| #!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: A fragment shader that covers specific NIR code paths |
| |
| # The test passes because the shader always writes red. |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '--eliminate-dead-branches' |
| # '--eliminate-local-multi-store' |
| # '--eliminate-local-single-store' |
| # '--simplify-instructions' |
| # '--eliminate-dead-branches' |
| # '--copy-propagate-arrays' |
| # '--copy-propagate-arrays' |
| # '--eliminate-dead-inserts' |
| # '--vector-dce' |
| # '--vector-dce' |
| # '--inline-entry-points-exhaustive' |
| # '--eliminate-local-single-store' |
| # '--eliminate-local-single-store' |
| # '--simplify-instructions' |
| # '--eliminate-local-single-block' |
| # '--ccp' |
| # '--private-to-local' |
| # '--scalar-replacement=100' |
| # '--eliminate-local-single-block' |
| # '--private-to-local' |
| # '--scalar-replacement=100' |
| # '--simplify-instructions' |
| # '--eliminate-dead-branches' |
| # '--merge-blocks' |
| # spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af |
| |
| |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # #define _float_1_0 _GLF_uniform_float_values[0] |
| # #define _float_2_0 _GLF_uniform_float_values[1] |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # // Contents of _GLF_uniform_float_values: [1.0, 2.0] |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # float _GLF_uniform_float_values[2]; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # // Contents of zero: 0.0 |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # float zero; |
| # }; |
| # |
| # void main() |
| # { |
| # vec2 v0 = vec2(_float_1_0); |
| # vec4 v1 = vec4(v0.x); |
| # |
| # // Always true. |
| # if(zero != _float_1_0) |
| # { |
| # // Always false. |
| # if(zero == _float_2_0) |
| # { |
| # return; |
| # } |
| # v1.yz -= _float_1_0; |
| # } |
| # else |
| # { |
| # discard; |
| # } |
| # |
| # _GLF_color = v1; |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 62 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %61 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %9 "v0" |
| OpName %13 "buf0" |
| OpMemberName %13 0 "_GLF_uniform_float_values" |
| OpName %15 "" |
| OpName %24 "v1" |
| OpName %30 "buf1" |
| OpMemberName %30 0 "zero" |
| OpName %32 "" |
| OpName %61 "_GLF_color" |
| OpDecorate %12 ArrayStride 16 |
| OpMemberDecorate %13 0 Offset 0 |
| OpDecorate %13 Block |
| OpDecorate %15 DescriptorSet 0 |
| OpDecorate %15 Binding 0 |
| OpMemberDecorate %30 0 Offset 0 |
| OpDecorate %30 Block |
| OpDecorate %32 DescriptorSet 0 |
| OpDecorate %32 Binding 1 |
| OpDecorate %61 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 = OpTypeVector %6 4 |
| %23 = OpTypePointer Function %22 |
| %25 = OpConstant %10 0 |
| %26 = OpTypePointer Function %6 |
| %30 = OpTypeStruct %6 |
| %31 = OpTypePointer Uniform %30 |
| %32 = OpVariable %31 Uniform |
| %37 = OpTypeBool |
| %43 = OpConstant %16 1 |
| %60 = OpTypePointer Output %22 |
| %61 = OpVariable %60 Output |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %9 = OpVariable %8 Function |
| %24 = OpVariable %23 Function |
| %19 = OpAccessChain %18 %15 %17 %17 |
| %20 = OpLoad %6 %19 |
| %21 = OpCompositeConstruct %7 %20 %20 |
| OpStore %9 %21 |
| %27 = OpAccessChain %26 %9 %25 |
| %28 = OpLoad %6 %27 |
| %29 = OpCompositeConstruct %22 %28 %28 %28 %28 |
| OpStore %24 %29 |
| %33 = OpAccessChain %18 %32 %17 |
| %34 = OpLoad %6 %33 |
| %35 = OpAccessChain %18 %15 %17 %17 |
| %36 = OpLoad %6 %35 |
| %38 = OpFUnordNotEqual %37 %34 %36 |
| OpSelectionMerge %40 None |
| OpBranchConditional %38 %39 %58 |
| %39 = OpLabel |
| %41 = OpAccessChain %18 %32 %17 |
| %42 = OpLoad %6 %41 |
| %44 = OpAccessChain %18 %15 %17 %43 |
| %45 = OpLoad %6 %44 |
| %46 = OpFOrdEqual %37 %42 %45 |
| OpSelectionMerge %48 None |
| OpBranchConditional %46 %47 %48 |
| %47 = OpLabel |
| OpReturn |
| %48 = OpLabel |
| %50 = OpAccessChain %18 %15 %17 %17 |
| %51 = OpLoad %6 %50 |
| %53 = OpVectorShuffle %7 %29 %29 1 2 |
| %54 = OpCompositeConstruct %7 %51 %51 |
| %55 = OpFSub %7 %53 %54 |
| %57 = OpVectorShuffle %22 %29 %55 0 4 5 3 |
| OpStore %24 %57 |
| OpBranch %40 |
| %58 = OpLabel |
| OpKill |
| %40 = OpLabel |
| OpStore %61 %57 |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # zero |
| BUFFER variant_zero DATA_TYPE float STD140 DATA |
| 0.0 |
| END |
| # _GLF_uniform_float_values |
| BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA |
| 1.0 2.0 |
| 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_zero 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 |