mirror of
https://github.com/encounter/dawn-cmake.git
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0a3cda9911
Unsuffixed float literals are currently treated as f32, but will shortly become AbstractFloat. To keep tests behaving identically to how they are currently, change all float literals to explicitly use the f32 '_f' suffix. Bug: tint:1504 Change-Id: I2a00725ee1b34a6efbe15ac4ba438c00c4416dd8 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89402 Reviewed-by: Dan Sinclair <dsinclair@chromium.org> Commit-Queue: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
321 lines
9.0 KiB
C++
321 lines
9.0 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 <memory>
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#include "gtest/gtest.h"
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#include "src/tint/ast/builtin.h"
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#include "src/tint/ast/builtin_attribute.h"
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#include "src/tint/ast/location_attribute.h"
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#include "src/tint/ast/return_statement.h"
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#include "src/tint/ast/stage_attribute.h"
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#include "src/tint/ast/storage_class.h"
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#include "src/tint/ast/variable.h"
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#include "src/tint/program.h"
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#include "src/tint/sem/f32.h"
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#include "src/tint/sem/vector.h"
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#include "src/tint/writer/spirv/builder.h"
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#include "src/tint/writer/spirv/spv_dump.h"
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#include "src/tint/writer/spirv/test_helper.h"
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using namespace tint::number_suffixes; // NOLINT
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namespace tint::writer::spirv {
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namespace {
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using BuilderTest = TestHelper;
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TEST_F(BuilderTest, EntryPoint_Parameters) {
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// @stage(fragment)
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// fn frag_main(@builtin(position) coord : vec4<f32>,
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// @location(1) loc1 : f32) {
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// var col : f32 = (coord.x * loc1);
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// }
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auto* coord = Param("coord", ty.vec4<f32>(), {Builtin(ast::Builtin::kPosition)});
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auto* loc1 = Param("loc1", ty.f32(), {Location(1u)});
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auto* mul = Mul(Expr(MemberAccessor("coord", "x")), Expr("loc1"));
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auto* col = Var("col", ty.f32(), ast::StorageClass::kNone, mul);
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Func("frag_main", ast::VariableList{coord, loc1}, ty.void_(),
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ast::StatementList{WrapInStatement(col)},
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ast::AttributeList{
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Stage(ast::PipelineStage::kFragment),
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});
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spirv::Builder& b = SanitizeAndBuild();
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ASSERT_TRUE(b.Build());
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// Test that "coord" and "loc1" get hoisted out to global variables with the
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// Input storage class, retaining their decorations.
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EXPECT_EQ(DumpBuilder(b), R"(OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %19 "frag_main" %1 %5
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OpExecutionMode %19 OriginUpperLeft
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OpName %1 "coord_1"
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OpName %5 "loc1_1"
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OpName %9 "frag_main_inner"
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OpName %10 "coord"
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OpName %11 "loc1"
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OpName %15 "col"
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OpName %19 "frag_main"
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OpDecorate %1 BuiltIn FragCoord
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OpDecorate %5 Location 1
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%4 = OpTypeFloat 32
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%3 = OpTypeVector %4 4
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%2 = OpTypePointer Input %3
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%1 = OpVariable %2 Input
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%6 = OpTypePointer Input %4
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%5 = OpVariable %6 Input
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%8 = OpTypeVoid
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%7 = OpTypeFunction %8 %3 %4
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%16 = OpTypePointer Function %4
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%17 = OpConstantNull %4
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%18 = OpTypeFunction %8
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%9 = OpFunction %8 None %7
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%10 = OpFunctionParameter %3
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%11 = OpFunctionParameter %4
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%12 = OpLabel
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%15 = OpVariable %16 Function %17
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%13 = OpCompositeExtract %4 %10 0
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%14 = OpFMul %4 %13 %11
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OpStore %15 %14
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OpReturn
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OpFunctionEnd
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%19 = OpFunction %8 None %18
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%20 = OpLabel
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%22 = OpLoad %3 %1
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%23 = OpLoad %4 %5
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%21 = OpFunctionCall %8 %9 %22 %23
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OpReturn
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OpFunctionEnd
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)");
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Validate(b);
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}
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TEST_F(BuilderTest, EntryPoint_ReturnValue) {
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// @stage(fragment)
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// fn frag_main(@location(0) @interpolate(flat) loc_in : u32)
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// -> @location(0) f32 {
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// if (loc_in > 10) {
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// return 0.5;
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// }
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// return 1.0;
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// }
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auto* loc_in = Param("loc_in", ty.u32(), {Location(0), Flat()});
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auto* cond =
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create<ast::BinaryExpression>(ast::BinaryOp::kGreaterThan, Expr("loc_in"), Expr(10_u));
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Func("frag_main", ast::VariableList{loc_in}, ty.f32(),
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ast::StatementList{
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If(cond, Block(Return(0.5_f))),
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Return(1_f),
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},
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ast::AttributeList{
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Stage(ast::PipelineStage::kFragment),
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},
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ast::AttributeList{Location(0)});
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spirv::Builder& b = SanitizeAndBuild();
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ASSERT_TRUE(b.Build());
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// Test that the return value gets hoisted out to a global variable with the
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// Output storage class, and the return statements are replaced with stores.
