| #!amber |
| |
| # Copyright 2021 Google LLC |
| # |
| # 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. |
| |
| |
| # A test for a coverage-gap found by the GraphicsFuzz project. |
| |
| # Short description: A fragment shader that covers specific NIR code paths |
| |
| # The test passes because the shader always writes red. |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '--reduce-load-size' |
| # '--if-conversion' |
| # '--if-conversion' |
| # '--combine-access-chains' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--eliminate-dead-branches' |
| # '--merge-blocks' |
| # '--if-conversion' |
| # '--eliminate-local-single-store' |
| # '--redundancy-elimination' |
| # '--private-to-local' |
| # '--combine-access-chains' |
| # '--ccp' |
| # '--eliminate-local-multi-store' |
| # '--if-conversion' |
| # '--convert-local-access-chains' |
| # '--combine-access-chains' |
| # '--reduce-load-size' |
| # '--ccp' |
| # '--eliminate-dead-inserts' |
| # '--simplify-instructions' |
| # '--eliminate-dead-code-aggressive' |
| # spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af |
| |
| |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # #define _int_0 _GLF_uniform_int_values[0] |
| # #define _int_1 _GLF_uniform_int_values[1] |
| # #define _int_2 _GLF_uniform_int_values[2] |
| # #define _float_1_0 _GLF_uniform_float_values[0] |
| # #define _float_0_0 _GLF_uniform_float_values[1] |
| # |
| # precision highp int; |
| # precision highp float; |
| # |
| # // Contents of _GLF_uniform_int_values: [0, 1, 2] |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # int _GLF_uniform_int_values[3]; |
| # }; |
| # // Contents of _GLF_uniform_float_values: [1.0, 0.0] |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # float _GLF_uniform_float_values[2]; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # mat3x2 m32 = mat3x2(_float_1_0); |
| # int a = 3; |
| # |
| # // Always false. |
| # if (_int_0 == 1) |
| # { |
| # // Indexing past the matrix elements, but this |
| # // code is never executed and the values are not |
| # // used for the final results. |
| # m32[a][_int_0] = _float_1_0; |
| # } |
| # |
| # float sums[3] = float[3](_float_1_0, _float_1_0, _float_1_0); |
| # |
| # for(int c = _int_0; c < _int_2; c ++) |
| # { |
| # // This value is still unused later. |
| # sums[_int_2] += m32[c][_int_0]; |
| # } |
| # |
| # // This only depends on the initialized constant values. |
| # _GLF_color = vec4(sums[_int_0], _float_0_0, _float_0_0, sums[_int_1]); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 105 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %89 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %10 "m32" |
| OpName %14 "buf1" |
| OpMemberName %14 0 "_GLF_uniform_float_values" |
| OpName %16 "" |
| OpName %33 "buf0" |
| OpMemberName %33 0 "_GLF_uniform_int_values" |
| OpName %35 "" |
| OpName %53 "sums" |
| OpName %89 "_GLF_color" |
| OpDecorate %13 ArrayStride 16 |
| OpMemberDecorate %14 0 Offset 0 |
| OpDecorate %14 Block |
| OpDecorate %16 DescriptorSet 0 |
| OpDecorate %16 Binding 1 |
| OpDecorate %32 ArrayStride 16 |
| OpMemberDecorate %33 0 Offset 0 |
| OpDecorate %33 Block |
| OpDecorate %35 DescriptorSet 0 |
| OpDecorate %35 Binding 0 |
| OpDecorate %89 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 2 |
| %8 = OpTypeMatrix %7 3 |
| %9 = OpTypePointer Function %8 |
| %11 = OpTypeInt 32 0 |
| %12 = OpConstant %11 2 |
| %13 = OpTypeArray %6 %12 |
| %14 = OpTypeStruct %13 |
| %15 = OpTypePointer Uniform %14 |
| %16 = OpVariable %15 Uniform |
| %17 = OpTypeInt 32 1 |
| %18 = OpConstant %17 0 |
| %19 = OpTypePointer Uniform %6 |
| %23 = OpConstant %6 0 |
| %30 = OpConstant %17 3 |
| %31 = OpConstant %11 3 |
| %32 = OpTypeArray %17 %31 |
| %33 = OpTypeStruct %32 |
| %34 = OpTypePointer Uniform %33 |
| %35 = OpVariable %34 Uniform |
| %36 = OpTypePointer Uniform %17 |
| %39 = OpConstant %17 1 |
| %40 = OpTypeBool |
| %49 = OpTypePointer Function %6 |
| %51 = OpTypeArray %6 %31 |
| %52 = OpTypePointer Function %51 |
| %70 = OpConstant %17 2 |
| %87 = OpTypeVector %6 4 |
| %88 = OpTypePointer Output %87 |
| %89 = OpVariable %88 Output |
| %103 = OpConstantComposite %7 %23 %23 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %10 = OpVariable %9 Function |
| %53 = OpVariable %52 Function |
| %20 = OpAccessChain %19 %16 %18 %18 |
| %21 = OpLoad %6 %20 |
| %24 = OpCompositeConstruct %7 %21 %23 |
| %25 = OpCompositeConstruct %7 %23 %21 |
| %27 = OpCompositeConstruct %8 %24 %25 %103 |
| OpStore %10 %27 |
| %37 = OpAccessChain %36 %35 %18 %18 |
| %38 = OpLoad %17 %37 |
| %41 = OpIEqual %40 %38 %39 |
| OpSelectionMerge %43 None |
| OpBranchConditional %41 %42 %43 |
| %42 = OpLabel |
| %50 = OpAccessChain %49 %10 %30 %38 |
| OpStore %50 %21 |
| OpBranch %43 |
| %43 = OpLabel |
| %60 = OpCompositeConstruct %51 %21 %21 %21 |
| OpStore %53 %60 |
| OpBranch %64 |
| %64 = OpLabel |
| %104 = OpPhi %17 %38 %43 %86 %65 |
| %71 = OpAccessChain %36 %35 %18 %70 |
| %72 = OpLoad %17 %71 |
| %73 = OpSLessThan %40 %104 %72 |
| OpLoopMerge %66 %65 None |
| OpBranchConditional %73 %65 %66 |
| %65 = OpLabel |
| %79 = OpAccessChain %49 %10 %104 %38 |
| %80 = OpLoad %6 %79 |
| %81 = OpAccessChain %49 %53 %72 |
| %82 = OpLoad %6 %81 |
| %83 = OpFAdd %6 %82 %80 |
| OpStore %81 %83 |
| %86 = OpIAdd %17 %104 %39 |
| OpBranch %64 |
| %66 = OpLabel |
| %92 = OpAccessChain %49 %53 %38 |
| %93 = OpLoad %6 %92 |
| %94 = OpAccessChain %19 %16 %18 %39 |
| %95 = OpLoad %6 %94 |
| %98 = OpAccessChain %36 %35 %18 %39 |
| %99 = OpLoad %17 %98 |
| %100 = OpAccessChain %49 %53 %99 |
| %101 = OpLoad %6 %100 |
| %102 = OpCompositeConstruct %87 %93 %95 %95 %101 |
| OpStore %89 %102 |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # _GLF_uniform_float_values |
| BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA |
| 1.0 0.0 |
| END |
| # _GLF_uniform_int_values |
| BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA |
| 0 1 2 |
| END |
| |
| BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM |
| |
| PIPELINE graphics variant_pipeline |
| ATTACH variant_vertex_shader |
| ATTACH variant_fragment_shader |
| FRAMEBUFFER_SIZE 256 256 |
| BIND BUFFER variant_framebuffer AS color LOCATION 0 |
| BIND BUFFER variant__GLF_uniform_float_values AS uniform DESCRIPTOR_SET 0 BINDING 1 |
| BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0 |
| END |
| CLEAR_COLOR variant_pipeline 0 0 0 255 |
| |
| CLEAR variant_pipeline |
| RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 |
| |
| EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 |