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Unified Diff: src/x87/builtins-x87.cc

Issue 1950913004: [Interpreter] Fix bytecode offset for stack overflows. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 7 months ago
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Index: src/x87/builtins-x87.cc
diff --git a/src/x87/builtins-x87.cc b/src/x87/builtins-x87.cc
index 46495919c8193d08c1b847a4f0a303cc9bb640cd..87e3d9a8ee2d23d1db160f013421bd1ccc55a1b8 100644
--- a/src/x87/builtins-x87.cc
+++ b/src/x87/builtins-x87.cc
@@ -573,8 +573,8 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
// Push bytecode array.
__ push(kInterpreterBytecodeArrayRegister);
- // Push zero for bytecode array offset.
- __ push(Immediate(0));
+ // Push Smi tagged initial bytecode array offset.
+ __ push(Immediate(Smi::FromInt(BytecodeArray::kHeaderSize - kHeapObjectTag)));
// Allocate the local and temporary register file on the stack.
{
@@ -607,11 +607,8 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
__ j(greater_equal, &loop_header);
}
- // Load accumulator, register file, bytecode offset, dispatch table into
- // registers.
+ // Load accumulator, bytecode offset and dispatch table into registers.
__ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
- __ mov(edx, ebp);
- __ add(edx, Immediate(InterpreterFrameConstants::kRegisterFileFromFp));
__ mov(kInterpreterBytecodeOffsetRegister,
Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag));
__ mov(kInterpreterDispatchTableRegister,

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