[3]) /*BM_Pattern::compute_bc*/;
-  return_label10: while(false);
-  init_table[VAL2OBJ(variable[0])->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;
+  fra.me.REG[2] = fra.me.REG[0];
+  /* ./../lib/standard//string_search.nit:107 */
+  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];
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  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;
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[2])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:112 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 112);
+    nit_exit(1);
+  }
+  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];
+  fra.me.REG[1] = NEW_ArrayMap_array___ArrayMap___init();
+  /* ./../lib/standard//string_search.nit:113 */
+  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 variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_string_search___BM_Pattern____bc_table(variable[3]) /*BM_Pattern::_bc_table*/;
-  variable[3] = ((abstract_collection___Map___has_key_t)CALL(variable[3],COLOR_abstract_collection___Map___has_key))(variable[3],  variable[1] /*e*/) /*Map::has_key*/;
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_string_search___BM_Pattern____bc_table(variable[3]) /*BM_Pattern::_bc_table*/;
-    variable[3] = ((abstract_collection___Map_____bra_t)CALL(variable[3],COLOR_abstract_collection___Map_____bra))(variable[3],  variable[1] /*e*/) /*Map::[]*/;
-    variable[2] = variable[3];
-    goto return_label11;
-  } else { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_string_search___BM_Pattern____length(variable[3]) /*BM_Pattern::_length*/;
-    variable[2] = variable[3];
-    goto return_label11;
-  }
-  return_label11: while(false);
-  tracehead = trace.prev;
-  return variable[2];
-}
-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 variable[8];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[3] = variable[0];
-  variable[3] = ATTR_string_search___BM_Pattern____motif(variable[3]) /*BM_Pattern::_motif*/;
-  variable[2] = variable[3];
-  variable[4] = variable[0];
-  variable[4] = ATTR_string_search___BM_Pattern____length(variable[4]) /*BM_Pattern::_length*/;
-  variable[3] = variable[4];
-  variable[4] =  TAG_Int(0);
-  while (true) { /*while*/
-    variable[5] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable[5] = TAG_Bool(UNTAG_Int( variable[4] /*i*/)<UNTAG_Int(variable[5]));
-    if (!UNTAG_Bool(variable[5])) break; /* while*/
-    variable[5] = variable[0];
-    variable[5] = ATTR_string_search___BM_Pattern____bc_table(variable[5]) /*BM_Pattern::_bc_table*/;
-    variable[6] = ((string___String_____bra_t)CALL( variable[2] /*x*/,COLOR_abstract_collection___Map_____bra))( variable[2] /*x*/,  variable[4] /*i*/) /*String::[]*/;
-    variable[7] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( variable[4] /*i*/));
-    variable[7] = TAG_Int(UNTAG_Int(variable[7])-UNTAG_Int( TAG_Int(1)));
-    ((abstract_collection___Map_____braeq_t)CALL(variable[5],COLOR_abstract_collection___Map_____braeq))(variable[5], variable[6], variable[7]) /*Map::[]=*/;
-    variable[4] = TAG_Int(UNTAG_Int(variable[4])+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_13: while(0);
-  }
-  break_13: while(0);
-  return_label12: while(false);
-  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;
+  REGB1 = TAG_Bool(ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:126 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_bc_table");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 126);
+    nit_exit(1);
+  }
+  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)) {
+    REGB1 = TAG_Bool(ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//string_search.nit:127 */
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_bc_table");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 127);
+      nit_exit(1);
+    }
+    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 {
+    REGB1 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//string_search.nit:129 */
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_length");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 129);
+      nit_exit(1);
+    }
+    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 variable[15];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[3] = variable[0];
-  variable[3] = ATTR_string_search___BM_Pattern____motif(variable[3]) /*BM_Pattern::_motif*/;
-  variable[2] = variable[3];
-  variable[4] = variable[0];
-  variable[4] = ATTR_string_search___BM_Pattern____length(variable[4]) /*BM_Pattern::_length*/;
-  variable[3] = variable[4];
-  variable[5] = NEW_Array_array___Array___filled_with( variable[3] /*m*/,  variable[3] /*m*/); /*new Array[Int]*/
-  variable[4] = variable[5];
-  variable[5] =  TAG_Int(0);
-  variable[7] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(1)));
-  variable[6] = variable[7];
-  variable[8] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(2)));
-  variable[7] = variable[8];
-  while (true) { /*while*/
-    variable[8] = TAG_Bool(UNTAG_Int( variable[7] /*i*/)>=UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable[8])) break; /* while*/
-    variable[8] = TAG_Bool(UNTAG_Int( variable[7] /*i*/)>UNTAG_Int( variable[6] /*g*/));
-    variable[9] = variable[8];
-    if (UNTAG_Bool(variable[9])) { /* and */
-      variable[9] = TAG_Int(UNTAG_Int( variable[7] /*i*/)+UNTAG_Int( variable[3] /*m*/));
-      variable[9] = TAG_Int(UNTAG_Int(variable[9])-UNTAG_Int( TAG_Int(1)));
-      variable[9] = TAG_Int(UNTAG_Int(variable[9])-UNTAG_Int( variable[5] /*f*/));
-      variable[10] =  variable[4] /*suff*/;
-      variable[11] = variable[9];
-      variable[13] = TAG_Bool(UNTAG_Int( variable[11] /*index*/)>=UNTAG_Int( TAG_Int(0)));
-      variable[14] = variable[13];
-      if (UNTAG_Bool(variable[14])) { /* and */
-        variable[14] = variable[10];
-        variable[14] = ATTR_array___AbstractArray____length(variable[14]) /*AbstractArray::_length*/;
-        variable[14] = TAG_Bool(UNTAG_Int( variable[11] /*index*/)<UNTAG_Int(variable[14]));
+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;
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:141 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_motif");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 141);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = ATTR_string_search___BM_Pattern____motif(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:142 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 142);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//string_search.nit:144 */
+  while(1) {
+    REGB2 = TAG_Int(1);
+    REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//string_search.nit:144 */
+    if (UNTAG_Bool(REGB2)) {
+      REGB2 = TAG_Bool(ATTR_string_search___BM_Pattern____bc_table(fra.me.REG[0])!=NIT_NULL);
+      /* ./../lib/standard//string_search.nit:145 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_bc_table");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 145);
+        nit_exit(1);
       }
-      variable[13] = variable[14];
-      if (!UNTAG_Bool(variable[13])) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-      variable[13] = variable[10];
-      variable[13] = ATTR_array___Array____items(variable[13]) /*Array::_items*/;
-      variable[13] = UNBOX_NativeArray(variable[13])[UNTAG_Int( variable[11] /*index*/)];
-      variable[12] = variable[13];
-      goto return_label16;
-      return_label16: while(false);
-      variable[9] = variable[12];
-      variable[10] = TAG_Int(UNTAG_Int( variable[7] /*i*/)-UNTAG_Int( variable[6] /*g*/));
