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[dxbc] Removed branches around texture sample/gather ops

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Not needed anymore thanks to dummy resources serving the same purpose.
This commit is contained in:
Philip Rebohle 2018-01-27 19:31:08 +01:00
parent d1f76b96af
commit 2e1e8d56a5
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GPG Key ID: C8CC613427A31C99
1 changed files with 2 additions and 76 deletions
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78
src/dxbc/dxbc_compiler.cpp
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@ -2479,15 +2479,6 @@ namespace dxvk {
imageLayerDim, offsetIds.data());
}
// Only execute the gather operation if the resource is bound
const uint32_t labelMerge = m_module.allocateId();
const uint32_t labelBound = m_module.allocateId();
const uint32_t labelUnbound = m_module.allocateId();
m_module.opSelectionMerge(labelMerge, spv::SelectionControlMaskNone);
m_module.opBranchConditional(m_textures.at(textureId).specId, labelBound, labelUnbound);
m_module.opLabel(labelBound);
// Combine the texture and the sampler into a sampled image
const uint32_t sampledImageId = m_module.opSampledImage(
sampledImageType,
@ -2531,35 +2522,7 @@ namespace dxvk {
result = emitRegisterSwizzle(result,
textureReg.swizzle, ins.dst[0].mask);
// If the texture is not bound, return zeroes
m_module.opBranch(labelMerge);
m_module.opLabel(labelUnbound);
DxbcRegisterValue zeroes = [&] {
switch (result.type.ctype) {
case DxbcScalarType::Float32: return emitBuildConstVecf32(0.0f, 0.0f, 0.0f, 0.0f, ins.dst[0].mask);
case DxbcScalarType::Uint32: return emitBuildConstVecu32(0u, 0u, 0u, 0u, ins.dst[0].mask);
case DxbcScalarType::Sint32: return emitBuildConstVeci32(0, 0, 0, 0, ins.dst[0].mask);
default: throw DxvkError("DxbcCompiler: Invalid scalar type");
}
}();
m_module.opBranch(labelMerge);
m_module.opLabel(labelMerge);
// Merge the result with a phi function
const std::array<SpirvPhiLabel, 2> phiLabels = {{
{ result.id, labelBound },
{ zeroes.id, labelUnbound },
}};
DxbcRegisterValue mergedResult;
mergedResult.type = result.type;
mergedResult.id = m_module.opPhi(
getVectorTypeId(mergedResult.type),
phiLabels.size(), phiLabels.data());
emitRegisterStore(ins.dst[0], mergedResult);
emitRegisterStore(ins.dst[0], result);
}
@ -2650,15 +2613,6 @@ namespace dxvk {
imageLayerDim, offsetIds.data());
}
// Only execute the sample operation if the resource is bound
const uint32_t labelMerge = m_module.allocateId();
const uint32_t labelBound = m_module.allocateId();
const uint32_t labelUnbound = m_module.allocateId();
m_module.opSelectionMerge(labelMerge, spv::SelectionControlMaskNone);
m_module.opBranchConditional(m_textures.at(textureId).specId, labelBound, labelUnbound);
m_module.opLabel(labelBound);
// Combine the texture and the sampler into a sampled image
const uint32_t sampledImageId = m_module.opSampledImage(
sampledImageType,
@ -2746,35 +2700,7 @@ namespace dxvk {
textureReg.swizzle, ins.dst[0].mask);
}
// If the texture is not bound, return zeroes
m_module.opBranch(labelMerge);
m_module.opLabel(labelUnbound);
DxbcRegisterValue zeroes = [&] {
switch (result.type.ctype) {
case DxbcScalarType::Float32: return emitBuildConstVecf32(0.0f, 0.0f, 0.0f, 0.0f, ins.dst[0].mask);
case DxbcScalarType::Uint32: return emitBuildConstVecu32(0u, 0u, 0u, 0u, ins.dst[0].mask);
case DxbcScalarType::Sint32: return emitBuildConstVeci32(0, 0, 0, 0, ins.dst[0].mask);
default: throw DxvkError("DxbcCompiler: Invalid scalar type");
}
}();
m_module.opBranch(labelMerge);
m_module.opLabel(labelMerge);
// Merge the result with a phi function
const std::array<SpirvPhiLabel, 2> phiLabels = {{
{ result.id, labelBound },
{ zeroes.id, labelUnbound },
}};
DxbcRegisterValue mergedResult;
mergedResult.type = result.type;
mergedResult.id = m_module.opPhi(
getVectorTypeId(mergedResult.type),
phiLabels.size(), phiLabels.data());
emitRegisterStore(ins.dst[0], mergedResult);
emitRegisterStore(ins.dst[0], result);
}