mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-26 17:51:02 +00:00
8df947d2d6
When looking at the uses of the result of an instruction, code sinking assumes that all uses are in a basic block. However, this is not true if there is a decoration or name for the result of that insturction. This commit checks for this. Fixes https://crbug.com/923243.
558 lines
19 KiB
C++
558 lines
19 KiB
C++
// Copyright (c) 2019 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 <string>
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#include "gmock/gmock.h"
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#include "test/opt/assembly_builder.h"
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#include "test/opt/pass_fixture.h"
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#include "test/opt/pass_utils.h"
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namespace spvtools {
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namespace opt {
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namespace {
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using CodeSinkTest = PassTest<::testing::Test>;
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TEST_F(CodeSinkTest, MoveToNextBlock) {
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const std::string text = R"(
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;CHECK: OpFunction
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;CHECK: OpLabel
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;CHECK: OpLabel
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;CHECK: [[ac:%\w+]] = OpAccessChain
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;CHECK: [[ld:%\w+]] = OpLoad %uint [[ac]]
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;CHECK: OpCopyObject %uint [[ld]]
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%9 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%10 = OpTypeFunction %void
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%1 = OpFunction %void None %10
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%11 = OpLabel
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%12 = OpAccessChain %_ptr_Uniform_uint %9 %uint_0
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%13 = OpLoad %uint %12
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OpBranch %14
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%14 = OpLabel
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%15 = OpCopyObject %uint %13
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<CodeSinkingPass>(text, true);
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}
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TEST_F(CodeSinkTest, MovePastSelection) {
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const std::string text = R"(
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;CHECK: OpFunction
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;CHECK: OpLabel
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;CHECK: OpSelectionMerge [[merge_bb:%\w+]]
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;CHECK: [[merge_bb]] = OpLabel
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;CHECK: [[ac:%\w+]] = OpAccessChain
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;CHECK: [[ld:%\w+]] = OpLoad %uint [[ac]]
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;CHECK: OpCopyObject %uint [[ld]]
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpSelectionMerge %16 None
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OpBranchConditional %true %17 %16
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%17 = OpLabel
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OpBranch %16
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%16 = OpLabel
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%18 = OpCopyObject %uint %15
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<CodeSinkingPass>(text, true);
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}
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TEST_F(CodeSinkTest, MoveIntoSelection) {
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const std::string text = R"(
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;CHECK: OpFunction
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;CHECK: OpLabel
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;CHECK: OpSelectionMerge [[merge_bb:%\w+]]
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;CHECK-NEXT: OpBranchConditional %true [[bb:%\w+]] [[merge_bb]]
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;CHECK: [[bb]] = OpLabel
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;CHECK-NEXT: [[ac:%\w+]] = OpAccessChain
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;CHECK-NEXT: [[ld:%\w+]] = OpLoad %uint [[ac]]
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;CHECK-NEXT: OpCopyObject %uint [[ld]]
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpSelectionMerge %16 None
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OpBranchConditional %true %17 %16
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%17 = OpLabel
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%18 = OpCopyObject %uint %15
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OpBranch %16
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%16 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<CodeSinkingPass>(text, true);
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}
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TEST_F(CodeSinkTest, LeaveBeforeSelection) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpSelectionMerge %16 None
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OpBranchConditional %true %17 %20
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%20 = OpLabel
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OpBranch %16
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%17 = OpLabel
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%18 = OpCopyObject %uint %15
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OpBranch %16
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%16 = OpLabel
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%19 = OpCopyObject %uint %15
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
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text, /* skip_nop = */ true, /* do_validation = */ true);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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TEST_F(CodeSinkTest, LeaveAloneUseInSameBlock) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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%cond = OpIEqual %bool %15 %uint_0
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OpSelectionMerge %16 None
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OpBranchConditional %cond %17 %16
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%17 = OpLabel
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OpBranch %16
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%16 = OpLabel
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%19 = OpCopyObject %uint %15
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
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text, /* skip_nop = */ true, /* do_validation = */ true);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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TEST_F(CodeSinkTest, DontMoveIntoLoop) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpBranch %17
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%17 = OpLabel
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OpLoopMerge %merge %cont None
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OpBranch %cont
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%cont = OpLabel
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%cond = OpIEqual %bool %15 %uint_0
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OpBranchConditional %cond %merge %17
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%merge = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
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text, /* skip_nop = */ true, /* do_validation = */ true);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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TEST_F(CodeSinkTest, DontMoveIntoLoop2) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpSelectionMerge %16 None
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OpBranchConditional %true %17 %16
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%17 = OpLabel
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OpLoopMerge %merge %cont None
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OpBranch %cont
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%cont = OpLabel
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%cond = OpIEqual %bool %15 %uint_0
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OpBranchConditional %cond %merge %17
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%merge = OpLabel
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OpBranch %16
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%16 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
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text, /* skip_nop = */ true, /* do_validation = */ true);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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TEST_F(CodeSinkTest, DontMoveSelectionUsedInBothSides) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpSelectionMerge %16 None
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OpBranchConditional %true %17 %20
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%20 = OpLabel
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%19 = OpCopyObject %uint %15
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OpBranch %16
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%17 = OpLabel
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%18 = OpCopyObject %uint %15
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OpBranch %16
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%16 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
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text, /* skip_nop = */ true, /* do_validation = */ true);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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TEST_F(CodeSinkTest, DontMoveBecauseOfStore) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpStore %14 %15
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OpSelectionMerge %16 None
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OpBranchConditional %true %17 %20
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%20 = OpLabel
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OpBranch %16
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%17 = OpLabel
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%18 = OpCopyObject %uint %15
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OpBranch %16
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%16 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
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text, /* skip_nop = */ true, /* do_validation = */ true);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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TEST_F(CodeSinkTest, MoveReadOnlyLoadWithSync) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%mem_semantics = OpConstant %uint 0x42 ; Uniform memeory arquire
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%_arr_uint_uint_4 = OpTypeArray %uint %uint_4
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpMemoryBarrier %uint_4 %mem_semantics
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OpSelectionMerge %16 None
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OpBranchConditional %true %17 %20
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%20 = OpLabel
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OpBranch %16
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%17 = OpLabel
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%18 = OpCopyObject %uint %15
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OpBranch %16
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%16 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
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text, /* skip_nop = */ true, /* do_validation = */ true);
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EXPECT_EQ(Pass::Status::SuccessWithChange, std::get<1>(result));
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}
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TEST_F(CodeSinkTest, DontMoveBecauseOfSync) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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OpDecorate %_arr_uint_uint_4 BufferBlock
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OpMemberDecorate %_arr_uint_uint_4 0 Offset 0
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%mem_semantics = OpConstant %uint 0x42 ; Uniform memeory arquire
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%_arr_uint_uint_4 = OpTypeStruct %uint
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
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%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
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%12 = OpTypeFunction %void
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%1 = OpFunction %void None %12
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%13 = OpLabel
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%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
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%15 = OpLoad %uint %14
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OpMemoryBarrier %uint_4 %mem_semantics
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OpSelectionMerge %16 None
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OpBranchConditional %true %17 %20
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%20 = OpLabel
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OpBranch %16
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%17 = OpLabel
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%18 = OpCopyObject %uint %15
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OpBranch %16
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%16 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
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text, /* skip_nop = */ true, /* do_validation = */ true);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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TEST_F(CodeSinkTest, DontMoveBecauseOfAtomicWithSync) {
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %1 "main"
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OpDecorate %_arr_uint_uint_4 BufferBlock
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OpMemberDecorate %_arr_uint_uint_4 0 Offset 0
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%void = OpTypeVoid
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%uint_4 = OpConstant %uint 4
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%mem_semantics = OpConstant %uint 0x42 ; Uniform memeory arquire
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%_arr_uint_uint_4 = OpTypeStruct %uint
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
|
|
%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
|
|
%12 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %12
|
|
%13 = OpLabel
|
|
%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
|
|
%15 = OpLoad %uint %14
|
|
%al = OpAtomicLoad %uint %14 %uint_4 %mem_semantics
|
|
OpSelectionMerge %16 None
|
|
OpBranchConditional %true %17 %20
|
|
%20 = OpLabel
|
|
OpBranch %16
|
|
%17 = OpLabel
|
|
%18 = OpCopyObject %uint %15
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
|
|
text, /* skip_nop = */ true, /* do_validation = */ true);
|
|
EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
|
|
}
|
|
|
|
TEST_F(CodeSinkTest, MoveWithAtomicWithoutSync) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main"
|
|
OpDecorate %_arr_uint_uint_4 BufferBlock
|
|
OpMemberDecorate %_arr_uint_uint_4 0 Offset 0
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%uint_4 = OpConstant %uint 4
|
|
%_arr_uint_uint_4 = OpTypeStruct %uint
|
|
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
|
|
%_ptr_Uniform__arr_uint_uint_4 = OpTypePointer Uniform %_arr_uint_uint_4
|
|
%11 = OpVariable %_ptr_Uniform__arr_uint_uint_4 Uniform
|
|
%12 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %12
|
|
%13 = OpLabel
|
|
%14 = OpAccessChain %_ptr_Uniform_uint %11 %uint_0
|
|
%15 = OpLoad %uint %14
|
|
%al = OpAtomicLoad %uint %14 %uint_4 %uint_0
|
|
OpSelectionMerge %16 None
|
|
OpBranchConditional %true %17 %20
|
|
%20 = OpLabel
|
|
OpBranch %16
|
|
%17 = OpLabel
|
|
%18 = OpCopyObject %uint %15
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
|
|
text, /* skip_nop = */ true, /* do_validation = */ true);
|
|
EXPECT_EQ(Pass::Status::SuccessWithChange, std::get<1>(result));
|
|
}
|
|
|
|
TEST_F(CodeSinkTest, DecorationOnLoad) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main" %2
|
|
OpDecorate %3 RelaxedPrecision
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%2 = OpVariable %_ptr_Input_float Input
|
|
%1 = OpFunction %void None %5
|
|
%8 = OpLabel
|
|
%3 = OpLoad %float %2
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
// We just want to make sure the code does not crash.
|
|
auto result = SinglePassRunAndDisassemble<CodeSinkingPass>(
|
|
text, /* skip_nop = */ true, /* do_validation = */ true);
|
|
EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace opt
|
|
} // namespace spvtools
|