-      variable[9] = TAG_Bool(UNTAG_Int(variable[9])<UNTAG_Int(variable[10]));
+      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);
+      REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
+      REGB4 = TAG_Int(1);
+      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);
+      REGB4 = TAG_Int(1);
+      REGB4 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB4));
+      REGB1 = REGB4;
+    /* ./../lib/standard//string_search.nit:146 */
+    } else {
+      /* ./../lib/standard//string_search.nit:144 */
+      goto label1;
     }
-    variable[8] = variable[9];
-    if (UNTAG_Bool(variable[8])) { /*if*/
-      variable[8] = TAG_Int(UNTAG_Int( variable[7] /*i*/)+UNTAG_Int( variable[3] /*m*/));
-      variable[8] = TAG_Int(UNTAG_Int(variable[8])-UNTAG_Int( TAG_Int(1)));
-      variable[8] = TAG_Int(UNTAG_Int(variable[8])-UNTAG_Int( variable[5] /*f*/));
-      variable[9] =  variable[4] /*suff*/;
-      variable[10] = variable[8];
-      variable[12] = TAG_Bool(UNTAG_Int( variable[10] /*index*/)>=UNTAG_Int( TAG_Int(0)));
-      variable[13] = variable[12];
-      if (UNTAG_Bool(variable[13])) { /* and */
-        variable[13] = variable[9];
-        variable[13] = ATTR_array___AbstractArray____length(variable[13]) /*AbstractArray::_length*/;
-        variable[13] = TAG_Bool(UNTAG_Int( variable[10] /*index*/)<UNTAG_Int(variable[13]));
-      }
-      variable[12] = variable[13];
-      if (!UNTAG_Bool(variable[12])) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-      variable[12] = variable[9];
-      variable[12] = ATTR_array___Array____items(variable[12]) /*Array::_items*/;
-      variable[12] = UNBOX_NativeArray(variable[12])[UNTAG_Int( variable[10] /*index*/)];
-      variable[11] = variable[12];
-      goto return_label17;
-      return_label17: while(false);
-      variable[8] = variable[11];
-      ((array___Array_____braeq_t)CALL( variable[4] /*suff*/,COLOR_abstract_collection___Map_____braeq))( variable[4] /*suff*/,  variable[7] /*i*/, variable[8]) /*Array::[]=*/;
-    } else { /*if*/
-      variable[8] = TAG_Bool(UNTAG_Int( variable[7] /*i*/)<UNTAG_Int( variable[6] /*g*/));
-      if (UNTAG_Bool(variable[8])) { /*if*/
-        variable[6] =  variable[7] /*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;
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:152 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_motif");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 152);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = ATTR_string_search___BM_Pattern____motif(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:153 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 153);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+  fra.me.REG[0] = NEW_Array_array___Array___filled_with(REGB0, REGB0);
+  REGB1 = TAG_Int(0);
+  REGB2 = TAG_Int(1);
+  REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+  REGB3 = TAG_Int(2);
+  REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB3));
+  /* ./../lib/standard//string_search.nit:159 */
+  while(1) {
+    REGB4 = TAG_Int(0);
+    REGB4 = TAG_Bool(UNTAG_Int(REGB3)>=UNTAG_Int(REGB4));
+    /* ./../lib/standard//string_search.nit:159 */
+    if (UNTAG_Bool(REGB4)) {
+      REGB4 = TAG_Bool(UNTAG_Int(REGB3)>UNTAG_Int(REGB2));
+      /* ./../lib/standard//string_search.nit:160 */
+      if (UNTAG_Bool(REGB4)) {
+        REGB4 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB0));
+        REGB5 = TAG_Int(1);
+        REGB5 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB5));
+        REGB5 = TAG_Int(UNTAG_Int(REGB5)-UNTAG_Int(REGB1));
+        fra.me.REG[2] = fra.me.REG[0];
+        REGB4 = TAG_Int(0);
+        REGB4 = TAG_Bool(UNTAG_Int(REGB5)>=UNTAG_Int(REGB4));
+        /* ./../lib/standard//collection//array.nit:233 */
+        if (UNTAG_Bool(REGB4)) {
+          REGB4 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+          if (UNTAG_Bool(REGB4)) {
+          } else {
+            fprintf(stderr, "Uninitialized attribute %s", "_length");
+            fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+            nit_exit(1);
+          }
+          REGB4 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+          REGB4 = TAG_Bool(UNTAG_Int(REGB5)<UNTAG_Int(REGB4));
+        /* ./../lib/standard//collection//array.nit:233 */
+        } else {
+          REGB6 = TAG_Bool(false);
+          REGB4 = REGB6;
+        }
+        if (UNTAG_Bool(REGB4)) {
+        } else {
+          fprintf(stderr, "Assert %s  failed", "'index'");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+          nit_exit(1);
+        }
+        fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+        REGB4 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        /* ./../lib/standard//collection//array.nit:234 */
+        if (UNTAG_Bool(REGB4)) {
+          fprintf(stderr, "Reciever is null");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+          nit_exit(1);
+        }
+        fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB5)];
+        /* ./../lib/standard//collection//array.nit:234 */
+        goto label1;
+        label1: while(0);
+        REGB5 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB2));
+        REGB4 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        /* ./../lib/standard//string_search.nit:160 */
+        if (UNTAG_Bool(REGB4)) {
+          fprintf(stderr, "Reciever is null");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 160);
+          nit_exit(1);
+        }
+        REGB5 = TAG_Bool(UNTAG_Int(fra.me.REG[2])<UNTAG_Int(REGB5));
+      /* ./../lib/standard//string_search.nit:160 */
+      } else {
+        REGB4 = TAG_Bool(false);
+        REGB5 = REGB4;
       }
-      variable[5] =  variable[7] /*i*/ /*f=*/;
-      while (true) { /*while*/
-        variable[8] = TAG_Bool(UNTAG_Int( variable[6] /*g*/)>=UNTAG_Int( TAG_Int(0)));
-        variable[9] = variable[8];
-        if (UNTAG_Bool(variable[9])) { /* and */
-          variable[9] = ((string___String_____bra_t)CALL( variable[2] /*x*/,COLOR_abstract_collection___Map_____bra))( variable[2] /*x*/,  variable[6] /*g*/) /*String::[]*/;
-          variable[10] = TAG_Int(UNTAG_Int( variable[6] /*g*/)+UNTAG_Int( variable[3] /*m*/));
-          variable[10] = TAG_Int(UNTAG_Int(variable[10])-UNTAG_Int( TAG_Int(1)));
-          variable[10] = TAG_Int(UNTAG_Int(variable[10])-UNTAG_Int( variable[5] /*f*/));
-          variable[10] = ((string___String_____bra_t)CALL( variable[2] /*x*/,COLOR_abstract_collection___Map_____bra))( variable[2] /*x*/, variable[10]) /*String::[]*/;
-          variable[9] = TAG_Bool((variable[9])==(variable[10]));
+      if (UNTAG_Bool(REGB5)) {
+        REGB5 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB0));
+        REGB4 = TAG_Int(1);
+        REGB4 = TAG_Int(UNTAG_Int(REGB5)-UNTAG_Int(REGB4));
+        REGB4 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB1));
+        fra.me.REG[2] = fra.me.REG[0];
+        REGB5 = TAG_Int(0);
+        REGB5 = TAG_Bool(UNTAG_Int(REGB4)>=UNTAG_Int(REGB5));
+        /* ./../lib/standard//collection//array.nit:233 */
+        if (UNTAG_Bool(REGB5)) {
+          REGB5 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+          if (UNTAG_Bool(REGB5)) {
+          } else {
+            fprintf(stderr, "Uninitialized attribute %s", "_length");
+            fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+            nit_exit(1);
+          }
+          REGB5 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+          REGB5 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB5));
