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 ffdeae7a4198bd9f4c7b181c4fb1e440dee78ecc..f3626934dede6c7cd72b6a28db3c17d517305f51 100644 |
--- a/src/compiler/ia32/code-generator-ia32.cc |
+++ b/src/compiler/ia32/code-generator-ia32.cc |
@@ -327,18 +327,23 @@ class OutOfLineRecordWrite final : public OutOfLineCode { |
void CodeGenerator::AssembleDeconstructActivationRecord(int stack_param_delta) { |
+ int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta); |
+ if (sp_slot_delta > 0) { |
+ __ add(esp, Immediate(sp_slot_delta * kPointerSize)); |
+ } |
CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
- int stack_slots = frame()->GetSpillSlotCount(); |
- if (descriptor->IsJSFunctionCall() || stack_slots > 0) { |
- __ mov(esp, ebp); |
+ int spill_slots = frame()->GetSpillSlotCount(); |
+ bool has_frame = descriptor->IsJSFunctionCall() || spill_slots > 0; |
+ if (has_frame) { |
__ pop(ebp); |
} |
- if (stack_param_delta < 0) { |
- int offset = -(stack_param_delta + 1) * kPointerSize; |
- __ pop(Operand(esp, offset)); |
- if (offset != 0) { |
- __ add(esp, Immediate(offset)); |
- } |
+} |
+ |
+ |
+void CodeGenerator::AssemblePrepareTailCall(int stack_param_delta) { |
+ int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta); |
+ if (sp_slot_delta < 0) { |
+ __ sub(esp, Immediate(-sp_slot_delta * kPointerSize)); |
} |
} |
@@ -408,6 +413,9 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) { |
__ PrepareCallCFunction(num_parameters, i.TempRegister(0)); |
break; |
} |
+ case kArchPrepareTailCall: |
+ AssemblePrepareTailCall(i.InputInt32(instr->InputCount() - 1)); |
+ break; |
case kArchCallCFunction: { |
int const num_parameters = MiscField::decode(instr->opcode()); |
if (HasImmediateInput(instr, 0)) { |