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Implement overflow flag for S_ADD_I32

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offtkp 2024-09-02 04:39:49 +03:00
parent 101aeb920d
commit 8eb6b57024
1 changed files with 7 additions and 2 deletions
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9
src/shader_recompiler/frontend/translate/scalar_alu.cpp
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@ -373,8 +373,13 @@ void Translator::S_AND_B64(NegateMode negate, const GcnInst& inst) {
void Translator::S_ADD_I32(const GcnInst& inst) {
const IR::U32 src0{GetSrc(inst.src[0])};
const IR::U32 src1{GetSrc(inst.src[1])};
SetDst(inst.dst[0], ir.IAdd(src0, src1));
// TODO: Overflow flag
const IR::U32 result{ir.IAdd(src0, src1)};
SetDst(inst.dst[0], result);
const IR::U32 sign_mask = ir.Imm32(1 << 31);
const IR::U32 sign0 = ir.BitwiseAnd(src0, sign_mask);
const IR::U32 sign1 = ir.BitwiseAnd(src1, sign_mask);
const IR::U32 signr = ir.BitwiseAnd(result, sign_mask);
ir.SetScc(ir.LogicalAnd(ir.IEqual(sign0, sign1), ir.INotEqual(sign0, signr)));
}
void Translator::S_AND_B32(const GcnInst& inst) {