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shader: share direct and conditional branch classification

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This commit is contained in:
nmzik
2026-09-09 18:56:56 +04:00
parent ae573f941a
commit 3902b42096
4 changed files with 26 additions and 52 deletions
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src/graphics/shader/recompiler/frontend/cfg/ShaderCFG.cpp
+3 -23
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@@ -52,26 +52,6 @@ uint32_t ProgramEndPc(const Decoder::Program& program) {
return InstructionEndPc(program.instructions.back());
}
bool IsUnconditionalBranch(Opcode opcode) {
return opcode == Opcode::S_BRANCH;
}
bool IsConditionalBranch(Opcode opcode) {
switch (opcode) {
case Opcode::S_CBRANCH_SCC0:
case Opcode::S_CBRANCH_SCC1:
case Opcode::S_CBRANCH_VCCZ:
case Opcode::S_CBRANCH_VCCNZ:
case Opcode::S_CBRANCH_EXECZ:
case Opcode::S_CBRANCH_EXECNZ: return true;
default: return false;
}
}
bool IsBranch(Opcode opcode) {
return IsUnconditionalBranch(opcode) || IsConditionalBranch(opcode);
}
BranchCondition ConditionForOpcode(Opcode opcode) {
switch (opcode) {
case Opcode::S_BRANCH: return BranchCondition::Always;
@@ -1925,7 +1905,7 @@ Graph BuildGraph(const Decoder::Program& program) {
for (uint32_t i = 0; i < program.instructions.size(); i++) {
const auto& inst = program.instructions[i];
const auto next_pc = InstructionEndPc(inst);
if (IsBranch(inst.opcode)) {
if (Decoder::IsDirectBranch(inst.opcode)) {
if (!IsValidTarget(inst.branch_target, instruction_pcs, first_pc, end_pc)) {
ExitBuildFailure(graph, FailureKind::InvalidBranchTarget, UINT32_MAX,
fmt::format("branch at pc 0x{:08x} targets invalid pc 0x{:08x}",
@@ -2032,11 +2012,11 @@ Graph BuildGraph(const Decoder::Program& program) {
block.terminator.condition = BranchCondition::Always;
block.terminator.true_block = pc_to_block.at(target_info.target);
}
} else if (IsUnconditionalBranch(last.opcode)) {
} else if (last.opcode == Opcode::S_BRANCH) {
block.terminator.kind = TerminatorKind::Branch;
block.terminator.condition = BranchCondition::Always;
block.terminator.true_block = pc_to_block.at(last.branch_target);
} else if (IsConditionalBranch(last.opcode)) {
} else if (Decoder::IsConditionalBranch(last.opcode)) {
block.terminator.kind = TerminatorKind::ConditionalBranch;
block.terminator.condition = ConditionForOpcode(last.opcode);
block.terminator.true_block = pc_to_block.at(last.branch_target);