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EXPECT_EQ(DumpBuilder(b), R"(OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %21 "frag_main" %1 %4
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OpExecutionMode %21 OriginUpperLeft
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OpName %1 "loc_in_1"
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OpName %4 "value"
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OpName %9 "frag_main_inner"
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OpName %10 "loc_in"
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OpName %21 "frag_main"
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OpDecorate %1 Location 0
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OpDecorate %1 Flat
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OpDecorate %4 Location 0
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%3 = OpTypeInt 32 0
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%2 = OpTypePointer Input %3
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%1 = OpVariable %2 Input
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%6 = OpTypeFloat 32
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%5 = OpTypePointer Output %6
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%7 = OpConstantNull %6
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%4 = OpVariable %5 Output %7
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%8 = OpTypeFunction %6 %3
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%12 = OpConstant %3 10
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%14 = OpTypeBool
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%17 = OpConstant %6 0.5
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%18 = OpConstant %6 1
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%20 = OpTypeVoid
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%19 = OpTypeFunction %20
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%9 = OpFunction %6 None %8
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%10 = OpFunctionParameter %3
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%11 = OpLabel
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%13 = OpUGreaterThan %14 %10 %12
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OpSelectionMerge %15 None
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OpBranchConditional %13 %16 %15
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%16 = OpLabel
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OpReturnValue %17
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%15 = OpLabel
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OpReturnValue %18
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OpFunctionEnd
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%21 = OpFunction %20 None %19
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%22 = OpLabel
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%24 = OpLoad %3 %1
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%23 = OpFunctionCall %6 %9 %24
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OpStore %4 %23
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OpReturn
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OpFunctionEnd
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)");
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Validate(b);
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}
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TEST_F(BuilderTest, EntryPoint_SharedStruct) {
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// struct Interface {
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// @location(1) value : f32;
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// @builtin(position) pos : vec4<f32>;
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// };
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//
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// @stage(vertex)
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// fn vert_main() -> Interface {
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// return Interface(42.0, vec4<f32>());
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// }
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//
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// @stage(fragment)
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// fn frag_main(inputs : Interface) -> @builtin(frag_depth) f32 {
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// return inputs.value;
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// }
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auto* interface = Structure(
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"Interface",
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{
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Member("value", ty.f32(), ast::AttributeList{Location(1u)}),
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Member("pos", ty.vec4<f32>(), ast::AttributeList{Builtin(ast::Builtin::kPosition)}),
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});
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auto* vert_retval = Construct(ty.Of(interface), 42_f, Construct(ty.vec4<f32>()));
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Func("vert_main", ast::VariableList{}, ty.Of(interface), {Return(vert_retval)},
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{Stage(ast::PipelineStage::kVertex)});
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auto* frag_inputs = Param("inputs", ty.Of(interface));
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Func("frag_main", ast::VariableList{frag_inputs}, ty.f32(),
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{Return(MemberAccessor(Expr("inputs"), "value"))}, {Stage(ast::PipelineStage::kFragment)},
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{Builtin(ast::Builtin::kFragDepth)});
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spirv::Builder& b = SanitizeAndBuild();
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ASSERT_TRUE(b.Build()) << b.error();
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EXPECT_EQ(DumpBuilder(b), R"(OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint Vertex %23 "vert_main" %1 %5 %9
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OpEntryPoint Fragment %34 "frag_main" %10 %12 %14
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OpExecutionMode %34 OriginUpperLeft
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OpExecutionMode %34 DepthReplacing
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OpName %1 "value_1"
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OpName %5 "pos_1"
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OpName %9 "vertex_point_size"
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OpName %10 "value_2"
