Emulator-Archive/ppsspp
1
0
Fork 0
mirror of https://github.com/hrydgard/ppsspp.git synced 2024-11-27 07:20:49 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

x86: Use LEA in a few sensible places.

Browse Source
This commit is contained in:
Unknown W. Brackets 2023-08-27 13:23:32 -07:00
parent 85c375fc60
commit 479ebaea11
1 changed files with 7 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
Core/MIPS/x86/X64IRCompALU.cpp
View File

@ -88,24 +88,20 @@ void X64JitBackend::CompIR_Arith(IRInst inst) {
case IROp::AddConst:
if (regs_.IsGPRMappedAsPointer(inst.dest) && inst.dest == inst.src1 && allowPtrMath) {
regs_.MarkGPRAsPointerDirty(inst.dest);
ADD(PTRBITS, regs_.RPtr(inst.dest), SImmAuto(inst.constant));
LEA(PTRBITS, regs_.RXPtr(inst.dest), MDisp(regs_.RXPtr(inst.dest), inst.constant));
} else {
regs_.Map(inst);
if (inst.dest != inst.src1)
MOV(32, regs_.R(inst.dest), regs_.R(inst.src1));
ADD(32, regs_.R(inst.dest), SImmAuto(inst.constant));
LEA(32, regs_.RX(inst.dest), MDisp(regs_.RX(inst.src1), inst.constant));
}
break;
case IROp::SubConst:
if (regs_.IsGPRMappedAsPointer(inst.dest) && inst.dest == inst.src1 && allowPtrMath) {
regs_.MarkGPRAsPointerDirty(inst.dest);
SUB(PTRBITS, regs_.RPtr(inst.dest), SImmAuto(inst.constant));
LEA(PTRBITS, regs_.RXPtr(inst.dest), MDisp(regs_.RXPtr(inst.dest), -(int)inst.constant));
} else {
regs_.Map(inst);
if (inst.dest != inst.src1)
MOV(32, regs_.R(inst.dest), regs_.R(inst.src1));
SUB(32, regs_.R(inst.dest), SImmAuto(inst.constant));
LEA(32, regs_.RX(inst.dest), MDisp(regs_.RX(inst.src1), -(int)inst.constant));
}
break;
@ -630,6 +626,9 @@ void X64JitBackend::CompIR_Shift(IRInst inst) {
regs_.Map(inst);
MOV(32, regs_.R(inst.dest), regs_.R(inst.src1));
}
} else if (inst.src2 <= 3) {
regs_.Map(inst);
LEA(32, regs_.RX(inst.dest), MScaled(regs_.RX(inst.src1), 1 << inst.src2, 0));
} else {
regs_.Map(inst);
if (inst.dest != inst.src1)