--- /dev/null
+#!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 shader with a switch statement containing unreachable discards
+
+# The test passes because the shader always writes the color red.
+
+# Optimized using spirv-opt with the following arguments:
+# '-O'
+# spirv-opt commit hash: 6b072126595dd8c2448eb1fda616251c5e6d7079
+
+
+
+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 {
+# vec2 injectionSwitch;
+# };
+# vec3 drawShape(vec2 square)
+# {
+# switch(int(injectionSwitch.x))
+# {
+# case 0:
+# return vec3(1.0, 0.0, 0.0);
+# case 67:
+# do
+# {
+# if(1.0 < square.x)
+# {
+# }
+# else
+# {
+# discard;
+# }
+# discard;
+# }
+# while(true);
+# }
+# return vec3(1.0);
+# }
+# void main()
+# {
+# vec2 center;
+# vec3 color = vec3(0.0);
+# for(
+# int i = 0;
+# i < 1;
+# i++
+# )
+# {
+# color = drawShape(center);
+# if(length(color) <= 0.0)
+# {
+# continue;
+# }
+# }
+# _GLF_color = vec4(color, 1.0);
+# }
+SHADER fragment variant_fragment_shader SPIRV-ASM
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 7
+; Bound: 139
+; Schema: 0
+ OpCapability Shader
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Fragment %4 "main" %78
+ OpExecutionMode %4 OriginUpperLeft
+ OpSource ESSL 310
+ OpName %4 "main"
+ OpName %14 "buf0"
+ OpMemberName %14 0 "injectionSwitch"
+ OpName %16 ""
+ OpName %78 "_GLF_color"
+ OpMemberDecorate %14 0 Offset 0
+ OpDecorate %14 Block
+ OpDecorate %16 DescriptorSet 0
+ OpDecorate %16 Binding 0
+ OpDecorate %75 RelaxedPrecision
+ OpDecorate %78 Location 0
+ OpDecorate %132 RelaxedPrecision
+ OpDecorate %132 RelaxedPrecision
+ OpDecorate %132 RelaxedPrecision
+ %2 = OpTypeVoid
+ %3 = OpTypeFunction %2
+ %6 = OpTypeFloat 32
+ %7 = OpTypeVector %6 2
+ %9 = OpTypeVector %6 3
+ %14 = OpTypeStruct %7
+ %15 = OpTypePointer Uniform %14
+ %16 = OpVariable %15 Uniform
+ %17 = OpTypeInt 32 1
+ %18 = OpConstant %17 0
+ %19 = OpTypeInt 32 0
+ %20 = OpConstant %19 0
+ %21 = OpTypePointer Uniform %6
+ %28 = OpConstant %6 1
+ %29 = OpConstant %6 0
+ %30 = OpConstantComposite %9 %28 %29 %29
+ %39 = OpTypeBool
+ %48 = OpConstantComposite %9 %28 %28 %28
+ %53 = OpConstantComposite %9 %29 %29 %29
+ %62 = OpConstant %17 1
+ %76 = OpTypeVector %6 4
+ %77 = OpTypePointer Output %76
+ %78 = OpVariable %77 Output
+ %135 = OpUndef %7
+ %4 = OpFunction %2 None %3
+ %5 = OpLabel
+ OpBranch %56
+ %56 = OpLabel
+ %133 = OpPhi %9 %53 %5 %137 %59
+ %132 = OpPhi %17 %18 %5 %75 %59
+ %63 = OpSLessThan %39 %132 %62
+ OpLoopMerge %58 %59 None
+ OpBranchConditional %63 %57 %58
+ %57 = OpLabel
+ OpBranch %104
+ %104 = OpLabel
+ OpLoopMerge %105 %106 None
+ OpBranch %107
+ %107 = OpLabel
+ %108 = OpAccessChain %21 %16 %18 %20
+ %109 = OpLoad %6 %108
+ %110 = OpConvertFToS %17 %109
+ OpSelectionMerge %111 None
+ OpSwitch %110 %111 0 %112 67 %113
+ %113 = OpLabel
+ OpBranch %114
+ %114 = OpLabel
+ OpLoopMerge %115 %116 None
+ OpBranch %117
+ %117 = OpLabel
+ %119 = OpCompositeExtract %6 %135 0
+ %120 = OpFOrdLessThan %39 %28 %119
+ OpSelectionMerge %122 None
+ OpBranchConditional %120 %122 %123
+ %123 = OpLabel
+ %124 = OpFunctionCall %2 %84
+ %125 = OpUndef %9
+ OpBranch %115
+ %122 = OpLabel
+ %126 = OpFunctionCall %2 %84
+ %127 = OpUndef %9
+ OpBranch %115
+ %116 = OpLabel
+ OpBranch %114
+ %115 = OpLabel
+ %138 = OpPhi %9 %125 %123 %127 %122
+ OpBranch %105
+ %112 = OpLabel
+ OpBranch %105
+ %111 = OpLabel
+ OpBranch %105
+ %106 = OpLabel
+ OpBranch %104
+ %105 = OpLabel
+ %137 = OpPhi %9 %138 %115 %30 %112 %48 %111
+ %69 = OpExtInst %6 %1 Length %137
+ %70 = OpFOrdLessThanEqual %39 %69 %29
+ OpSelectionMerge %72 None
+ OpBranchConditional %70 %71 %72
+ %71 = OpLabel
+ OpBranch %59
+ %72 = OpLabel
+ OpBranch %59
+ %59 = OpLabel
+ %75 = OpIAdd %17 %132 %62
+ OpBranch %56
+ %58 = OpLabel
+ %80 = OpCompositeExtract %6 %133 0
+ %81 = OpCompositeExtract %6 %133 1
+ %82 = OpCompositeExtract %6 %133 2
+ %83 = OpCompositeConstruct %76 %80 %81 %82 %28
+ OpStore %78 %83
+ OpReturn
+ OpFunctionEnd
+ %84 = OpFunction %2 None %3
+ %85 = OpLabel
+ OpKill
+ OpFunctionEnd
+END
+
+# uniforms for variant
+
+# injectionSwitch
+BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA
+ 0.0 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_injectionSwitch 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
projects / platform / upstream / VK-GL-CTS.git / commitdiff