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

[x64] Remove dead code related to safepoint registers

Browse Source 
Change-Id: I33999e33793662aad741d336018f3a099af17fec
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2728239
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73114}
This commit is contained in:
Shu-yu Guo 2021-03-01 14:27:12 -08:00 committed by Commit Bot
parent 40790bfa44
commit 9c5e0cd832
2 changed files with 0 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/codegen/x64/macro-assembler-x64.cc
View File

@ -2838,12 +2838,6 @@ void TurboAssembler::Popcntq(Register dst, Operand src) {
UNREACHABLE();
}
// Order general registers are pushed by Pushad:
// rax, rcx, rdx, rbx, rsi, rdi, r8, r9, r11, r14, r15.
const int
MacroAssembler::kSafepointPushRegisterIndices[Register::kNumRegisters] = {
0, 1, 2, 3, -1, -1, 4, 5, 6, 7, -1, 8, 9, -1, 10, 11};
void MacroAssembler::PushStackHandler() {
// Adjust this code if not the case.
STATIC_ASSERT(StackHandlerConstants::kSize == 2 * kSystemPointerSize);

21
src/codegen/x64/macro-assembler-x64.h
View File

@ -1140,19 +1140,7 @@ class V8_EXPORT_PRIVATE MacroAssembler : public TurboAssembler {
// In-place weak references.
void LoadWeakValue(Register in_out, Label* target_if_cleared);
// ---------------------------------------------------------------------------
// Debugging
static int SafepointRegisterStackIndex(Register reg) {
return SafepointRegisterStackIndex(reg.code());
}
private:
// Order general registers are pushed by Pushad.
// rax, rcx, rdx, rbx, rsi, rdi, r8, r9, r11, r12, r14, r15.
static const int kSafepointPushRegisterIndices[Register::kNumRegisters];
static const int kNumSafepointSavedRegisters = 12;
// Helper functions for generating invokes.
void InvokePrologue(Register expected_parameter_count,
Register actual_parameter_count, Label* done,
@ -1166,15 +1154,6 @@ class V8_EXPORT_PRIVATE MacroAssembler : public TurboAssembler {
void LeaveExitFrameEpilogue();
// Compute memory operands for safepoint stack slots.
static int SafepointRegisterStackIndex(int reg_code) {
return kNumSafepointRegisters - kSafepointPushRegisterIndices[reg_code] - 1;
}
// Needs access to SafepointRegisterStackIndex for compiled frame
// traversal.
friend class CommonFrame;
DISALLOW_IMPLICIT_CONSTRUCTORS(MacroAssembler);
};