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ppc64: [baseline] port OnStackReplacement

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Change-Id: I0b69c8042f1b88efc14d2923c595b14f45b9557e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568471
Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79765}
This commit is contained in:
Junliang Yan 2022-04-04 12:33:50 -04:00 committed by V8 LUCI CQ
parent 2be73ed6be
commit 1d56246b78
1 changed files with 60 additions and 45 deletions
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105
src/builtins/ppc/builtins-ppc.cc
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@ -376,6 +376,57 @@ void Generate_JSBuiltinsConstructStubHelper(MacroAssembler* masm) {
} }
} }
void OnStackReplacement(MacroAssembler* masm, bool is_interpreter) {
ASM_CODE_COMMENT(masm);
{
FrameScope scope(masm, StackFrame::INTERNAL);
__ CallRuntime(Runtime::kCompileForOnStackReplacement);
}
// If the code object is null, just return to the caller.
Label skip;
__ CmpSmiLiteral(r3, Smi::zero(), r0);
__ bne(&skip);
__ Ret();
__ bind(&skip);
if (is_interpreter) {
// Drop the handler frame that is be sitting on top of the actual
// JavaScript frame. This is the case then OSR is triggered from bytecode.
__ LeaveFrame(StackFrame::STUB);
}
// Load deoptimization data from the code object.
// <deopt_data> = <code>[#deoptimization_data_offset]
__ LoadTaggedPointerField(
r4, FieldMemOperand(r3, Code::kDeoptimizationDataOrInterpreterDataOffset),
r0);
{
ConstantPoolUnavailableScope constant_pool_unavailable(masm);
__ addi(r3, r3, Operand(Code::kHeaderSize - kHeapObjectTag)); // Code start
if (FLAG_enable_embedded_constant_pool) {
__ LoadConstantPoolPointerRegisterFromCodeTargetAddress(r3);
}
// Load the OSR entrypoint offset from the deoptimization data.
// <osr_offset> = <deopt_data>[#header_size + #osr_pc_offset]
__ SmiUntag(r4,
FieldMemOperand(r4, FixedArray::OffsetOfElementAt(
DeoptimizationData::kOsrPcOffsetIndex)),
LeaveRC, r0);
// Compute the target address = code start + osr_offset
__ add(r0, r3, r4);
// And "return" to the OSR entry point of the function.
__ mtlr(r0);
__ blr();
}
}
} // namespace } // namespace
// The construct stub for ES5 constructor functions and ES6 class constructors. // The construct stub for ES5 constructor functions and ES6 class constructors.
@ -1841,53 +1892,17 @@ void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) {
} }
void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) { void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) {
{ return OnStackReplacement(masm, true);
FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
__ CallRuntime(Runtime::kCompileOptimizedOSR);
}
// If the code object is null, just return to the caller.
Label skip;
__ CmpSmiLiteral(r3, Smi::zero(), r0);
__ bne(&skip);
__ Ret();
__ bind(&skip);
// Drop the handler frame that is be sitting on top of the actual
// JavaScript frame. This is the case then OSR is triggered from bytecode.
__ LeaveFrame(StackFrame::STUB);
// Load deoptimization data from the code object.
// <deopt_data> = <code>[#deoptimization_data_offset]
__ LoadTaggedPointerField(
r4, FieldMemOperand(r3, Code::kDeoptimizationDataOrInterpreterDataOffset),
r0);
{
ConstantPoolUnavailableScope constant_pool_unavailable(masm);
__ addi(r3, r3, Operand(Code::kHeaderSize - kHeapObjectTag)); // Code start
if (FLAG_enable_embedded_constant_pool) {
__ LoadConstantPoolPointerRegisterFromCodeTargetAddress(r3);
}
// Load the OSR entrypoint offset from the deoptimization data.
// <osr_offset> = <deopt_data>[#header_size + #osr_pc_offset]
__ SmiUntag(r4,
FieldMemOperand(r4, FixedArray::OffsetOfElementAt(
DeoptimizationData::kOsrPcOffsetIndex)),
LeaveRC, r0);
// Compute the target address = code start + osr_offset
__ add(r0, r3, r4);
// And "return" to the OSR entry point of the function.
__ mtlr(r0);
__ blr();
}
} }
#if ENABLE_SPARKPLUG
void Builtins::Generate_BaselineOnStackReplacement(MacroAssembler* masm) {
__ LoadU64(kContextRegister,
MemOperand(fp, BaselineFrameConstants::kContextOffset), r0);
return OnStackReplacement(masm, false);
}
#endif
// static // static
void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) { void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) {
// ----------- S t a t e ------------- // ----------- S t a t e -------------