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riscv: Implement vec4 shuffle and init.

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This commit is contained in:
Unknown W. Brackets 2023-07-25 19:12:00 -07:00
parent 4e17c59cc2
commit 23e9dffc68
2 changed files with 81 additions and 1 deletions
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1
Core/MIPS/RiscV/RiscVCompSystem.cpp
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@ -55,6 +55,7 @@ void RiscVJit::CompIR_Basic(IRInst inst) {
FCVT(FConv::S, FConv::W, fpr.R(inst.dest), R_ZERO);
} else {
// TODO: In the future, could use FLI if it's approved.
// Also, is FCVT faster?
LI(SCRATCH1, (int32_t)inst.constant);
FMV(FMv::W, FMv::X, fpr.R(inst.dest), SCRATCH1);
}

81
Core/MIPS/RiscV/RiscVCompVec.cpp
View File

@ -39,9 +39,88 @@ void RiscVJit::CompIR_VecAssign(IRInst inst) {
switch (inst.op) {
case IROp::Vec4Init:
for (int i = 0; i < 4; ++i)
fpr.SpillLock(inst.dest + i);
for (int i = 0; i < 4; ++i)
fpr.MapReg(inst.dest + i, MIPSMap::NOINIT);
for (int i = 0; i < 4; ++i)
fpr.ReleaseSpillLock(inst.dest + i);
// TODO: Check if FCVT/FMV/FL is better.
switch ((Vec4Init)inst.src1) {
case Vec4Init::AllZERO:
for (int i = 0; i < 4; ++i)
FCVT(FConv::S, FConv::W, fpr.R(inst.dest + i), R_ZERO);
break;
case Vec4Init::AllONE:
LI(SCRATCH1, 1.0f);
FMV(FMv::W, FMv::X, fpr.R(inst.dest), SCRATCH1);
for (int i = 1; i < 4; ++i)
FMV(32, fpr.R(inst.dest + i), fpr.R(inst.dest));
break;
case Vec4Init::AllMinusONE:
LI(SCRATCH1, -1.0f);
FMV(FMv::W, FMv::X, fpr.R(inst.dest), SCRATCH1);
for (int i = 1; i < 4; ++i)
FMV(32, fpr.R(inst.dest + i), fpr.R(inst.dest));
break;
case Vec4Init::Set_1000:
LI(SCRATCH1, 1.0f);
for (int i = 0; i < 4; ++i) {
if (i == 0)
FMV(FMv::W, FMv::X, fpr.R(inst.dest + i), SCRATCH1);
else
FCVT(FConv::S, FConv::W, fpr.R(inst.dest + i), R_ZERO);
}
break;
case Vec4Init::Set_0100:
LI(SCRATCH1, 1.0f);
for (int i = 0; i < 4; ++i) {
if (i == 1)
FMV(FMv::W, FMv::X, fpr.R(inst.dest + i), SCRATCH1);
else
FCVT(FConv::S, FConv::W, fpr.R(inst.dest + i), R_ZERO);
}
break;
case Vec4Init::Set_0010:
LI(SCRATCH1, 1.0f);
for (int i = 0; i < 4; ++i) {
if (i == 2)
FMV(FMv::W, FMv::X, fpr.R(inst.dest + i), SCRATCH1);
else
FCVT(FConv::S, FConv::W, fpr.R(inst.dest + i), R_ZERO);
}
break;
case Vec4Init::Set_0001:
LI(SCRATCH1, 1.0f);
for (int i = 0; i < 4; ++i) {
if (i == 3)
FMV(FMv::W, FMv::X, fpr.R(inst.dest + i), SCRATCH1);
else
FCVT(FConv::S, FConv::W, fpr.R(inst.dest + i), R_ZERO);
}
break;
}
break;
case IROp::Vec4Shuffle:
fpr.Map4DirtyIn(inst.dest, inst.src1);
for (int i = 0; i < 4; ++i) {
int lane = (inst.src2 >> (i * 2)) & 3;
FMV(32, fpr.R(inst.dest + i), fpr.R(inst.src1 + lane));
}
break;
case IROp::Vec4Mov:
CompIR_Generic(inst);
fpr.Map4DirtyIn(inst.dest, inst.src1);
for (int i = 0; i < 4; ++i)
FMV(32, fpr.R(inst.dest + i), fpr.R(inst.src1 + i));
break;
default: