| #!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: Covers specific inst combine simplify demanded and inst combine shifts path |
| |
| # The test passes because the shader always writes red. |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '-O' |
| # spirv-opt commit hash: a187dd58a0485988841d325a85c8e6063f53500a |
| |
| |
| |
| 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 _int_0 _GLF_uniform_int_values[1] |
| # #define _float_0_0 _GLF_uniform_float_values[0] |
| # #define _float_256_0 _GLF_uniform_float_values[0] |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # // Contents of _GLF_uniform_float_values: [0.0, 256.0] |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # float _GLF_uniform_float_values[2]; |
| # }; |
| # |
| # // Contents of _GLF_uniform_int_values: [1, 0] |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # int _GLF_uniform_int_values[2]; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # vec2 v1 = vec2(_float_256_0); |
| # |
| # // v1.y becomes undefined. This results in an undefined value, but not in undefined behavior. |
| # v1[_int_1] = ldexp(v1.y, -256); |
| # |
| # vec2 v2 = v1 * mat2(_float_0_0); |
| # |
| # if (v2.x == _float_0_0) |
| # _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: 78 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %58 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %9 "v1" |
| OpName %13 "buf0" |
| OpMemberName %13 0 "_GLF_uniform_float_values" |
| OpName %15 "" |
| OpName %23 "buf1" |
| OpMemberName %23 0 "_GLF_uniform_int_values" |
| OpName %25 "" |
| OpName %58 "_GLF_color" |
| OpDecorate %12 ArrayStride 16 |
| OpMemberDecorate %13 0 Offset 0 |
| OpDecorate %13 Block |
| OpDecorate %15 DescriptorSet 0 |
| OpDecorate %15 Binding 0 |
| OpDecorate %22 ArrayStride 16 |
| OpMemberDecorate %23 0 Offset 0 |
| OpDecorate %23 Block |
| OpDecorate %25 DescriptorSet 0 |
| OpDecorate %25 Binding 1 |
| OpDecorate %58 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 2 |
| %8 = OpTypePointer Function %7 |
| %10 = OpTypeInt 32 0 |
| %11 = OpConstant %10 2 |
| %12 = OpTypeArray %6 %11 |
| %13 = OpTypeStruct %12 |
| %14 = OpTypePointer Uniform %13 |
| %15 = OpVariable %14 Uniform |
| %16 = OpTypeInt 32 1 |
| %17 = OpConstant %16 0 |
| %18 = OpTypePointer Uniform %6 |
| %22 = OpTypeArray %16 %11 |
| %23 = OpTypeStruct %22 |
| %24 = OpTypePointer Uniform %23 |
| %25 = OpVariable %24 Uniform |
| %26 = OpTypePointer Uniform %16 |
| %29 = OpConstant %10 1 |
| %30 = OpTypePointer Function %6 |
| %33 = OpConstant %16 -256 |
| %40 = OpTypeMatrix %7 2 |
| %42 = OpConstant %6 0 |
| %52 = OpTypeBool |
| %56 = OpTypeVector %6 4 |
| %57 = OpTypePointer Output %56 |
| %58 = OpVariable %57 Output |
| %62 = OpConstant %16 1 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %9 = OpVariable %8 Function |
| %19 = OpAccessChain %18 %15 %17 %17 |
| %20 = OpLoad %6 %19 |
| %21 = OpCompositeConstruct %7 %20 %20 |
| OpStore %9 %21 |
| %27 = OpAccessChain %26 %25 %17 %17 |
| %28 = OpLoad %16 %27 |
| %31 = OpAccessChain %30 %9 %29 |
| %32 = OpLoad %6 %31 |
| %34 = OpExtInst %6 %1 Ldexp %32 %33 |
| %35 = OpAccessChain %30 %9 %28 |
| OpStore %35 %34 |
| %37 = OpLoad %7 %9 |
| %43 = OpCompositeConstruct %7 %20 %42 |
| %44 = OpCompositeConstruct %7 %42 %20 |
| %45 = OpCompositeConstruct %40 %43 %44 |
| %46 = OpVectorTimesMatrix %7 %37 %45 |
| %49 = OpCompositeExtract %6 %46 0 |
| %53 = OpFOrdEqual %52 %49 %20 |
| OpSelectionMerge %55 None |
| OpBranchConditional %53 %54 %73 |
| %54 = OpLabel |
| %61 = OpConvertSToF %6 %28 |
| %63 = OpAccessChain %26 %25 %17 %62 |
| %64 = OpLoad %16 %63 |
| %65 = OpConvertSToF %6 %64 |
| %72 = OpCompositeConstruct %56 %61 %65 %65 %61 |
| OpStore %58 %72 |
| OpBranch %55 |
| %73 = OpLabel |
| %74 = OpAccessChain %26 %25 %17 %62 |
| %75 = OpLoad %16 %74 |
| %76 = OpConvertSToF %6 %75 |
| %77 = OpCompositeConstruct %56 %76 %76 %76 %76 |
| OpStore %58 %77 |
| OpBranch %55 |
| %55 = 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 |
| # _GLF_uniform_float_values |
| BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA |
| 0.0 256.0 |
| 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 |