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Recent changes to DecomposeMemoryAccess meant we lost the dependency information between the user of a module-scope variable of the storage / uniform address space and the variable. Add dependency information to ast::InternalAttribute so this can be tracked. This change also means that symbol renaming after the DecomposeMemoryAccess should work. Fixed: tint:1860 Change-Id: Icfa2925f95c2ac50702522df514cd11bde727546 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/122660 Reviewed-by: James Price <jrprice@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
135 lines
4.2 KiB
C++
135 lines
4.2 KiB
C++
// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_TINT_TRANSFORM_DECOMPOSE_MEMORY_ACCESS_H_
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#define SRC_TINT_TRANSFORM_DECOMPOSE_MEMORY_ACCESS_H_
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#include <string>
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#include "src/tint/ast/internal_attribute.h"
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#include "src/tint/transform/transform.h"
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// Forward declarations
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namespace tint {
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class CloneContext;
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} // namespace tint
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namespace tint::transform {
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/// DecomposeMemoryAccess is a transform used to replace storage and uniform buffer accesses with a
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/// combination of load, store or atomic functions on primitive types.
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class DecomposeMemoryAccess final : public Castable<DecomposeMemoryAccess, Transform> {
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public:
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/// Intrinsic is an InternalAttribute that's used to decorate a stub function so that the HLSL
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/// transforms this into calls to
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/// `[RW]ByteAddressBuffer.Load[N]()` or `[RW]ByteAddressBuffer.Store[N]()`,
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/// with a possible cast.
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class Intrinsic final : public Castable<Intrinsic, ast::InternalAttribute> {
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public:
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/// Intrinsic op
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enum class Op {
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kLoad,
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kStore,
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kAtomicLoad,
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kAtomicStore,
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kAtomicAdd,
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kAtomicSub,
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kAtomicMax,
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kAtomicMin,
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kAtomicAnd,
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kAtomicOr,
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kAtomicXor,
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kAtomicExchange,
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kAtomicCompareExchangeWeak,
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};
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/// Intrinsic data type
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enum class DataType {
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kU32,
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kF32,
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kI32,
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kF16,
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kVec2U32,
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kVec2F32,
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kVec2I32,
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kVec2F16,
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kVec3U32,
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kVec3F32,
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kVec3I32,
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kVec3F16,
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kVec4U32,
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kVec4F32,
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kVec4I32,
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kVec4F16,
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};
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/// Constructor
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/// @param pid the identifier of the program that owns this node
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/// @param nid the unique node identifier
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/// @param o the op of the intrinsic
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/// @param type the data type of the intrinsic
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/// @param address_space the address space of the buffer
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/// @param buffer the storage or uniform buffer identifier
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Intrinsic(ProgramID pid,
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ast::NodeID nid,
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Op o,
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DataType type,
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builtin::AddressSpace address_space,
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const ast::IdentifierExpression* buffer);
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/// Destructor
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~Intrinsic() override;
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/// @return a short description of the internal attribute which will be
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/// displayed as `@internal(<name>)`
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std::string InternalName() const override;
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/// Performs a deep clone of this object using the CloneContext `ctx`.
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/// @param ctx the clone context
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/// @return the newly cloned object
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const Intrinsic* Clone(CloneContext* ctx) const override;
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/// @return true if op is atomic
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bool IsAtomic() const;
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/// @return the buffer that this intrinsic operates on
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const ast::IdentifierExpression* Buffer() const;
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/// The op of the intrinsic
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const Op op;
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/// The type of the intrinsic
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const DataType type;
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/// The address space of the buffer this intrinsic operates on
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const builtin::AddressSpace address_space;
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};
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/// Constructor
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DecomposeMemoryAccess();
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/// Destructor
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~DecomposeMemoryAccess() override;
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/// @copydoc Transform::Apply
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ApplyResult Apply(const Program* program,
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const DataMap& inputs,
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DataMap& outputs) const override;
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private:
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struct State;
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};
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} // namespace tint::transform
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#endif // SRC_TINT_TRANSFORM_DECOMPOSE_MEMORY_ACCESS_H_
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