| #!amber |
| |
| # Copyright 2019 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 bug found by GraphicsFuzz. |
| |
| # Short description: A fragment shader with matrices and a return in a loop |
| |
| # Checks that all pixels are red. |
| # Passes because main always writes red to _GLF_color. |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '-O' |
| # spirv-opt commit hash: a2ef7be242bcacaa9127a3ce011602ec54b2c9ed |
| |
| # Derived from the following GLSL. |
| |
| # Fragment shader GLSL: |
| # #version 310 es |
| # |
| # precision highp float; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # vec3 f(mat2 m) |
| # { |
| # do |
| # { |
| # return vec3(1.0); |
| # } |
| # while(false); |
| # } |
| # |
| # void main() |
| # { |
| # mat2 m = mat2(0.0); |
| # if(gl_FragCoord.x >= 0.0) |
| # { |
| # m = mat2(1.0); |
| # } |
| # f(m * m); |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); |
| # } |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 7 |
| ; Bound: 52 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %31 %49 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %13 "f(mf22;" |
| OpName %12 "m" |
| OpName %31 "gl_FragCoord" |
| OpName %46 "param" |
| OpName %49 "_GLF_color" |
| OpDecorate %31 BuiltIn FragCoord |
| OpDecorate %49 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 2 |
| %8 = OpTypeMatrix %7 2 |
| %9 = OpTypePointer Function %8 |
| %10 = OpTypeVector %6 3 |
| %11 = OpTypeFunction %10 %9 |
| %19 = OpConstant %6 1 |
| %20 = OpConstantComposite %10 %19 %19 %19 |
| %22 = OpTypeBool |
| %26 = OpConstant %6 0 |
| %27 = OpConstantComposite %7 %26 %26 |
| %28 = OpConstantComposite %8 %27 %27 |
| %29 = OpTypeVector %6 4 |
| %30 = OpTypePointer Input %29 |
| %31 = OpVariable %30 Input |
| %32 = OpTypeInt 32 0 |
| %33 = OpConstant %32 0 |
| %34 = OpTypePointer Input %6 |
| %40 = OpConstantComposite %7 %19 %26 |
| %41 = OpConstantComposite %7 %26 %19 |
| %42 = OpConstantComposite %8 %40 %41 |
| %48 = OpTypePointer Output %29 |
| %49 = OpVariable %48 Output |
| %50 = OpConstantComposite %29 %19 %26 %26 %19 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %46 = OpVariable %9 Function |
| %35 = OpAccessChain %34 %31 %33 |
| %36 = OpLoad %6 %35 |
| %37 = OpFOrdGreaterThanEqual %22 %36 %26 |
| OpSelectionMerge %39 None |
| OpBranchConditional %37 %38 %39 |
| %38 = OpLabel |
| OpBranch %39 |
| %39 = OpLabel |
| %51 = OpPhi %8 %28 %5 %42 %38 |
| %45 = OpMatrixTimesMatrix %8 %51 %51 |
| OpStore %46 %45 |
| %47 = OpFunctionCall %10 %13 %46 |
| OpStore %49 %50 |
| OpReturn |
| OpFunctionEnd |
| %13 = OpFunction %10 None %11 |
| %12 = OpFunctionParameter %9 |
| %14 = OpLabel |
| OpBranch %15 |
| %15 = OpLabel |
| OpLoopMerge %17 %18 None |
| OpBranch %16 |
| %16 = OpLabel |
| OpReturnValue %20 |
| %18 = OpLabel |
| OpBranch %15 |
| %17 = OpLabel |
| OpUnreachable |
| OpFunctionEnd |
| 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 |
| 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 |
| |