mirror of
https://github.com/encounter/dawn-cmake.git
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And fix issues where global variables would not be emitted unless they were transitively referenced by an entry point. This change requires crbug.com/tint/697 to be fixed before landing. Change-Id: I712bd9d369e08c9a3cdfb0f114c3609584f91f28 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54241 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: James Price <jrprice@google.com>
385 lines
10 KiB
C++
385 lines
10 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/ast/call_statement.h"
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#include "src/ast/stage_decoration.h"
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#include "src/ast/struct_block_decoration.h"
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#include "src/ast/variable_decl_statement.h"
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#include "src/writer/hlsl/test_helper.h"
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namespace tint {
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namespace writer {
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namespace hlsl {
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namespace {
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using HlslSanitizerTest = TestHelper;
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// TODO(crbug.com/tint/806): Remove
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TEST_F(HlslSanitizerTest, ArrayLength_DEPRECATED) {
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auto* sb_ty = Structure("SB",
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{
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Member("x", ty.f32()),
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Member("arr", ty.array(ty.vec4<f32>())),
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},
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{
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create<ast::StructBlockDecoration>(),
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});
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Global("sb", ty.Of(sb_ty), ast::StorageClass::kStorage, ast::Access::kRead,
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ast::DecorationList{
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create<ast::BindingDecoration>(0),
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create<ast::GroupDecoration>(1),
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});
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(Var("len", ty.u32(), ast::StorageClass::kNone,
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Call("arrayLength", MemberAccessor("sb", "arr")))),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(ByteAddressBuffer sb : register(t0, space1);
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void main() {
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uint tint_symbol_1 = 0u;
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sb.GetDimensions(tint_symbol_1);
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const uint tint_symbol_2 = ((tint_symbol_1 - 16u) / 16u);
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uint len = tint_symbol_2;
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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TEST_F(HlslSanitizerTest, Call_ArrayLength) {
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auto* s = Structure("my_struct", {Member(0, "a", ty.array<f32>(4))},
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{create<ast::StructBlockDecoration>()});
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Global("b", ty.Of(s), ast::StorageClass::kStorage, ast::Access::kRead,
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ast::DecorationList{
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create<ast::BindingDecoration>(1),
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create<ast::GroupDecoration>(2),
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});
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Func("a_func", ast::VariableList{}, ty.void_(),
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ast::StatementList{
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Decl(Var("len", ty.u32(), ast::StorageClass::kNone,
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Call("arrayLength", AddressOf(MemberAccessor("b", "a"))))),
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},
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ast::DecorationList{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(ByteAddressBuffer b : register(t1, space2);
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void a_func() {
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uint tint_symbol_1 = 0u;
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b.GetDimensions(tint_symbol_1);
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const uint tint_symbol_2 = ((tint_symbol_1 - 0u) / 4u);
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uint len = tint_symbol_2;
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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TEST_F(HlslSanitizerTest, Call_ArrayLength_OtherMembersInStruct) {
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auto* s = Structure("my_struct",
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{
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Member(0, "z", ty.f32()),
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Member(4, "a", ty.array<f32>(4)),
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},
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{create<ast::StructBlockDecoration>()});
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Global("b", ty.Of(s), ast::StorageClass::kStorage, ast::Access::kRead,
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ast::DecorationList{
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create<ast::BindingDecoration>(1),
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create<ast::GroupDecoration>(2),
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});
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Func("a_func", ast::VariableList{}, ty.void_(),
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ast::StatementList{
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Decl(Var("len", ty.u32(), ast::StorageClass::kNone,
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Call("arrayLength", AddressOf(MemberAccessor("b", "a"))))),
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},
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ast::DecorationList{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(ByteAddressBuffer b : register(t1, space2);
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void a_func() {
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uint tint_symbol_1 = 0u;
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b.GetDimensions(tint_symbol_1);
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const uint tint_symbol_2 = ((tint_symbol_1 - 4u) / 4u);
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uint len = tint_symbol_2;
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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TEST_F(HlslSanitizerTest, Call_ArrayLength_ViaLets) {
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auto* s = Structure("my_struct", {Member(0, "a", ty.array<f32>(4))},
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{create<ast::StructBlockDecoration>()});
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Global("b", ty.Of(s), ast::StorageClass::kStorage, ast::Access::kRead,
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ast::DecorationList{
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create<ast::BindingDecoration>(1),
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create<ast::GroupDecoration>(2),
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});
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auto* p = Const("p", nullptr, AddressOf("b"));
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auto* p2 = Const("p2", nullptr, AddressOf(MemberAccessor(Deref(p), "a")));
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Func("a_func", ast::VariableList{}, ty.void_(),
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ast::StatementList{
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Decl(p),
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Decl(p2),
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Decl(Var("len", ty.u32(), ast::StorageClass::kNone,
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Call("arrayLength", p2))),
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},
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ast::DecorationList{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(ByteAddressBuffer b : register(t1, space2);
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void a_func() {
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uint tint_symbol_1 = 0u;
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b.GetDimensions(tint_symbol_1);
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const uint tint_symbol_2 = ((tint_symbol_1 - 0u) / 4u);
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uint len = tint_symbol_2;
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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TEST_F(HlslSanitizerTest, PromoteArrayInitializerToConstVar) {
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auto* array_init = array<i32, 4>(1, 2, 3, 4);
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auto* array_index = IndexAccessor(array_init, 3);
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auto* pos = Var("pos", ty.i32(), ast::StorageClass::kNone, array_index);
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(pos),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(void main() {
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const int tint_symbol[4] = {1, 2, 3, 4};
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int pos = tint_symbol[3];
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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TEST_F(HlslSanitizerTest, PromoteStructInitializerToConstVar) {
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auto* str = Structure("S", {
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Member("a", ty.i32()),
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Member("b", ty.vec3<f32>()),
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Member("c", ty.i32()),
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});
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auto* struct_init = Construct(ty.Of(str), 1, vec3<f32>(2.f, 3.f, 4.f), 4);
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auto* struct_access = MemberAccessor(struct_init, "b");
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auto* pos =
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Var("pos", ty.vec3<f32>(), ast::StorageClass::kNone, struct_access);
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(pos),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(struct S {
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int a;
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float3 b;
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int c;
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};
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void main() {
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const S tint_symbol = {1, float3(2.0f, 3.0f, 4.0f), 4};
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float3 pos = tint_symbol.b;
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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TEST_F(HlslSanitizerTest, InlinePtrLetsBasic) {
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// var v : i32;
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// let p : ptr<function, i32> = &v;
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// let x : i32 = *p;
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auto* v = Var("v", ty.i32());
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auto* p =
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Const("p", ty.pointer<i32>(ast::StorageClass::kFunction), AddressOf(v));
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auto* x = Var("x", ty.i32(), ast::StorageClass::kNone, Deref(p));
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(v),
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Decl(p),
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Decl(x),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(void main() {
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int v = 0;
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int x = v;
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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TEST_F(HlslSanitizerTest, InlinePtrLetsComplexChain) {
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// var m : mat4x4<f32>;
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// let mp : ptr<function, mat4x4<f32>> = &m;
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// let vp : ptr<function, vec4<f32>> = &(*mp)[2];
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// let fp : ptr<function, f32> = &(*vp)[1];
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// let f : f32 = *fp;
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auto* m = Var("m", ty.mat4x4<f32>());
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auto* mp =
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Const("mp", ty.pointer(ty.mat4x4<f32>(), ast::StorageClass::kFunction),
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AddressOf(m));
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auto* vp =
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Const("vp", ty.pointer(ty.vec4<f32>(), ast::StorageClass::kFunction),
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AddressOf(IndexAccessor(Deref(mp), 2)));
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auto* fp = Const("fp", ty.pointer<f32>(ast::StorageClass::kFunction),
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AddressOf(IndexAccessor(Deref(vp), 1)));
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auto* f = Var("f", ty.f32(), ast::StorageClass::kNone, Deref(fp));
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(m),
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Decl(mp),
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Decl(vp),
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Decl(fp),
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Decl(f),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(void main() {
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float4x4 m = float4x4(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
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float f = m[2][1];
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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TEST_F(HlslSanitizerTest, InlineParam) {
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// fn x(p : ptr<function, i32>) -> i32 {
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// return *p;
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// }
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//
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// [[stage(fragment)]]
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// fn main() {
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// var v : i32;
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// let p : ptr<function, i32> = &v;
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// var r : i32 = x(p);
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// }
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Func("x", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))},
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ty.i32(), {Return(Deref("p"))});
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auto* v = Var("v", ty.i32());
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auto* p = Const("p", ty.pointer(ty.i32(), ast::StorageClass::kFunction),
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AddressOf(v));
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auto* r = Var("r", ty.i32(), ast::StorageClass::kNone, Call("x", p));
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(v),
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Decl(p),
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Decl(r),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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GeneratorImpl& gen = SanitizeAndBuild();
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ASSERT_TRUE(gen.Generate(out)) << gen.error();
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auto got = result();
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auto* expect = R"(int x(inout int p) {
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return p;
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}
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void main() {
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int v = 0;
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int r = x(v);
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return;
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}
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)";
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EXPECT_EQ(expect, got);
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}
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} // namespace
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} // namespace hlsl
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} // namespace writer
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} // namespace tint
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