| #!amber |
| |
| # Copyright 2020 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: |
| # '--simplify-instructions' |
| # '--reduce-load-size' |
| # '--inline-entry-points-exhaustive' |
| # '--eliminate-local-single-block' |
| # '--redundancy-elimination' |
| # '--eliminate-dead-branches' |
| # '--eliminate-dead-inserts' |
| # '--redundancy-elimination' |
| # '--eliminate-local-single-block' |
| # '--eliminate-local-multi-store' |
| # '--simplify-instructions' |
| # '--eliminate-local-multi-store' |
| # '--eliminate-dead-branches' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--combine-access-chains' |
| # '--eliminate-local-multi-store' |
| # '--eliminate-local-single-block' |
| # '--eliminate-local-single-store' |
| # '--eliminate-dead-branches' |
| # '--merge-blocks' |
| # '--eliminate-dead-branches' |
| # '--merge-blocks' |
| # '--simplify-instructions' |
| # '--eliminate-dead-branches' |
| # '--merge-blocks' |
| # '--eliminate-local-multi-store' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--ccp' |
| # '--eliminate-local-single-store' |
| # '--redundancy-elimination' |
| # '--eliminate-local-multi-store' |
| # '--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 _float_1_0 _GLF_uniform_float_values[0] |
| # |
| # precision highp int; |
| # precision highp float; |
| # |
| # // Contents of _GLF_uniform_float_values: 1.0 |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # float _GLF_uniform_float_values[1]; |
| # }; |
| # |
| # // Contents of _GLF_uniform_int_values: [0, 1] |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # int _GLF_uniform_int_values[2]; |
| # }; |
| # |
| # // Contents of zero: 0 |
| # layout(set = 0, binding = 2) uniform buf2 |
| # { |
| # int zero; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # vec3 v = vec3(_int_1); |
| # // Static out of bound access required to hit the coverage point. |
| # int a = 3; |
| # |
| # // Always false. |
| # if(zero > _int_0) |
| # { |
| # // Out of bounds access but never executed. |
| # v[a] = _float_1_0; |
| # } |
| # |
| # _GLF_color = vec4(v[_int_1], _int_0, _int_0, _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: 66 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %51 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %9 "v" |
| OpName %14 "buf1" |
| OpMemberName %14 0 "_GLF_uniform_int_values" |
| OpName %16 "" |
| OpName %27 "buf2" |
| OpMemberName %27 0 "zero" |
| OpName %29 "" |
| OpName %41 "buf0" |
| OpMemberName %41 0 "_GLF_uniform_float_values" |
| OpName %43 "" |
| OpName %51 "_GLF_color" |
| OpDecorate %13 ArrayStride 16 |
| OpMemberDecorate %14 0 Offset 0 |
| OpDecorate %14 Block |
| OpDecorate %16 DescriptorSet 0 |
| OpDecorate %16 Binding 1 |
| OpMemberDecorate %27 0 Offset 0 |
| OpDecorate %27 Block |
| OpDecorate %29 DescriptorSet 0 |
| OpDecorate %29 Binding 2 |
| OpDecorate %40 ArrayStride 16 |
| OpMemberDecorate %41 0 Offset 0 |
| OpDecorate %41 Block |
| OpDecorate %43 DescriptorSet 0 |
| OpDecorate %43 Binding 0 |
| OpDecorate %51 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 3 |
| %8 = OpTypePointer Function %7 |
| %10 = OpTypeInt 32 1 |
| %11 = OpTypeInt 32 0 |
| %12 = OpConstant %11 2 |
| %13 = OpTypeArray %10 %12 |
| %14 = OpTypeStruct %13 |
| %15 = OpTypePointer Uniform %14 |
| %16 = OpVariable %15 Uniform |
| %17 = OpConstant %10 0 |
| %18 = OpConstant %10 1 |
| %19 = OpTypePointer Uniform %10 |
| %26 = OpConstant %10 3 |
| %27 = OpTypeStruct %10 |
| %28 = OpTypePointer Uniform %27 |
| %29 = OpVariable %28 Uniform |
| %34 = OpTypeBool |
| %39 = OpConstant %11 1 |
| %40 = OpTypeArray %6 %39 |
| %41 = OpTypeStruct %40 |
| %42 = OpTypePointer Uniform %41 |
| %43 = OpVariable %42 Uniform |
| %44 = OpTypePointer Uniform %6 |
| %47 = OpTypePointer Function %6 |
| %49 = OpTypeVector %6 4 |
| %50 = OpTypePointer Output %49 |
| %51 = OpVariable %50 Output |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %9 = OpVariable %8 Function |
| %20 = OpAccessChain %19 %16 %17 %18 |
| %21 = OpLoad %10 %20 |
| %22 = OpConvertSToF %6 %21 |
| %23 = OpCompositeConstruct %7 %22 %22 %22 |
| OpStore %9 %23 |
| %30 = OpAccessChain %19 %29 %17 |
| %31 = OpLoad %10 %30 |
| %32 = OpAccessChain %19 %16 %17 %17 |
| %33 = OpLoad %10 %32 |
| %35 = OpSGreaterThan %34 %31 %33 |
| OpSelectionMerge %37 None |
| OpBranchConditional %35 %36 %37 |
| %36 = OpLabel |
| %45 = OpAccessChain %44 %43 %17 %17 |
| %46 = OpLoad %6 %45 |
| %48 = OpAccessChain %47 %9 %26 |
| OpStore %48 %46 |
| OpBranch %37 |
| %37 = OpLabel |
| %54 = OpAccessChain %47 %9 %21 |
| %55 = OpLoad %6 %54 |
| %58 = OpConvertSToF %6 %33 |
| %65 = OpCompositeConstruct %49 %55 %58 %58 %22 |
| OpStore %51 %65 |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # zero |
| BUFFER variant_zero DATA_TYPE int32[] STD140 DATA |
| 0 |
| END |
| # _GLF_uniform_int_values |
| BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA |
| 0 1 |
| END |
| # _GLF_uniform_float_values |
| BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA |
| 1.0 |
| 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_zero AS uniform DESCRIPTOR_SET 0 BINDING 2 |
| BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 1 |
| BIND BUFFER variant__GLF_uniform_float_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 |