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Unified Diff: src/ia32/builtins-ia32.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/ia32/builtins-ia32.cc
diff --git a/src/ia32/builtins-ia32.cc b/src/ia32/builtins-ia32.cc
index bc54b3e207f11deb306f337eb358b8407b00abc3..8cf6fa852340affd0e587bf0f134240e4bd8809c 100644
--- a/src/ia32/builtins-ia32.cc
+++ b/src/ia32/builtins-ia32.cc
@@ -800,22 +800,20 @@ 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.
__ Push(Smi::FromInt(static_cast<int>(type)));
-
__ CallRuntime(Runtime::kNotifyDeoptimized);
-
- __ Pop(kInterpreterAccumulatorRegister); // Restore accumulator register.
// Tear down internal frame.
}
- // Drop state (we don't use these for interpreter deopts) and push PC at top
+ // Drop state (we don't use these for interpreter deopts) and and pop the
+ // accumulator value into the accumulator register and push PC at top
// of stack (to simulate initial call to bytecode handler in interpreter entry
// trampoline).
__ Pop(ebx);
__ Drop(1);
+ __ Pop(kInterpreterAccumulatorRegister);
__ Push(ebx);
// Enter the bytecode dispatch.
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