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Diffstat (limited to 'test/opt/eliminate_dead_output_stores_test.cpp')
| -rw-r--r-- | test/opt/eliminate_dead_output_stores_test.cpp | 952 |
1 files changed, 952 insertions, 0 deletions
diff --git a/test/opt/eliminate_dead_output_stores_test.cpp b/test/opt/eliminate_dead_output_stores_test.cpp new file mode 100644 index 000000000..6e382c243 --- /dev/null +++ b/test/opt/eliminate_dead_output_stores_test.cpp @@ -0,0 +1,952 @@ +// Copyright (c) 2022 The Khronos Group Inc. +// Copyright (c) 2022 LunarG 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 <unordered_set> + +#include "gmock/gmock.h" +#include "test/opt/pass_fixture.h" +#include "test/opt/pass_utils.h" + +namespace spvtools { +namespace opt { +namespace { + +using ElimDeadOutputStoresTest = PassTest<::testing::Test>; + +TEST_F(ElimDeadOutputStoresTest, VertMultipleLocations) { + // #version 450 + // + // layout(location = 2) out Vertex + // { + // vec4 color0; + // vec4 color1; + // vec4 color2[3]; + // } oVert; + // + // void main() + // { + // oVert.color0 = vec4(0.0,0.0,0.0,0.0); + // oVert.color1 = vec4(0.1,0.0,0.0,0.0); + // oVert.color2[0] = vec4(0.2,0.0,0.0,0.0); + // oVert.color2[1] = vec4(0.3,0.0,0.0,0.0); + // oVert.color2[2] = vec4(0.4,0.0,0.0,0.0); + // } + const std::string text = R"( + OpCapability Shader + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint Vertex %main "main" %oVert + OpSource GLSL 450 + OpName %main "main" + OpName %Vertex "Vertex" + OpMemberName %Vertex 0 "color0" + OpMemberName %Vertex 1 "color1" + OpMemberName %Vertex 2 "color2" + OpName %oVert "oVert" + OpDecorate %Vertex Block + OpDecorate %oVert Location 2 + %void = OpTypeVoid + %3 = OpTypeFunction %void + %float = OpTypeFloat 32 + %v4float = OpTypeVector %float 4 + %uint = OpTypeInt 32 0 + %uint_3 = OpConstant %uint 3 +%_arr_v4float_uint_3 = OpTypeArray %v4float %uint_3 + %Vertex = OpTypeStruct %v4float %v4float %_arr_v4float_uint_3 +%_ptr_Output_Vertex = OpTypePointer Output %Vertex + %oVert = OpVariable %_ptr_Output_Vertex Output + %int = OpTypeInt 32 1 + %int_0 = OpConstant %int 0 + %float_0 = OpConstant %float 0 + %17 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0 +%_ptr_Output_v4float = OpTypePointer Output %v4float + %int_1 = OpConstant %int 1 +%float_0_100000001 = OpConstant %float 0.100000001 + %22 = OpConstantComposite %v4float %float_0_100000001 %float_0 %float_0 %float_0 + %int_2 = OpConstant %int 2 +%float_0_200000003 = OpConstant %float 0.200000003 + %26 = OpConstantComposite %v4float %float_0_200000003 %float_0 %float_0 %float_0 +%float_0_300000012 = OpConstant %float 0.300000012 + %29 = OpConstantComposite %v4float %float_0_300000012 %float_0 %float_0 %float_0 +%float_0_400000006 = OpConstant %float 0.400000006 + %32 = OpConstantComposite %v4float %float_0_400000006 %float_0 %float_0 %float_0 + %main = OpFunction %void None %3 + %5 = OpLabel + %19 = OpAccessChain %_ptr_Output_v4float %oVert %int_0 + OpStore %19 %17 +;CHECK: OpStore %19 %17 + %23 = OpAccessChain %_ptr_Output_v4float %oVert %int_1 + OpStore %23 %22 +;CHECK-NOT: OpStore %23 %22 + %27 = OpAccessChain %_ptr_Output_v4float %oVert %int_2 %int_0 + OpStore %27 %26 +;CHECK-NOT: OpStore %27 %26 + %30 = OpAccessChain %_ptr_Output_v4float %oVert %int_2 %int_1 + OpStore %30 %29 +;CHECK: OpStore %30 %29 + %33 = OpAccessChain %_ptr_Output_v4float %oVert %int_2 %int_2 + OpStore %33 %32 +;CHECK-NOT: OpStore %33 %32 + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + live_inputs.insert(2); + live_inputs.insert(5); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +TEST_F(ElimDeadOutputStoresTest, VertMatrix) { + // #version 450 + // + // layout(location = 2) out Vertex + // { + // vec4 color0; + // vec4 color1; + // mat4 color2; + // mat4 color3; + // mat4 color4; + // } oVert; + // + // void