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Track reads and writes to pointer parameters for each function in the Resolver, as well as accesses to module-scope variables. At function call sites, check the root identifiers of each pointer argument to determine if problematic aliasing occurs. The MSL backend passes pointers to sub-objects to functions when handling workgroup storage variables, which triggers the alias analysis. Add a validation override for this scenario. Bug: tint:1675 Change-Id: I81a40d1309df65521cc5ad39764d6a09a260f51e Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/110167 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: James Price <jrprice@google.com>
58 lines
2.4 KiB
C++
58 lines
2.4 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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#include "src/tint/ast/disable_validation_attribute.h"
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#include "src/tint/clone_context.h"
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#include "src/tint/program_builder.h"
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TINT_INSTANTIATE_TYPEINFO(tint::ast::DisableValidationAttribute);
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namespace tint::ast {
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DisableValidationAttribute::DisableValidationAttribute(ProgramID pid,
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NodeID nid,
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DisabledValidation val)
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: Base(pid, nid), validation(val) {}
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DisableValidationAttribute::~DisableValidationAttribute() = default;
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std::string DisableValidationAttribute::InternalName() const {
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switch (validation) {
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case DisabledValidation::kFunctionHasNoBody:
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return "disable_validation__function_has_no_body";
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case DisabledValidation::kBindingPointCollision:
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return "disable_validation__binding_point_collision";
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case DisabledValidation::kIgnoreAddressSpace:
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return "disable_validation__ignore_address_space";
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case DisabledValidation::kEntryPointParameter:
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return "disable_validation__entry_point_parameter";
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case DisabledValidation::kFunctionParameter:
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return "disable_validation__function_parameter";
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case DisabledValidation::kIgnoreStrideAttribute:
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return "disable_validation__ignore_stride";
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case DisabledValidation::kIgnoreInvalidPointerArgument:
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return "disable_validation__ignore_invalid_pointer_argument";
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case DisabledValidation::kIgnorePointerAliasing:
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return "disable_validation__ignore_pointer_aliasing";
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}
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return "<invalid>";
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}
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const DisableValidationAttribute* DisableValidationAttribute::Clone(CloneContext* ctx) const {
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return ctx->dst->ASTNodes().Create<DisableValidationAttribute>(
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ctx->dst->ID(), ctx->dst->AllocateNodeID(), validation);
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}
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} // namespace tint::ast
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