Hydrogenisation of binops

src/arm/full-codegen-arm.cc

Index: src/arm/full-codegen-arm.cc
diff --git a/src/arm/full-codegen-arm.cc b/src/arm/full-codegen-arm.cc
index b6fb70b5df0f5c86a621f6711c5f8a24e7f7be8d..1b20cb8c0dacf2568ed7b6922ee64d0e796f0d65 100644
--- a/src/arm/full-codegen-arm.cc
+++ b/src/arm/full-codegen-arm.cc
@@ -1934,19 +1934,13 @@ void FullCodeGenerator::VisitAssignment(Assignment* expr) {
     __ push(r0);  // Left operand goes on the stack.
     VisitForAccumulatorValue(expr->value());
 
-    OverwriteMode mode = expr->value()->ResultOverwriteAllowed()
-        ? OVERWRITE_RIGHT
-        : NO_OVERWRITE;
     SetSourcePosition(expr->position() + 1);
     AccumulatorValueContext context(this);
     if (ShouldInlineSmiCase(op)) {
-      EmitInlineSmiBinaryOp(expr->binary_operation(),
-                            op,
-                            mode,
-                            expr->target(),
-                            expr->value());
+      EmitInlineSmiBinaryOp(expr->binary_operation(), op,
+                            expr->target(), expr->value());
     } else {
-      EmitBinaryOp(expr->binary_operation(), op, mode);
+      EmitBinaryOp(expr->binary_operation(), op);
     }
 
     // Deoptimization point in case the binary operation may have side effects.
@@ -2273,7 +2267,6 @@ void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
 
 void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
                                               Token::Value op,
-                                              OverwriteMode mode,
                                               Expression* left_expr,
                                               Expression* right_expr) {
   Label done, smi_case, stub_call;
@@ -2293,7 +2286,7 @@ void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
   patch_site.EmitJumpIfSmi(scratch1, &smi_case);
 
   __ bind(&stub_call);
-  BinaryOpStub stub(op, mode);
+  BinaryOpStub stub(op);
   CallIC(stub.GetCode(isolate()), RelocInfo::CODE_TARGET,
          expr->BinaryOperationFeedbackId());
   patch_site.EmitPatchInfo();
@@ -2368,10 +2361,9 @@ void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
 
 
 void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr,
-                                     Token::Value op,
-                                     OverwriteMode mode) {
+                                     Token::Value op) {
   __ pop(r1);
-  BinaryOpStub stub(op, mode);
+  BinaryOpStub stub(op);
   JumpPatchSite patch_site(masm_);    // unbound, signals no inlined smi code.
   CallIC(stub.GetCode(isolate()), RelocInfo::CODE_TARGET,
          expr->BinaryOperationFeedbackId());
@@ -4461,7 +4453,7 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
   // Record position before stub call.
   SetSourcePosition(expr->position());
 
-  BinaryOpStub stub(Token::ADD, NO_OVERWRITE);
+  BinaryOpStub stub(Token::ADD);
   CallIC(stub.GetCode(isolate()),
          RelocInfo::CODE_TARGET,
          expr->CountBinOpFeedbackId());