+        /* ./../lib/standard//collection//array.nit:233 */
+        } else {
+          REGB6 = TAG_Bool(false);
+          REGB5 = REGB6;
+        }
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          fprintf(stderr, "Assert %s  failed", "'index'");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+          nit_exit(1);
+        }
+        fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+        REGB5 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        /* ./../lib/standard//collection//array.nit:234 */
+        if (UNTAG_Bool(REGB5)) {
+          fprintf(stderr, "Reciever is null");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+          nit_exit(1);
         }
-        variable[8] = variable[9];
-        if (!UNTAG_Bool(variable[8])) break; /* while*/
-        variable[6] = TAG_Int(UNTAG_Int(variable[6])-UNTAG_Int( TAG_Int(1))) /*g*/;
-        continue_18: while(0);
+        fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB4)];
+        /* ./../lib/standard//collection//array.nit:234 */
+        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 {
+        REGB4 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB2));
+        /* ./../lib/standard//string_search.nit:163 */
+        if (UNTAG_Bool(REGB4)) {
+          REGB2 = REGB3;
+        }
+        REGB1 = REGB3;
+        /* ./../lib/standard//string_search.nit:165 */
+        while(1) {
+          REGB4 = TAG_Int(0);
+          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);
+            REGB5 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB0));
+            REGB6 = TAG_Int(1);
+            REGB6 = TAG_Int(UNTAG_Int(REGB5)-UNTAG_Int(REGB6));
+            REGB6 = TAG_Int(UNTAG_Int(REGB6)-UNTAG_Int(REGB1));
+            REGB6 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB6);
+            REGB5 = TAG_Bool(IS_EQUAL_OO(REGB4,REGB6));
+            /* ./../lib/standard//string_search.nit:165 */
+            if (UNTAG_Bool(REGB5)) {
+            } else {
+              REGB6 = TAG_Bool((REGB4)==(REGB6));
+              REGB5 = REGB6;
+            /* ./../lib/standard//string_search.nit:165 */
+            }
+          } else {
+            REGB6 = TAG_Bool(false);
+            REGB5 = REGB6;
+          }
+          if (UNTAG_Bool(REGB5)) {
+            REGB5 = TAG_Int(1);
+            REGB5 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB5));
+            REGB2 = REGB5;
+          /* ./../lib/standard//string_search.nit:165 */
+          } else {
+            goto label3;
+          }
+        }
+        label3: while(0);
+        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);
-      variable[8] = TAG_Int(UNTAG_Int( variable[5] /*f*/)-UNTAG_Int( variable[6] /*g*/));
-      ((array___Array_____braeq_t)CALL( variable[4] /*suff*/,COLOR_abstract_collection___Map_____braeq))( variable[4] /*suff*/,  variable[7] /*i*/, variable[8]) /*Array::[]=*/;
+      REGB5 = TAG_Int(1);
+      REGB5 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB5));
+      REGB3 = REGB5;
+    /* ./../lib/standard//string_search.nit:168 */
+    } else {
+      /* ./../lib/standard//string_search.nit:159 */
+      goto label4;
     }
-    variable[7] = TAG_Int(UNTAG_Int(variable[7])-UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_15: while(0);
-  }
-  break_15: while(0);
-  variable[1] =  variable[4] /*suff*/;
-  goto return_label14;
-  return_label14: while(false);
-  tracehead = trace.prev;
-  return variable[1];
+  }
+  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 variable[14];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[3] = variable[0];
-  variable[3] = ATTR_string_search___BM_Pattern____motif(variable[3]) /*BM_Pattern::_motif*/;
-  variable[2] = variable[3];
-  variable[4] = variable[0];
-  variable[4] = ATTR_string_search___BM_Pattern____length(variable[4]) /*BM_Pattern::_length*/;
-  variable[3] = variable[4];
-  variable[5] = variable[0];
-  variable[5] = ((string_search___BM_Pattern___suffixes_t)CALL(variable[5],COLOR_string_search___BM_Pattern___suffixes))(variable[5]) /*BM_Pattern::suffixes*/;
-  variable[4] = variable[5];
-  variable[5] =  TAG_Int(0);
-  while (true) { /*while*/
-    variable[6] = TAG_Bool(UNTAG_Int( variable[5] /*i*/)<UNTAG_Int( variable[3] /*m*/));
-    if (!UNTAG_Bool(variable[6])) break; /* while*/
-    variable[6] = variable[0];
-    variable[6] = ATTR_string_search___BM_Pattern____gs(variable[6]) /*BM_Pattern::_gs*/;
-    ((array___Array_____braeq_t)CALL(variable[6],COLOR_abstract_collection___Map_____braeq))(variable[6],  variable[5] /*i*/,  variable[3] /*m*/) /*Array::[]=*/;
-    variable[5] = TAG_Int(UNTAG_Int(variable[5])+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_20: while(0);
-  }
-  break_20: while(0);
-  variable[6] =  TAG_Int(0);
-  variable[7] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(1)));
-  variable[5] = variable[7] /*i=*/;
-  while (true) { /*while*/
-    variable[7] = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-    variable[7] = TAG_Bool(UNTAG_Int( variable[5] /*i*/)>=UNTAG_Int(variable[7]));
-    if (!UNTAG_Bool(variable[7])) break; /* while*/
-    variable[7] = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-    variable[7] = TAG_Bool(( variable[5] /*i*/)==(variable[7]));
-    variable[8] = variable[7];
-    if (!UNTAG_Bool(variable[8])) { /* or */
-      variable[8] =  variable[4] /*suff*/;
-      variable[9] =  variable[5] /*i*/;
-      variable[11] = TAG_Bool(UNTAG_Int( variable[9] /*index*/)>=UNTAG_Int( TAG_Int(0)));
-      variable[12] = variable[11];
-      if (UNTAG_Bool(variable[12])) { /* and */
-        variable[12] = variable[8];
-        variable[12] = ATTR_array___AbstractArray____length(variable[12]) /*AbstractArray::_length*/;
-        variable[12] = TAG_Bool(UNTAG_Int( variable[9] /*index*/)<UNTAG_Int(variable[12]));
+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;
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____motif(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:175 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_motif");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 175);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = ATTR_string_search___BM_Pattern____motif(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_string_search___BM_Pattern____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:176 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 176);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_string_search___BM_Pattern____length(fra.me.REG[0]);
+  fra.me.REG[1] = CALL_string_search___BM_Pattern___suffixes(fra.me.REG[0])(fra.me.REG[0]);
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//string_search.nit:179 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB0));
+    /* ./../lib/standard//string_search.nit:179 */
+    if (UNTAG_Bool(REGB2)) {
+      REGB2 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+      /* ./../lib/standard//string_search.nit:180 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_gs");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 180);
+        nit_exit(1);
       }
-      variable[11] = variable[12];
-      if (!UNTAG_Bool(variable[11])) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-      variable[11] = variable[8];
-      variable[11] = ATTR_array___Array____items(variable[11]) /*Array::_items*/;
-      variable[11] = UNBOX_NativeArray(variable[11])[UNTAG_Int( variable[9] /*index*/)];
-      variable[10] = variable[11];
-      goto return_label22;
-      return_label22: while(false);
-      variable[8] = variable[10];
