SwitchEmu/dynarmic
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/dynarmic.git synced 2026-02-18 22:42:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

IR: Implement VectorSignExtend

Browse Source
This commit is contained in:
MerryMage
2018-02-11 16:24:33 +00:00
parent a90e4955ab
commit eae518a338
4 changed files with 75 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
src/backend_x64/emit_x64_vector.cpp
View File

@@ -938,6 +938,61 @@ void EmitX64::EmitVectorPopulationCount(EmitContext& ctx, IR::Inst* inst) {
});
}
void EmitX64::EmitVectorSignExtend8(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
if (code.DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
const Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
code.pmovsxbw(a, a);
ctx.reg_alloc.DefineValue(inst, a);
} else {
const Xbyak::Xmm a = ctx.reg_alloc.UseXmm(args[0]);
const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm();
code.pxor(result, result);
code.punpcklbw(result, a);
code.psraw(result, 8);
ctx.reg_alloc.DefineValue(inst, result);
}
}
void EmitX64::EmitVectorSignExtend16(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
if (code.DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
const Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
ctx.reg_alloc.DefineValue(inst, a);
code.pmovsxwd(a, a);
} else {
const Xbyak::Xmm a = ctx.reg_alloc.UseXmm(args[0]);
const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm();
code.pxor(result, result);
code.punpcklwd(result, a);
code.psrad(result, 16);
ctx.reg_alloc.DefineValue(inst, result);
}
}
void EmitX64::EmitVectorSignExtend32(EmitContext& ctx, IR::Inst* inst) {
if (code.DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
code.pmovsxdq(a, a);
ctx.reg_alloc.DefineValue(inst, a);
return;
}
EmitOneArgumentFallback(code, ctx, inst, [](std::array<u64, 2>& result, const std::array<u32, 4>& a){
for (size_t i = 0; i < 2; ++i) {
result[i] = Common::SignExtend<32, u64>(a[i]);
}
});
}
void EmitX64::EmitVectorSignExtend64(EmitContext& ctx, IR::Inst* inst) {
EmitOneArgumentFallback(code, ctx, inst, [](std::array<u64, 2>& result, const std::array<u64, 2>& a){
result[1] = (a[0] >> 63) ? ~u64(0) : 0;
result[0] = a[0];
});
}
void EmitX64::EmitVectorSub8(EmitContext& ctx, IR::Inst* inst) {
EmitVectorOperation(code, ctx, inst, &Xbyak::CodeGenerator::psubb);
}