| #!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 LLVM code paths |
| |
| # 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 320 es |
| # #define _int_0 _GLF_uniform_int_values[0] |
| # #define _int_1 _GLF_uniform_int_values[1] |
| # #define _float_0_0 _GLF_uniform_float_values[0] |
| # |
| # precision highp int; |
| # precision highp float; |
| # |
| # // Contents of _GLF_uniform_float_values: 0.0 |
| # 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]; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # // The result of asin is undefined. |
| # float f0 = asin(2.0); |
| # float f1 = fract(f0); |
| # |
| # // Always true. |
| # if(gl_FragCoord.x > _float_0_0) |
| # { |
| # _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); |
| # } |
| # else |
| # { |
| # // f1 is undefined, but this branch is never executed. |
| # _GLF_color = vec4(f1); |
| # } |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 60 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %15 %36 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %8 "f0" |
| OpName %10 "f1" |
| OpName %15 "gl_FragCoord" |
| OpName %23 "buf0" |
| OpMemberName %23 0 "_GLF_uniform_float_values" |
| OpName %25 "" |
| OpName %36 "_GLF_color" |
| OpName %39 "buf1" |
| OpMemberName %39 0 "_GLF_uniform_int_values" |
| OpName %41 "" |
| OpDecorate %15 BuiltIn FragCoord |
| OpDecorate %22 ArrayStride 16 |
| OpMemberDecorate %23 0 Offset 0 |
| OpDecorate %23 Block |
| OpDecorate %25 DescriptorSet 0 |
| OpDecorate %25 Binding 0 |
| OpDecorate %36 Location 0 |
| OpDecorate %38 ArrayStride 16 |
| OpMemberDecorate %39 0 Offset 0 |
| OpDecorate %39 Block |
| OpDecorate %41 DescriptorSet 0 |
| OpDecorate %41 Binding 1 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypePointer Function %6 |
| %9 = OpConstant %6 0x1.8p+128 |
| %13 = OpTypeVector %6 4 |
| %14 = OpTypePointer Input %13 |
| %15 = OpVariable %14 Input |
| %16 = OpTypeInt 32 0 |
| %17 = OpConstant %16 0 |
| %18 = OpTypePointer Input %6 |
| %21 = OpConstant %16 1 |
| %22 = OpTypeArray %6 %21 |
| %23 = OpTypeStruct %22 |
| %24 = OpTypePointer Uniform %23 |
| %25 = OpVariable %24 Uniform |
| %26 = OpTypeInt 32 1 |
| %27 = OpConstant %26 0 |
| %28 = OpTypePointer Uniform %6 |
| %31 = OpTypeBool |
| %35 = OpTypePointer Output %13 |
| %36 = OpVariable %35 Output |
| %37 = OpConstant %16 2 |
| %38 = OpTypeArray %26 %37 |
| %39 = OpTypeStruct %38 |
| %40 = OpTypePointer Uniform %39 |
| %41 = OpVariable %40 Uniform |
| %42 = OpConstant %26 1 |
| %43 = OpTypePointer Uniform %26 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %8 = OpVariable %7 Function |
| %10 = OpVariable %7 Function |
| OpStore %8 %9 |
| %11 = OpLoad %6 %8 |
| %12 = OpExtInst %6 %1 Fract %11 |
| OpStore %10 %12 |
| %19 = OpAccessChain %18 %15 %17 |
| %20 = OpLoad %6 %19 |
| %29 = OpAccessChain %28 %25 %27 %27 |
| %30 = OpLoad %6 %29 |
| %32 = OpFOrdGreaterThan %31 %20 %30 |
| OpSelectionMerge %34 None |
| OpBranchConditional %32 %33 %57 |
| %33 = OpLabel |
| %44 = OpAccessChain %43 %41 %27 %42 |
| %45 = OpLoad %26 %44 |
| %46 = OpConvertSToF %6 %45 |
| %47 = OpAccessChain %43 %41 %27 %27 |
| %48 = OpLoad %26 %47 |
| %49 = OpConvertSToF %6 %48 |
| %50 = OpAccessChain %43 %41 %27 %27 |
| %51 = OpLoad %26 %50 |
| %52 = OpConvertSToF %6 %51 |
| %53 = OpAccessChain %43 %41 %27 %42 |
| %54 = OpLoad %26 %53 |
| %55 = OpConvertSToF %6 %54 |
| %56 = OpCompositeConstruct %13 %46 %49 %52 %55 |
| OpStore %36 %56 |
| OpBranch %34 |
| %57 = OpLabel |
| %58 = OpLoad %6 %10 |
| %59 = OpCompositeConstruct %13 %58 %58 %58 %58 |
| OpStore %36 %59 |
| OpBranch %34 |
| %34 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # _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 |
| 0.0 |
| 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__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 |