Type feedback for Unary Plus

src/ia32/full-codegen-ia32.cc

Index: src/ia32/full-codegen-ia32.cc
diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc
index 19989b1c626dd3ea85f6cb9c3c44d7bfab8dffa9..82b107f07fcb9bead38f739da75fc8f53d854885 100644
--- a/src/ia32/full-codegen-ia32.cc
+++ b/src/ia32/full-codegen-ia32.cc
@@ -3972,8 +3972,14 @@ void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
       VisitForAccumulatorValue(expr->expression());
       Label no_conversion;
       __ JumpIfSmi(result_register(), &no_conversion);
-      ToNumberStub convert_stub;
-      __ CallStub(&convert_stub);
+      __ mov(edx, Immediate(Smi::FromInt(1)));
+      OverwriteMode mode = expr->expression()->ResultOverwriteAllowed()
+          ? OVERWRITE_RIGHT : NO_OVERWRITE;
+      BinaryOpStub stub(Token::MUL, mode);
+      JumpPatchSite patch_site(masm_);  // unbound, signals no inlined smi code.
+      CallIC(stub.GetCode(isolate()), RelocInfo::CODE_TARGET,
+             expr->UnaryOperationFeedbackId());
+      patch_site.EmitPatchInfo();
       __ bind(&no_conversion);
       context()->Plug(result_register());
       break;