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https://github.com/encounter/dawn-cmake.git
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9b54a2e53c
This change implements pointers and references as described by the WGSL specification change in https://github.com/gpuweb/gpuweb/pull/1569. reader/spirv: * Now emits address-of `&expr` and indirection `*expr` operators as needed. * As an identifier may now resolve to a pointer or reference type depending on whether the declaration is a `var`, `let` or parameter, `Function::identifier_values_` has been changed from an ID set to an ID -> Type* map. resolver: * Now correctly resolves all expressions to either a value type, reference type or pointer type. * Validates pointer / reference rules on assignment, `var` and `let` construction, and usage. * Handles the address-of and indirection operators. * No longer does any implicit loads of pointer types. * Storage class validation is still TODO (crbug.com/tint/809) writer/spirv: * Correctly handles variables and expressions of pointer and reference types, emitting OpLoads where necessary. test: * Lots of new test cases Fixed: tint:727 Change-Id: I77d3281590e35e5a3122f5b74cdeb71a6fe51f74 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50740 Commit-Queue: Ben Clayton <bclayton@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: David Neto <dneto@google.com>
138 lines
3.4 KiB
C++
138 lines
3.4 KiB
C++
// Copyright 2020 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/sem/type.h"
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#include "src/sem/bool_type.h"
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#include "src/sem/f32_type.h"
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#include "src/sem/i32_type.h"
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#include "src/sem/matrix_type.h"
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#include "src/sem/pointer_type.h"
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#include "src/sem/reference_type.h"
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#include "src/sem/sampler_type.h"
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#include "src/sem/texture_type.h"
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#include "src/sem/u32_type.h"
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#include "src/sem/vector_type.h"
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TINT_INSTANTIATE_TYPEINFO(tint::sem::Type);
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namespace tint {
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namespace sem {
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Type::Type() = default;
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Type::Type(Type&&) = default;
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Type::~Type() = default;
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const Type* Type::UnwrapPtr() const {
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auto* type = this;
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while (auto* ptr = type->As<sem::Pointer>()) {
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type = ptr->StoreType();
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}
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return type;
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}
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const Type* Type::UnwrapRef() const {
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auto* type = this;
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if (auto* ref = type->As<sem::Reference>()) {
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type = ref->StoreType();
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}
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return type;
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}
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const Type* Type::UnwrapAccess() const {
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// TODO(amaiorano): Delete this function
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auto* type = this;
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return type;
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}
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bool Type::is_scalar() const {
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return IsAnyOf<F32, U32, I32, Bool>();
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}
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bool Type::is_numeric_scalar() const {
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return IsAnyOf<F32, U32, I32>();
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}
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bool Type::is_float_scalar() const {
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return Is<F32>();
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}
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bool Type::is_float_matrix() const {
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return Is<Matrix>(
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[](const Matrix* m) { return m->type()->is_float_scalar(); });
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}
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bool Type::is_float_vector() const {
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return Is<Vector>(
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[](const Vector* v) { return v->type()->is_float_scalar(); });
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}
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bool Type::is_float_scalar_or_vector() const {
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return is_float_scalar() || is_float_vector();
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}
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bool Type::is_float_scalar_or_vector_or_matrix() const {
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return is_float_scalar() || is_float_vector() || is_float_matrix();
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}
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bool Type::is_integer_scalar() const {
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return IsAnyOf<U32, I32>();
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}
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bool Type::is_unsigned_integer_vector() const {
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return Is<Vector>([](const Vector* v) { return v->type()->Is<U32>(); });
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}
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bool Type::is_signed_integer_vector() const {
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return Is<Vector>([](const Vector* v) { return v->type()->Is<I32>(); });
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}
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bool Type::is_unsigned_scalar_or_vector() const {
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return Is<U32>() || is_unsigned_integer_vector();
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}
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bool Type::is_signed_scalar_or_vector() const {
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return Is<I32>() || is_signed_integer_vector();
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}
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bool Type::is_integer_scalar_or_vector() const {
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return is_unsigned_scalar_or_vector() || is_signed_scalar_or_vector();
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}
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bool Type::is_bool_vector() const {
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return Is<Vector>([](const Vector* v) { return v->type()->Is<Bool>(); });
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}
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bool Type::is_bool_scalar_or_vector() const {
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return Is<Bool>() || is_bool_vector();
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}
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bool Type::is_numeric_vector() const {
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return Is<Vector>(
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[](const Vector* v) { return v->type()->is_numeric_scalar(); });
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}
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bool Type::is_numeric_scalar_or_vector() const {
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return is_numeric_scalar() || is_numeric_vector();
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}
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bool Type::is_handle() const {
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return IsAnyOf<Sampler, Texture>();
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}
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} // namespace sem
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} // namespace tint
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