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IR: Implement VectorSetElement{8,16,32,64}

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This commit is contained in:
MerryMage 2018-02-02 21:00:12 +00:00
parent a5c4fbc783
commit ebfc51c609
4 changed files with 120 additions and 0 deletions
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98
src/backend_x64/emit_x64_vector.cpp
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@ -101,6 +101,104 @@ void EmitX64::EmitVectorGetElement64(EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.DefineValue(inst, dest);
}
void EmitX64::EmitVectorSetElement8(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ASSERT(args[1].IsImmediate());
u8 index = args[1].GetImmediateU8();
if (code->DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
Xbyak::Reg8 source_elem = ctx.reg_alloc.UseGpr(args[2]).cvt8();
code->pinsrb(source_vector, source_elem.cvt32(), index);
ctx.reg_alloc.DefineValue(inst, source_vector);
} else {
Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
Xbyak::Reg32 source_elem = ctx.reg_alloc.UseScratchGpr(args[2]).cvt32();
Xbyak::Reg32 tmp = ctx.reg_alloc.ScratchGpr().cvt32();
code->pextrw(tmp, source_vector, index / 2);
if (index % 2 == 0) {
code->and_(tmp, 0xFF00);
code->and_(source_elem, 0x00FF);
code->or_(tmp, source_elem);
} else {
code->and_(tmp, 0x00FF);
code->shl(source_elem, 8);
code->or_(tmp, source_elem);
}
code->pinsrw(source_vector, tmp, index / 2);
ctx.reg_alloc.DefineValue(inst, source_vector);
}
}
void EmitX64::EmitVectorSetElement16(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ASSERT(args[1].IsImmediate());
u8 index = args[1].GetImmediateU8();
Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
Xbyak::Reg16 source_elem = ctx.reg_alloc.UseGpr(args[2]).cvt16();
code->pinsrw(source_vector, source_elem.cvt32(), index);
ctx.reg_alloc.DefineValue(inst, source_vector);
}
void EmitX64::EmitVectorSetElement32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ASSERT(args[1].IsImmediate());
u8 index = args[1].GetImmediateU8();
if (code->DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
Xbyak::Reg32 source_elem = ctx.reg_alloc.UseGpr(args[2]).cvt32();
code->pinsrd(source_vector, source_elem, index);
ctx.reg_alloc.DefineValue(inst, source_vector);
} else {
Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
Xbyak::Reg32 source_elem = ctx.reg_alloc.UseScratchGpr(args[2]).cvt32();
code->pinsrw(source_vector, source_elem, index * 2);
code->shr(source_elem, 16);
code->pinsrw(source_vector, source_elem, index * 2 + 1);
ctx.reg_alloc.DefineValue(inst, source_vector);
}
}
void EmitX64::EmitVectorSetElement64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ASSERT(args[1].IsImmediate());
u8 index = args[1].GetImmediateU8();
if (code->DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
Xbyak::Reg64 source_elem = ctx.reg_alloc.UseGpr(args[2]);
code->pinsrq(source_vector, source_elem, index);
ctx.reg_alloc.DefineValue(inst, source_vector);
} else {
Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
Xbyak::Reg64 source_elem = ctx.reg_alloc.UseScratchGpr(args[2]);
code->pinsrw(source_vector, source_elem.cvt32(), index * 4);
code->shr(source_elem, 16);
code->pinsrw(source_vector, source_elem.cvt32(), index * 4 + 1);
code->shr(source_elem, 16);
code->pinsrw(source_vector, source_elem.cvt32(), index * 4 + 2);
code->shr(source_elem, 16);
code->pinsrw(source_vector, source_elem.cvt32(), index * 4 + 3);
ctx.reg_alloc.DefineValue(inst, source_vector);
}
}
void EmitX64::EmitVectorAdd8(EmitContext& ctx, IR::Inst* inst) {
EmitVectorOperation(code, ctx, inst, &Xbyak::CodeGenerator::paddb);
}