Perform receiver patching for sloppy mode in high-level IR.

src/compiler/ia32/code-generator-ia32.cc

Index: src/compiler/ia32/code-generator-ia32.cc
diff --git a/src/compiler/ia32/code-generator-ia32.cc b/src/compiler/ia32/code-generator-ia32.cc
index dda469639d9fc25ad7c396509a20a75da3f79a02..e226aafb908b5f9f32166e794afffa524267db1a 100644
--- a/src/compiler/ia32/code-generator-ia32.cc
+++ b/src/compiler/ia32/code-generator-ia32.cc
@@ -818,24 +818,6 @@ void CodeGenerator::AssemblePrologue() {
     __ Prologue(info->IsCodePreAgingActive());
     frame->SetRegisterSaveAreaSize(
         StandardFrameConstants::kFixedFrameSizeFromFp);
-
-    // Sloppy mode functions and builtins need to replace the receiver with the
-    // global proxy when called as functions (without an explicit receiver
-    // object).
-    // TODO(mstarzinger/verwaest): Should this be moved back into the CallIC?
-    if (info->strict_mode() == SLOPPY && !info->is_native()) {
-      Label ok;
-      // +2 for return address and saved frame pointer.
-      int receiver_slot = info->scope()->num_parameters() + 2;
-      __ mov(ecx, Operand(ebp, receiver_slot * kPointerSize));
-      __ cmp(ecx, isolate()->factory()->undefined_value());
-      __ j(not_equal, &ok, Label::kNear);
-      __ mov(ecx, GlobalObjectOperand());
-      __ mov(ecx, FieldOperand(ecx, GlobalObject::kGlobalProxyOffset));
-      __ mov(Operand(ebp, receiver_slot * kPointerSize), ecx);
-      __ bind(&ok);
-    }
-
   } else {
     __ StubPrologue();
     frame->SetRegisterSaveAreaSize(