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[dxbc] Swap OpSelect arguments for Ne/Dne, don't use OpLogicalNot 

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Philip Rebohle 2019-10-18 03:22:20 +02:00
parent b756c229a9
commit 8211225ad4
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GPG Key ID: C8CC613427A31C99
1 changed files with 10 additions and 7 deletions
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17
src/dxbc/dxbc_compiler.cpp
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@ -1871,7 +1871,14 @@ namespace dxvk {
if (componentCount > 1)
conditionType = m_module.defVectorType(conditionType, componentCount);
bool invert = false;
switch (ins.op) {
case DxbcOpcode::Ne:
case DxbcOpcode::DNe:
invert = true;
/* fall through */
case DxbcOpcode::Eq:
case DxbcOpcode::DEq:
condition = m_module.opFOrdEqual(
@ -1890,13 +1897,6 @@ namespace dxvk {
conditionType, src.at(0).id, src.at(1).id);
break;
case DxbcOpcode::Ne:
case DxbcOpcode::DNe:
// Avoid poorly supported FUnordNotEqual
condition = m_module.opLogicalNot(conditionType,
m_module.opFOrdEqual(conditionType, src.at(0).id, src.at(1).id));
break;
case DxbcOpcode::IEq:
condition = m_module.opIEqual(
conditionType, src.at(0).id, src.at(1).id);
@ -1952,6 +1952,9 @@ namespace dxvk {
sTrue = m_module.constComposite(typeId, componentCount, vTrue .data());
}
if (invert)
std::swap(sFalse, sTrue);
// Perform component-wise mask selection
// based on the condition evaluated above.
result.id = m_module.opSelect(