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emit_x64_packed: Do not use XmmBConst here

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Broadcasting is inappropriate
This commit is contained in:
Merry 2022-07-27 20:14:49 +01:00
parent 2d4602a651
commit fbdcfeab99
1 changed files with 5 additions and 5 deletions
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10
src/dynarmic/backend/x64/emit_x64_packed.cpp
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@ -94,8 +94,8 @@ void EmitX64::EmitPackedAddU16(EmitContext& ctx, IR::Inst* inst) {
// !(b <= a+b) == b > a+b
code.movdqa(tmp_a, xmm_a);
code.movdqa(tmp_b, xmm_b);
code.paddw(tmp_a, code.XmmBConst<16>(xword, 0x8000));
code.paddw(tmp_b, code.XmmBConst<16>(xword, 0x8000));
code.paddw(tmp_a, code.XmmConst(xword, 0x80008000, 0));
code.paddw(tmp_b, code.XmmConst(xword, 0x80008000, 0));
code.pcmpgtw(tmp_b, tmp_a); // *Signed* comparison!
ctx.reg_alloc.DefineValue(ge_inst, tmp_b);
@ -217,8 +217,8 @@ void EmitX64::EmitPackedSubU16(EmitContext& ctx, IR::Inst* inst) {
// (a >= b) == !(b > a)
code.pcmpeqb(ones, ones);
code.paddw(xmm_a, code.XmmBConst<16>(xword, 0x8000));
code.paddw(xmm_b, code.XmmBConst<16>(xword, 0x8000));
code.paddw(xmm_a, code.XmmConst(xword, 0x80008000, 0));
code.paddw(xmm_b, code.XmmConst(xword, 0x80008000, 0));
code.movdqa(xmm_ge, xmm_b);
code.pcmpgtw(xmm_ge, xmm_a); // *Signed* comparison!
code.pxor(xmm_ge, ones);
@ -654,7 +654,7 @@ void EmitX64::EmitPackedAbsDiffSumS8(EmitContext& ctx, IR::Inst* inst) {
const Xbyak::Xmm tmp = ctx.reg_alloc.ScratchXmm();
// TODO: Optimize with zero-extension detection
code.movaps(tmp, code.XmmBConst<8>(xword, 0xFF));
code.movaps(tmp, code.XmmConst(xword, 0x0000'0000'ffff'ffff, 0));
code.pand(xmm_a, tmp);
code.pand(xmm_b, tmp);
code.psadbw(xmm_a, xmm_b);