-      variable[9] = TAG_Int(UNTAG_Int( variable[5] /*i*/)+UNTAG_Int( TAG_Int(1)));
-      variable[8] = TAG_Bool((variable[8])==(variable[9]));
+      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);
+      REGB2 = TAG_Int(1);
+      REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
+      REGB1 = REGB2;
+    /* ./../lib/standard//string_search.nit:181 */
+    } else {
+      /* ./../lib/standard//string_search.nit:179 */
+      goto label1;
     }
-    variable[7] = variable[8];
-    if (UNTAG_Bool(variable[7])) { /*if*/
-      while (true) { /*while*/
-        variable[7] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(1)));
-        variable[7] = TAG_Int(UNTAG_Int(variable[7])-UNTAG_Int( variable[5] /*i*/));
-        variable[7] = TAG_Bool(UNTAG_Int( variable[6] /*j*/)<UNTAG_Int(variable[7]));
-        if (!UNTAG_Bool(variable[7])) break; /* while*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_string_search___BM_Pattern____gs(variable[7]) /*BM_Pattern::_gs*/;
-        variable[8] = variable[7];
-        variable[9] =  variable[6] /*j*/;
-        variable[11] = TAG_Bool(UNTAG_Int( variable[9] /*index*/)>=UNTAG_Int( TAG_Int(0)));
-        variable[12] = variable[11];
-        if (UNTAG_Bool(variable[12])) { /* and */
-          variable[12] = variable[8];
-          variable[12] = ATTR_array___AbstractArray____length(variable[12]) /*AbstractArray::_length*/;
-          variable[12] = TAG_Bool(UNTAG_Int( variable[9] /*index*/)<UNTAG_Int(variable[12]));
+  }
+  label1: while(0);
+  REGB2 = TAG_Int(0);
+  REGB3 = TAG_Int(1);
+  REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB3));
+  REGB1 = REGB3;
+  /* ./../lib/standard//string_search.nit:185 */
+  while(1) {
+    REGB3 = TAG_Int(1);
+    REGB3 = TAG_Int(-UNTAG_Int(REGB3));
+    REGB3 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB3));
+    /* ./../lib/standard//string_search.nit:185 */
+    if (UNTAG_Bool(REGB3)) {
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(-UNTAG_Int(REGB3));
+      REGB4 = TAG_Bool(IS_EQUAL_OO(REGB1,REGB3));
+      /* ./../lib/standard//string_search.nit:186 */
+      if (UNTAG_Bool(REGB4)) {
+      } else {
+        REGB3 = TAG_Bool((REGB1)==(REGB3));
+        REGB4 = REGB3;
+      /* ./../lib/standard//string_search.nit:186 */
+      }
+      if (UNTAG_Bool(REGB4)) {
+        REGB4 = TAG_Bool(true);
+      } else {
+        fra.me.REG[2] = fra.me.REG[1];
+        REGB3 = REGB1;
+        REGB5 = TAG_Int(0);
+        REGB5 = TAG_Bool(UNTAG_Int(REGB3)>=UNTAG_Int(REGB5));
+        /* ./../lib/standard//collection//array.nit:233 */
+        if (UNTAG_Bool(REGB5)) {
+          REGB5 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+          if (UNTAG_Bool(REGB5)) {
+          } else {
+            fprintf(stderr, "Uninitialized attribute %s", "_length");
+            fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+            nit_exit(1);
+          }
+          REGB5 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+          REGB5 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB5));
+        /* ./../lib/standard//collection//array.nit:233 */
+        } else {
+          REGB6 = TAG_Bool(false);
+          REGB5 = REGB6;
         }
-        variable[11] = variable[12];
-        if (!UNTAG_Bool(variable[11])) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-        variable[11] = variable[8];
-        variable[11] = ATTR_array___Array____items(variable[11]) /*Array::_items*/;
-        variable[11] = UNBOX_NativeArray(variable[11])[UNTAG_Int( variable[9] /*index*/)];
-        variable[10] = variable[11];
-        goto return_label24;
-        return_label24: while(false);
-        variable[7] = variable[10];
-        variable[7] = TAG_Bool((variable[7])==( variable[3] /*m*/));
-        if (UNTAG_Bool(variable[7])) { /*if*/
-          variable[7] = variable[0];
-          variable[7] = ATTR_string_search___BM_Pattern____gs(variable[7]) /*BM_Pattern::_gs*/;
-          variable[8] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(1)));
-          variable[8] = TAG_Int(UNTAG_Int(variable[8])-UNTAG_Int( variable[5] /*i*/));
-          ((array___Array_____braeq_t)CALL(variable[7],COLOR_abstract_collection___Map_____braeq))(variable[7],  variable[6] /*j*/, variable[8]) /*Array::[]=*/;
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          fprintf(stderr, "Assert %s  failed", "'index'");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+          nit_exit(1);
         }
-        variable[6] = TAG_Int(UNTAG_Int(variable[6])+UNTAG_Int( TAG_Int(1))) /*j*/;
-        continue_23: while(0);
+        fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+        REGB5 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        /* ./../lib/standard//collection//array.nit:234 */
+        if (UNTAG_Bool(REGB5)) {
+          fprintf(stderr, "Reciever is null");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+          nit_exit(1);
+        }
+        fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB3)];
+        /* ./../lib/standard//collection//array.nit:234 */
+        goto label2;
+        label2: while(0);
+        REGB3 = TAG_Int(1);
+        REGB3 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
+        REGB5 = TAG_Bool(IS_EQUAL_ON(REGB3,fra.me.REG[2]));
+        /* ./../lib/standard//string_search.nit:186 */
+        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 {
+            REGB3 = TAG_Bool((fra.me.REG[2])==(REGB3));
+            REGB5 = REGB3;
+          /* ./../lib/standard//string_search.nit:186 */
+          }
+        }
+        REGB4 = REGB5;
+      }
+      if (UNTAG_Bool(REGB4)) {
+        /* ./../lib/standard//string_search.nit:187 */
+        while(1) {
+          REGB4 = TAG_Int(1);
+          REGB4 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB4));
+          REGB4 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB1));
+          REGB4 = TAG_Bool(UNTAG_Int(REGB2)<UNTAG_Int(REGB4));
+          /* ./../lib/standard//string_search.nit:187 */
+          if (UNTAG_Bool(REGB4)) {
+            REGB4 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+            /* ./../lib/standard//string_search.nit:188 */
+            if (UNTAG_Bool(REGB4)) {
+            } else {
+              fprintf(stderr, "Uninitialized attribute %s", "_gs");
+              fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 188);
+              nit_exit(1);
+            }
+            fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+            REGB4 = REGB2;
+            REGB5 = TAG_Int(0);
+            REGB5 = TAG_Bool(UNTAG_Int(REGB4)>=UNTAG_Int(REGB5));
+            /* ./../lib/standard//collection//array.nit:233 */
+            if (UNTAG_Bool(REGB5)) {
+              REGB5 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+              if (UNTAG_Bool(REGB5)) {
+              } else {
+               fprintf(stderr, "Uninitialized attribute %s", "_length");
+               fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+               nit_exit(1);
+              }
+              REGB5 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+              REGB5 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB5));
+            /* ./../lib/standard//collection//array.nit:233 */
+            } else {
+              REGB3 = TAG_Bool(false);
+              REGB5 = REGB3;
+            }
+            if (UNTAG_Bool(REGB5)) {
+            } else {
+              fprintf(stderr, "Assert %s  failed", "'index'");
+              fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+              nit_exit(1);
