// Copyright (c) 2017 Google Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include "assembly_builder.h" #include "gmock/gmock.h" #include "pass_fixture.h" #include "pass_utils.h" #include #include #include #include #include namespace { using namespace spvtools; using Workaround1209Test = PassTest<::testing::Test>; #ifdef SPIRV_EFFCEE TEST_F(Workaround1209Test, RemoveOpUnreachableInLoop) { const std::string text = R"( OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Vertex %main "main" %texcoord %gl_VertexIndex %_ OpSource GLSL 400 OpSourceExtension "GL_ARB_separate_shader_objects" OpSourceExtension "GL_ARB_shading_language_420pack" OpName %main "main" OpName %texcoord "texcoord" OpName %buf "buf" OpMemberName %buf 0 "MVP" OpMemberName %buf 1 "position" OpMemberName %buf 2 "attr" OpName %ubuf "ubuf" OpName %gl_VertexIndex "gl_VertexIndex" OpName %gl_PerVertex "gl_PerVertex" OpMemberName %gl_PerVertex 0 "gl_Position" OpName %_ "" OpDecorate %texcoord Location 0 OpDecorate %_arr_v4float_uint_72 ArrayStride 16 OpDecorate %_arr_v4float_uint_72_0 ArrayStride 16 OpMemberDecorate %buf 0 ColMajor OpMemberDecorate %buf 0 Offset 0 OpMemberDecorate %buf 0 MatrixStride 16 OpMemberDecorate %buf 1 Offset 64 OpMemberDecorate %buf 2 Offset 1216 OpDecorate %buf Block OpDecorate %ubuf DescriptorSet 0 OpDecorate %ubuf Binding 0 OpDecorate %gl_VertexIndex BuiltIn VertexIndex OpMemberDecorate %gl_PerVertex 0 BuiltIn Position OpDecorate %gl_PerVertex Block %void = OpTypeVoid %12 = OpTypeFunction %void %float = OpTypeFloat 32 %v4float = OpTypeVector %float 4 %_ptr_Output_v4float = OpTypePointer Output %v4float %texcoord = OpVariable %_ptr_Output_v4float Output %mat4v4float = OpTypeMatrix %v4float 4 %uint = OpTypeInt 32 0 %uint_72 = OpConstant %uint 72 %_arr_v4float_uint_72 = OpTypeArray %v4float %uint_72 %_arr_v4float_uint_72_0 = OpTypeArray %v4float %uint_72 %buf = OpTypeStruct %mat4v4float %_arr_v4float_uint_72 %_arr_v4float_uint_72_0 %_ptr_Uniform_buf = OpTypePointer Uniform %buf %ubuf = OpVariable %_ptr_Uniform_buf Uniform %int = OpTypeInt 32 1 %int_2 = OpConstant %int 2 %_ptr_Input_int = OpTypePointer Input %int %gl_VertexIndex = OpVariable %_ptr_Input_int Input %_ptr_Uniform_v4float = OpTypePointer Uniform %v4float %gl_PerVertex = OpTypeStruct %v4float %_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex %_ = OpVariable %_ptr_Output_gl_PerVertex Output %int_0 = OpConstant %int 0 %int_1 = OpConstant %int 1 %float_1 = OpConstant %float 1 %28 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1 %main = OpFunction %void None %12 %29 = OpLabel OpBranch %30 %30 = OpLabel ; CHECK: OpLoopMerge [[merge:%[a-zA-Z_\d]+]] OpLoopMerge %31 %32 None OpBranch %33 %33 = OpLabel ; CHECK: OpSelectionMerge [[sel_merge:%[a-zA-Z_\d]+]] OpSelectionMerge %34 None OpSwitch %int_1 %35 %35 = OpLabel %36 = OpLoad %int %gl_VertexIndex %37 = OpAccessChain %_ptr_Uniform_v4float %ubuf %int_2 %36 %38 = OpLoad %v4float %37 OpStore %texcoord %38 %39 = OpAccessChain %_ptr_Output_v4float %_ %int_0 OpStore %39 %28 OpBranch %31 ; CHECK: [[sel_merge]] = OpLabel %34 = OpLabel ; CHECK-NEXT: OpBranch [[merge]] OpUnreachable %32 = OpLabel OpBranch %30 %31 = OpLabel OpReturn OpFunctionEnd)"; SinglePassRunAndMatch(text, false); } TEST_F(Workaround1209Test, RemoveOpUnreachableInNestedLoop) { const std::string text = R"( OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Vertex %2 "main" %3 %4 %5 OpSource GLSL 400 OpSourceExtension "GL_ARB_separate_shader_objects" OpSourceExtension "GL_ARB_shading_language_420pack" OpName %2 "main" OpName %3 "texcoord" OpName %6 "buf" OpMemberName %6 0 "MVP" OpMemberName %6 1 "position" OpMemberName %6 2 "attr" OpName %7 "ubuf" OpName %4 "gl_VertexIndex" OpName %8 "gl_PerVertex" OpMemberName %8 0 "gl_Position" OpName %5 "" OpDecorate %3 Location 0 OpDecorate %9 ArrayStride 16 OpDecorate %10 ArrayStride 16 OpMemberDecorate %6 0 ColMajor OpMemberDecorate %6 0 Offset 0 OpMemberDecorate %6 0 MatrixStride 16 OpMemberDecorate %6 1 Offset 64 OpMemberDecorate %6 2 Offset 1216 OpDecorate %6 Block OpDecorate %7 DescriptorSet 0 OpDecorate %7 Binding 0 OpDecorate %4 BuiltIn VertexIndex OpMemberDecorate %8 0 BuiltIn Position OpDecorate %8 Block %11 = OpTypeVoid %12 = OpTypeFunction %11 %13 = OpTypeFloat 32 %14 = OpTypeVector %13 4 %15 = OpTypePointer Output %14 %3 = OpVariable %15 Output %16 = OpTypeMatrix %14 4 %17 = OpTypeInt 32 0 %18 = OpConstant %17 72 %9 = OpTypeArray %14 %18 %10 = OpTypeArray %14 %18 %6 = OpTypeStruct %16 %9 %10 %19 = OpTypePointer Uniform %6 %7 = OpVariable %19 Uniform %20 = OpTypeInt 32 1 %21 = OpConstant %20 2 %22 = OpTypePointer Input %20 %4 = OpVariable %22 Input %23 = OpTypePointer Uniform %14 %8 = OpTypeStruct %14 %24 = OpTypePointer Output %8 %5 = OpVariable %24 Output %25 = OpConstant %20 0 %26 = OpConstant %20 1 %27 = OpConstant %13 1 %28 = OpConstantComposite %14 %27 %27 %27 %27 %2 = OpFunction %11 None %12 %29 = OpLabel OpBranch %31 %31 = OpLabel ; CHECK: OpLoopMerge OpLoopMerge %32 %33 None OpBranch %30 %30 = OpLabel ; CHECK: OpLoopMerge [[merge:%[a-zA-Z_\d]+]] OpLoopMerge %34 %35 None OpBranch %36 %36 = OpLabel ; CHECK: OpSelectionMerge [[sel_merge:%[a-zA-Z_\d]+]] OpSelectionMerge %37 None OpSwitch %26 %38 %38 = OpLabel %39 = OpLoad %20 %4 %40 = OpAccessChain %23 %7 %21 %39 %41 = OpLoad %14 %40 OpStore %3 %41 %42 = OpAccessChain %15 %5 %25 OpStore %42 %28 OpBranch %34 ; CHECK: [[sel_merge]] = OpLabel %37 = OpLabel ; CHECK-NEXT: OpBranch [[merge]] OpUnreachable %35 = OpLabel OpBranch %30 %34 = OpLabel OpBranch %32 %33 = OpLabel OpBranch %31 %32 = OpLabel OpReturn OpFunctionEnd)"; SinglePassRunAndMatch(text, false); } TEST_F(Workaround1209Test, RemoveOpUnreachableInAdjacentLoops) { const std::string text = R"( OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Vertex %2 "main" %3 %4 %5 OpSource GLSL 400 OpSourceExtension "GL_ARB_separate_shader_objects" OpSourceExtension "GL_ARB_shading_language_420pack" OpName %2 "main" OpName %3 "texcoord" OpName %6 "buf" OpMemberName %6 0 "MVP" OpMemberName %6 1 "position" OpMemberName %6 2 "attr" OpName %7 "ubuf" OpName %4 "gl_VertexIndex" OpName %8 "gl_PerVertex" OpMemberName %8 0 "gl_Position" OpName %5 "" OpDecorate %3 Location 0 OpDecorate %9 ArrayStride 16 OpDecorate %10 ArrayStride 16 OpMemberDecorate %6 0 ColMajor OpMemberDecorate %6 0 Offset 0 OpMemberDecorate %6 0 MatrixStride 16 OpMemberDecorate %6 1 Offset 64 OpMemberDecorate %6 2 Offset 1216 OpDecorate %6 Block OpDecorate %7 DescriptorSet 0 OpDecorate %7 Binding 0 OpDecorate %4 BuiltIn VertexIndex OpMemberDecorate %8 0 BuiltIn Position OpDecorate %8 Block %11 = OpTypeVoid %12 = OpTypeFunction %11 %13 = OpTypeFloat 32 %14 = OpTypeVector %13 4 %15 = OpTypePointer Output %14 %3 = OpVariable %15 Output %16 = OpTypeMatrix %14 4 %17 = OpTypeInt 32 0 %18 = OpConstant %17 72 %9 = OpTypeArray %14 %18 %10 = OpTypeArray %14 %18 %6 = OpTypeStruct %16 %9 %10 %19 = OpTypePointer Uniform %6 %7 = OpVariable %19 Uniform %20 = OpTypeInt 32 1 %21 = OpConstant %20 2 %22 = OpTypePointer Input %20 %4 = OpVariable %22 Input %23 = OpTypePointer Uniform %14 %8 = OpTypeStruct %14 %24 = OpTypePointer Output %8 %5 = OpVariable %24 Output %25 = OpConstant %20 0 %26 = OpConstant %20 1 %27 = OpConstant %13 1 %28 = OpConstantComposite %14 %27 %27 %27 %27 %2 = OpFunction %11 None %12 %29 = OpLabel OpBranch %30 %30 = OpLabel ; CHECK: OpLoopMerge [[merge1:%[a-zA-Z_\d]+]] OpLoopMerge %31 %32 None OpBranch %33 %33 = OpLabel ; CHECK: OpSelectionMerge [[sel_merge1:%[a-zA-Z_\d]+]] OpSelectionMerge %34 None OpSwitch %26 %35 %35 = OpLabel %36 = OpLoad %20 %4 %37 = OpAccessChain %23 %7 %21 %36 %38 = OpLoad %14 %37 OpStore %3 %38 %39 = OpAccessChain %15 %5 %25 OpStore %39 %28 OpBranch %31 ; CHECK: [[sel_merge1]] = OpLabel %34 = OpLabel ; CHECK-NEXT: OpBranch [[merge1]] OpUnreachable %32 = OpLabel OpBranch %30 %31 = OpLabel ; CHECK: OpLoopMerge [[merge2:%[a-zA-Z_\d]+]] OpLoopMerge %40 %41 None OpBranch %42 %42 = OpLabel ; CHECK: OpSelectionMerge [[sel_merge2:%[a-zA-Z_\d]+]] OpSelectionMerge %43 None OpSwitch %26 %44 %44 = OpLabel %45 = OpLoad %20 %4 %46 = OpAccessChain %23 %7 %21 %45 %47 = OpLoad %14 %46 OpStore %3 %47 %48 = OpAccessChain %15 %5 %25 OpStore %48 %28 OpBranch %40 ; CHECK: [[sel_merge2]] = OpLabel %43 = OpLabel ; CHECK-NEXT: OpBranch [[merge2]] OpUnreachable %41 = OpLabel OpBranch %31 %40 = OpLabel OpReturn OpFunctionEnd)"; SinglePassRunAndMatch(text, false); } TEST_F(Workaround1209Test, LeaveUnreachableNotInLoop) { const std::string text = R"( OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Vertex %main "main" %texcoord %gl_VertexIndex %_ OpSource GLSL 400 OpSourceExtension "GL_ARB_separate_shader_objects" OpSourceExtension "GL_ARB_shading_language_420pack" OpName %main "main" OpName %texcoord "texcoord" OpName %buf "buf" OpMemberName %buf 0 "MVP" OpMemberName %buf 1 "position" OpMemberName %buf 2 "attr" OpName %ubuf "ubuf" OpName %gl_VertexIndex "gl_VertexIndex" OpName %gl_PerVertex "gl_PerVertex" OpMemberName %gl_PerVertex 0 "gl_Position" OpName %_ "" OpDecorate %texcoord Location 0 OpDecorate %_arr_v4float_uint_72 ArrayStride 16 OpDecorate %_arr_v4float_uint_72_0 ArrayStride 16 OpMemberDecorate %buf 0 ColMajor OpMemberDecorate %buf 0 Offset 0 OpMemberDecorate %buf 0 MatrixStride 16 OpMemberDecorate %buf 1 Offset 64 OpMemberDecorate %buf 2 Offset 1216 OpDecorate %buf Block OpDecorate %ubuf DescriptorSet 0 OpDecorate %ubuf Binding 0 OpDecorate %gl_VertexIndex BuiltIn VertexIndex OpMemberDecorate %gl_PerVertex 0 BuiltIn Position OpDecorate %gl_PerVertex Block %void = OpTypeVoid %12 = OpTypeFunction %void %float = OpTypeFloat 32 %v4float = OpTypeVector %float 4 %_ptr_Output_v4float = OpTypePointer Output %v4float %texcoord = OpVariable %_ptr_Output_v4float Output %mat4v4float = OpTypeMatrix %v4float 4 %uint = OpTypeInt 32 0 %uint_72 = OpConstant %uint 72 %_arr_v4float_uint_72 = OpTypeArray %v4float %uint_72 %_arr_v4float_uint_72_0 = OpTypeArray %v4float %uint_72 %buf = OpTypeStruct %mat4v4float %_arr_v4float_uint_72 %_arr_v4float_uint_72_0 %_ptr_Uniform_buf = OpTypePointer Uniform %buf %ubuf = OpVariable %_ptr_Uniform_buf Uniform %int = OpTypeInt 32 1 %int_2 = OpConstant %int 2 %_ptr_Input_int = OpTypePointer Input %int %gl_VertexIndex = OpVariable %_ptr_Input_int Input %_ptr_Uniform_v4float = OpTypePointer Uniform %v4float %gl_PerVertex = OpTypeStruct %v4float %_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex %_ = OpVariable %_ptr_Output_gl_PerVertex Output %int_0 = OpConstant %int 0 %int_1 = OpConstant %int 1 %float_1 = OpConstant %float 1 %28 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1 %main = OpFunction %void None %12 %29 = OpLabel OpBranch %30 %30 = OpLabel OpSelectionMerge %34 None OpSwitch %int_1 %35 %35 = OpLabel %36 = OpLoad %int %gl_VertexIndex %37 = OpAccessChain %_ptr_Uniform_v4float %ubuf %int_2 %36 %38 = OpLoad %v4float %37 OpStore %texcoord %38 %39 = OpAccessChain %_ptr_Output_v4float %_ %int_0 OpStore %39 %28 OpReturn %34 = OpLabel ; CHECK: OpUnreachable OpUnreachable OpFunctionEnd)"; SinglePassRunAndMatch(text, false); } #endif } // anonymous namespace