mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-11 11:20:05 +00:00
608 lines
19 KiB
C++
608 lines
19 KiB
C++
// Copyright (c) 2018 Google LLC.
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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 <string>
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#include <vector>
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#include "effcee/effcee.h"
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#include "gmock/gmock.h"
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#include "source/opt/build_module.h"
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#include "source/opt/loop_descriptor.h"
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#include "source/opt/loop_utils.h"
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#include "source/opt/pass.h"
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#include "test/opt//assembly_builder.h"
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#include "test/opt/function_utils.h"
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namespace spvtools {
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namespace opt {
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namespace {
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bool Validate(const std::vector<uint32_t>& bin) {
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spv_target_env target_env = SPV_ENV_UNIVERSAL_1_2;
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spv_context spvContext = spvContextCreate(target_env);
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spv_diagnostic diagnostic = nullptr;
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spv_const_binary_t binary = {bin.data(), bin.size()};
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spv_result_t error = spvValidate(spvContext, &binary, &diagnostic);
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if (error != 0) spvDiagnosticPrint(diagnostic);
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spvDiagnosticDestroy(diagnostic);
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spvContextDestroy(spvContext);
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return error == 0;
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}
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void Match(const std::string& original, IRContext* context,
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bool do_validation = true) {
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std::vector<uint32_t> bin;
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context->module()->ToBinary(&bin, true);
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if (do_validation) {
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EXPECT_TRUE(Validate(bin));
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}
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std::string assembly;
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SpirvTools tools(SPV_ENV_UNIVERSAL_1_2);
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EXPECT_TRUE(
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tools.Disassemble(bin, &assembly, SPV_BINARY_TO_TEXT_OPTION_NO_HEADER))
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<< "Disassembling failed for shader:\n"
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<< assembly << std::endl;
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auto match_result = effcee::Match(assembly, original);
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EXPECT_EQ(effcee::Result::Status::Ok, match_result.status())
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<< match_result.message() << "\nChecking result:\n"
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<< assembly;
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}
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using LCSSATest = ::testing::Test;
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/*
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Generated from the following GLSL + --eliminate-local-multi-store
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#version 330 core
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layout(location = 0) out vec4 c;
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void main() {
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int i = 0;
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for (; i < 10; i++) {
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}
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if (i != 0) {
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i = 1;
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}
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}
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*/
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TEST_F(LCSSATest, SimpleLCSSA) {
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const std::string text = R"(
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; CHECK: OpLoopMerge [[merge:%\w+]] %19 None
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; CHECK: [[merge]] = OpLabel
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; CHECK-NEXT: [[phi:%\w+]] = OpPhi {{%\w+}} %30 %20
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; CHECK-NEXT: %27 = OpINotEqual {{%\w+}} [[phi]] %9
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main" %3
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 330
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OpName %2 "main"
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OpName %3 "c"
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OpDecorate %3 Location 0
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%5 = OpTypeVoid
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%6 = OpTypeFunction %5
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%7 = OpTypeInt 32 1
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%8 = OpTypePointer Function %7
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%9 = OpConstant %7 0
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%10 = OpConstant %7 10
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%11 = OpTypeBool
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%12 = OpConstant %7 1
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%13 = OpTypeFloat 32
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%14 = OpTypeVector %13 4
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%15 = OpTypePointer Output %14
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%3 = OpVariable %15 Output
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%2 = OpFunction %5 None %6
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%16 = OpLabel
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OpBranch %17
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%17 = OpLabel
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%30 = OpPhi %7 %9 %16 %25 %19
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OpLoopMerge %18 %19 None
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OpBranch %20
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%20 = OpLabel
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%22 = OpSLessThan %11 %30 %10
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OpBranchConditional %22 %23 %18
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%23 = OpLabel
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OpBranch %19
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%19 = OpLabel
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%25 = OpIAdd %7 %30 %12
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OpBranch %17
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%18 = OpLabel
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%27 = OpINotEqual %11 %30 %9
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OpSelectionMerge %28 None
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OpBranchConditional %27 %29 %28
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%29 = OpLabel
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OpBranch %28
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%28 = OpLabel
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%31 = OpPhi %7 %30 %18 %12 %29
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OpReturn
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OpFunctionEnd
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)";
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std::unique_ptr<IRContext> context =
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BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
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SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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Module* module = context->module();
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EXPECT_NE(nullptr, module) << "Assembling failed for shader:\n"
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<< text << std::endl;
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const Function* f = spvtest::GetFunction(module, 2);
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LoopDescriptor ld{context.get(), f};
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Loop* loop = ld[17];
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EXPECT_FALSE(loop->IsLCSSA());
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LoopUtils Util(context.get(), loop);
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Util.MakeLoopClosedSSA();
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EXPECT_TRUE(loop->IsLCSSA());
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Match(text, context.get());
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}
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/*
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Generated from the following GLSL + --eliminate-local-multi-store
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#version 330 core
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layout(location = 0) out vec4 c;
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void main() {
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int i = 0;
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for (; i < 10; i++) {
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}
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if (i != 0) {
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i = 1;
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}
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}
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*/
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// Same test as above, but should reuse an existing phi.
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TEST_F(LCSSATest, PhiReuseLCSSA) {
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const std::string text = R"(
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; CHECK: OpLoopMerge [[merge:%\w+]] %19 None
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; CHECK: [[merge]] = OpLabel
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; CHECK-NEXT: [[phi:%\w+]] = OpPhi {{%\w+}} %30 %20
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; CHECK-NEXT: %27 = OpINotEqual {{%\w+}} [[phi]] %9
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main" %3
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 330
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OpName %2 "main"
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OpName %3 "c"
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OpDecorate %3 Location 0
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%5 = OpTypeVoid
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%6 = OpTypeFunction %5
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%7 = OpTypeInt 32 1
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%8 = OpTypePointer Function %7
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%9 = OpConstant %7 0
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%10 = OpConstant %7 10
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%11 = OpTypeBool
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%12 = OpConstant %7 1
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%13 = OpTypeFloat 32
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%14 = OpTypeVector %13 4
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%15 = OpTypePointer Output %14
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%3 = OpVariable %15 Output
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%2 = OpFunction %5 None %6
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%16 = OpLabel
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OpBranch %17
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%17 = OpLabel
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%30 = OpPhi %7 %9 %16 %25 %19
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OpLoopMerge %18 %19 None
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OpBranch %20
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%20 = OpLabel
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%22 = OpSLessThan %11 %30 %10
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OpBranchConditional %22 %23 %18
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%23 = OpLabel
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OpBranch %19
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%19 = OpLabel
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%25 = OpIAdd %7 %30 %12
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OpBranch %17
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%18 = OpLabel
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%32 = OpPhi %7 %30 %20
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%27 = OpINotEqual %11 %30 %9
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OpSelectionMerge %28 None
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OpBranchConditional %27 %29 %28
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%29 = OpLabel
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OpBranch %28
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%28 = OpLabel
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%31 = OpPhi %7 %30 %18 %12 %29
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OpReturn
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OpFunctionEnd
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)";
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std::unique_ptr<IRContext> context =
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BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
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SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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Module* module = context->module();
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EXPECT_NE(nullptr, module) << "Assembling failed for shader:\n"
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<< text << std::endl;
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const Function* f = spvtest::GetFunction(module, 2);
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LoopDescriptor ld{context.get(), f};
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Loop* loop = ld[17];
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EXPECT_FALSE(loop->IsLCSSA());
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LoopUtils Util(context.get(), loop);
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Util.MakeLoopClosedSSA();
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EXPECT_TRUE(loop->IsLCSSA());
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Match(text, context.get());
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}
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/*
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Generated from the following GLSL + --eliminate-local-multi-store
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#version 330 core
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layout(location = 0) out vec4 c;
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void main() {
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int i = 0;
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int j = 0;
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for (; i < 10; i++) {}
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for (; j < 10; j++) {}
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if (j != 0) {
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i = 1;
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}
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}
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*/
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TEST_F(LCSSATest, DualLoopLCSSA) {
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const std::string text = R"(
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; CHECK: %20 = OpLabel
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; CHECK-NEXT: [[phi:%\w+]] = OpPhi %6 %17 %21
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; CHECK: %33 = OpLabel
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; CHECK-NEXT: {{%\w+}} = OpPhi {{%\w+}} [[phi]] %28 %11 %34
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main" %3
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 330
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OpName %2 "main"
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OpName %3 "c"
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OpDecorate %3 Location 0
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%4 = OpTypeVoid
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%5 = OpTypeFunction %4
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%6 = OpTypeInt 32 1
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%7 = OpTypePointer Function %6
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%8 = OpConstant %6 0
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%9 = OpConstant %6 10
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%10 = OpTypeBool
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%11 = OpConstant %6 1
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%12 = OpTypeFloat 32
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%13 = OpTypeVector %12 4
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%14 = OpTypePointer Output %13
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%3 = OpVariable %14 Output
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%2 = OpFunction %4 None %5
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%15 = OpLabel
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OpBranch %16
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%16 = OpLabel
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%17 = OpPhi %6 %8 %15 %18 %19
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OpLoopMerge %20 %19 None
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OpBranch %21
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%21 = OpLabel
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%22 = OpSLessThan %10 %17 %9
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OpBranchConditional %22 %23 %20
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%23 = OpLabel
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OpBranch %19
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%19 = OpLabel
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%18 = OpIAdd %6 %17 %11
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OpBranch %16
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%20 = OpLabel
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OpBranch %24
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%24 = OpLabel
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%25 = OpPhi %6 %8 %20 %26 %27
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OpLoopMerge %28 %27 None
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OpBranch %29
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%29 = OpLabel
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%30 = OpSLessThan %10 %25 %9
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OpBranchConditional %30 %31 %28
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%31 = OpLabel
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OpBranch %27
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%27 = OpLabel
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%26 = OpIAdd %6 %25 %11
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OpBranch %24
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%28 = OpLabel
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%32 = OpINotEqual %10 %25 %8
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OpSelectionMerge %33 None
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OpBranchConditional %32 %34 %33
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%34 = OpLabel
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OpBranch %33
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%33 = OpLabel
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%35 = OpPhi %6 %17 %28 %11 %34
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OpReturn
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OpFunctionEnd
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)";
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std::unique_ptr<IRContext> context =
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BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
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SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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Module* module = context->module();
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EXPECT_NE(nullptr, module) << "Assembling failed for shader:\n"
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<< text << std::endl;
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const Function* f = spvtest::GetFunction(module, 2);
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LoopDescriptor ld{context.get(), f};
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Loop* loop = ld[16];
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EXPECT_FALSE(loop->IsLCSSA());
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LoopUtils Util(context.get(), loop);
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Util.MakeLoopClosedSSA();
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EXPECT_TRUE(loop->IsLCSSA());
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Match(text, context.get());
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}
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/*
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Generated from the following GLSL + --eliminate-local-multi-store
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#version 330 core
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layout(location = 0) out vec4 c;
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void main() {
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int i = 0;
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if (i != 0) {
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for (; i < 10; i++) {}
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}
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if (i != 0) {
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i = 1;
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}
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}
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*/
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TEST_F(LCSSATest, PhiUserLCSSA) {
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const std::string text = R"(
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; CHECK: OpLoopMerge [[merge:%\w+]] %22 None
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; CHECK: [[merge]] = OpLabel
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; CHECK-NEXT: [[phi:%\w+]] = OpPhi {{%\w+}} %20 %24
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; CHECK: %17 = OpLabel
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; CHECK-NEXT: {{%\w+}} = OpPhi {{%\w+}} %8 %15 [[phi]] %23
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main" %3
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 330
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OpName %2 "main"
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OpName %3 "c"
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OpDecorate %3 Location 0
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%4 = OpTypeVoid
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%5 = OpTypeFunction %4
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%6 = OpTypeInt 32 1
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%7 = OpTypePointer Function %6
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%8 = OpConstant %6 0
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%9 = OpTypeBool
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%10 = OpConstant %6 10
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%11 = OpConstant %6 1
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%12 = OpTypeFloat 32
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%13 = OpTypeVector %12 4
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%14 = OpTypePointer Output %13
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%3 = OpVariable %14 Output
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%2 = OpFunction %4 None %5
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%15 = OpLabel
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%16 = OpINotEqual %9 %8 %8
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OpSelectionMerge %17 None
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OpBranchConditional %16 %18 %17
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%18 = OpLabel
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OpBranch %19
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%19 = OpLabel
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%20 = OpPhi %6 %8 %18 %21 %22
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OpLoopMerge %23 %22 None
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OpBranch %24
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%24 = OpLabel
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%25 = OpSLessThan %9 %20 %10
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OpBranchConditional %25 %26 %23
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%26 = OpLabel
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OpBranch %22
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%22 = OpLabel
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%21 = OpIAdd %6 %20 %11
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OpBranch %19
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%23 = OpLabel
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OpBranch %17
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%17 = OpLabel
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%27 = OpPhi %6 %8 %15 %20 %23
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%28 = OpINotEqual %9 %27 %8
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OpSelectionMerge %29 None
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OpBranchConditional %28 %30 %29
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%30 = OpLabel
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OpBranch %29
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%29 = OpLabel
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%31 = OpPhi %6 %27 %17 %11 %30
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OpReturn
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OpFunctionEnd
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)";
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std::unique_ptr<IRContext> context =
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BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
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SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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Module* module = context->module();
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EXPECT_NE(nullptr, module) << "Assembling failed for shader:\n"
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<< text << std::endl;
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const Function* f = spvtest::GetFunction(module, 2);
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LoopDescriptor ld{context.get(), f};
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Loop* loop = ld[19];
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EXPECT_FALSE(loop->IsLCSSA());
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LoopUtils Util(context.get(), loop);
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Util.MakeLoopClosedSSA();
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EXPECT_TRUE(loop->IsLCSSA());
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Match(text, context.get());
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}
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/*
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Generated from the following GLSL + --eliminate-local-multi-store
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#version 330 core
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void main() {
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int i = 0;
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if (i != 0) {
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for (; i < 10; i++) {
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if (i > 5) break;
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}
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}
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if (i != 0) {
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i = 1;
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}
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}
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*/
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TEST_F(LCSSATest, LCSSAWithBreak) {
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const std::string text = R"(
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; CHECK: OpLoopMerge [[merge:%\w+]] %19 None
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; CHECK: [[merge]] = OpLabel
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; CHECK-NEXT: [[phi:%\w+]] = OpPhi {{%\w+}} %17 %21 %17 %26
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; CHECK: %14 = OpLabel
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; CHECK-NEXT: {{%\w+}} = OpPhi {{%\w+}} %7 %12 [[phi]] [[merge]]
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 330
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OpName %2 "main"
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%3 = OpTypeVoid
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%4 = OpTypeFunction %3
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%5 = OpTypeInt 32 1
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%6 = OpTypePointer Function %5
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%7 = OpConstant %5 0
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%8 = OpTypeBool
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%9 = OpConstant %5 10
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%10 = OpConstant %5 5
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%11 = OpConstant %5 1
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%2 = OpFunction %3 None %4
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%12 = OpLabel
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%13 = OpINotEqual %8 %7 %7
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OpSelectionMerge %14 None
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OpBranchConditional %13 %15 %14
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%15 = OpLabel
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OpBranch %16
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%16 = OpLabel
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%17 = OpPhi %5 %7 %15 %18 %19
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OpLoopMerge %20 %19 None
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OpBranch %21
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%21 = OpLabel
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%22 = OpSLessThan %8 %17 %9
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OpBranchConditional %22 %23 %20
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%23 = OpLabel
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%24 = OpSGreaterThan %8 %17 %10
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OpSelectionMerge %25 None
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OpBranchConditional %24 %26 %25
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%26 = OpLabel
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OpBranch %20
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%25 = OpLabel
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OpBranch %19
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%19 = OpLabel
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%18 = OpIAdd %5 %17 %11
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OpBranch %16
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%20 = OpLabel
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OpBranch %14
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%14 = OpLabel
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%27 = OpPhi %5 %7 %12 %17 %20
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%28 = OpINotEqual %8 %27 %7
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OpSelectionMerge %29 None
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OpBranchConditional %28 %30 %29
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%30 = OpLabel
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OpBranch %29
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%29 = OpLabel
|
|
%31 = OpPhi %5 %27 %14 %11 %30
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
std::unique_ptr<IRContext> context =
|
|
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
Module* module = context->module();
|
|
EXPECT_NE(nullptr, module) << "Assembling failed for shader:\n"
|
|
<< text << std::endl;
|
|
const Function* f = spvtest::GetFunction(module, 2);
|
|
LoopDescriptor ld{context.get(), f};
|
|
|
|
Loop* loop = ld[19];
|
|
EXPECT_FALSE(loop->IsLCSSA());
|
|
LoopUtils Util(context.get(), loop);
|
|
Util.MakeLoopClosedSSA();
|
|
EXPECT_TRUE(loop->IsLCSSA());
|
|
Match(text, context.get());
|
|
}
|
|
|
|
/*
|
|
Generated from the following GLSL + --eliminate-local-multi-store
|
|
|
|
#version 330 core
|
|
void main() {
|
|
int i = 0;
|
|
for (; i < 10; i++) {}
|
|
for (int j = i; j < 10;) { j = i + j; }
|
|
}
|
|
*/
|
|
TEST_F(LCSSATest, LCSSAUseInNonEligiblePhi) {
|
|
const std::string text = R"(
|
|
; CHECK: %12 = OpLabel
|
|
; CHECK-NEXT: [[def_to_close:%\w+]] = OpPhi {{%\w+}} {{%\w+}} {{%\w+}} {{%\w+}} [[continue:%\w+]]
|
|
; CHECK-NEXT: OpLoopMerge [[merge:%\w+]] [[continue]] None
|
|
; CHECK: [[merge]] = OpLabel
|
|
; CHECK-NEXT: [[closing_phi:%\w+]] = OpPhi {{%\w+}} [[def_to_close]] %17
|
|
; CHECK: %16 = OpLabel
|
|
; CHECK-NEXT: [[use_in_phi:%\w+]] = OpPhi {{%\w+}} %21 %22 [[closing_phi]] [[merge]]
|
|
; CHECK: OpIAdd {{%\w+}} [[closing_phi]] [[use_in_phi]]
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %2 "main"
|
|
OpExecutionMode %2 OriginUpperLeft
|
|
OpSource GLSL 330
|
|
OpName %2 "main"
|
|
%3 = OpTypeVoid
|
|
%4 = OpTypeFunction %3
|
|
%5 = OpTypeInt 32 1
|
|
%6 = OpTypePointer Function %5
|
|
%7 = OpConstant %5 0
|
|
%8 = OpConstant %5 10
|
|
%9 = OpTypeBool
|
|
%10 = OpConstant %5 1
|
|
%2 = OpFunction %3 None %4
|
|
%11 = OpLabel
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
%13 = OpPhi %5 %7 %11 %14 %15
|
|
OpLoopMerge %16 %15 None
|
|
OpBranch %17
|
|
%17 = OpLabel
|
|
%18 = OpSLessThan %9 %13 %8
|
|
OpBranchConditional %18 %19 %16
|
|
%19 = OpLabel
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
%14 = OpIAdd %5 %13 %10
|
|
OpBranch %12
|
|
%16 = OpLabel
|
|
%20 = OpPhi %5 %13 %17 %21 %22
|
|
OpLoopMerge %23 %22 None
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
%25 = OpSLessThan %9 %20 %8
|
|
OpBranchConditional %25 %26 %23
|
|
%26 = OpLabel
|
|
%21 = OpIAdd %5 %13 %20
|
|
OpBranch %22
|
|
%22 = OpLabel
|
|
OpBranch %16
|
|
%23 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
std::unique_ptr<IRContext> context =
|
|
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
Module* module = context->module();
|
|
EXPECT_NE(nullptr, module) << "Assembling failed for shader:\n"
|
|
<< text << std::endl;
|
|
const Function* f = spvtest::GetFunction(module, 2);
|
|
LoopDescriptor ld{context.get(), f};
|
|
|
|
Loop* loop = ld[12];
|
|
EXPECT_FALSE(loop->IsLCSSA());
|
|
LoopUtils Util(context.get(), loop);
|
|
Util.MakeLoopClosedSSA();
|
|
EXPECT_TRUE(loop->IsLCSSA());
|
|
Match(text, context.get());
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace opt
|
|
} // namespace spvtools
|