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IR: Implement Vector{Lower,}Broadcast{8,16,32,64}

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This commit is contained in:
MerryMage
2018-01-24 12:00:28 +00:00
parent 8ee854232c
commit 793753bf63
4 changed files with 131 additions and 0 deletions
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89
src/backend_x64/emit_x64_vector.cpp
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@@ -205,5 +205,94 @@ void EmitX64::EmitVectorPairedAdd64(EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorLowerBroadcast8(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
if (code->DoesCpuSupport(Xbyak::util::Cpu::tSSSE3)) {
Xbyak::Xmm tmp = ctx.reg_alloc.ScratchXmm();
code->pxor(tmp, tmp);
code->pshufb(a, tmp);
code->movq(a, a);
} else {
code->punpcklbw(a, a);
code->pshuflw(a, a, 0);
}
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorLowerBroadcast16(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
code->pshuflw(a, a, 0);
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorLowerBroadcast32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
code->pshuflw(a, a, 0b01000100);
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorBroadcast8(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
if (code->DoesCpuSupport(Xbyak::util::Cpu::tSSSE3)) {
Xbyak::Xmm tmp = ctx.reg_alloc.ScratchXmm();
code->pxor(tmp, tmp);
code->pshufb(a, tmp);
} else {
code->punpcklbw(a, a);
code->pshuflw(a, a, 0);
code->punpcklqdq(a, a);
}
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorBroadcast16(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
code->pshuflw(a, a, 0);
code->punpcklqdq(a, a);
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorBroadcast32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
code->pshufd(a, a, 0);
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorBroadcast64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
code->punpcklqdq(a, a);
ctx.reg_alloc.DefineValue(inst, a);
}
} // namespace BackendX64
} // namespace Dynarmic