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SPIRV-Tools/test/opt/eliminate_dead_io_components_test.cpp
Spencer Fricke fa69b09cff
spirv-opt: Remove unused includes and code (#5177)
2023-03-28 12:40:30 -04:00

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// 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 <vector>
#include "test/opt/pass_fixture.h"
#include "test/opt/pass_utils.h"
namespace spvtools {
namespace opt {
namespace {
using ElimDeadIOComponentsTest = PassTest<::testing::Test>;
TEST_F(ElimDeadIOComponentsTest, ElimOneConstantIndex) {
// Should reduce to uv[2]
//
// #version 450
//
// layout(location = 0) in vec4 uv[8];
//
// out gl_PerVertex {
// vec4 gl_Position;
// };
//
// void main()
// {
// gl_Position = uv[1];
// }
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Vertex %main "main" %_ %uv
OpSource GLSL 450
OpName %main "main"
OpName %gl_PerVertex "gl_PerVertex"
OpMemberName %gl_PerVertex 0 "gl_Position"
OpName %_ ""
OpName %uv "uv"
OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
OpDecorate %gl_PerVertex Block
OpDecorate %uv Location 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%gl_PerVertex = OpTypeStruct %v4float
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
%_ = OpVariable %_ptr_Output_gl_PerVertex Output
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%uint = OpTypeInt 32 0
%uint_8 = OpConstant %uint 8
%_arr_v4float_uint_8 = OpTypeArray %v4float %uint_8
%_ptr_Input__arr_v4float_uint_8 = OpTypePointer Input %_arr_v4float_uint_8
%uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%int_1 = OpConstant %int 1
%_ptr_Input_v4float = OpTypePointer Input %v4float
%_ptr_Output_v4float = OpTypePointer Output %v4float
;CHECK-NOT: %uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
;CHECK: %uv = OpVariable %_ptr_Input__arr_v4float_uint_2 Input
%main = OpFunction %void None %3
%5 = OpLabel
%20 = OpAccessChain %_ptr_Input_v4float %uv %int_1
%21 = OpLoad %v4float %20
%23 = OpAccessChain %_ptr_Output_v4float %_ %int_0
OpStore %23 %21
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, ElimOneConstantIndexInBounds) {
// Same as ElimOneConstantIndex but with OpInBoundsAccessChain
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Vertex %main "main" %_ %uv
OpSource GLSL 450
OpName %main "main"
OpName %gl_PerVertex "gl_PerVertex"
OpMemberName %gl_PerVertex 0 "gl_Position"
OpName %_ ""
OpName %uv "uv"
OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
OpDecorate %gl_PerVertex Block
OpDecorate %uv Location 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%gl_PerVertex = OpTypeStruct %v4float
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
%_ = OpVariable %_ptr_Output_gl_PerVertex Output
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%uint = OpTypeInt 32 0
%uint_8 = OpConstant %uint 8
%_arr_v4float_uint_8 = OpTypeArray %v4float %uint_8
%_ptr_Input__arr_v4float_uint_8 = OpTypePointer Input %_arr_v4float_uint_8
%uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%int_1 = OpConstant %int 1
%_ptr_Input_v4float = OpTypePointer Input %v4float
%_ptr_Output_v4float = OpTypePointer Output %v4float
;CHECK-NOT: %uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
;CHECK: %uv = OpVariable %_ptr_Input__arr_v4float_uint_2 Input
%main = OpFunction %void None %3
%5 = OpLabel
%20 = OpInBoundsAccessChain %_ptr_Input_v4float %uv %int_1
%21 = OpLoad %v4float %20
%23 = OpAccessChain %_ptr_Output_v4float %_ %int_0
OpStore %23 %21
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, ElimTwoConstantIndices) {
