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shader: classify native half values with shared operand decoding

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This commit is contained in:
nmzik
2026-10-05 15:31:47 +04:00
parent 1d41ddb378
commit 7a0e1dafd7
13 changed files with 208 additions and 81 deletions
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tests/shaderCfgTests.cpp
+41
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@@ -4894,6 +4894,46 @@ void TestNewShaderRecompilerCapturedVopcSdwaCmpxClass() {
CheckSpirvBinaryValidates(result.spirv);
}
void TestVopcCmpxClassF16Decoder() {
using namespace ShaderRecompiler::Decoder;
for (const uint32_t modifier : {0x86360000u, 0x86350002u}) {
const uint32_t captured[] = {0x7d3f70f9u, modifier};
Instruction decoded;
DecodeInstruction(captured, 0, decoded);
Check(decoded.opcode == Opcode::V_CMPX_CLASS_F16 && decoded.word_count == 2 &&
decoded.dst.kind == OperandKind::ExecLo &&
decoded.src0.kind == OperandKind::Vgpr &&
decoded.src0.reg == (modifier == 0x86360000u ? 0u : 2u) &&
decoded.src0.sdwa_sel == (modifier == 0x86360000u ? 6u : 5u) &&
decoded.src0.absolute && decoded.src0.negate &&
decoded.src1.kind == OperandKind::IntegerInlineConstant &&
decoded.src1.value == 56 && decoded.src1.sdwa_sel == 6,
"captured V_CMPX_CLASS_F16 SDWA fields are incorrect");
const uint32_t shader[] = {captured[0], captured[1], EncodeSopp(0x01)};
auto result = RecompileForTest(shader, MakeCompileOptions(ShaderType::Pixel));
CheckSpirvBinaryValidates(result.spirv);
}
const uint32_t compact[] = {EncodeVopc(0x9f, 256, 1)};
const uint32_t vop3[] = {EncodeVop3Word0(0x9f, 126),
EncodeVop3Word1(256, 257, 0)};
for (auto words : {std::span<const uint32_t>(compact),
std::span<const uint32_t>(vop3)}) {
Instruction decoded;
DecodeInstruction(words, 0, decoded);
Check(decoded.opcode == Opcode::V_CMPX_CLASS_F16 &&
decoded.dst.kind == OperandKind::ExecLo && decoded.src0.reg == 0 &&
decoded.src1.kind == OperandKind::Vgpr && decoded.src1.reg == 1,
"compact/VOP3 V_CMPX_CLASS_F16 did not decode to an EXEC compare");
}
for (const uint32_t modifier : {0x86370000u, 0x87360000u}) {
const uint32_t invalid[] = {0x7d3f70f9u, modifier};
Instruction decoded;
DecodeInstruction(invalid, 0, decoded);
Check(decoded.opcode == Opcode::UNSUPPORTED && decoded.word_count == 2,
"V_CMPX_CLASS_F16 accepted reserved SDWA selector 7");
}
}
void TestNewShaderRecompilerCapturedVopcSdwaCmpxLtU16() {
using namespace ShaderRecompiler;
@@ -14830,6 +14870,7 @@ int main() {
TestSopkCompareImmediateExtension();
TestNativeStoreCompletion();
TestNewShaderRecompilerCapturedVopcSdwaCmpxClass();
TestVopcCmpxClassF16Decoder();
TestNewShaderRecompilerCapturedVopcSdwaCmpxLtU16();
TestNewShaderRecompilerIrLookupMissFailsExplicitly();
TestNewShaderRecompilerRejectsDppOn64BitCompares();