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refactor(shader): centralize opcode metadata and lookup paths

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This commit is contained in:
nmzik
2026-08-05 01:40:08 +02:00
parent e6b4707a5d
commit 0a2f4814ac
16 changed files with 689 additions and 964 deletions
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src/graphics/shader/recompiler/ir/ShaderIR.cpp
+17 -11
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@@ -490,13 +490,26 @@ bool IsScalarMinMaxOpcode(Decoder::Opcode opcode) {
}
}
bool ResolveIrOpcode(Decoder::Opcode decoded, Opcode& lowered, std::string* error) {
const auto opcode = LookupIrOpcode(decoded);
if (!opcode.has_value()) {
if (error != nullptr) {
*error = fmt::format("decoded opcode has no IR lowering: {}",
Decoder::OpcodeToString(decoded));
}
return false;
}
lowered = *opcode;
return true;
}
bool LowerScalarMinMaxWithScc(const Decoder::Instruction& decoded, BasicBlock& block,
std::string* error) {
Instruction result;
result.pc = decoded.pc;
result.op = LookupIrOpcode(decoded.opcode);
result.src_count = 2;
if (!LowerRegisterOperand(decoded.dst, result.dst, error) ||
if (!ResolveIrOpcode(decoded.opcode, result.op, error) ||
!LowerRegisterOperand(decoded.dst, result.dst, error) ||
!LowerSourceOperand(decoded.src0, result.src[0], error) ||
!LowerSourceOperand(decoded.src1, result.src[1], error)) {
return false;
@@ -1116,23 +1129,16 @@ bool LowerDecodedInstruction(const Decoder::Instruction& inst, BasicBlock& block
if (VectorByteConvertIndex(inst.opcode) <= 3u) {
return LowerVectorByteConvert(inst, block, error);
}
if (!IsImplemented(inst.opcode)) {
if (error != nullptr) {
*error = fmt::format("decoded opcode has no IR lowering yet: {}",
Decoder::InstructionToString(inst).c_str());
}
return false;
}
return LowerImplemented(inst, block, error);
}
bool LowerImplemented(const Decoder::Instruction& decoded, BasicBlock& block, std::string* error) {
Instruction inst;
inst.pc = decoded.pc;
inst.op = LookupIrOpcode(decoded.opcode);
inst.src_count = decoded.src_count;
if (!LowerRegisterOperand(decoded.dst, inst.dst, error)) {
if (!ResolveIrOpcode(decoded.opcode, inst.op, error) ||
!LowerRegisterOperand(decoded.dst, inst.dst, error)) {
return false;
}
ApplyDppDestinationMask(decoded, inst.dst);