// Should reduce to uv[4]
//
// #version 450
//
// layout(location = 0) in vec4 uv[8];
//
// out gl_PerVertex {
// vec4 gl_Position;
// };
//
// void main()
// {
// gl_Position = uv[1] + uv[3];
// }
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Vertex %main "main" %_ %uv
OpSource GLSL 450
OpName %main "main"
OpName %gl_PerVertex "gl_PerVertex"
OpMemberName %gl_PerVertex 0 "gl_Position"
OpName %_ ""
OpName %uv "uv"
OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
OpDecorate %gl_PerVertex Block
OpDecorate %uv Location 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%gl_PerVertex = OpTypeStruct %v4float
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
%_ = OpVariable %_ptr_Output_gl_PerVertex Output
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%uint = OpTypeInt 32 0
%uint_8 = OpConstant %uint 8
%_arr_v4float_uint_8 = OpTypeArray %v4float %uint_8
%_ptr_Input__arr_v4float_uint_8 = OpTypePointer Input %_arr_v4float_uint_8
%uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%int_1 = OpConstant %int 1
%_ptr_Input_v4float = OpTypePointer Input %v4float
%int_3 = OpConstant %int 3
%_ptr_Output_v4float = OpTypePointer Output %v4float
;CHECK-NOT: %uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
;CHECK: %uv = OpVariable %_ptr_Input__arr_v4float_uint_4 Input
%main = OpFunction %void None %3
%5 = OpLabel
%20 = OpAccessChain %_ptr_Input_v4float %uv %int_1
%21 = OpLoad %v4float %20
%23 = OpAccessChain %_ptr_Input_v4float %uv %int_3
%24 = OpLoad %v4float %23
%25 = OpFAdd %v4float %21 %24
%27 = OpAccessChain %_ptr_Output_v4float %_ %int_0
OpStore %27 %25
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, NoElimMaxConstantIndex) {
// Should not reduce uv[8] because of max index of 7
//
// #version 450
//
// layout(location = 0) in vec4 uv[8];
//
// out gl_PerVertex {
// vec4 gl_Position;
// };
//
// void main()
// {
// gl_Position = uv[1] + uv[7];
// }
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Vertex %main "main" %_ %uv
OpSource GLSL 450
OpName %main "main"
OpName %gl_PerVertex "gl_PerVertex"
OpMemberName %gl_PerVertex 0 "gl_Position"
OpName %_ ""
OpName %uv "uv"
OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
OpDecorate %gl_PerVertex Block
OpDecorate %uv Location 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%gl_PerVertex = OpTypeStruct %v4float
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
%_ = OpVariable %_ptr_Output_gl_PerVertex Output
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%uint = OpTypeInt 32 0
%uint_8 = OpConstant %uint 8
%_arr_v4float_uint_8 = OpTypeArray %v4float %uint_8
%_ptr_Input__arr_v4float_uint_8 = OpTypePointer Input %_arr_v4float_uint_8
%uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%int_1 = OpConstant %int 1
%_ptr_Input_v4float = OpTypePointer Input %v4float
%int_7 = OpConstant %int 7
%_ptr_Output_v4float = OpTypePointer Output %v4float
;CHECK: %uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%main = OpFunction %void None %3
%5 = OpLabel
%20 = OpAccessChain %_ptr_Input_v4float %uv %int_1
%21 = OpLoad %v4float %20
%23 = OpAccessChain %_ptr_Input_v4float %uv %int_7
%24 = OpLoad %v4float %23
%25 = OpFAdd %v4float %21 %24
%27 = OpAccessChain %_ptr_Output_v4float %_ %int_0
OpStore %27 %25
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, NoElimNonConstantIndex) {
// Should not reduce uv[8] because of non-constant index of ui
//
// #version 450
//
// layout(location = 0) in vec4 uv[8];
//
// out gl_PerVertex {
