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Scalar kill ops

This commit is contained in:
Dr. Chat 2016-02-21 16:17:43 -06:00
parent e78537571f
commit 9b805b929e
1 changed files with 79 additions and 5 deletions
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84
src/xenia/gpu/spirv_shader_translator.cc
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@ -831,6 +831,10 @@ void SpirvShaderTranslator::ProcessScalarAluInstruction(
}
}
Id pred_cond =
b.createBinOp(spv::Op::OpLogicalEqual, bool_type_, b.createLoad(p0_),
b.makeBoolConstant(instr.predicate_condition));
switch (instr.scalar_opcode) {
case AluScalarOpcode::kAdds:
case AluScalarOpcode::kAddsc0:
@ -852,6 +856,81 @@ void SpirvShaderTranslator::ProcessScalarAluInstruction(
{sources[0]});
} break;
case AluScalarOpcode::kKillsEq: {
auto continue_block = &b.makeNewBlock();
auto kill_block = &b.makeNewBlock();
auto cond = b.createBinOp(spv::Op::OpFOrdEqual, bool_type_, sources[0],
b.makeFloatConstant(0.f));
cond = b.createBinOp(spv::Op::OpLogicalAnd, bool_type_, cond, pred_cond);
b.createConditionalBranch(cond, kill_block, continue_block);
b.setBuildPoint(kill_block);
b.createNoResultOp(spv::Op::OpKill);
b.setBuildPoint(continue_block);
dest = b.makeFloatConstant(0.f);
} break;
case AluScalarOpcode::kKillsGe: {
auto continue_block = &b.makeNewBlock();
auto kill_block = &b.makeNewBlock();
auto cond = b.createBinOp(spv::Op::OpFOrdGreaterThanEqual, bool_type_,
sources[0], b.makeFloatConstant(0.f));
cond = b.createBinOp(spv::Op::OpLogicalAnd, bool_type_, cond, pred_cond);
b.createConditionalBranch(cond, kill_block, continue_block);
b.setBuildPoint(kill_block);
b.createNoResultOp(spv::Op::OpKill);
b.setBuildPoint(continue_block);
dest = b.makeFloatConstant(0.f);
} break;
case AluScalarOpcode::kKillsGt: {
auto continue_block = &b.makeNewBlock();
auto kill_block = &b.makeNewBlock();
auto cond = b.createBinOp(spv::Op::OpFOrdGreaterThan, bool_type_,
sources[0], b.makeFloatConstant(0.f));
cond = b.createBinOp(spv::Op::OpLogicalAnd, bool_type_, cond, pred_cond);
b.createConditionalBranch(cond, kill_block, continue_block);
b.setBuildPoint(kill_block);
b.createNoResultOp(spv::Op::OpKill);
b.setBuildPoint(continue_block);
dest = b.makeFloatConstant(0.f);
} break;
case AluScalarOpcode::kKillsNe: {
auto continue_block = &b.makeNewBlock();
auto kill_block = &b.makeNewBlock();
auto cond = b.createBinOp(spv::Op::OpFOrdNotEqual, bool_type_, sources[0],
b.makeFloatConstant(0.f));
cond = b.createBinOp(spv::Op::OpLogicalAnd, bool_type_, cond, pred_cond);
b.createConditionalBranch(cond, kill_block, continue_block);
b.setBuildPoint(kill_block);
b.createNoResultOp(spv::Op::OpKill);
b.setBuildPoint(continue_block);
dest = b.makeFloatConstant(0.f);
} break;
case AluScalarOpcode::kKillsOne: {
auto continue_block = &b.makeNewBlock();
auto kill_block = &b.makeNewBlock();
auto cond = b.createBinOp(spv::Op::OpFOrdEqual, bool_type_, sources[0],
b.makeFloatConstant(1.f));
cond = b.createBinOp(spv::Op::OpLogicalAnd, bool_type_, cond, pred_cond);
b.createConditionalBranch(cond, kill_block, continue_block);
b.setBuildPoint(kill_block);
b.createNoResultOp(spv::Op::OpKill);
b.setBuildPoint(continue_block);
dest = b.makeFloatConstant(0.f);
} break;
case AluScalarOpcode::kMaxs: {
// dest = max(src0, src1)
dest = CreateGlslStd450InstructionCall(
@ -1026,13 +1105,8 @@ void SpirvShaderTranslator::ProcessScalarAluInstruction(
if (dest) {
// If predicated, discard the result from the instruction.
Id pred_cond = 0;
Id ps_dest = dest;
if (instr.is_predicated) {
pred_cond =
b.createBinOp(spv::Op::OpLogicalEqual, bool_type_, b.createLoad(p0_),
b.makeBoolConstant(instr.predicate_condition));
ps_dest = b.createTriOp(spv::Op::OpSelect, float_type_, pred_cond, dest,
b.createLoad(ps_));
}