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Fix V_ADDC_U32 carry-out edge cases

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offtkp 2025-07-06 22:10:09 +03:00
parent 78cb5334cf
commit 0845fe2b2b
1 changed files with 5 additions and 4 deletions
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9
src/shader_recompiler/frontend/translate/vector_alu.cpp
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@ -623,12 +623,13 @@ void Translator::V_ADDC_U32(const GcnInst& inst) {
const IR::U32 src0{GetSrc(inst.src[0])};
const IR::U32 src1{GetSrc(inst.src[1])};
const IR::U32 carry{GetCarryIn(inst)};
const IR::U32 result{ir.IAdd(ir.IAdd(src0, src1), carry)};
const IR::U32 temp{ir.IAdd(src0, src1)};
const IR::U32 result{ir.IAdd(temp, carry)};
SetDst(inst.dst[0], result);
const IR::U1 less_src0{ir.ILessThan(result, src0, false)};
const IR::U1 less_src1{ir.ILessThan(result, src1, false)};
const IR::U1 did_overflow{ir.LogicalOr(less_src0, less_src1)};
const IR::U1 less_1{ir.ILessThan(temp, src0, false)};
const IR::U1 less_2{ir.ILessThan(result, carry, false)};
const IR::U1 did_overflow{ir.LogicalOr(less_1, less_2)};
SetCarryOut(inst, did_overflow);
}