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Unified Diff: src/arm64/builtins-arm64.cc

Issue 1707133003: [Interpreter] Fix deopt when accumulator needs to be materialized. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Address comments and add test Created 4 years, 10 months ago
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Index: src/arm64/builtins-arm64.cc
diff --git a/src/arm64/builtins-arm64.cc b/src/arm64/builtins-arm64.cc
index 337a090ad351adfe3e002f80bf22fcc5023aec42..e08ae271f68fbfe49fe364fc8f9635f7063b0d6d 100644
--- a/src/arm64/builtins-arm64.cc
+++ b/src/arm64/builtins-arm64.cc
@@ -1145,19 +1145,18 @@ static void Generate_InterpreterNotifyDeoptimizedHelper(
// Enter an internal frame.
{
FrameScope scope(masm, StackFrame::INTERNAL);
- __ Push(kInterpreterAccumulatorRegister); // Save accumulator register.
// Pass the deoptimization type to the runtime system.
__ Mov(x1, Operand(Smi::FromInt(static_cast<int>(type))));
__ Push(x1);
__ CallRuntime(Runtime::kNotifyDeoptimized);
-
- __ Pop(kInterpreterAccumulatorRegister); // Restore accumulator register.
// Tear down internal frame.
}
- // Drop state (we don't use this for interpreter deopts).
+ // Drop state (we don't use these for interpreter deopts) and and pop the
+ // accumulator value into the accumulator register.
__ Drop(1);
+ __ Pop(kInterpreterAccumulatorRegister);
// Enter the bytecode dispatch.
Generate_EnterBytecodeDispatch(masm);
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