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emit_x64_vector: Deduplicate a bit of code in EmitVectorSetElement{8, 32, 64} functions

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Given both branches are the same, we can hoist out the common code.
This commit is contained in:
Lioncash 2018-07-06 20:08:20 -04:00 committed by MerryMage
parent 593eca7fb1
commit 0bee648b4f
1 changed files with 13 additions and 16 deletions
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29
src/backend_x64/emit_x64_vector.cpp
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@ -172,19 +172,18 @@ void EmitX64::EmitVectorGetElement64(EmitContext& ctx, IR::Inst* inst) {
void EmitX64::EmitVectorSetElement8(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ASSERT(args[1].IsImmediate());
u8 index = args[1].GetImmediateU8();
const u8 index = args[1].GetImmediateU8();
const Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
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();
const 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();
const Xbyak::Reg32 source_elem = ctx.reg_alloc.UseScratchGpr(args[2]).cvt32();
const Xbyak::Reg32 tmp = ctx.reg_alloc.ScratchGpr().cvt32();
code.pextrw(tmp, source_vector, index / 2);
if (index % 2 == 0) {
@ -218,18 +217,17 @@ void EmitX64::EmitVectorSetElement16(EmitContext& ctx, IR::Inst* inst) {
void EmitX64::EmitVectorSetElement32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ASSERT(args[1].IsImmediate());
u8 index = args[1].GetImmediateU8();
const u8 index = args[1].GetImmediateU8();
const Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
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();
const 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();
const Xbyak::Reg32 source_elem = ctx.reg_alloc.UseScratchGpr(args[2]).cvt32();
code.pinsrw(source_vector, source_elem, index * 2);
code.shr(source_elem, 16);
@ -242,18 +240,17 @@ void EmitX64::EmitVectorSetElement32(EmitContext& ctx, IR::Inst* inst) {
void EmitX64::EmitVectorSetElement64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ASSERT(args[1].IsImmediate());
u8 index = args[1].GetImmediateU8();
const u8 index = args[1].GetImmediateU8();
const Xbyak::Xmm source_vector = ctx.reg_alloc.UseScratchXmm(args[0]);
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]);
const 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]);
const Xbyak::Reg64 source_elem = ctx.reg_alloc.UseScratchGpr(args[2]);
code.pinsrw(source_vector, source_elem.cvt32(), index * 4);
code.shr(source_elem, 16);