| #!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 a specific peephole optimizer code path |
| |
| # The test passes because the shader always writes red. |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 310 es |
| # #define _int_1 _GLF_uniform_int_values[0] |
| # #define _float_1_2 _GLF_uniform_float_values[0] |
| # #define _float_0_0 _GLF_uniform_float_values[1] |
| # #define _float_1_0 _GLF_uniform_float_values[2] |
| # |
| # precision highp float; |
| # |
| # precision highp int; |
| # |
| # // Contents of _GLF_uniform_int_values: 1 |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # int _GLF_uniform_int_values[1]; |
| # }; |
| # |
| # // Contents of _GLF_uniform_float_values: [1.2, 0.0, 1.0] |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # float _GLF_uniform_float_values[3]; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # float a = _float_1_2; |
| # |
| # // Always true. |
| # if (!(gl_FragCoord.x < _float_0_0)) |
| # { |
| # // Always true. |
| # if (!(gl_FragCoord.x < _float_0_0)) |
| # { |
| # // Always false. |
| # if (!(gl_FragCoord.x > _float_0_0)) |
| # { |
| # discard; |
| # } |
| # a = _float_1_0; |
| # } |
| # } |
| # _GLF_color = vec4(_int_1, acosh(a), acosh(a), _int_1); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 8 |
| ; Bound: 74 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %22 %56 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %8 "a" |
| OpName %12 "buf1" |
| OpMemberName %12 0 "_GLF_uniform_float_values" |
| OpName %14 "" |
| OpName %22 "gl_FragCoord" |
| OpName %56 "_GLF_color" |
| OpName %59 "buf0" |
| OpMemberName %59 0 "_GLF_uniform_int_values" |
| OpName %61 "" |
| OpDecorate %11 ArrayStride 16 |
| OpMemberDecorate %12 0 Offset 0 |
| OpDecorate %12 Block |
| OpDecorate %14 DescriptorSet 0 |
| OpDecorate %14 Binding 1 |
| OpDecorate %22 BuiltIn FragCoord |
| OpDecorate %56 Location 0 |
| OpDecorate %58 ArrayStride 16 |
| OpMemberDecorate %59 0 Offset 0 |
| OpDecorate %59 Block |
| OpDecorate %61 DescriptorSet 0 |
| OpDecorate %61 Binding 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypePointer Function %6 |
| %9 = OpTypeInt 32 0 |
| %10 = OpConstant %9 3 |
| %11 = OpTypeArray %6 %10 |
| %12 = OpTypeStruct %11 |
| %13 = OpTypePointer Uniform %12 |
| %14 = OpVariable %13 Uniform |
| %15 = OpTypeInt 32 1 |
| %16 = OpConstant %15 0 |
| %17 = OpTypePointer Uniform %6 |
| %20 = OpTypeVector %6 4 |
| %21 = OpTypePointer Input %20 |
| %22 = OpVariable %21 Input |
| %23 = OpConstant %9 0 |
| %24 = OpTypePointer Input %6 |
| %27 = OpConstant %15 1 |
| %30 = OpTypeBool |
| %52 = OpConstant %15 2 |
| %55 = OpTypePointer Output %20 |
| %56 = OpVariable %55 Output |
| %57 = OpConstant %9 1 |
| %58 = OpTypeArray %15 %57 |
| %59 = OpTypeStruct %58 |
| %60 = OpTypePointer Uniform %59 |
| %61 = OpVariable %60 Uniform |
| %62 = OpTypePointer Uniform %15 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %8 = OpVariable %7 Function |
| %18 = OpAccessChain %17 %14 %16 %16 |
| %19 = OpLoad %6 %18 |
| OpStore %8 %19 |
| %25 = OpAccessChain %24 %22 %23 |
| %26 = OpLoad %6 %25 |
| %28 = OpAccessChain %17 %14 %16 %27 |
| %29 = OpLoad %6 %28 |
| %31 = OpFOrdLessThan %30 %26 %29 |
| %32 = OpLogicalNot %30 %31 |
| OpSelectionMerge %34 None |
| OpBranchConditional %32 %33 %34 |
| %33 = OpLabel |
| %35 = OpAccessChain %24 %22 %23 |
| %36 = OpLoad %6 %35 |
| %37 = OpAccessChain %17 %14 %16 %27 |
| %38 = OpLoad %6 %37 |
| %39 = OpFOrdLessThan %30 %36 %38 |
| %40 = OpLogicalNot %30 %39 |
| OpSelectionMerge %42 None |
| OpBranchConditional %40 %41 %42 |
| %41 = OpLabel |
| %43 = OpAccessChain %24 %22 %23 |
| %44 = OpLoad %6 %43 |
| %45 = OpAccessChain %17 %14 %16 %27 |
| %46 = OpLoad %6 %45 |
| %47 = OpFOrdGreaterThan %30 %44 %46 |
| %48 = OpLogicalNot %30 %47 |
| OpSelectionMerge %50 None |
| OpBranchConditional %48 %49 %50 |
| %49 = OpLabel |
| OpKill |
| %50 = OpLabel |
| %53 = OpAccessChain %17 %14 %16 %52 |
| %54 = OpLoad %6 %53 |
| OpStore %8 %54 |
| OpBranch %42 |
| %42 = OpLabel |
| OpBranch %34 |
| %34 = OpLabel |
| %63 = OpAccessChain %62 %61 %16 %16 |
| %64 = OpLoad %15 %63 |
| %65 = OpConvertSToF %6 %64 |
| %66 = OpLoad %6 %8 |
| %67 = OpExtInst %6 %1 Acosh %66 |
| %68 = OpLoad %6 %8 |
| %69 = OpExtInst %6 %1 Acosh %68 |
| %70 = OpAccessChain %62 %61 %16 %16 |
| %71 = OpLoad %15 %70 |
| %72 = OpConvertSToF %6 %71 |
| %73 = OpCompositeConstruct %20 %65 %67 %69 %72 |
| OpStore %56 %73 |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # _GLF_uniform_float_values |
| BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA |
| 1.2 0.0 1.0 |
| END |
| # _GLF_uniform_int_values |
| BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA |
| 1 |
| 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 |