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OpName %12 "pos_2"
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OpName %14 "value_3"
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OpName %16 "Interface"
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OpMemberName %16 0 "value"
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OpMemberName %16 1 "pos"
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OpName %17 "vert_main_inner"
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OpName %23 "vert_main"
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OpName %30 "frag_main_inner"
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OpName %31 "inputs"
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OpName %34 "frag_main"
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OpDecorate %1 Location 1
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OpDecorate %5 BuiltIn Position
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OpDecorate %9 BuiltIn PointSize
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OpDecorate %10 Location 1
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OpDecorate %12 BuiltIn FragCoord
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OpDecorate %14 BuiltIn FragDepth
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OpMemberDecorate %16 0 Offset 0
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OpMemberDecorate %16 1 Offset 16
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%3 = OpTypeFloat 32
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%2 = OpTypePointer Output %3
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%4 = OpConstantNull %3
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%1 = OpVariable %2 Output %4
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%7 = OpTypeVector %3 4
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%6 = OpTypePointer Output %7
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%8 = OpConstantNull %7
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%5 = OpVariable %6 Output %8
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%9 = OpVariable %2 Output %4
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%11 = OpTypePointer Input %3
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%10 = OpVariable %11 Input
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%13 = OpTypePointer Input %7
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%12 = OpVariable %13 Input
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%14 = OpVariable %2 Output %4
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%16 = OpTypeStruct %3 %7
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%15 = OpTypeFunction %16
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%19 = OpConstant %3 42
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%20 = OpConstantComposite %16 %19 %8
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%22 = OpTypeVoid
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%21 = OpTypeFunction %22
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%28 = OpConstant %3 1
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%29 = OpTypeFunction %3 %16
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%17 = OpFunction %16 None %15
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%18 = OpLabel
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OpReturnValue %20
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OpFunctionEnd
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%23 = OpFunction %22 None %21
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%24 = OpLabel
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%25 = OpFunctionCall %16 %17
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%26 = OpCompositeExtract %3 %25 0
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OpStore %1 %26
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%27 = OpCompositeExtract %7 %25 1
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OpStore %5 %27
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OpStore %9 %28
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OpReturn
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OpFunctionEnd
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%30 = OpFunction %3 None %29
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%31 = OpFunctionParameter %16
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%32 = OpLabel
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%33 = OpCompositeExtract %3 %31 0
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OpReturnValue %33
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OpFunctionEnd
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%34 = OpFunction %22 None %21
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%35 = OpLabel
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%37 = OpLoad %3 %10
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%38 = OpLoad %7 %12
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%39 = OpCompositeConstruct %16 %37 %38
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%36 = OpFunctionCall %3 %30 %39
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OpStore %14 %36
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OpReturn
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OpFunctionEnd
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)");
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Validate(b);
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}
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TEST_F(BuilderTest, SampleIndex_SampleRateShadingCapability) {
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Func("main", {Param("sample_index", ty.u32(), {Builtin(ast::Builtin::kSampleIndex)})},
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ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)});
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spirv::Builder& b = SanitizeAndBuild();
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ASSERT_TRUE(b.Build()) << b.error();
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// Make sure we generate the SampleRateShading capability.
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EXPECT_EQ(DumpInstructions(b.capabilities()),
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"OpCapability Shader\n"
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"OpCapability SampleRateShading\n");
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EXPECT_EQ(DumpInstructions(b.annots()), "OpDecorate %1 BuiltIn SampleId\n");
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}
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} // namespace
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} // namespace tint::writer::spirv
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