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shader: implement RDNA2 FP64 equality comparisons

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Co-authored-by: Senaxx <michelbeld@gmail.com>
Co-authored-by: Ali Almohaya <AliAlmohaya@gmail.com>
This commit is contained in:
nmzik
2026-10-01 09:48:26 +04:00
parent 64dcbe0ea1
commit 581dad7dd3
8 changed files with 125 additions and 4 deletions
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src/graphics/shader/recompiler/frontend/translate/Compare.cpp
+5 -3
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@@ -40,11 +40,13 @@ void Translator::EmitInteger16Compare(const Decoder::Instruction& inst, IR::Valu
void Translator::EmitFloatCompare(const Decoder::Instruction& inst, IR::ValueOpcode opcode,
bool half, bool cmpx) {
const auto type = IR::ArgTypeOf(opcode, 0);
const auto lhs =
half ? IR::Value(ReadF16AsF32(inst.src0)) : ReadOperand(inst.src0, IR::Type::F32);
half ? IR::Value(ReadF16AsF32(inst.src0)) : ReadOperand(inst.src0, type);
const auto rhs =
half ? IR::Value(ReadF16AsF32(inst.src1)) : ReadOperand(inst.src1, IR::Type::F32);
const IR::FPCompareFlags flags{.flush_input_denorms = !half && flush_f32_inputs};
half ? IR::Value(ReadF16AsF32(inst.src1)) : ReadOperand(inst.src1, type);
const IR::FPCompareFlags flags{
.flush_input_denorms = !half && type == IR::Type::F32 && flush_f32_inputs};
EmitCompareResult(inst, IR::U1(ir.Emit(opcode, {lhs, rhs}, flags)), false, cmpx);
}