Emulator-Archive/ppsspp
1
0
Fork 0
mirror of https://github.com/hrydgard/ppsspp.git synced 2024-12-13 16:45:46 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

riscv: Implement conditional moves.

Browse Source
This commit is contained in:
Unknown W. Brackets 2023-07-22 22:34:48 -07:00
parent 2c7da94bd1
commit 92694e765f
1 changed files with 62 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
Core/MIPS/RiscV/RiscVCompALU.cpp
View File

@ -480,12 +480,73 @@ void RiscVJit::CompIR_Compare(IRInst inst) {
void RiscVJit::CompIR_CondAssign(IRInst inst) {
CONDITIONAL_DISABLE;
RiscVReg lhs = INVALID_REG;
RiscVReg rhs = INVALID_REG;
FixupBranch fixup;
switch (inst.op) {
case IROp::MovZ:
case IROp::MovNZ:
if (inst.dest == inst.src2)
return;
// We could have a "zero" that with wrong upper due to XOR, so we have to normalize.
gpr.MapDirtyInIn(inst.dest, inst.src1, inst.src2, MapType::ALWAYS_LOAD);
lhs = gpr.R(inst.src1);
if (gpr.IsMappedAsStaticPointer(inst.src1) || inst.src1 == inst.dest) {
lhs = gpr.Normalize32(inst.src1, SCRATCH1);
} else {
gpr.Normalize32(inst.src1);
}
switch (inst.op) {
case IROp::MovZ:
fixup = BNE(lhs, R_ZERO);
break;
case IROp::MovNZ:
fixup = BEQ(lhs, R_ZERO);
break;
default:
INVALIDOP;
break;
}
MV(gpr.R(inst.dest), gpr.R(inst.src2));
SetJumpTarget(fixup);
break;
case IROp::Max:
if (inst.src1 != inst.src2) {
if (cpu_info.RiscV_Zbb) {
gpr.MapDirtyInIn(inst.dest, inst.src1, inst.src2);
MAX(gpr.R(inst.dest), gpr.R(inst.src1), gpr.R(inst.src2));
if (gpr.IsNormalized32(inst.src1) && gpr.IsNormalized32(inst.src2))
gpr.MarkDirty(gpr.R(inst.dest), true);
} else {
CompIR_Generic(inst);
}
} else if (inst.dest != inst.src1) {
gpr.MapDirtyIn(inst.dest, inst.src1);
MV(gpr.R(inst.dest), gpr.R(inst.src1));
gpr.MarkDirty(gpr.R(inst.dest), gpr.IsNormalized32(inst.src1));
}
break;
case IROp::Min:
CompIR_Generic(inst);
if (inst.src1 != inst.src2) {
if (cpu_info.RiscV_Zbb) {
gpr.MapDirtyInIn(inst.dest, inst.src1, inst.src2);
MIN(gpr.R(inst.dest), gpr.R(inst.src1), gpr.R(inst.src2));
if (gpr.IsNormalized32(inst.src1) && gpr.IsNormalized32(inst.src2))
gpr.MarkDirty(gpr.R(inst.dest), true);
} else {
CompIR_Generic(inst);
}
} else if (inst.dest != inst.src1) {
gpr.MapDirtyIn(inst.dest, inst.src1);
MV(gpr.R(inst.dest), gpr.R(inst.src1));
gpr.MarkDirty(gpr.R(inst.dest), gpr.IsNormalized32(inst.src1));
}
break;
default: