compiler: fast path is the hot path in once and literal strings

[nit.git] / src / compiler / abstract_compiler.nit

diff --git a/src/compiler/abstract_compiler.nit b/src/compiler/abstract_compiler.nit
index 01de936..b53a7a2 100644 (file)
--- a/src/compiler/abstract_compiler.nit
+++ b/src/compiler/abstract_compiler.nit
@@ -1443,7 +1443,7 @@ abstract class AbstractCompilerVisitor
                var name = self.get_name("varonce")
                self.add_decl("static {mtype.ctype} {name};")
                var res = self.new_var(mtype)
-               self.add("if ({name}) \{")
+               self.add("if (likely({name}!=NULL)) \{")
                self.add("{res} = {name};")
                self.add("\} else \{")
                var native_mtype = self.get_class("NativeString").mclass_type
@@ -2823,7 +2823,7 @@ redef class AOnceExpr
                v.add_decl("static {mtype.ctype} {name};")
                v.add_decl("static int {guard};")
                var res = v.new_var(mtype)
-               v.add("if ({guard}) \{")
+               v.add("if (likely({guard})) \{")
                v.add("{res} = {name};")
                v.add("\} else \{")
                var i = v.expr(self.n_expr, mtype)