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IR: Add IR instruction VectorZeroUpper

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This commit is contained in:
MerryMage 2018-01-24 17:11:13 +00:00
parent da3e9a5704
commit 285fd22c30
4 changed files with 17 additions and 0 deletions
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11
src/backend_x64/emit_x64_vector.cpp
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@ -367,5 +367,16 @@ void EmitX64::EmitVectorBroadcast64(EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorZeroUpper(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
code->movq(a, a); // TODO: !IsLastUse
ctx.reg_alloc.DefineValue(inst, a);
}
} // namespace BackendX64
} // namespace Dynarmic