main() + // { + // oVert.color0 = vec4(0.0,0.0,0.0,0.0); + // oVert.color1 = vec4(0.1,0.0,0.0,0.0); + // oVert.color2[2] = vec4(0.2,0.0,0.0,0.0); + // oVert.color3[1] = vec4(0.3,0.0,0.0,0.0); + // oVert.color4[0] = vec4(0.4,0.0,0.0,0.0); + // } + const std::string text = R"( + OpCapability Shader + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint Vertex %main "main" %oVert + OpSource GLSL 450 + OpName %main "main" + OpName %Vertex "Vertex" + OpMemberName %Vertex 0 "color0" + OpMemberName %Vertex 1 "color1" + OpMemberName %Vertex 2 "color2" + OpMemberName %Vertex 3 "color3" + OpMemberName %Vertex 4 "color4" + OpName %oVert "oVert" + OpDecorate %Vertex Block + OpDecorate %oVert Location 2 + %void = OpTypeVoid + %3 = OpTypeFunction %void + %float = OpTypeFloat 32 + %v4float = OpTypeVector %float 4 +%mat4v4float = OpTypeMatrix %v4float 4 + %Vertex = OpTypeStruct %v4float %v4float %mat4v4float %mat4v4float %mat4v4float +%_ptr_Output_Vertex = OpTypePointer Output %Vertex + %oVert = OpVariable %_ptr_Output_Vertex Output + %int = OpTypeInt 32 1 + %int_0 = OpConstant %int 0 + %float_0 = OpConstant %float 0 + %15 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0 +%_ptr_Output_v4float = OpTypePointer Output %v4float + %int_1 = OpConstant %int 1 +%float_0_100000001 = OpConstant %float 0.100000001 + %20 = OpConstantComposite %v4float %float_0_100000001 %float_0 %float_0 %float_0 + %int_2 = OpConstant %int 2 +%float_0_200000003 = OpConstant %float 0.200000003 + %24 = OpConstantComposite %v4float %float_0_200000003 %float_0 %float_0 %float_0 + %int_3 = OpConstant %int 3 +%float_0_300000012 = OpConstant %float 0.300000012 + %28 = OpConstantComposite %v4float %float_0_300000012 %float_0 %float_0 %float_0 + %int_4 = OpConstant %int 4 +%float_0_400000006 = OpConstant %float 0.400000006 + %32 = OpConstantComposite %v4float %float_0_400000006 %float_0 %float_0 %float_0 + %main = OpFunction %void None %3 + %5 = OpLabel + %17 = OpAccessChain %_ptr_Output_v4float %oVert %int_0 + OpStore %17 %15 +; CHECK: OpStore %17 %15 + %21 = OpAccessChain %_ptr_Output_v4float %oVert %int_1 + OpStore %21 %20 +; CHECK-NOT: OpStore %21 %20 + %25 = OpAccessChain %_ptr_Output_v4float %oVert %int_2 %int_2 + OpStore %25 %24 +; CHECK-NOT: OpStore %25 %24 + %29 = OpAccessChain %_ptr_Output_v4float %oVert %int_3 %int_1 + OpStore %29 %28 +; CHECK: OpStore %29 %28 + %33 = OpAccessChain %_ptr_Output_v4float %oVert %int_4 %int_0 + OpStore %33 %32 +; CHECK-NOT: OpStore %33 %32 + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + live_inputs.insert(2); + live_inputs.insert(8); + live_inputs.insert(9); + live_inputs.insert(10); + live_inputs.insert(11); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +TEST_F(ElimDeadOutputStoresTest, VertMemberLocs) { + // #version 450 + // + // out Vertex + // { + // layout (location = 1) vec4 Cd; + // layout (location = 0) vec2 uv; + // } oVert; + // + // layout (location = 0) in vec3 P; + // + // void main() + // { + // oVert.uv = vec2(0.1, 0.7); + // oVert.Cd = vec4(1, 0.5, 0, 1); + // gl_Position = vec4(P, 1); + // } + const std::string text = R"( + OpCapability Shader + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint Vertex %main "main" %oVert %_ %P + OpSource GLSL 450 + OpName %main "main" + OpName %Vertex "Vertex" + OpMemberName %Vertex 0 "Cd" + OpMemberName %Vertex 1 "uv" + OpName %oVert "oVert" + OpName %gl_PerVertex "gl_PerVertex" + OpMemberName %gl_PerVertex 0 "gl_Position" + OpMemberName %gl_PerVertex 1 "gl_PointSize" + OpMemberName %gl_PerVertex 2 "gl_ClipDistance" + OpMemberName %gl_PerVertex 3 "gl_CullDistance" + OpName %_ "" + OpName %P "P" + OpMemberDecorate %Vertex 0 Location 1 + OpMemberDecorate %Vertex 1 Location 0 + OpDecorate %Vertex Block + OpMemberDecorate %gl_PerVertex 0 BuiltIn Position + OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize + OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance + OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance + OpDecorate %gl_PerVertex Block + OpDecorate %P Location 0 + %void = OpTypeVoid + %3 = OpTypeFunction %void + %float = OpTypeFloat 32 + %v4float = OpTypeVector %float 4 + %v2float = OpTypeVector %float 2 + %Vertex = OpTypeStruct %v4float %v2float +%_ptr_Output_Vertex = OpTypePointer Output %Vertex + %oVert = OpVariable %_ptr_Output_Vertex Output + %int = OpTypeInt 32 1 + %int_1 = OpConstant %int 1 +%float_0_100000001 = OpConstant %float 0.100000001 +%float_0_699999988 = OpConstant %float 0.699999988 + %16 = OpConstantComposite %v2float %float_0_100000001 %float_0_699999988 +%_ptr_Output_v2float = OpTypePointer Output %v2float + %int_0 = OpConstant %int 0 + %float_1 = OpConstant %float 1 + %float_0_5 = OpConstant %float 0.5 + %float_0 = OpConstant %float 0 + %23 = OpConstantComposite %v4float %float_1 %float_0_5 %float_0 %float_1 +%_ptr_Output_v4float = OpTypePointer Output %v4float + %uint = OpTypeInt 32 0 + %uint_1 = OpConstant %uint 1 +%_arr_float_uint_1 = OpTypeArray %float %uint_1 +%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1 +%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex + %_ = OpVariable %_ptr_Output_gl_PerVertex Output + %v3float = OpTypeVector %float 3 +%_ptr_Input_v3float = OpTypePointer Input %v3float + %P = OpVariable %_ptr_Input_v3float Input + %main = OpFunction %void None %3 + %5 = OpLabel + %18 = OpAccessChain %_ptr_Output_v2float %oVert %int_1 + OpStore %18 %16 +; CHECK-NOT: OpStore %18 %16 + %25 = OpAccessChain %_ptr_Output_v4float %oVert %int_0 + OpStore %25 %23 +; CHECK: OpStore %25 %23 + %35 = OpLoad %v3float %P + %36 = OpCompositeExtract %float %35 0 + %37 = OpCompositeExtract %float %35 1 + %38 = OpCompositeExtract %float %35 2 + %39 = OpCompositeConstruct %v4float %36 %37 %38 %float_1 + %40 = OpAccessChain %_ptr_Output_v4float %_ %int_0 + OpStore %40 %39 + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + live_inputs.insert(1); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +TEST_F(ElimDeadOutputStoresTest, ArrayedOutput) { + // Tests elimination of arrayed output as seen in Tesc shaders. + // + // #version 450 + // + // layout (vertices = 4) out; + // + // layout (location = 0) in vec3 N[]; + // layout (location = 1) in vec3 P[]; + // + // layout (location = 5) out Vertex + // { + // vec4 c; + // vec3 n; + // vec3 f[10]; + // } oVert[]; + // + // void main() + // { + // oVert[gl_InvocationID].c = vec4(1, 0, 0, 1); + // oVert[gl_InvocationID].n = N[gl_InvocationID]; + // oVert[gl_InvocationID].f[3] = vec3(0, 1, 0); + // vec4 worldSpacePos = vec4(P[gl_InvocationID], 1); + // gl_out[gl_InvocationID].gl_Position = worldSpacePos; + // } + const std::string text = R"( + OpCapability Tessellation + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint TessellationControl %main "main" %oVert %gl_InvocationID %N %P %gl_out + OpExecutionMode %main OutputVertices 4 + OpSource GLSL 450 + OpName %main "main" + OpName %Vertex "Vertex" + OpMemberName %Vertex 0 "c" + OpMemberName %Vertex 1 "n" + OpMemberName %Vertex 2 "f" + OpName %oVert "oVert" + OpName %gl_InvocationID "gl_InvocationID" + OpName %N "N" + OpName %P "P" + OpName %gl_PerVertex "gl_PerVertex" + OpMemberName %gl_PerVertex 0 "gl_Position" + OpMemberName %gl_PerVertex 1 "gl_PointSize" + OpMemberName %gl_PerVertex 2 "gl_ClipDistance" + OpMemberName %gl_PerVertex 3 "gl_CullDistance" + OpName %gl_out "gl_out" + OpDecorate %Vertex Block + OpDecorate %oVert Location 5 + OpDecorate %gl_InvocationID BuiltIn InvocationId + OpDecorate %N Location 0 + OpDecorate %P Location 1 + OpMemberDecorate %gl_PerVertex 0 BuiltIn Position + OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize + OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance + OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance + OpDecorate %gl_PerVertex Block + %void = OpTypeVoid + %3 = OpTypeFunction %void + %float = OpTypeFloat 32 + %v4float = OpTypeVector %float 4 + %v3float = OpTypeVector %float 3 + %uint = OpTypeInt 32 0 + %uint_10 = OpConstant %uint 10 +%_arr_v3float_uint_10 = OpTypeArray %v3float %uint_10 + %Vertex = OpTypeStruct %v4float %v3float %_arr_v3float_uint_10 + %uint_4 = OpConstant %uint 4 +%_arr_Vertex_uint_4 = OpTypeArray %Vertex %uint_4 +%_ptr_Output__arr_Vertex_uint_4 = OpTypePointer Output %_arr_Vertex_uint_4 + %oVert = OpVariable %_ptr_Output__arr_Vertex_uint_4 Output + %int = OpTypeInt 32 1 +%_ptr_Input_int = OpTypePointer Input %int +%gl_InvocationID = OpVariable %_ptr_Input_int Input + %int_0 = OpConstant %int 0 + %float_1 = OpConstant %float 1 + %float_0 = OpConstant %float 0 + %24 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1 +%_ptr_Output_v4float = OpTypePointer Output %v4float + %int_1 = OpConstant %int 1 + %uint_32 = OpConstant %uint 32 +%_arr_v3float_uint_32 = OpTypeArray %v3float %uint_32 +%_ptr_Input__arr_v3float_uint_32 = OpTypePointer Input %_arr_v3float_uint_32 + %N = OpVariable %_ptr_Input__arr_v3float_uint_32 Input +%_ptr_Input_v3float = OpTypePointer Input %v3float +%_ptr_Output_v3float = OpTypePointer Output %v3float + %int_2 = OpConstant %int 2 + %int_3 = OpConstant %int 3 + %42 = OpConstantComposite %v3float %float_0 %float_1 %float_0 + %P = OpVariable %_ptr_Input__arr_v3float_uint_32 Input + %uint_1 = OpConstant %uint 1 +%_arr_float_uint_1 = OpTypeArray %float %uint_1 +%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1 +%_arr_gl_PerVertex_uint_4 = OpTypeArray %gl_PerVertex %uint_4 +%_ptr_Output__arr_gl_PerVertex_uint_4 = OpTypePointer Output %_arr_gl_PerVertex_uint_4 + %gl_out = OpVariable %_ptr_Output__arr_gl_PerVertex_uint_4 Output + %main = OpFunction %void None %3 + %5 = OpLabel + %20 = OpLoad %int %gl_InvocationID + %26 = OpAccessChain %_ptr_Output_v4float %oVert %20 %int_0 + OpStore %26 %24 +; CHECK: OpStore %26 %24 + %35 = OpAccessChain %_ptr_Input_v3float %N %20 + %36 = OpLoad %v3float %35 + %38 = OpAccessChain %_ptr_Output_v3float %oVert %20 %int_1 + OpStore %38 %36 +; CHECK-NOT: OpStore %38 %36 + %43 = OpAccessChain %_ptr_Output_v3float %oVert %20 %int_2 %int_3 + OpStore %43 %42 +; CHECK: OpStore %43 %42 + %48 = OpAccessChain %_ptr_Input_v3float %P %20 + %49 = OpLoad %v3float %48 + %50 = OpCompositeExtract %float %49 0 + %51 = OpCompositeExtract %float %49 1 + %52 = OpCompositeExtract %float %49 2 + %53 = OpCompositeConstruct %v4float %50 %51 %52 %float_1 + %62 = OpAccessChain %_ptr_Output_v4float %gl_out %20 %int_0 + OpStore %62 %53 + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + live_inputs.insert(5); + live_inputs.insert(10); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +TEST_F(ElimDeadOutputStoresTest, ArrayedOutputMemberLocs) { + // Tests elimination of member location with arrayed output as seen in + // Tesc shaders. + // + // #version 450 + // + // layout (vertices = 4) out; + // + // layout (location = 0) in vec3 N[]; + // layout (location = 1) in vec3 P[]; + // + // out Vertex + // { + // layout (location = 1) vec4 c; + // layout (location = 3) vec3 n; + // layout (location = 5) vec3 f[10]; + // } oVert[]; + // + // void main() + // { + // oVert[gl_InvocationID].c = vec4(1, 0, 0, 1); + // oVert[gl_InvocationID].n = N[gl_InvocationID]; + // oVert[gl_InvocationID].f[3] = vec3(0, 1, 0); + // vec4 worldSpacePos = vec4(P[gl_InvocationID], 1); + // gl_out[gl_InvocationID].gl_Position = worldSpacePos; + // } + const std::string text = R"( + OpCapability Tessellation + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint TessellationControl %main "main" %oVert %gl_InvocationID %N %P %gl_out + OpExecutionMode %main OutputVertices 4 + OpSource GLSL 450 + OpName %main "main" + OpName %Vertex "Vertex" + OpMemberName %Vertex 0 "c" + OpMemberName %Vertex 1 "n" + OpMemberName %Vertex 2 "f" + OpName %oVert "oVert" + OpName %gl_InvocationID "gl_InvocationID" + OpName %N "N" + OpName %P "P" + OpName %gl_PerVertex "gl_PerVertex" + OpMemberName %gl_PerVertex 0 "gl_Position" + OpMemberName %gl_PerVertex 1 "gl_PointSize" + OpMemberName %gl_PerVertex 2 "gl_ClipDistance" + OpMemberName %gl_PerVertex 3 "gl_CullDistance" + OpName %gl_out "gl_out" + OpMemberDecorate %Vertex 0 Location 1 + OpMemberDecorate %Vertex 1 Location 3 + OpMemberDecorate %Vertex 2 Location 5 + OpDecorate %Vertex Block + OpDecorate %gl_InvocationID BuiltIn InvocationId + OpDecorate %N Location 0 + OpDecorate %P Location 1 + OpMemberDecorate %gl_PerVertex 0 BuiltIn Position + OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize + OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance + OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance + OpDecorate %gl_PerVertex Block + %void = OpTypeVoid + %3 = OpTypeFunction %void + %float = OpTypeFloat 32 + %v4float = OpTypeVector %float 4 + %v3float = OpTypeVector %float 3 + %uint = OpTypeInt 32 0 + %uint_10 = OpConstant %uint 10 +%_arr_v3float_uint_10 = OpTypeArray %v3float %uint_10 + %Vertex = OpTypeStruct %v4float %v3float %_arr_v3float_uint_10 + %uint_4 = OpConstant %uint 4 +%_arr_Vertex_uint_4 = OpTypeArray %Vertex %uint_4 +%_ptr_Output__arr_Vertex_uint_4 = OpTypePointer Output %_arr_Vertex_uint_4 + %oVert = OpVariable %_ptr_Output__arr_Vertex_uint_4 Output + %int = OpTypeInt 32 1 +%_ptr_Input_int = OpTypePointer Input %int +%gl_InvocationID = OpVariable %_ptr_Input_int Input + %int_0 = OpConstant %int 0 + %float_1 = OpConstant %float 1 + %float_0 = OpConstant %float 0 + %24 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1 +%_ptr_Output_v4float = OpTypePointer Output %v4float + %int_1 = OpConstant %int 1 + %uint_32 = OpConstant %uint 32 +%_arr_v3float_uint_32 = OpTypeArray %v3float %uint_32 +%_ptr_Input__arr_v3float_uint_32 = OpTypePointer Input %_arr_v3float_uint_32 + %N = OpVariable %_ptr_Input__arr_v3float_uint_32 Input +%_ptr_Input_v3float = OpTypePointer Input %v3float +%_ptr_Output_v3float = OpTypePointer Output %v3float + %int_2 = OpConstant %int 2 + %int_3 = OpConstant %int 3 + %42 = OpConstantComposite %v3float %float_0 %float_1 %float_0 + %P = OpVariable %_ptr_Input__arr_v3float_uint_32 Input + %uint_1 = OpConstant %uint 1 +%_arr_float_uint_1 = OpTypeArray %float %uint_1 +%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1 +%_arr_gl_PerVertex_uint_4 = OpTypeArray %gl_PerVertex %uint_4 +%_ptr_Output__arr_gl_PerVertex_uint_4 = OpTypePointer Output %_arr_gl_PerVertex_uint_4 + %gl_out = OpVariable %_ptr_Output__arr_gl_PerVertex_uint_4 Output + %main = OpFunction %void None %3 + %5 = OpLabel + %20 = OpLoad %int %gl_InvocationID + %26 = OpAccessChain %_ptr_Output_v4float %oVert %20 %int_0 + OpStore %26 %24 +;CHECK: OpStore %26 %24 + %35 = OpAccessChain %_ptr_Input_v3float %N %20 + %36 = OpLoad %v3float %35 + %38 = OpAccessChain %_ptr_Output_v3float %oVert %20 %int_1 + OpStore %38 %36 +;CHECK-NOT: OpStore %38 %36 + %43 = OpAccessChain %_ptr_Output_v3float %oVert %20 %int_2 %int_3 + OpStore %43 %42 +;CHECK: OpStore %43 %42 + %48 = OpAccessChain %_ptr_Input_v3float %P %20 + %49 = OpLoad %v3float %48 + %50 = OpCompositeExtract %float %49 0 + %51 = OpCompositeExtract %float %49 1 + %52 = OpCompositeExtract %float %49 2 + %53 = OpCompositeConstruct %v4float %50 %51 %52 %float_1 + %62 = OpAccessChain %_ptr_Output_v4float %gl_out %20 %int_0 + OpStore %62 %53 + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + live_inputs.insert(1); + live_inputs.insert(8); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +TEST_F(ElimDeadOutputStoresTest, ScalarBuiltins) { + // Tests elimination of scalar builtins as seen in vert shaders. + // + // #version 460 + // + // layout (location = 0) in vec3 P; + // + // void main() + // { + // gl_Position = vec4(P, 1.0); + // gl_PointSize = 1.0; + // } + const std::string text = R"( + OpCapability Shader + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint Vertex %main "main" %_ %P + OpSource GLSL 460 + OpName %main "main" + OpName %gl_PerVertex "gl_PerVertex" + OpMemberName %gl_PerVertex 0 "gl_Position" + OpMemberName %gl_PerVertex 1 "gl_PointSize" + OpMemberName %gl_PerVertex 2 "gl_ClipDistance" + OpMemberName %gl_PerVertex 3 "gl_CullDistance" + OpName %_ "" + OpName %P "P" + OpMemberDecorate %gl_PerVertex 0 BuiltIn Position + OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize + OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance + OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance + OpDecorate %gl_PerVertex Block + OpDecorate %P Location 0 + %void = OpTypeVoid + %3 = OpTypeFunction %void + %float = OpTypeFloat 32 + %v4float = OpTypeVector %float 4 + %uint = OpTypeInt 32 0 + %uint_1 = OpConstant %uint 1 +%_arr_float_uint_1 = OpTypeArray %float %uint_1 +%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1 +%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex + %_ = OpVariable %_ptr_Output_gl_PerVertex Output + %int = OpTypeInt 32 1 + %int_0 = OpConstant %int 0 + %v3float = OpTypeVector %float 3 +%_ptr_Input_v3float = OpTypePointer Input %v3float + %P = OpVariable %_ptr_Input_v3float Input + %float_1 = OpConstant %float 1 +%_ptr_Output_v4float = OpTypePointer Output %v4float + %int_1 = OpConstant %int 1 +%_ptr_Output_float = OpTypePointer Output %float + %main = OpFunction %void None %3 + %5 = OpLabel + %19 = OpLoad %v3float %P + %21 = OpCompositeExtract %float %19 0 + %22 = OpCompositeExtract %float %19 1 + %23 = OpCompositeExtract %float %19 2 + %24 = OpCompositeConstruct %v4float %21 %22 %23 %float_1 + %26 = OpAccessChain %_ptr_Output_v4float %_ %int_0 + OpStore %26 %24 +;CHECK: OpStore %26 %24 + %29 = OpAccessChain %_ptr_Output_float %_ %int_1 + OpStore %29 %float_1 +;CHECK-NOT: OpStore %29 %float_1 + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + // Omit SpvBuiltInPointSize + live_builtins.insert(SpvBuiltInClipDistance); + live_builtins.insert(SpvBuiltInCullDistance); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +TEST_F(ElimDeadOutputStoresTest, ArrayedBuiltins) { + // Tests elimination of arrayed builtins as seen in geom, tesc, and tese + // shaders. + // + // #version 460 + // + // layout(triangle_strip, max_vertices = 3) out; + // layout(triangles) in; + // + // void main() + // { + // for (int i = 0; i < 3; i++) + // { + // gl_Position = gl_in[i].gl_Position; + // gl_PointSize = gl_in[i].gl_PointSize; + // + // EmitVertex(); + // } + // + // EndPrimitive(); + // } + const std::string text = R"( + OpCapability Geometry + OpCapability GeometryPointSize + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint Geometry %main "main" %_ %gl_in + OpExecutionMode %main Triangles + OpExecutionMode %main Invocations 1 + OpExecutionMode %main OutputTriangleStrip + OpExecutionMode %main OutputVertices 3 + OpSource GLSL 460 + OpName %main "main" + OpName %i "i" + OpName %gl_PerVertex "gl_PerVertex" + OpMemberName %gl_PerVertex 0 "gl_Position" + OpMemberName %gl_PerVertex 1 "gl_PointSize" + OpMemberName %gl_PerVertex 2 "gl_ClipDistance" + OpMemberName %gl_PerVertex 3 "gl_CullDistance" + OpName %_ "" + OpName %gl_PerVertex_0 "gl_PerVertex" + OpMemberName %gl_PerVertex_0 0 "gl_Position" + OpMemberName %gl_PerVertex_0 1 "gl_PointSize" + OpMemberName %gl_PerVertex_0 2 "gl_ClipDistance" + OpMemberName %gl_PerVertex_0 3 "gl_CullDistance" + OpName %gl_in "gl_in" + OpMemberDecorate %gl_PerVertex 0 BuiltIn Position + OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize + OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance + OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance + OpDecorate %gl_PerVertex Block + OpMemberDecorate %gl_PerVertex_0 0 BuiltIn Position + OpMemberDecorate %gl_PerVertex_0 1 BuiltIn PointSize + OpMemberDecorate %gl_PerVertex_0 2 BuiltIn ClipDistance + OpMemberDecorate %gl_PerVertex_0 3 BuiltIn CullDistance + OpDecorate %gl_PerVertex_0 Block + %void = OpTypeVoid + %3 = OpTypeFunction %void + %int = OpTypeInt 32 1 +%_ptr_Function_int = OpTypePointer Function %int + %int_0 = OpConstant %int 0 + %int_3 = OpConstant %int 3 + %bool = OpTypeBool + %float = OpTypeFloat 32 + %v4float = OpTypeVector %float 4 + %uint = OpTypeInt 32 0 + %uint_1 = OpConstant %uint 1 +%_arr_float_uint_1 = OpTypeArray %float %uint_1 +%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1 +%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex + %_ = OpVariable %_ptr_Output_gl_PerVertex Output +%gl_PerVertex_0 = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1 + %uint_3 = OpConstant %uint 3 +%_arr_gl_PerVertex_0_uint_3 = OpTypeArray %gl_PerVertex_0 %uint_3 +%_ptr_Input__arr_gl_PerVertex_0_uint_3 = OpTypePointer Input %_arr_gl_PerVertex_0_uint_3 + %gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_0_uint_3 Input +%_ptr_Input_v4float = OpTypePointer Input %v4float +%_ptr_Output_v4float = OpTypePointer Output %v4float + %int_1 = OpConstant %int 1 +%_ptr_Input_float = OpTypePointer Input %float +%_ptr_Output_float = OpTypePointer Output %float + %main = OpFunction %void None %3 + %5 = OpLabel + %i = OpVariable %_ptr_Function_int Function + OpStore %i %int_0 + OpBranch %10 + %10 = OpLabel + OpLoopMerge %12 %13 None + OpBranch %14 + %14 = OpLabel + %15 = OpLoad %int %i + %18 = OpSLessThan %bool %15 %int_3 + OpBranchConditional %18 %11 %12 + %11 = OpLabel + %32 = OpLoad %int %i + %34 = OpAccessChain %_ptr_Input_v4float %gl_in %32 %int_0 + %35 = OpLoad %v4float %34 + %37 = OpAccessChain %_ptr_Output_v4float %_ %int_0 + OpStore %37 %35 +;CHECK: OpStore %37 %35 + %39 = OpLoad %int %i + %41 = OpAccessChain %_ptr_Input_float %gl_in %39 %int_1 + %42 = OpLoad %float %41 + %44 = OpAccessChain %_ptr_Output_float %_ %int_1 + OpStore %44 %42 +;CHECK-NOT: OpStore %44 %42 + OpEmitVertex + OpBranch %13 + %13 = OpLabel + %45 = OpLoad %int %i + %46 = OpIAdd %int %45 %int_1 + OpStore %i %46 + OpBranch %10 + %12 = OpLabel + OpEndPrimitive + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + // Omit SpvBuiltInPointSize + live_builtins.insert(SpvBuiltInClipDistance); + live_builtins.insert(SpvBuiltInCullDistance); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +TEST_F(ElimDeadOutputStoresTest, ArrayedOutputPatchLocs) { + // Tests elimination of location with arrayed patch output as seen in + // Tesc shaders. + // + // #version 450 core + // + // layout(vertices = 4) out; + // + // layout(location=0) patch out float patchOut0[2]; + // layout(location=2) patch out float patchOut1[2]; + // + // void main() + // { + // patchOut0[1] = 0.0; // Dead loc 1 + // patchOut1[1] = 1.0; // Live loc 3 + // } + const std::string text = R"( + OpCapability Tessellation + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint TessellationControl %main "main" %patchOut0 %patchOut1 + OpExecutionMode %main OutputVertices 4 + OpSource GLSL 450 + OpName %main "main" + OpName %patchOut0 "patchOut0" + OpName %patchOut1 "patchOut1" + OpDecorate %patchOut0 Patch + OpDecorate %patchOut0 Location 0 + OpDecorate %patchOut1 Patch + OpDecorate %patchOut1 Location 2 + %void = OpTypeVoid + %3 = OpTypeFunction %void + %float = OpTypeFloat 32 + %uint = OpTypeInt 32 0 + %uint_2 = OpConstant %uint 2 +%_arr_float_uint_2 = OpTypeArray %float %uint_2 +%_ptr_Output__arr_float_uint_2 = OpTypePointer Output %_arr_float_uint_2 + %patchOut0 = OpVariable %_ptr_Output__arr_float_uint_2 Output + %int = OpTypeInt 32 1 + %int_1 = OpConstant %int 1 + %float_0 = OpConstant %float 0 +%_ptr_Output_float = OpTypePointer Output %float + %patchOut1 = OpVariable %_ptr_Output__arr_float_uint_2 Output + %float_1 = OpConstant %float 1 + %main = OpFunction %void None %3 + %5 = OpLabel + %16 = OpAccessChain %_ptr_Output_float %patchOut0 %int_1 + OpStore %16 %float_0 +;CHECK-NOT: OpStore %16 %float_0 + %19 = OpAccessChain %_ptr_Output_float %patchOut1 %int_1 + OpStore %19 %float_1 +;CHECK: OpStore %19 %float_1 + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + live_inputs.insert(3); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +TEST_F(ElimDeadOutputStoresTest, VertMultipleLocationsF16) { + // #version 450 + // + // layout(location = 2) out Vertex + // { + // f16vec4 color0; + // f16vec4 color1; + // f16vec4 color2[3]; + // } oVert; + // + // void main() + // { + // oVert.color0 = f16vec4(0.0,0.0,0.0,0.0); + // oVert.color1 = f16vec4(0.1,0.0,0.0,0.0); + // oVert.color2[0] = f16vec4(0.2,0.0,0.0,0.0); + // oVert.color2[1] = f16vec4(0.3,0.0,0.0,0.0); + // oVert.color2[2] = f16vec4(0.4,0.0,0.0,0.0); + // } + const std::string text = R"( + OpCapability Shader + OpCapability Float16 + OpCapability StorageInputOutput16 + %1 = OpExtInstImport "GLSL.std.450" + OpMemoryModel Logical GLSL450 + OpEntryPoint Vertex %main "main" %oVert + OpSource GLSL 450 + OpName %main "main" + OpName %Vertex "Vertex" + OpMemberName %Vertex 0 "color0" + OpMemberName %Vertex 1 "color1" + OpMemberName %Vertex 2 "color2" + OpName %oVert "oVert" + OpDecorate %Vertex Block + OpDecorate %oVert Location 2 + %void = OpTypeVoid + %3 = OpTypeFunction %void + %half = OpTypeFloat 32 + %v4half = OpTypeVector %half 4 + %uint = OpTypeInt 32 0 + %uint_3 = OpConstant %uint 3 +%_arr_v4half_uint_3 = OpTypeArray %v4half %uint_3 + %Vertex = OpTypeStruct %v4half %v4half %_arr_v4half_uint_3 +%_ptr_Output_Vertex = OpTypePointer Output %Vertex + %oVert = OpVariable %_ptr_Output_Vertex Output + %int = OpTypeInt 32 1 + %int_0 = OpConstant %int 0 + %half_0 = OpConstant %half 0 + %17 = OpConstantComposite %v4half %half_0 %half_0 %half_0 %half_0 +%_ptr_Output_v4half = OpTypePointer Output %v4half + %int_1 = OpConstant %int 1 +%half_0_100000001 = OpConstant %half 0.100000001 + %22 = OpConstantComposite %v4half %half_0_100000001 %half_0 %half_0 %half_0 + %int_2 = OpConstant %int 2 +%half_0_200000003 = OpConstant %half 0.200000003 + %26 = OpConstantComposite %v4half %half_0_200000003 %half_0 %half_0 %half_0 +%half_0_300000012 = OpConstant %half 0.300000012 + %29 = OpConstantComposite %v4half %half_0_300000012 %half_0 %half_0 %half_0 +%half_0_400000006 = OpConstant %half 0.400000006 + %32 = OpConstantComposite %v4half %half_0_400000006 %half_0 %half_0 %half_0 + %main = OpFunction %void None %3 + %5 = OpLabel + %19 = OpAccessChain %_ptr_Output_v4half %oVert %int_0 + OpStore %19 %17 +;CHECK: OpStore %19 %17 + %23 = OpAccessChain %_ptr_Output_v4half %oVert %int_1 + OpStore %23 %22 +;CHECK-NOT: OpStore %23 %22 + %27 = OpAccessChain %_ptr_Output_v4half %oVert %int_2 %int_0 + OpStore %27 %26 +;CHECK-NOT: OpStore %27 %26 + %30 = OpAccessChain %_ptr_Output_v4half %oVert %int_2 %int_1 + OpStore %30 %29 +;CHECK: OpStore %30 %29 + %33 = OpAccessChain %_ptr_Output_v4half %oVert %int_2 %int_2 + OpStore %33 %32 +;CHECK-NOT: OpStore %33 %32 + OpReturn + OpFunctionEnd +)"; + + SetTargetEnv(SPV_ENV_VULKAN_1_3); + SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS); + + std::unordered_set<uint32_t> live_inputs; + std::unordered_set<uint32_t> live_builtins; + live_inputs.insert(2); + live_inputs.insert(5); + SinglePassRunAndMatch<EliminateDeadOutputStoresPass>(text, true, &live_inputs, + &live_builtins); +} + +} // namespace +} // namespace opt +} // namespace spvtools |