AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

[riscv64] [deoptimizer] Remove non-fixed-size deopts

Browse Source 
Port 0a110021d2

Change-Id: I922cde72d100b8d1ef006a7752400c568b675532
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3559629
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#79666}
This commit is contained in:
Lu Yahan 2022-03-30 11:04:52 +08:00 committed by V8 LUCI CQ
parent e76ad5c6d9
commit 5cf05b0aaf
1 changed files with 9 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/builtins/riscv64/builtins-riscv64.cc
View File

@ -3516,18 +3516,17 @@ void Generate_DeoptimizationEntry(MacroAssembler* masm,
const int kSavedRegistersAreaSize =
(kNumberOfRegisters * kSystemPointerSize) + kDoubleRegsSize;
__ li(a2, Operand(Deoptimizer::kFixedExitSizeMarker));
// Get the address of the location in the code object (a3) (return
// address for lazy deoptimization) and compute the fp-to-sp delta in
// register a4.
__ Move(a3, ra);
__ Add64(a4, sp, Operand(kSavedRegistersAreaSize));
__ Move(a2, ra);
__ Add64(a3, sp, Operand(kSavedRegistersAreaSize));
__ Sub64(a4, fp, a4);
__ Sub64(a3, fp, a3);
// Allocate a new deoptimizer object.
__ PrepareCallCFunction(6, a5);
// Pass six arguments, according to n64 ABI.
__ PrepareCallCFunction(5, a4);
// Pass five arguments, according to n64 ABI.
__ Move(a0, zero_reg);
Label context_check;
__ Ld(a1, MemOperand(fp, CommonFrameConstants::kContextOrFrameTypeOffset));
@ -3535,15 +3534,14 @@ void Generate_DeoptimizationEntry(MacroAssembler* masm,
__ Ld(a0, MemOperand(fp, StandardFrameConstants::kFunctionOffset));
__ bind(&context_check);
__ li(a1, Operand(static_cast<int64_t>(deopt_kind)));
// a2: bailout id already loaded.
// a3: code address or 0 already loaded.
// a4: already has fp-to-sp delta.
__ li(a5, ExternalReference::isolate_address(isolate));
// a2: code object address
// a3: fp-to-sp delta
__ li(a4, ExternalReference::isolate_address(isolate));
// Call Deoptimizer::New().
{
AllowExternalCallThatCantCauseGC scope(masm);
__ CallCFunction(ExternalReference::new_deoptimizer_function(), 6);
__ CallCFunction(ExternalReference::new_deoptimizer_function(), 5);
}
// Preserve "deoptimizer" object in register a0 and get the input