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Merge pull request #10976 from TellowKrinkle/StackFrames

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Improve stack frames for profilers
This commit is contained in:
OatmealDome
2023-06-12 05:00:08 +02:00
committed by GitHub
parent 157deb5864 235b67707f
commit 1a0a1e8f12
4 changed files with 19 additions and 5 deletions
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19
Source/Core/Common/x64ABI.cpp
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@ -43,17 +43,24 @@ void XEmitter::ABI_CalculateFrameSize(BitSet32 mask, size_t rsp_alignment, size_
size_t XEmitter::ABI_PushRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignment,
size_t needed_frame_size)
{
mask[RSP] = false; // Stack pointer is never pushed
size_t shadow, subtraction, xmm_offset;
ABI_CalculateFrameSize(mask, rsp_alignment, needed_frame_size, &shadow, &subtraction,
&xmm_offset);
for (int r : mask& ABI_ALL_GPRS)
if (mask[RBP])
{
// Make a nice stack frame for any debuggers or profilers that might be looking at this
PUSH(RBP);
MOV(64, R(RBP), R(RSP));
}
for (int r : (mask & ABI_ALL_GPRS & ~BitSet32{RBP}))
PUSH((X64Reg)r);
if (subtraction)
SUB(64, R(RSP), subtraction >= 0x80 ? Imm32((u32)subtraction) : Imm8((u8)subtraction));
for (int x : mask& ABI_ALL_FPRS)
for (int x : (mask & ABI_ALL_FPRS))
{
MOVAPD(MDisp(RSP, (int)xmm_offset), (X64Reg)(x - 16));
xmm_offset += 16;
@ -65,11 +72,12 @@ size_t XEmitter::ABI_PushRegistersAndAdjustStack(BitSet32 mask, size_t rsp_align
void XEmitter::ABI_PopRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignment,
size_t needed_frame_size)
{
mask[RSP] = false; // Stack pointer is never pushed
size_t shadow, subtraction, xmm_offset;
ABI_CalculateFrameSize(mask, rsp_alignment, needed_frame_size, &shadow, &subtraction,
&xmm_offset);
for (int x : mask& ABI_ALL_FPRS)
for (int x : (mask & ABI_ALL_FPRS))
{
MOVAPD((X64Reg)(x - 16), MDisp(RSP, (int)xmm_offset));
xmm_offset += 16;
@ -80,9 +88,12 @@ void XEmitter::ABI_PopRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignmen
for (int r = 15; r >= 0; r--)
{
if (mask[r])
if (r != RBP && mask[r])
POP((X64Reg)r);
}
// RSP is pushed first and popped last to make debuggers/profilers happy
if (mask[RBP])
POP(RBP);
}
void XEmitter::MOVTwo(int bits, Gen::X64Reg dst1, Gen::X64Reg src1, s32 offset1, Gen::X64Reg dst2,