+            }
+            fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+            REGB5 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+            /* ./../lib/standard//collection//array.nit:234 */
+            if (UNTAG_Bool(REGB5)) {
+              fprintf(stderr, "Reciever is null");
+              fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+              nit_exit(1);
+            }
+            fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB4)];
+            /* ./../lib/standard//collection//array.nit:234 */
+            goto label3;
+            label3: while(0);
+            REGB4 = TAG_Bool(IS_EQUAL_ON(REGB0,fra.me.REG[2]));
+            /* ./../lib/standard//string_search.nit:188 */
+            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 {
+               REGB5 = TAG_Bool((fra.me.REG[2])==(REGB0));
+               REGB4 = REGB5;
+              /* ./../lib/standard//string_search.nit:188 */
+              }
+            }
+            if (UNTAG_Bool(REGB4)) {
+              REGB4 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+              if (UNTAG_Bool(REGB4)) {
+              } else {
+               fprintf(stderr, "Uninitialized attribute %s", "_gs");
+               fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 188);
+               nit_exit(1);
+              }
+              fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+              REGB4 = TAG_Int(1);
+              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);
+            }
+            REGB4 = TAG_Int(1);
+            REGB4 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB4));
+            REGB2 = REGB4;
+          /* ./../lib/standard//string_search.nit:189 */
+          } else {
+            /* ./../lib/standard//string_search.nit:187 */
+            goto label4;
+          }
+        }
+        label4: while(0);
       }
-      break_23: while(0);
+      REGB4 = TAG_Int(1);
+      REGB4 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB4));
+      REGB1 = REGB4;
+    /* ./../lib/standard//string_search.nit:192 */
+    } else {
+      /* ./../lib/standard//string_search.nit:185 */
+      goto label5;
     }
-    variable[5] = TAG_Int(UNTAG_Int(variable[5])-UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_21: while(0);
-  }
-  break_21: while(0);
-  variable[5] =  TAG_Int(0) /*i=*/;
-  while (true) { /*while*/
-    variable[7] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable[7] = TAG_Bool(UNTAG_Int( variable[5] /*i*/)<UNTAG_Int(variable[7]));
-    if (!UNTAG_Bool(variable[7])) break; /* while*/
-    variable[7] = variable[0];
-    variable[7] = ATTR_string_search___BM_Pattern____gs(variable[7]) /*BM_Pattern::_gs*/;
-    variable[8] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable[9] =  variable[4] /*suff*/;
-    variable[10] =  variable[5] /*i*/;
-    variable[12] = TAG_Bool(UNTAG_Int( variable[10] /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable[13] = variable[12];
-    if (UNTAG_Bool(variable[13])) { /* and */
-      variable[13] = variable[9];
-      variable[13] = ATTR_array___AbstractArray____length(variable[13]) /*AbstractArray::_length*/;
-      variable[13] = TAG_Bool(UNTAG_Int( variable[10] /*index*/)<UNTAG_Int(variable[13]));
+  }
+  label5: while(0);
+  REGB2 = TAG_Int(0);
+  REGB1 = REGB2;
+  /* ./../lib/standard//string_search.nit:195 */
+  while(1) {
+    REGB2 = TAG_Int(1);
+    REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//string_search.nit:195 */
+    if (UNTAG_Bool(REGB2)) {
+      REGB2 = TAG_Bool(ATTR_string_search___BM_Pattern____gs(fra.me.REG[0])!=NIT_NULL);
+      /* ./../lib/standard//string_search.nit:196 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_gs");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 196);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ATTR_string_search___BM_Pattern____gs(fra.me.REG[0]);
+      REGB2 = TAG_Int(1);
+      REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+      fra.me.REG[3] = fra.me.REG[1];
+      REGB4 = REGB1;
+      REGB5 = TAG_Int(0);
+      REGB5 = TAG_Bool(UNTAG_Int(REGB4)>=UNTAG_Int(REGB5));
+      /* ./../lib/standard//collection//array.nit:233 */
+      if (UNTAG_Bool(REGB5)) {
+        REGB5 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
+        if (UNTAG_Bool(REGB5)) {
+        } else {
+          fprintf(stderr, "Uninitialized attribute %s", "_length");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+          nit_exit(1);
+        }
+        REGB5 = ATTR_array___AbstractArrayRead____length(fra.me.REG[3]);
+        REGB5 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB5));
+      /* ./../lib/standard//collection//array.nit:233 */
+      } else {
+        REGB3 = TAG_Bool(false);
+        REGB5 = REGB3;
+      }
+      if (UNTAG_Bool(REGB5)) {
+      } else {
+        fprintf(stderr, "Assert %s  failed", "'index'");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+        nit_exit(1);
+      }
+      fra.me.REG[3] = ATTR_array___Array____items(fra.me.REG[3]);
+      REGB5 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:234 */
+      if (UNTAG_Bool(REGB5)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+        nit_exit(1);
+      }
+      fra.me.REG[3] = ((Nit_NativeArray)fra.me.REG[3])->val[UNTAG_Int(REGB4)];
+      /* ./../lib/standard//collection//array.nit:234 */
+      goto label6;
+      label6: while(0);
+      REGB2 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(fra.me.REG[3]));
+      REGB4 = TAG_Int(1);
+      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);
+      REGB4 = TAG_Int(1);
+      REGB4 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB4));
+      REGB1 = REGB4;
+    /* ./../lib/standard//string_search.nit:197 */
+    } else {
+      /* ./../lib/standard//string_search.nit:195 */
+      goto label7;
     }
-    variable[12] = variable[13];
-    if (!UNTAG_Bool(variable[12])) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_string_search, 229); nit_exit(1);}
-    variable[12] = variable[9];
-    variable[12] = ATTR_array___Array____items(variable[12]) /*Array::_items*/;
-    variable[12] = UNBOX_NativeArray(variable[12])[UNTAG_Int( variable[10] /*index*/)];
-    variable[11] = variable[12];
-    goto return_label26;
-    return_label26: while(false);
-    variable[9] = variable[11];
-    variable[8] = TAG_Int(UNTAG_Int(variable[8])-UNTAG_Int(variable[9]));
-    variable[9] = TAG_Int(UNTAG_Int( variable[3] /*m*/)-UNTAG_Int( TAG_Int(1)));
-    variable[9] = TAG_Int(UNTAG_Int(variable[9])-UNTAG_Int( variable[5] /*i*/));
-    ((array___Array_____braeq_t)CALL(variable[7],COLOR_abstract_collection___Map_____braeq))(variable[7], variable[8], variable[9]) /*Array::[]=*/;
-    variable[5] = TAG_Int(UNTAG_Int(variable[5])+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_25: while(0);
-  }
-  break_25: while(0);
-  return_label19: while(false);
-  tracehead = trace.prev;
+  }
+  label7: while(0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-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 variable[5];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[2] = variable[0];
-  variable[2] = ATTR_string_search___Match____string(variable[2]) /*Match::_string*/;
-  variable[3] = variable[0];
-  variable[3] = ATTR_string_search___Match____from(variable[3]) /*Match::_from*/;
-  variable[4] = variable[0];
-  variable[4] = ATTR_string_search___Match____length(variable[4]) /*Match::_length*/;
-  variable[2] = ((string___String___substring_t)CALL(variable[2],COLOR_string___String___substring))(variable[2], variable[3], variable[4]) /*String::substring*/;
-  variable[1] = variable[2];
-  goto return_label27;
-  return_label27: while(false);
-  tracehead = trace.prev;
-  return variable[1];
+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;
+  REGB0 = TAG_Bool(ATTR_string_search___Match____string(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:218 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_string");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 218);
+    nit_exit(1);
+  }
+  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 {
+    fprintf(stderr, "Uninitialized attribute %s", "_from");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 218);
+    nit_exit(1);
+  }
+  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 {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 218);
+    nit_exit(1);
+  }
+  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];
 }
-val_t string_search___Match___string(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 204, LOCATE_string_search___Match___string};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  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;
+  REGB0 = TAG_Bool(ATTR_string_search___Match____string(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:204 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_string");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 204);
+    nit_exit(1);
+  }
+  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};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  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;
+  REGB0 = TAG_Bool(ATTR_string_search___Match____from(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:207 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_from");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 207);
+    nit_exit(1);
+  }
+  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};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  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;
+  REGB0 = TAG_Bool(ATTR_string_search___Match____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:210 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 210);
+    nit_exit(1);
+  }
+  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 variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[2] = variable[0];
-  variable[2] = ATTR_string_search___Match____from(variable[2]) /*Match::_from*/;
-  variable[3] = variable[0];
-  variable[3] = ATTR_string_search___Match____length(variable[3]) /*Match::_length*/;
-  variable[2] = TAG_Int(UNTAG_Int(variable[2])+UNTAG_Int(variable[3]));
-  variable[1] = variable[2];
-  goto return_label28;
-  return_label28: while(false);
-  tracehead = trace.prev;
-  return variable[1];
+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;
+  REGB0 = TAG_Bool(ATTR_string_search___Match____from(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//string_search.nit:215 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_from");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 215);
+    nit_exit(1);
+  }
+  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 {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 215);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_string_search___Match____length(fra.me.REG[0]);
+  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;
 }
-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 variable[7];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[3] =  param2;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_Match].i]) return;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*s*/ ==  NIT_NULL /*null*/) || (( variable[1] /*s*/ != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL( variable[1] /*s*/,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*s*/, NIT_NULL /*null*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL( variable[1] /*s*/,COLOR_kernel___Object_____eqeq))( variable[1] /*s*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[5])) { 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);}
-  variable[5] = TAG_Bool(UNTAG_Int( variable[3] /*len*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable[5])) { 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);}
-  variable[5] = TAG_Bool(UNTAG_Int( variable[2] /*f*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable[5])) { 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);}
-  variable[5] = TAG_Int(UNTAG_Int( variable[2] /*f*/)+UNTAG_Int( variable[3] /*len*/));
-  variable[6] = ((array___AbstractArray___length_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Collection___length))( variable[1] /*s*/) /*AbstractArray::length*/;
-  variable[5] = TAG_Bool(UNTAG_Int(variable[5])<=UNTAG_Int(variable[6]));
-  if (!UNTAG_Bool(variable[5])) { 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);}
-  variable[5] = variable[0];
-  ATTR_string_search___Match____string(variable[5]) /*Match::_string*/ =  variable[1] /*s*/;
-  variable[5] = variable[0];
-  ATTR_string_search___Match____from(variable[5]) /*Match::_from*/ =  variable[2] /*f*/;
-  variable[5] = variable[0];
-  ATTR_string_search___Match____length(variable[5]) /*Match::_length*/ =  variable[3] /*len*/;
-  return_label29: while(false);
-  init_table[VAL2OBJ(variable[0])->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;
+  REGB2 = TAG_Int(0);
+  REGB2 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB2));
+  /* ./../lib/standard//string_search.nit:223 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'positive_length'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 223);
+    nit_exit(1);
+  }
+  REGB2 = TAG_Int(0);
+  REGB2 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB2));
+  /* ./../lib/standard//string_search.nit:224 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'valid_from'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 224);
+    nit_exit(1);
+  }
+  REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+  REGB3 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB3)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB3 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  REGB3 = TAG_Bool(UNTAG_Int(REGB2)<=UNTAG_Int(REGB3));
+  /* ./../lib/standard//string_search.nit:225 */
+  if (UNTAG_Bool(REGB3)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'valid_after'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 225);
+    nit_exit(1);
+  }
+  /* ./../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 variable[7];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[5] = ((array___AbstractArray___length_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Collection___length))( variable[1] /*s*/) /*AbstractArray::length*/;
-  variable[4] = variable[5];
-  while (true) { /*while*/
-    variable[5] = TAG_Bool(UNTAG_Int( variable[2] /*from*/)<UNTAG_Int( variable[4] /*stop*/));
-    if (!UNTAG_Bool(variable[5])) break; /* while*/
-    variable[5] = ((string___String_____bra_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Map_____bra))( variable[1] /*s*/,  variable[2] /*from*/) /*String::[]*/;
-    variable[6] = variable[0];
-    variable[5] = TAG_Bool((variable[5])==(variable[6]));
-    if (UNTAG_Bool(variable[5])) { /*if*/
-      variable[3] =  variable[2] /*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;
+  REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:237 */
+  while(1) {
+    REGB3 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//string_search.nit:237 */
+    if (UNTAG_Bool(REGB3)) {
+      REGB3 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB1);
+      REGB4 = TAG_Bool(IS_EQUAL_OO(REGB3,REGB0));
+      /* ./../lib/standard//string_search.nit:238 */
+      if (UNTAG_Bool(REGB4)) {
+      } else {
+        REGB3 = TAG_Bool((REGB3)==(REGB0));
+        REGB4 = REGB3;
+      /* ./../lib/standard//string_search.nit:238 */
+      }
+      if (UNTAG_Bool(REGB4)) {
+        REGB4 = REGB1;
+        goto label1;
+      }
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
+      REGB1 = REGB3;
+    /* ./../lib/standard//string_search.nit:239 */
+    } else {
+      /* ./../lib/standard//string_search.nit:237 */
+      goto label2;
     }
-    variable[2] = TAG_Int(UNTAG_Int(variable[2])+UNTAG_Int( TAG_Int(1))) /*from*/;
-    continue_31: while(0);
-  }
-  break_31: while(0);
-  variable[5] = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable[3] = variable[5];
-  goto return_label30;
-  return_label30: while(false);
-  tracehead = trace.prev;
-  return variable[3];
+  }
+  label2: while(0);
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(-UNTAG_Int(REGB1));
+  REGB4 = REGB1;
+  /* ./../lib/standard//string_search.nit:241 */
+  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 variable[6];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[5] = variable[0];
-  variable[5] = ((string_search___Char___search_index_in_t)CALL(variable[5],COLOR_string_search___Pattern___search_index_in))(variable[5],  variable[1] /*s*/,  variable[2] /*from*/) /*Char::search_index_in*/;
-  variable[4] = variable[5];
-  variable[5] = TAG_Bool(UNTAG_Int( variable[4] /*pos*/)<UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[3] =  NIT_NULL /*null*/;
-    goto return_label32;
-  } else { /*if*/
-    variable[5] = NEW_Match_string_search___Match___init( variable[1] /*s*/,  variable[4] /*pos*/,  TAG_Int(1)); /*new Match*/
-    variable[3] = variable[5];
-    goto return_label32;
-  }
-  return_label32: while(false);
-  tracehead = trace.prev;
-  return variable[3];
+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;
+  REGB1 = CALL_string_search___Pattern___search_index_in(REGB0)(REGB0, fra.me.REG[0], REGB1);
+  REGB0 = TAG_Int(0);
+  REGB0 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB0));
+  /* ./../lib/standard//string_search.nit:247 */
+  if (UNTAG_Bool(REGB0)) {
+    fra.me.REG[1] = NIT_NULL;
+    /* ./../lib/standard//string_search.nit:248 */
+    goto label1;
+  } else {
+    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];
+    /* ./../lib/standard//string_search.nit:250 */
+    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 variable[9];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[4] = TAG_Bool(UNTAG_Int( variable[2] /*from*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable[4])) { 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);}
-  variable[5] = ((array___AbstractArray___length_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Collection___length))( variable[1] /*s*/) /*AbstractArray::length*/;
-  variable[6] = variable[0];
-  variable[6] = ((array___AbstractArray___length_t)CALL(variable[6],COLOR_abstract_collection___Collection___length))(variable[6]) /*AbstractArray::length*/;
-  variable[5] = TAG_Int(UNTAG_Int(variable[5])-UNTAG_Int(variable[6]));
-  variable[5] = TAG_Int(UNTAG_Int(variable[5])+UNTAG_Int( TAG_Int(1)));
-  variable[4] = variable[5];
-  while (true) { /*while*/
-    variable[5] = TAG_Bool(UNTAG_Int( variable[2] /*from*/)<UNTAG_Int( variable[4] /*stop*/));
-    if (!UNTAG_Bool(variable[5])) break; /* while*/
-    variable[6] = variable[0];
-    variable[6] = ((array___AbstractArray___length_t)CALL(variable[6],COLOR_abstract_collection___Collection___length))(variable[6]) /*AbstractArray::length*/;
-    variable[6] = TAG_Int(UNTAG_Int(variable[6])-UNTAG_Int( TAG_Int(1)));
-    variable[5] = variable[6];
-    while (true) { /*while*/
-      variable[6] = TAG_Bool(UNTAG_Int( variable[5] /*i*/)>=UNTAG_Int( TAG_Int(0)));
-      variable[7] = variable[6];
-      if (UNTAG_Bool(variable[7])) { /* and */
-        variable[7] = variable[0];
-        variable[7] = ((string___String_____bra_t)CALL(variable[7],COLOR_abstract_collection___Map_____bra))(variable[7],  variable[5] /*i*/) /*String::[]*/;
-        variable[8] = TAG_Int(UNTAG_Int( variable[5] /*i*/)+UNTAG_Int( variable[2] /*from*/));
-        variable[8] = ((string___String_____bra_t)CALL( variable[1] /*s*/,COLOR_abstract_collection___Map_____bra))( variable[1] /*s*/, variable[8]) /*String::[]*/;
-        variable[7] = TAG_Bool((variable[7])==(variable[8]));
+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;
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:259 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Assert failed");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_string_search, 259);
+    nit_exit(1);
+  }
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  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 {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:261 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//string_search.nit:261 */
+    if (UNTAG_Bool(REGB2)) {
+      REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:23 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_length");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+        nit_exit(1);
       }
-      variable[6] = variable[7];
-      if (!UNTAG_Bool(variable[6])) break; /* while*/
-      variable[5] = TAG_Int(UNTAG_Int(variable[5])-UNTAG_Int( TAG_Int(1))) /*i*/;
-      continue_35: while(0);
-    }
-    break_35: while(0);
-    variable[6] = TAG_Bool(UNTAG_Int( variable[5] /*i*/)<UNTAG_Int( TAG_Int(0)));
-    if (UNTAG_Bool(variable[6])) { /*if*/
-      variable[3] =  variable[2] /*from*/;
-      goto return_label33;
+      REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB3));
+      /* ./../lib/standard//string_search.nit:263 */
+      while(1) {
+        REGB2 = TAG_Int(0);
+        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);
+          REGB4 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB0));
+          REGB4 = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB4);
+          REGB5 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB4));
+          /* ./../lib/standard//string_search.nit:263 */
+          if (UNTAG_Bool(REGB5)) {
+          } else {
+            REGB4 = TAG_Bool((REGB2)==(REGB4));
+            REGB5 = REGB4;
+          /* ./../lib/standard//string_search.nit:263 */
+          }
+        } else {
+          REGB4 = TAG_Bool(false);
+          REGB5 = REGB4;
+        }
+        if (UNTAG_Bool(REGB5)) {
+          REGB5 = TAG_Int(1);
+          REGB5 = TAG_Int(UNTAG_Int(REGB3)-UNTAG_Int(REGB5));
+          REGB3 = REGB5;
+        /* ./../lib/standard//string_search.nit:263 */
+        } else {
+          goto label1;
+        }
+      }
+      label1: while(0);
+      REGB5 = TAG_Int(0);
+      REGB5 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB5));
+      /* ./../lib/standard//string_search.nit:265 */
+      if (UNTAG_Bool(REGB5)) {
+        REGB5 = REGB0;
+        goto label2;
+      }
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
+      REGB0 = REGB3;
+    /* ./../lib/standard//string_search.nit:267 */
+    } else {
+      /* ./../lib/standard//string_search.nit:261 */
+      goto label3;
     }
-    variable[2] = TAG_Int(UNTAG_Int(variable[2])+UNTAG_Int( TAG_Int(1))) /*from*/;
-    continue_34: while(0);
-  }
-  break_34: while(0);
-  variable[5] = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable[3] = variable[5];
-  goto return_label33;
-  return_label33: while(false);
