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author | Fernando Sahmkow <fsahmkow27@gmail.com> | 2019-07-20 23:25:08 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2019-07-20 23:25:08 +0200 |
commit | 0a67416971c15b205f61e5db4ec5955b49638774 (patch) | |
tree | b4e2498af98cfa334b801b5b71263a0330579cc0 /src/video_core/shader/decode | |
parent | Update README.md (diff) | |
parent | shader/half_set_predicate: Fix HSETP2 implementation (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/video_core/shader/decode/half_set_predicate.cpp | 69 |
1 files changed, 41 insertions, 28 deletions
diff --git a/src/video_core/shader/decode/half_set_predicate.cpp b/src/video_core/shader/decode/half_set_predicate.cpp index d59d15bd8..ad180d6df 100644 --- a/src/video_core/shader/decode/half_set_predicate.cpp +++ b/src/video_core/shader/decode/half_set_predicate.cpp @@ -23,38 +23,51 @@ u32 ShaderIR::DecodeHalfSetPredicate(NodeBlock& bb, u32 pc) { Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.hsetp2.type_a); op_a = GetOperandAbsNegHalf(op_a, instr.hsetp2.abs_a, instr.hsetp2.negate_a); - Node op_b = [&]() { - switch (opcode->get().GetId()) { - case OpCode::Id::HSETP2_R: - return GetOperandAbsNegHalf(GetRegister(instr.gpr20), instr.hsetp2.abs_a, - instr.hsetp2.negate_b); - default: - UNREACHABLE(); - return Immediate(0); - } - }(); - op_b = UnpackHalfFloat(op_b, instr.hsetp2.type_b); - - // We can't use the constant predicate as destination. - ASSERT(instr.hsetp2.pred3 != static_cast<u64>(Pred::UnusedIndex)); - - const Node second_pred = GetPredicate(instr.hsetp2.pred39, instr.hsetp2.neg_pred != 0); + Tegra::Shader::PredCondition cond{}; + bool h_and{}; + Node op_b{}; + switch (opcode->get().GetId()) { + case OpCode::Id::HSETP2_C: + cond = instr.hsetp2.cbuf_and_imm.cond; + h_and = instr.hsetp2.cbuf_and_imm.h_and; + op_b = GetOperandAbsNegHalf(GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset), + instr.hsetp2.cbuf.abs_b, instr.hsetp2.cbuf.negate_b); + break; + case OpCode::Id::HSETP2_IMM: + cond = instr.hsetp2.cbuf_and_imm.cond; + h_and = instr.hsetp2.cbuf_and_imm.h_and; + op_b = UnpackHalfImmediate(instr, true); + break; + case OpCode::Id::HSETP2_R: + cond = instr.hsetp2.reg.cond; + h_and = instr.hsetp2.reg.h_and; + op_b = + UnpackHalfFloat(GetOperandAbsNegHalf(GetRegister(instr.gpr20), instr.hsetp2.reg.abs_b, + instr.hsetp2.reg.negate_b), + instr.hsetp2.reg.type_b); + break; + default: + UNREACHABLE(); + op_b = Immediate(0); + } const OperationCode combiner = GetPredicateCombiner(instr.hsetp2.op); - const OperationCode pair_combiner = - instr.hsetp2.h_and ? OperationCode::LogicalAll2 : OperationCode::LogicalAny2; - - const Node comparison = GetPredicateComparisonHalf(instr.hsetp2.cond, op_a, op_b); - const Node first_pred = Operation(pair_combiner, comparison); + const Node pred39 = GetPredicate(instr.hsetp2.pred39, instr.hsetp2.neg_pred); - // Set the primary predicate to the result of Predicate OP SecondPredicate - const Node value = Operation(combiner, first_pred, second_pred); - SetPredicate(bb, instr.hsetp2.pred3, value); + const auto Write = [&](u64 dest, Node src) { + SetPredicate(bb, dest, Operation(combiner, std::move(src), pred39)); + }; - if (instr.hsetp2.pred0 != static_cast<u64>(Pred::UnusedIndex)) { - // Set the secondary predicate to the result of !Predicate OP SecondPredicate, if enabled - const Node negated_pred = Operation(OperationCode::LogicalNegate, first_pred); - SetPredicate(bb, instr.hsetp2.pred0, Operation(combiner, negated_pred, second_pred)); + const Node comparison = GetPredicateComparisonHalf(cond, op_a, op_b); + const u64 first = instr.hsetp2.pred0; + const u64 second = instr.hsetp2.pred3; + if (h_and) { + const Node joined = Operation(OperationCode::LogicalAnd2, comparison); + Write(first, joined); + Write(second, Operation(OperationCode::LogicalNegate, joined)); + } else { + Write(first, Operation(OperationCode::LogicalPick2, comparison, Immediate(0u))); + Write(second, Operation(OperationCode::LogicalPick2, comparison, Immediate(1u))); } return pc; |