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shader_decode: Implement CSETP

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This commit is contained in:
ReinUsesLisp 2018-12-23 17:14:43 -03:00
parent 7e13e8bfcb
commit 3f1136ac6f
1 changed files with 37 additions and 14 deletions
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51
src/video_core/shader/decode/predicate_set_predicate.cpp
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@ -17,25 +17,48 @@ u32 ShaderIR::DecodePredicateSetPredicate(BasicBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
const auto opcode = OpCode::Decode(instr);
const Node op_a = GetPredicate(instr.psetp.pred12, instr.psetp.neg_pred12 != 0);
const Node op_b = GetPredicate(instr.psetp.pred29, instr.psetp.neg_pred29 != 0);
switch (opcode->get().GetId()) {
case OpCode::Id::PSETP: {
const Node op_a = GetPredicate(instr.psetp.pred12, instr.psetp.neg_pred12 != 0);
const Node op_b = GetPredicate(instr.psetp.pred29, instr.psetp.neg_pred29 != 0);
// We can't use the constant predicate as destination.
ASSERT(instr.psetp.pred3 != static_cast<u64>(Pred::UnusedIndex));
// We can't use the constant predicate as destination.
ASSERT(instr.psetp.pred3 != static_cast<u64>(Pred::UnusedIndex));
const Node second_pred = GetPredicate(instr.psetp.pred39, instr.psetp.neg_pred39 != 0);
const Node second_pred = GetPredicate(instr.psetp.pred39, instr.psetp.neg_pred39 != 0);
const OperationCode combiner = GetPredicateCombiner(instr.psetp.op);
const Node predicate = Operation(combiner, op_a, op_b);
const OperationCode combiner = GetPredicateCombiner(instr.psetp.op);
const Node predicate = Operation(combiner, op_a, op_b);
// Set the primary predicate to the result of Predicate OP SecondPredicate
SetPredicate(bb, instr.psetp.pred3, Operation(combiner, predicate, second_pred));
// Set the primary predicate to the result of Predicate OP SecondPredicate
SetPredicate(bb, instr.psetp.pred3, Operation(combiner, predicate, second_pred));
if (instr.psetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
// Set the secondary predicate to the result of !Predicate OP SecondPredicate, if enabled
SetPredicate(
bb, instr.psetp.pred0,
Operation(combiner, Operation(OperationCode::LogicalNegate, predicate), second_pred));
if (instr.psetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
// Set the secondary predicate to the result of !Predicate OP SecondPredicate, if
// enabled
SetPredicate(bb, instr.psetp.pred0,
Operation(combiner, Operation(OperationCode::LogicalNegate, predicate),
second_pred));
}
break;
}
case OpCode::Id::CSETP: {
const Node pred = GetPredicate(instr.csetp.pred39, instr.csetp.neg_pred39 != 0);
const Node condition_code = GetConditionCode(instr.csetp.cc);
const OperationCode combiner = GetPredicateCombiner(instr.csetp.op);
if (instr.csetp.pred3 != static_cast<u64>(Pred::UnusedIndex)) {
SetPredicate(bb, instr.csetp.pred3, Operation(combiner, condition_code, pred));
}
if (instr.csetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
const Node neg_cc = Operation(OperationCode::LogicalNegate, condition_code);
SetPredicate(bb, instr.csetp.pred0, Operation(combiner, neg_cc, pred));
}
break;
}
default:
UNIMPLEMENTED_MSG("Unhandled predicate instruction: {}", opcode->get().GetName());
}
return pc;