-  tracehead = trace.prev;
-  return variable[3];
+  }
+  label3: while(0);
+  REGB0 = TAG_Int(1);
+  REGB0 = TAG_Int(-UNTAG_Int(REGB0));
+  REGB5 = REGB0;
+  /* ./../lib/standard//string_search.nit:269 */
+  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 variable[7];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[5] = variable[0];
-  variable[5] = ((string_search___String___search_index_in_t)CALL(variable[5],COLOR_string_search___Pattern___search_index_in))(variable[5],  variable[1] /*s*/,  variable[2] /*from*/) /*String::search_index_in*/;
-  variable[4] = variable[5];
-  variable[5] = TAG_Bool(UNTAG_Int( variable[4] /*pos*/)<UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[3] =  NIT_NULL /*null*/;
-    goto return_label36;
-  } else { /*if*/
-    variable[5] = variable[0];
-    variable[5] = ((array___AbstractArray___length_t)CALL(variable[5],COLOR_abstract_collection___Collection___length))(variable[5]) /*AbstractArray::length*/;
-    variable[6] = NEW_Match_string_search___Match___init( variable[1] /*s*/,  variable[4] /*pos*/, variable[5]); /*new Match*/
-    variable[5] = variable[6];
-    variable[3] = variable[5];
-    goto return_label36;
-  }
-  return_label36: while(false);
-  tracehead = trace.prev;
-  return variable[3];
+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;
+  REGB0 = CALL_string_search___Pattern___search_index_in(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//string_search.nit:275 */
+  if (UNTAG_Bool(REGB1)) {
+    fra.me.REG[2] = NIT_NULL;
+    /* ./../lib/standard//string_search.nit:276 */
+    goto label1;
+  } else {
+    REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:23 */
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_length");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+      nit_exit(1);
+    }
+    REGB1 = ATTR_array___AbstractArrayRead____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];
+    /* ./../lib/standard//string_search.nit:278 */
+    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 variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ((string_search___Pattern___search_in_t)CALL( variable[1] /*p*/,COLOR_string_search___Pattern___search_in))( variable[1] /*p*/, variable[3],  TAG_Int(0)) /*Pattern::search_in*/;
-  variable[2] = variable[3];
-  goto return_label37;
-  return_label37: while(false);
-  tracehead = trace.prev;
-  return variable[2];
+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;
+  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);
+  /* ./../lib/standard//string_search.nit:283 */
+  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 variable[5];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[4] = variable[0];
-  variable[4] = ((string_search___Pattern___search_in_t)CALL( variable[1] /*p*/,COLOR_string_search___Pattern___search_in))( variable[1] /*p*/, variable[4],  variable[2] /*from*/) /*Pattern::search_in*/;
-  variable[3] = variable[4];
-  goto return_label38;
-  return_label38: while(false);
-  tracehead = trace.prev;
-  return variable[3];
+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;
+  fra.me.REG[0] = CALL_string_search___Pattern___search_in(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0], REGB0);
+  /* ./../lib/standard//string_search.nit:288 */
+  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 variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ((string_search___Pattern___search_all_in_t)CALL( variable[1] /*p*/,COLOR_string_search___Pattern___search_all_in))( variable[1] /*p*/, variable[3]) /*Pattern::search_all_in*/;
-  variable[2] = variable[3];
-  goto return_label39;
-  return_label39: while(false);
-  tracehead = trace.prev;
-  return variable[2];
+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;
+  fra.me.REG[0] = CALL_string_search___Pattern___search_all_in(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:297 */
+  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 variable[9];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ((string_search___Pattern___split_in_t)CALL( variable[1] /*p*/,COLOR_string_search___Pattern___split_in))( variable[1] /*p*/, variable[4]) /*Pattern::split_in*/;
-  variable[3] = variable[4];
-  variable[5] = ((array___AbstractArray___length_t)CALL( variable[3] /*matches*/,COLOR_abstract_collection___Collection___length))( variable[3] /*matches*/) /*AbstractArray::length*/;
-  variable[6] = NEW_Array_array___Array___with_capacity(variable[5]); /*new Array[String]*/
-  variable[5] = variable[6];
-  variable[4] = variable[5];
-  variable[5] = ((array___AbstractArray___iterator_t)CALL( variable[3] /*matches*/,COLOR_abstract_collection___Collection___iterator))( variable[3] /*matches*/) /*AbstractArray::iterator*/;
-  while (true) { /*for*/
-    variable[6] = ((array___ArrayIterator___is_ok_t)CALL(variable[5],COLOR_abstract_collection___Iterator___is_ok))(variable[5]) /*ArrayIterator::is_ok*/;
-    if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = ((array___ArrayIterator___item_t)CALL(variable[5],COLOR_abstract_collection___Iterator___item))(variable[5]) /*ArrayIterator::item*/;
-    variable[7] = variable[6];
-    variable[8] = ((string_search___Match___to_s_t)CALL( variable[7] /*m*/,COLOR_string___Object___to_s))( variable[7] /*m*/) /*Match::to_s*/;
-    ((array___AbstractArray___add_t)CALL( variable[4] /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable[4] /*res*/, variable[8]) /*AbstractArray::add*/;
-    continue_41: while(0);
-    ((array___ArrayIterator___next_t)CALL(variable[5],COLOR_abstract_collection___Iterator___next))(variable[5]) /*ArrayIterator::next*/;
-  }
-  break_41: while(0);
-  variable[2] =  variable[4] /*res*/;
-  goto return_label40;
-  return_label40: while(false);
-  tracehead = trace.prev;
-  return variable[2];
+val_t string_search___String___split_with(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} 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 = 299;
+  fra.me.meth = LOCATE_string_search___String___split_with;
+  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;
+  fra.me.REG[0] = CALL_string_search___Pattern___split_in(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  fra.me.REG[1] = NEW_Array_array___Array___with_capacity(REGB0);
+  fra.me.REG[0] = CALL_abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  /* ./../lib/standard//string_search.nit:305 */
+  while(1) {
+    REGB0 = CALL_abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+    if (UNTAG_Bool(REGB0)) {
+      fra.me.REG[2] = CALL_abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
+      fra.me.REG[2] = CALL_string___Object___to_s(fra.me.REG[2])(fra.me.REG[2]);
+      array___Array___add(fra.me.REG[1], fra.me.REG[2]);
+    } else {
+      goto label1;
+    }
+    CALL_abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
+  }
+  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 variable[3];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_string_search;
-  variable[0] =  self;
-  variable[2] = variable[0];
-  variable[2] = ((string_search___String___split_with_t)CALL(variable[2],COLOR_string_search___String___split_with))(variable[2],  TAG_Char('\n')) /*String::split_with*/;
-  variable[1] = variable[2];
-  goto return_label42;
-  return_label42: while(false);
-  tracehead = trace.prev;
-  return variable[1];
+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;
+  REGB0 = TAG_Char('\n');
+  fra.me.REG[0] = CALL_string_search___String___split_with(fra.me.REG[0])(fra.me.REG[0], REGB0);
+  /* ./../lib/standard//string_search.nit:311 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
 }