| #!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_1 _GLF_uniform_int_values[0] |
| # #define _int_0 _GLF_uniform_int_values[1] |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # // Contents of _GLF_uniform_int_values: [1, 0] |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # int _GLF_uniform_int_values[2]; |
| # }; |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # const int _GLF_global_loop_bound = 100; |
| # int _GLF_global_loop_count = 0; |
| # |
| # void main() |
| # { |
| # while(_GLF_global_loop_count < _GLF_global_loop_bound) |
| # { |
| # _GLF_global_loop_count ++; |
| # |
| # if(_GLF_global_loop_count * _GLF_global_loop_count > 10) |
| # { |
| # break; |
| # } |
| # } |
| # |
| # // Always true. |
| # if(_GLF_global_loop_count == 4) |
| # { |
| # _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); |
| # } |
| # else |
| # { |
| # _GLF_color = vec4(_int_0); |
| # } |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 64 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %38 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %8 "_GLF_global_loop_count" |
| OpName %38 "_GLF_color" |
| OpName %42 "buf0" |
| OpMemberName %42 0 "_GLF_uniform_int_values" |
| OpName %44 "" |
| OpDecorate %38 Location 0 |
| OpDecorate %41 ArrayStride 16 |
| OpMemberDecorate %42 0 Offset 0 |
| OpDecorate %42 Block |
| OpDecorate %44 DescriptorSet 0 |
| OpDecorate %44 Binding 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypePointer Private %6 |
| %8 = OpVariable %7 Private |
| %9 = OpConstant %6 0 |
| %16 = OpConstant %6 100 |
| %17 = OpTypeBool |
| %20 = OpConstant %6 1 |
| %25 = OpConstant %6 10 |
| %31 = OpConstant %6 4 |
| %35 = OpTypeFloat 32 |
| %36 = OpTypeVector %35 4 |
| %37 = OpTypePointer Output %36 |
| %38 = OpVariable %37 Output |
| %39 = OpTypeInt 32 0 |
| %40 = OpConstant %39 2 |
| %41 = OpTypeArray %6 %40 |
| %42 = OpTypeStruct %41 |
| %43 = OpTypePointer Uniform %42 |
| %44 = OpVariable %43 Uniform |
| %45 = OpTypePointer Uniform %6 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| OpStore %8 %9 |
| OpBranch %10 |
| %10 = OpLabel |
| OpLoopMerge %12 %13 None |
| OpBranch %14 |
| %14 = OpLabel |
| %15 = OpLoad %6 %8 |
| %18 = OpSLessThan %17 %15 %16 |
| OpBranchConditional %18 %11 %12 |
| %11 = OpLabel |
| %19 = OpLoad %6 %8 |
| %21 = OpIAdd %6 %19 %20 |
| OpStore %8 %21 |
| %22 = OpLoad %6 %8 |
| %23 = OpLoad %6 %8 |
| %24 = OpIMul %6 %22 %23 |
| %26 = OpSGreaterThan %17 %24 %25 |
| OpSelectionMerge %28 None |
| OpBranchConditional %26 %27 %28 |
| %27 = OpLabel |
| OpBranch %12 |
| %28 = OpLabel |
| OpBranch %13 |
| %13 = OpLabel |
| OpBranch %10 |
| %12 = OpLabel |
| %30 = OpLoad %6 %8 |
| %32 = OpIEqual %17 %30 %31 |
| OpSelectionMerge %34 None |
| OpBranchConditional %32 %33 %59 |
| %33 = OpLabel |
| %46 = OpAccessChain %45 %44 %9 %9 |
| %47 = OpLoad %6 %46 |
| %48 = OpConvertSToF %35 %47 |
| %49 = OpAccessChain %45 %44 %9 %20 |
| %50 = OpLoad %6 %49 |
| %51 = OpConvertSToF %35 %50 |
| %52 = OpAccessChain %45 %44 %9 %20 |
| %53 = OpLoad %6 %52 |
| %54 = OpConvertSToF %35 %53 |
| %55 = OpAccessChain %45 %44 %9 %9 |
| %56 = OpLoad %6 %55 |
| %57 = OpConvertSToF %35 %56 |
| %58 = OpCompositeConstruct %36 %48 %51 %54 %57 |
| OpStore %38 %58 |
| OpBranch %34 |
| %59 = OpLabel |
| %60 = OpAccessChain %45 %44 %9 %20 |
| %61 = OpLoad %6 %60 |
| %62 = OpConvertSToF %35 %61 |
| %63 = OpCompositeConstruct %36 %62 %62 %62 %62 |
| OpStore %38 %63 |
| 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 |
| 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__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 |