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[a64] Remove volatile storing of X0/Q0 

We dont load it back so no need to store it
This commit is contained in:
Wunkolo 2024-05-04 11:52:09 -07:00
parent 07a4df8e2f
commit 88ed113541
1 changed files with 4 additions and 2 deletions
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6
src/xenia/cpu/backend/a64/a64_backend.cc
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@ -399,7 +399,8 @@ ResolveFunctionThunk A64ThunkEmitter::EmitResolveFunctionThunk() {
void A64ThunkEmitter::EmitSaveVolatileRegs() {
// Save off volatile registers.
STR(X0, XSP, offsetof(StackLayout::Thunk, r[0]));
// Preserve arguments passed to and returned from a subroutine
// STR(X0, XSP, offsetof(StackLayout::Thunk, r[0]));
STR(X1, XSP, offsetof(StackLayout::Thunk, r[1]));
STR(X2, XSP, offsetof(StackLayout::Thunk, r[2]));
STR(X3, XSP, offsetof(StackLayout::Thunk, r[3]));
@ -422,7 +423,8 @@ void A64ThunkEmitter::EmitSaveVolatileRegs() {
STR(X30, XSP, offsetof(StackLayout::Thunk, r[19]));
STR(Q0, XSP, offsetof(StackLayout::Thunk, xmm[0]));
// Preserve arguments passed to and returned from a subroutine
// STR(Q0, XSP, offsetof(StackLayout::Thunk, xmm[0]));
STR(Q1, XSP, offsetof(StackLayout::Thunk, xmm[1]));
STR(Q2, XSP, offsetof(StackLayout::Thunk, xmm[2]));
STR(Q3, XSP, offsetof(StackLayout::Thunk, xmm[3]));