| #!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 two loops and some matrices |
| |
| # The test passes because the fragment shader always writes red; the loops do nothing. |
| # The second loop condition is always false. |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 310 es |
| # precision highp float; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # mat4 matrix_a_uni; |
| # }; |
| # void main() |
| # { |
| # vec4 matrix_b; |
| # vec4 matrix_u; |
| # for ( |
| # int x = 4; |
| # x >= 1; |
| # x--) |
| # { |
| # matrix_u[x] = 1.0; |
| # } |
| # for ( |
| # int b = 4; |
| # matrix_a_uni[0][0] < -1.0; |
| # b--) |
| # { |
| # matrix_b[b] = (b > 1 ? min(matrix_b, matrix_b) : matrix_u)[1]; |
| # } |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 7 |
| ; Bound: 69 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %66 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %8 "x" |
| OpName %22 "matrix_u" |
| OpName %29 "b" |
| OpName %36 "buf0" |
| OpMemberName %36 0 "matrix_a_uni" |
| OpName %38 "" |
| OpName %47 "matrix_b" |
| OpName %66 "_GLF_color" |
| OpDecorate %8 RelaxedPrecision |
| OpDecorate %15 RelaxedPrecision |
| OpDecorate %23 RelaxedPrecision |
| OpDecorate %27 RelaxedPrecision |
| OpDecorate %28 RelaxedPrecision |
| OpDecorate %29 RelaxedPrecision |
| OpMemberDecorate %36 0 ColMajor |
| OpMemberDecorate %36 0 Offset 0 |
| OpMemberDecorate %36 0 MatrixStride 16 |
| OpDecorate %36 Block |
| OpDecorate %38 DescriptorSet 0 |
| OpDecorate %38 Binding 0 |
| OpDecorate %48 RelaxedPrecision |
| OpDecorate %49 RelaxedPrecision |
| OpDecorate %63 RelaxedPrecision |
| OpDecorate %64 RelaxedPrecision |
| OpDecorate %66 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypePointer Function %6 |
| %9 = OpConstant %6 4 |
| %16 = OpConstant %6 1 |
| %17 = OpTypeBool |
| %19 = OpTypeFloat 32 |
| %20 = OpTypeVector %19 4 |
| %21 = OpTypePointer Function %20 |
| %24 = OpConstant %19 1 |
| %25 = OpTypePointer Function %19 |
| %35 = OpTypeMatrix %20 4 |
| %36 = OpTypeStruct %35 |
| %37 = OpTypePointer Uniform %36 |
| %38 = OpVariable %37 Uniform |
| %39 = OpConstant %6 0 |
| %40 = OpTypeInt 32 0 |
| %41 = OpConstant %40 0 |
| %42 = OpTypePointer Uniform %19 |
| %45 = OpConstant %19 -1 |
| %59 = OpConstant %40 1 |
| %65 = OpTypePointer Output %20 |
| %66 = OpVariable %65 Output |
| %67 = OpConstant %19 0 |
| %68 = OpConstantComposite %20 %24 %67 %67 %24 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %8 = OpVariable %7 Function |
| %22 = OpVariable %21 Function |
| %29 = OpVariable %7 Function |
| %47 = OpVariable %21 Function |
| %51 = OpVariable %21 Function |
| OpStore %8 %9 |
| OpBranch %10 |
| %10 = OpLabel |
| OpLoopMerge %12 %13 None |
| OpBranch %14 |
| %14 = OpLabel |
| %15 = OpLoad %6 %8 |
| %18 = OpSGreaterThanEqual %17 %15 %16 |
| OpBranchConditional %18 %11 %12 |
| %11 = OpLabel |
| %23 = OpLoad %6 %8 |
| %26 = OpAccessChain %25 %22 %23 |
| OpStore %26 %24 |
| OpBranch %13 |
| %13 = OpLabel |
| %27 = OpLoad %6 %8 |
| %28 = OpISub %6 %27 %16 |
| OpStore %8 %28 |
| OpBranch %10 |
| %12 = OpLabel |
| OpStore %29 %9 |
| OpBranch %30 |
| %30 = OpLabel |
| OpLoopMerge %32 %33 None |
| OpBranch %34 |
| %34 = OpLabel |
| %43 = OpAccessChain %42 %38 %39 %39 %41 |
| %44 = OpLoad %19 %43 |
| %46 = OpFOrdLessThan %17 %44 %45 |
| OpBranchConditional %46 %31 %32 |
| %31 = OpLabel |
| %48 = OpLoad %6 %29 |
| %49 = OpLoad %6 %29 |
| %50 = OpSGreaterThan %17 %49 %16 |
| OpSelectionMerge %53 None |
| OpBranchConditional %50 %52 %57 |
| %52 = OpLabel |
| %54 = OpLoad %20 %47 |
| %55 = OpLoad %20 %47 |
| %56 = OpExtInst %20 %1 FMin %54 %55 |
| OpStore %51 %56 |
| OpBranch %53 |
| %57 = OpLabel |
| %58 = OpLoad %20 %22 |
| OpStore %51 %58 |
| OpBranch %53 |
| %53 = OpLabel |
| %60 = OpAccessChain %25 %51 %59 |
| %61 = OpLoad %19 %60 |
| %62 = OpAccessChain %25 %47 %48 |
| OpStore %62 %61 |
| OpBranch %33 |
| %33 = OpLabel |
| %63 = OpLoad %6 %29 |
| %64 = OpISub %6 %63 %16 |
| OpStore %29 %64 |
| OpBranch %30 |
| %32 = OpLabel |
| OpStore %66 %68 |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # matrix_a_uni |
| BUFFER variant_matrix_a_uni DATA_TYPE mat4x4<float> DATA |
| 1.0 5.0 3.0 7.0 9.0 6.0 7.0 8.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 |
| 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_matrix_a_uni 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 |