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IR: Implement VectorZeroExtend

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This commit is contained in:
MerryMage 2018-02-10 10:28:38 +00:00
parent d3a4e1efe2
commit 59ace60b03
4 changed files with 61 additions and 0 deletions
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41
src/backend_x64/emit_x64_vector.cpp
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@ -634,6 +634,47 @@ void EmitX64::EmitVectorLogicalShiftLeft64(EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.DefineValue(inst, result);
}
static void EmitVectorZeroExtend(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, int size) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm zeros = ctx.reg_alloc.ScratchXmm();
code.pxor(zeros, zeros);
switch (size) {
case 8:
code.punpcklbw(a, zeros);
break;
case 16:
code.punpcklwd(a, zeros);
break;
case 32:
code.punpckldq(a, zeros);
break;
case 64:
code.punpcklqdq(a, zeros);
break;
}
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorZeroExtend8(EmitContext& ctx, IR::Inst* inst) {
EmitVectorZeroExtend(code, ctx, inst, 8);
}
void EmitX64::EmitVectorZeroExtend16(EmitContext& ctx, IR::Inst* inst) {
EmitVectorZeroExtend(code, ctx, inst, 16);
}
void EmitX64::EmitVectorZeroExtend32(EmitContext& ctx, IR::Inst* inst) {
EmitVectorZeroExtend(code, ctx, inst, 32);
}
void EmitX64::EmitVectorZeroExtend64(EmitContext& ctx, IR::Inst* inst) {
EmitVectorZeroExtend(code, ctx, inst, 64);
}
void EmitX64::EmitVectorZeroUpper(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);