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[dxbc] Track bindings with order-invariant atomic stores

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This commit is contained in:
Philip Rebohle 2025-02-15 13:34:20 +01:00 committed by Philip Rebohle
parent d94e3633dc
commit e01a6eec3e
3 changed files with 48 additions and 12 deletions
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38
src/dxbc/dxbc_analysis.cpp
View File

@ -30,26 +30,48 @@ namespace dxvk {
switch (ins.opClass) {
case DxbcInstClass::Atomic: {
const uint32_t operandId = ins.dstCount - 1;
if (ins.dst[operandId].type == DxbcOperandType::UnorderedAccessView) {
const uint32_t registerId = ins.dst[operandId].idx[0].offset;
m_analysis->uavInfos[registerId].accessAtomicOp = true;
m_analysis->uavInfos[registerId].accessFlags |= VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_SHADER_WRITE_BIT;
// Check whether the atomic operation is order-invariant
DxvkAccessOp store = DxvkAccessOp::None;
switch (ins.op) {
case DxbcOpcode::AtomicAnd: store = DxvkAccessOp::And; break;
case DxbcOpcode::AtomicOr: store = DxvkAccessOp::Or; break;
case DxbcOpcode::AtomicXor: store = DxvkAccessOp::Xor; break;
case DxbcOpcode::AtomicIAdd: store = DxvkAccessOp::Add; break;
case DxbcOpcode::AtomicIMax: store = DxvkAccessOp::IMax; break;
case DxbcOpcode::AtomicIMin: store = DxvkAccessOp::IMin; break;
case DxbcOpcode::AtomicUMax: store = DxvkAccessOp::UMax; break;
case DxbcOpcode::AtomicUMin: store = DxvkAccessOp::UMin; break;
default: break;
}
if (m_analysis->uavInfos[registerId].atomicStore == DxvkAccessOp::None)
m_analysis->uavInfos[registerId].atomicStore = store;
// Maintain ordering if the UAV is accessed via other operations as well
if (store == DxvkAccessOp::None || m_analysis->uavInfos[registerId].atomicStore != store)
m_analysis->uavInfos[registerId].nonInvariantAccess = true;
}
} break;
case DxbcInstClass::TextureSample:
case DxbcInstClass::TextureGather:
case DxbcInstClass::TextureQueryLod:
case DxbcInstClass::VectorDeriv: {
m_analysis->usesDerivatives = true;
} break;
case DxbcInstClass::ControlFlow: {
if (ins.op == DxbcOpcode::Discard)
m_analysis->usesKill = true;
} break;
case DxbcInstClass::BufferLoad: {
uint32_t operandId = ins.op == DxbcOpcode::LdStructured ? 2 : 1;
bool sparseFeedback = ins.dstCount == 2;
@ -58,16 +80,18 @@ namespace dxvk {
const uint32_t registerId = ins.src[operandId].idx[0].offset;
m_analysis->uavInfos[registerId].accessFlags |= VK_ACCESS_SHADER_READ_BIT;
m_analysis->uavInfos[registerId].sparseFeedback |= sparseFeedback;
m_analysis->uavInfos[registerId].nonInvariantAccess = true;
} else if (ins.src[operandId].type == DxbcOperandType::Resource) {
const uint32_t registerId = ins.src[operandId].idx[0].offset;
m_analysis->srvInfos[registerId].sparseFeedback |= sparseFeedback;
}
} break;
case DxbcInstClass::BufferStore: {
if (ins.dst[0].type == DxbcOperandType::UnorderedAccessView) {
const uint32_t registerId = ins.dst[0].idx[0].offset;
m_analysis->uavInfos[registerId].accessFlags |= VK_ACCESS_SHADER_WRITE_BIT;
m_analysis->uavInfos[registerId].nonInvariantAccess = true;
}
} break;
@ -75,13 +99,15 @@ namespace dxvk {
const uint32_t registerId = ins.src[1].idx[0].offset;
m_analysis->uavInfos[registerId].accessTypedLoad = true;
m_analysis->uavInfos[registerId].accessFlags |= VK_ACCESS_SHADER_READ_BIT;
m_analysis->uavInfos[registerId].nonInvariantAccess = true;
} break;
case DxbcInstClass::TypedUavStore: {
const uint32_t registerId = ins.dst[0].idx[0].offset;
m_analysis->uavInfos[registerId].accessFlags |= VK_ACCESS_SHADER_WRITE_BIT;
m_analysis->uavInfos[registerId].nonInvariantAccess = true;
} break;
default:
break;
}

8
src/dxbc/dxbc_analysis.h
View File

@ -17,9 +17,11 @@ namespace dxvk {
* will be used to generate image types.
*/
struct DxbcUavInfo {
bool accessTypedLoad = false;
bool accessAtomicOp = false;
bool sparseFeedback = false;
bool accessTypedLoad = false;
bool accessAtomicOp = false;
bool sparseFeedback = false;
bool nonInvariantAccess = false;
DxvkAccessOp atomicStore = DxvkAccessOp::None;
VkAccessFlags accessFlags = 0;
};

14
src/dxbc/dxbc_compiler.cpp
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@ -1098,6 +1098,9 @@ namespace dxvk {
: VK_DESCRIPTOR_TYPE_STORAGE_IMAGE;
binding.access = m_analysis->uavInfos[registerId].accessFlags;
if (!m_analysis->uavInfos[registerId].nonInvariantAccess)
binding.accessOp = m_analysis->uavInfos[registerId].atomicStore;
if (!(binding.access & VK_ACCESS_SHADER_WRITE_BIT))
m_module.decorate(varId, spv::DecorationNonWritable);
if (!(binding.access & VK_ACCESS_SHADER_READ_BIT))
@ -1234,9 +1237,14 @@ namespace dxvk {
: (isUav ? VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER : VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER);
binding.viewType = VK_IMAGE_VIEW_TYPE_MAX_ENUM;
binding.resourceBinding = bindingId;
binding.access = isUav
? m_analysis->uavInfos[registerId].accessFlags
: VkAccessFlags(VK_ACCESS_SHADER_READ_BIT);
binding.access = VK_ACCESS_SHADER_READ_BIT;
if (isUav) {
binding.access = m_analysis->uavInfos[registerId].accessFlags;
if (!m_analysis->uavInfos[registerId].nonInvariantAccess)
binding.accessOp = m_analysis->uavInfos[registerId].atomicStore;
}
if (useRawSsbo || isUav) {
if (!(binding.access & VK_ACCESS_SHADER_WRITE_BIT))