Abcd for performance check.

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index b6244af4129a3349a7df107922128d18706631c9..3e2603eb84fe81cafc956001072dd24baa03df87 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -4349,10 +4349,18 @@ void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) {
     } else {
       __ cmp(ToOperand(instr->length()), Immediate(constant_index));
     }
-    DeoptimizeIf(below_equal, instr->environment());
+    if (instr->hydrogen()->allow_equality()) {
+      DeoptimizeIf(below, instr->environment());
+    } else {
+      DeoptimizeIf(below_equal, instr->environment());
+    }
   } else {
     __ cmp(ToRegister(instr->index()), ToOperand(instr->length()));
-    DeoptimizeIf(above_equal, instr->environment());
+    if (instr->hydrogen()->allow_equality()) {
+      DeoptimizeIf(above, instr->environment());
+    } else {
+      DeoptimizeIf(above_equal, instr->environment());
+    }
   }
 }