// vec4 gl_Position;
// };
//
// uniform ubname {
// int ui;
// } ubinst;
//
// void main()
// {
// gl_Position = uv[1] + uv[ubinst.ui];
// }
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Vertex %main "main" %_ %uv %ubinst
OpSource GLSL 450
OpName %main "main"
OpName %gl_PerVertex "gl_PerVertex"
OpMemberName %gl_PerVertex 0 "gl_Position"
OpName %_ ""
OpName %uv "uv"
OpName %ubname "ubname"
OpMemberName %ubname 0 "ui"
OpName %ubinst "ubinst"
OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
OpDecorate %gl_PerVertex Block
OpDecorate %uv Location 0
OpMemberDecorate %ubname 0 Offset 0
OpDecorate %ubname Block
OpDecorate %ubinst DescriptorSet 0
OpDecorate %ubinst Binding 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%gl_PerVertex = OpTypeStruct %v4float
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
%_ = OpVariable %_ptr_Output_gl_PerVertex Output
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%uint = OpTypeInt 32 0
%uint_8 = OpConstant %uint 8
%_arr_v4float_uint_8 = OpTypeArray %v4float %uint_8
%_ptr_Input__arr_v4float_uint_8 = OpTypePointer Input %_arr_v4float_uint_8
%uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%int_1 = OpConstant %int 1
%_ptr_Input_v4float = OpTypePointer Input %v4float
%ubname = OpTypeStruct %int
%_ptr_Uniform_ubname = OpTypePointer Uniform %ubname
%ubinst = OpVariable %_ptr_Uniform_ubname Uniform
%_ptr_Uniform_int = OpTypePointer Uniform %int
%_ptr_Output_v4float = OpTypePointer Output %v4float
;CHECK: %uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%main = OpFunction %void None %3
%5 = OpLabel
%20 = OpAccessChain %_ptr_Input_v4float %uv %int_1
%21 = OpLoad %v4float %20
%26 = OpAccessChain %_ptr_Uniform_int %ubinst %int_0
%27 = OpLoad %int %26
%28 = OpAccessChain %_ptr_Input_v4float %uv %27
%29 = OpLoad %v4float %28
%30 = OpFAdd %v4float %21 %29
%32 = OpAccessChain %_ptr_Output_v4float %_ %int_0
OpStore %32 %30
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, NoElimNonIndexedAccessChain) {
// Should not change due to non-indexed access chain
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Vertex %main "main" %_ %uv
OpSource GLSL 450
OpName %main "main"
OpName %gl_PerVertex "gl_PerVertex"
OpMemberName %gl_PerVertex 0 "gl_Position"
OpName %_ ""
OpName %uv "uv"
OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
OpDecorate %gl_PerVertex Block
OpDecorate %uv Location 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%gl_PerVertex = OpTypeStruct %v4float
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
%_ = OpVariable %_ptr_Output_gl_PerVertex Output
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%uint = OpTypeInt 32 0
%uint_8 = OpConstant %uint 8
%_arr_v4float_uint_8 = OpTypeArray %v4float %uint_8
%_ptr_Input__arr_v4float_uint_8 = OpTypePointer Input %_arr_v4float_uint_8
%uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%int_1 = OpConstant %int 1
%_ptr_Input_v4float = OpTypePointer Input %v4float
%_ptr_Output_v4float = OpTypePointer Output %v4float
;CHECK: %uv = OpVariable %_ptr_Input__arr_v4float_uint_8 Input
%main = OpFunction %void None %3
%5 = OpLabel
%20 = OpAccessChain %_ptr_Input__arr_v4float_uint_8 %uv
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, ElimStructMember) {
// Should eliminate uv
//
// #version 450
//
// in Vertex {
// vec4 Cd;
// vec2 uv;
// } iVert;
//
// out vec4 fragColor;
//
// void main()
// {
// vec4 color = vec4(iVert.Cd);
// fragColor = color;
// }
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %iVert %fragColor
