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shader: implement RDNA2 subvector loop mask and branch semantics

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This commit is contained in:
nmzik
2026-09-09 19:04:03 +04:00
parent 3902b42096
commit c913951f7b
11 changed files with 167 additions and 1 deletions
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src/graphics/shader/recompiler/frontend/decode/ShaderDecoder.cpp
+8 -1
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@@ -192,7 +192,9 @@ bool IsConditionalBranch(Opcode opcode) {
case Opcode::S_CBRANCH_VCCZ:
case Opcode::S_CBRANCH_VCCNZ:
case Opcode::S_CBRANCH_EXECZ:
case Opcode::S_CBRANCH_EXECNZ: return true;
case Opcode::S_CBRANCH_EXECNZ:
case Opcode::S_SUBVECTOR_LOOP_BEGIN:
case Opcode::S_SUBVECTOR_LOOP_END: return true;
default: return false;
}
}
@@ -535,6 +537,11 @@ std::string InstructionToString(const Instruction& inst) {
return WithUnsupportedReason(inst, fmt::format("0x{:08x}: {} 0x{:08x}", inst.pc,
magic_enum::enum_name(inst.opcode),
inst.branch_target));
case Opcode::S_SUBVECTOR_LOOP_BEGIN:
case Opcode::S_SUBVECTOR_LOOP_END:
return WithUnsupportedReason(inst, fmt::format(
"0x{:08x}: {} {}, 0x{:08x}", inst.pc, magic_enum::enum_name(inst.opcode),
OperandToString(inst.dst), inst.branch_target));
case Opcode::EXP: return WithUnsupportedReason(inst, FormatExp(inst));
case Opcode::IMAGE_SAMPLE:
case Opcode::IMAGE_STORE: