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shader: compute add-with-carry with compares and remove IAddCarry32

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This commit is contained in:
nmzik
2026-10-21 22:28:11 +02:00
parent c571d8ed5a
commit 6e5167598e
8 changed files with 17 additions and 50 deletions
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tests/ScalarProvenanceTests.cpp
+3 -6
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@@ -237,12 +237,9 @@ void TestShaderBaseAndUserData() {
void TestCarryAndBitFields() {
Fixture fixture;
const auto carry =
fixture.Emit(ValueOpcode::IAddCarry32, {Value(0xffffffffu), Value(2u)});
const auto low =
fixture.Emit(ValueOpcode::CompositeExtractU32x2, {carry, Value(0u)});
const auto high =
fixture.Emit(ValueOpcode::CompositeExtractU32x2, {carry, Value(1u)});
const auto low = fixture.Emit(ValueOpcode::IAdd32, {Value(0xffffffffu), Value(2u)});
const auto carry = fixture.Emit(ValueOpcode::ULessThan32, {low, Value(0xffffffffu)});
const auto high = fixture.Emit(ValueOpcode::SelectU32, {carry, Value(1u), Value(0u)});
const auto inserted =
fixture.Emit(ValueOpcode::BitFieldInsert,
{Value(0u), Value(0x89abcdefu), Value(0u), Value(32u)});
tests/ShaderRecompilerComputeTests.cpp
+1 -1
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@@ -25806,7 +25806,7 @@ TestCase VectorAddcWritesPerLaneCarryOut() {
O::S_ENDPGM};
test.decoded_counts = {
{"V_ADDC_U32 v2, vcc_lo, 0, v26.sdwa(sel=4,sext=1), vcc_lo", 1}};
test.ir_counts = {{" = BitFieldSExtract ", 1}, {" = IAddCarry32 ", 2}};
test.ir_counts = {{" = BitFieldSExtract ", 1}, {" = ULessThan32 ", 3}};
test.required_spirv = {"OpBitFieldSExtract"};
test.compute_info.threads_num[0] = 4;
test.compute_info.threads_num[1] = 1;
tests/shaderCfgTests.cpp
+1 -1
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@@ -15144,7 +15144,7 @@ void TestTypedDescriptorRealCarryAndScalarLoads() {
ValueDependsOn(carry_source->dwords[1],
ShaderRecompiler::IR::ValueOpcode::GetShaderBase) &&
ValueDependsOn(carry_source->dwords[1],
ShaderRecompiler::IR::ValueOpcode::IAddCarry32),
ShaderRecompiler::IR::ValueOpcode::ULessThan32),
"real s_add_u32/s_addc_u32 translation lost SCC carry provenance");
std::array<uint32_t, 64> carry_user_data{};
const uint64_t shader_base = 0x00000012fffffffbull;