OpExecutionMode %main OriginUpperLeft
OpSource GLSL 450
OpName %main "main"
OpName %Vertex "Vertex"
OpMemberName %Vertex 0 "Cd"
OpMemberName %Vertex 1 "uv"
OpName %iVert "iVert"
OpName %fragColor "fragColor"
OpDecorate %Vertex Block
OpDecorate %iVert Location 0
OpDecorate %fragColor Location 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%v2float = OpTypeVector %float 2
%Vertex = OpTypeStruct %v4float %v2float
; CHECK: %Vertex = OpTypeStruct %v4float %v2float
; CHECK: %Vertex_0 = OpTypeStruct %v4float
%_ptr_Input_Vertex = OpTypePointer Input %Vertex
; CHECK: [[pty:%\w+]] = OpTypePointer Input %Vertex_0
%iVert = OpVariable %_ptr_Input_Vertex Input
; CHECK: %iVert = OpVariable [[pty]] Input
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%_ptr_Input_v4float = OpTypePointer Input %v4float
%_ptr_Output_v4float = OpTypePointer Output %v4float
%fragColor = OpVariable %_ptr_Output_v4float Output
%main = OpFunction %void None %3
%5 = OpLabel
%17 = OpAccessChain %_ptr_Input_v4float %iVert %int_0
%18 = OpLoad %v4float %17
OpStore %fragColor %18
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, ElimOutputStructMember) {
// Should eliminate uv from Vertex and all but gl_Position from gl_PerVertex
//
// #version 450
//
// out Vertex {
// vec4 Cd;
// vec2 uv;
// } oVert;
//
// in vec3 P;
//
// void main()
// {
// vec4 worldSpacePos = vec4(P, 1);
// oVert.Cd = vec4(1, 0.5, 0, 1);
// gl_Position = worldSpacePos;
// }
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Vertex %main "main" %P %oVert %_
OpSource GLSL 450
OpName %main "main"
OpName %P "P"
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 %_ ""
OpDecorate %P Location 0
OpDecorate %Vertex Block
OpDecorate %oVert Location 0
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
%_ptr_Input_v3float = OpTypePointer Input %v3float
%P = OpVariable %_ptr_Input_v3float Input
%float_1 = OpConstant %float 1
%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_0 = OpConstant %int 0
%float_0_5 = OpConstant %float 0.5
%float_0 = OpConstant %float 0
%27 = 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
; CHECK: %Vertex = OpTypeStruct %v4float %v2float
; CHECK: %gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
; CHECK: %_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
; CHECK: [[sty:%\w+]] = OpTypeStruct %v4float
; CHECK: [[pty:%\w+]] = OpTypePointer Output [[sty]]
; CHECK: %oVert = OpVariable [[pty]] Output
; CHECK: [[sty2:%\w+]] = OpTypeStruct %v4float
; CHECK: [[pty2:%\w+]] = OpTypePointer Output [[sty2]]
; CHECK: %_ = OpVariable [[pty2]] Output
%main = OpFunction %void None %3
%5 = OpLabel
%13 = OpLoad %v3float %P
%15 = OpCompositeExtract %float %13 0
%16 = OpCompositeExtract %float %13 1
%17 = OpCompositeExtract %float %13 2
%18 = OpCompositeConstruct %v4float %15 %16 %17 %float_1
%29 = OpAccessChain %_ptr_Output_v4float %oVert %int_0
OpStore %29 %27
%37 = OpAccessChain %_ptr_Output_v4float %_ %int_0
OpStore %37 %18
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Output, false);
}
TEST_F(ElimDeadIOComponentsTest, ElimOutputArrayMembers) {
// Should reduce to uv[2]
//
// #version 450
//
// layout(location = 0) out vec2 uv[8];
//
// void main()
// {
// uv[1] = vec2(1, 0.5);
// }
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %uv
OpExecutionMode %main OriginUpperLeft
OpSource GLSL 450
OpName %main "main"
OpName %uv "uv"
OpDecorate %uv Location 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v2float = OpTypeVector %float 2
%uint = OpTypeInt 32 0
%uint_8 = OpConstant %uint 8
%_arr_v2float_uint_8 = OpTypeArray %v2float %uint_8
%_ptr_Output__arr_v2float_uint_8 = OpTypePointer Output %_arr_v2float_uint_8
%uv = OpVariable %_ptr_Output__arr_v2float_uint_8 Output
;CHECK-NOT: %uv = OpVariable %_ptr_Output__arr_v2float_uint_8 Output
;CHECK: %uv = OpVariable %_ptr_Output__arr_v2float_uint_2 Output
%int = OpTypeInt 32 1
%int_1 = OpConstant %int 1
%float_1 = OpConstant %float 1
%float_0_5 = OpConstant %float 0.5
%17 = OpConstantComposite %v2float %float_1 %float_0_5
%_ptr_Output_v2float = OpTypePointer Output %v2float
%main = OpFunction %void None %3
%5 = OpLabel
%19 = OpAccessChain %_ptr_Output_v2float %uv %int_1
OpStore %19 %17
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Output, false);
}
TEST_F(ElimDeadIOComponentsTest, VertexOnly) {
// Should NOT eliminate uv
//
// #version 450
//
// in Vertex {
// vec4 Cd;
// vec2 uv;
// } iVert;
//
// out vec4 fragColor;
//
// void main()
// {
// vec4 color = vec4(iVert.Cd);
// fragColor = color;
// }
const std::string text = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %iVert %fragColor
OpExecutionMode %main OriginUpperLeft
OpSource GLSL 450
OpName %main "main"
OpName %Vertex "Vertex"
OpMemberName %Vertex 0 "Cd"
OpMemberName %Vertex 1 "uv"
OpName %iVert "iVert"
OpName %fragColor "fragColor"
OpDecorate %Vertex Block
OpDecorate %iVert Location 0
OpDecorate %fragColor Location 0
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%v2float = OpTypeVector %float 2
%Vertex = OpTypeStruct %v4float %v2float
; CHECK: %Vertex = OpTypeStruct %v4float %v2float
%_ptr_Input_Vertex = OpTypePointer Input %Vertex
; CHECK: %_ptr_Input_Vertex = OpTypePointer Input %Vertex
%iVert = OpVariable %_ptr_Input_Vertex Input
; CHECK: %iVert = OpVariable %_ptr_Input_Vertex Input
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%_ptr_Input_v4float = OpTypePointer Input %v4float
%_ptr_Output_v4float = OpTypePointer Output %v4float
%fragColor = OpVariable %_ptr_Output_v4float Output
%main = OpFunction %void None %3
%5 = OpLabel
%17 = OpAccessChain %_ptr_Input_v4float %iVert %int_0
%18 = OpLoad %v4float %17
OpStore %fragColor %18
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, true);
}
TEST_F(ElimDeadIOComponentsTest, TescInput) {
// Eliminate PointSize, ClipDistance, CullDistance from gl_in[]
//
// #version 450
//
// layout (vertices = 4) out;
//
// void main()
// {
// vec4 pos = gl_in[gl_InvocationID].gl_Position;
// gl_out[gl_InvocationID].gl_Position = pos;
// }
const std::string text = R"(
OpCapability Tessellation
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint TessellationControl %main "main" %gl_in %gl_InvocationID %gl_out
OpExecutionMode %main OutputVertices 4
OpSource GLSL 450
OpName %main "main"
OpName %pos "pos"
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_in "gl_in"
OpName %gl_InvocationID "gl_InvocationID"
OpName %gl_PerVertex_0 "gl_PerVertex"
OpMemberName %gl_PerVertex_0 0 "gl_Position"
OpName %gl_out "gl_out"
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 %gl_InvocationID BuiltIn InvocationId
OpMemberDecorate %gl_PerVertex_0 0 BuiltIn Position
OpDecorate %gl_PerVertex_0 Block
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Function_v4float = OpTypePointer Function %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
%uint_32 = OpConstant %uint 32
%_arr_gl_PerVertex_uint_32 = OpTypeArray %gl_PerVertex %uint_32
%_ptr_Input__arr_gl_PerVertex_uint_32 = OpTypePointer Input %_arr_gl_PerVertex_uint_32
%gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_uint_32 Input
%int = OpTypeInt 32 1
%_ptr_Input_int = OpTypePointer Input %int
%gl_InvocationID = OpVariable %_ptr_Input_int Input
%int_0 = OpConstant %int 0
%_ptr_Input_v4float = OpTypePointer Input %v4float
%gl_PerVertex_0 = OpTypeStruct %v4float
%uint_4 = OpConstant %uint 4
%_arr_gl_PerVertex_0_uint_4 = OpTypeArray %gl_PerVertex_0 %uint_4
%_ptr_Output__arr_gl_PerVertex_0_uint_4 = OpTypePointer Output %_arr_gl_PerVertex_0_uint_4
%gl_out = OpVariable %_ptr_Output__arr_gl_PerVertex_0_uint_4 Output
%_ptr_Output_v4float = OpTypePointer Output %v4float
; CHECK: %gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
; CHECK: [[sty:%\w+]] = OpTypeStruct %v4float
; CHECK: [[asty:%\w+]] = OpTypeArray [[sty]] %uint_32
; CHECK: [[pasty:%\w+]] = OpTypePointer Input [[asty]]
; CHECK: %gl_in = OpVariable [[pasty]] Input
%main = OpFunction %void None %3
%5 = OpLabel
%pos = OpVariable %_ptr_Function_v4float Function
%21 = OpLoad %int %gl_InvocationID
%24 = OpAccessChain %_ptr_Input_v4float %gl_in %21 %int_0
%25 = OpLoad %v4float %24
OpStore %pos %25
%31 = OpLoad %int %gl_InvocationID
%32 = OpLoad %v4float %pos
%34 = OpAccessChain %_ptr_Output_v4float %gl_out %31 %int_0
OpStore %34 %32
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, TescOutput) {
// Eliminate PointSize, ClipDistance, CullDistance from gl_out[]
//
// #version 450
//
// layout (vertices = 4) out;
//
// void main()
// {
// vec4 pos = gl_in[gl_InvocationID].gl_Position;
// gl_out[gl_InvocationID].gl_Position = pos;
// }
const std::string text = R"(
OpCapability Tessellation
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint TessellationControl %main "main" %gl_in %gl_InvocationID %gl_out
OpExecutionMode %main OutputVertices 4
OpSource GLSL 450
OpName %main "main"
OpName %pos "pos"
OpName %gl_PerVertex "gl_PerVertex"
OpMemberName %gl_PerVertex 0 "gl_Position"
OpName %gl_in "gl_in"
OpName %gl_InvocationID "gl_InvocationID"
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_out "gl_out"
OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
OpDecorate %gl_PerVertex Block
OpDecorate %gl_InvocationID BuiltIn InvocationId
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
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Function_v4float = OpTypePointer Function %v4float
%uint = OpTypeInt 32 0
%uint_1 = OpConstant %uint 1
%_arr_float_uint_1 = OpTypeArray %float %uint_1
%gl_PerVertex = OpTypeStruct %v4float
%uint_32 = OpConstant %uint 32
%_arr_gl_PerVertex_uint_32 = OpTypeArray %gl_PerVertex %uint_32
%_ptr_Input__arr_gl_PerVertex_uint_32 = OpTypePointer Input %_arr_gl_PerVertex_uint_32
%gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_uint_32 Input
%int = OpTypeInt 32 1
%_ptr_Input_int = OpTypePointer Input %int
%gl_InvocationID = OpVariable %_ptr_Input_int Input
%int_0 = OpConstant %int 0
%_ptr_Input_v4float = OpTypePointer Input %v4float
%gl_PerVertex_0 = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
%uint_4 = OpConstant %uint 4
%_arr_gl_PerVertex_0_uint_4 = OpTypeArray %gl_PerVertex_0 %uint_4
%_ptr_Output__arr_gl_PerVertex_0_uint_4 = OpTypePointer Output %_arr_gl_PerVertex_0_uint_4
%gl_out = OpVariable %_ptr_Output__arr_gl_PerVertex_0_uint_4 Output
%_ptr_Output_v4float = OpTypePointer Output %v4float
; CHECK: [[sty:%\w+]] = OpTypeStruct %v4float
; CHECK: [[asty:%\w+]] = OpTypeArray [[sty]] %uint_4
; CHECK: [[pasty:%\w+]] = OpTypePointer Output [[asty]]
; CHECK: %gl_out = OpVariable [[pasty]] Output
%main = OpFunction %void None %3
%5 = OpLabel
%pos = OpVariable %_ptr_Function_v4float Function
%21 = OpLoad %int %gl_InvocationID
%24 = OpAccessChain %_ptr_Input_v4float %gl_in %21 %int_0
%25 = OpLoad %v4float %24
OpStore %pos %25
%31 = OpLoad %int %gl_InvocationID
%32 = OpLoad %v4float %pos
%34 = OpAccessChain %_ptr_Output_v4float %gl_out %31 %int_0
OpStore %34 %32
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Output, false);
}
TEST_F(ElimDeadIOComponentsTest, TeseInput) {
// Eliminate PointSize, ClipDistance, CullDistance from gl_in[]
//
// #version 450
//
// layout(triangles, ccw) in;
// layout(fractional_odd_spacing) in;
// layout(point_mode) in;
//
// void main()
// {
// vec4 p = gl_in[1].gl_Position;
// gl_Position = p;
// }
const std::string text = R"(
OpCapability Tessellation
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint TessellationEvaluation %main "main" %gl_in %_
OpExecutionMode %main Triangles
OpExecutionMode %main SpacingFractionalOdd
OpExecutionMode %main VertexOrderCcw
OpExecutionMode %main PointMode
OpSource GLSL 450
OpName %main "main"
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_in "gl_in"
OpName %gl_PerVertex_0 "gl_PerVertex"
OpMemberName %gl_PerVertex_0 0 "gl_Position"
OpName %_ ""
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
OpDecorate %gl_PerVertex_0 Block
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Function_v4float = OpTypePointer Function %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
%uint_32 = OpConstant %uint 32
%_arr_gl_PerVertex_uint_32 = OpTypeArray %gl_PerVertex %uint_32
%_ptr_Input__arr_gl_PerVertex_uint_32 = OpTypePointer Input %_arr_gl_PerVertex_uint_32
%gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_uint_32 Input
%int = OpTypeInt 32 1
%int_1 = OpConstant %int 1
%int_0 = OpConstant %int 0
%_ptr_Input_v4float = OpTypePointer Input %v4float
%gl_PerVertex_0 = OpTypeStruct %v4float
%_ptr_Output_gl_PerVertex_0 = OpTypePointer Output %gl_PerVertex_0
%_ = OpVariable %_ptr_Output_gl_PerVertex_0 Output
%_ptr_Output_v4float = OpTypePointer Output %v4float
; CHECK: %gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
; CHECK: [[sty:%\w+]] = OpTypeStruct %v4float
; CHECK: [[asty:%\w+]] = OpTypeArray [[sty]] %uint_32
; CHECK: [[pasty:%\w+]] = OpTypePointer Input [[asty]]
; CHECK: %gl_in = OpVariable [[pasty]] Input
%main = OpFunction %void None %3
%5 = OpLabel
%p = OpVariable %_ptr_Function_v4float Function
%22 = OpAccessChain %_ptr_Input_v4float %gl_in %int_1 %int_0
%23 = OpLoad %v4float %22
OpStore %p %23
%27 = OpLoad %v4float %p
%29 = OpAccessChain %_ptr_Output_v4float %_ %int_0
OpStore %29 %27
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, TeseOutput) {
// Eliminate PointSize, ClipDistance, CullDistance from gl_out
//
// #version 450
//
// layout(triangles, ccw) in;
// layout(fractional_odd_spacing) in;
// layout(point_mode) in;
//
// void main()
// {
// vec4 p = gl_in[1].gl_Position;
// gl_Position = p;
// }
const std::string text = R"(
OpCapability Tessellation
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint TessellationEvaluation %main "main" %gl_in %_
OpExecutionMode %main Triangles
OpExecutionMode %main SpacingFractionalOdd
OpExecutionMode %main VertexOrderCcw
OpExecutionMode %main PointMode
OpSource GLSL 450
OpName %main "main"
OpName %p "p"
OpName %gl_PerVertex "gl_PerVertex"
OpMemberName %gl_PerVertex 0 "gl_Position"
OpName %gl_in "gl_in"
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 %_ ""
OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
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
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Function_v4float = OpTypePointer Function %v4float
%uint = OpTypeInt 32 0
%uint_1 = OpConstant %uint 1
%_arr_float_uint_1 = OpTypeArray %float %uint_1
%gl_PerVertex = OpTypeStruct %v4float
%uint_32 = OpConstant %uint 32
%_arr_gl_PerVertex_uint_32 = OpTypeArray %gl_PerVertex %uint_32
%_ptr_Input__arr_gl_PerVertex_uint_32 = OpTypePointer Input %_arr_gl_PerVertex_uint_32
%gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_uint_32 Input
%int = OpTypeInt 32 1
%int_1 = OpConstant %int 1
%int_0 = OpConstant %int 0
%_ptr_Input_v4float = OpTypePointer Input %v4float
%gl_PerVertex_0 = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
%_ptr_Output_gl_PerVertex_0 = OpTypePointer Output %gl_PerVertex_0
%_ = OpVariable %_ptr_Output_gl_PerVertex_0 Output
%_ptr_Output_v4float = OpTypePointer Output %v4float
; CHECK: %_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
; CHECK: %_ = OpVariable %_ptr_Output_gl_PerVertex Output
%main = OpFunction %void None %3
%5 = OpLabel
%p = OpVariable %_ptr_Function_v4float Function
%22 = OpAccessChain %_ptr_Input_v4float %gl_in %int_1 %int_0
%23 = OpLoad %v4float %22
OpStore %p %23
%27 = OpLoad %v4float %p
%29 = OpAccessChain %_ptr_Output_v4float %_ %int_0
OpStore %29 %27
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Output, false);
}
TEST_F(ElimDeadIOComponentsTest, GeomInput) {
// Eliminate PointSize, ClipDistance, CullDistance from gl_in[]
//
// #version 450
//
// 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;
// EmitVertex();
// }
// EndPrimitive();
// }
const std::string text = R"(
OpCapability Geometry
%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"
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
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
%_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
; CHECK: [[asty:%\w+]] = OpTypeArray %gl_PerVertex %uint_3
; CHECK: [[pasty:%\w+]] = OpTypePointer Input [[asty]]
; CHECK: %gl_in = OpVariable [[pasty]] Input
%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
OpEmitVertex
OpBranch %13
%13 = OpLabel
%38 = OpLoad %int %i
%40 = OpIAdd %int %38 %int_1
OpStore %i %40
OpBranch %10
%12 = OpLabel
OpEndPrimitive
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Input, false);
}
TEST_F(ElimDeadIOComponentsTest, GeomOutput) {
// Eliminate PointSize, ClipDistance, CullDistance from gl_out
//
// #version 450
//
// 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;
// EmitVertex();
// }
// EndPrimitive();
// }
const std::string text = R"(
OpCapability Geometry
%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"
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
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
%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
; CHECK: %_ptr_Output_gl_PerVertex_0 = OpTypePointer Output %gl_PerVertex_0
; CHECK: %_ = OpVariable %_ptr_Output_gl_PerVertex_0 Output
%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
OpEmitVertex
OpBranch %13
%13 = OpLabel
%38 = OpLoad %int %i
%40 = OpIAdd %int %38 %int_1
OpStore %i %40
OpBranch %10
%12 = OpLabel
OpEndPrimitive
OpReturn
OpFunctionEnd
)";
SetTargetEnv(SPV_ENV_VULKAN_1_3);
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SinglePassRunAndMatch<EliminateDeadIOComponentsPass>(
text, true, spv::StorageClass::Output, false);
}
} // namespace
} // namespace opt
} // namespace spvtools
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