--- /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 conditional return inside an infinite loop
+
+# The test passes because the shader always writes the color red.
+
+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;
+# };
+#
+# int GLF_live6tree[10];
+#
+# int GLF_live6search()
+# {
+# // This function is never accessed
+# int GLF_live6currentNode;
+# int GLF_live6index = 0;
+# while (true)
+# {
+# GLF_live6currentNode = GLF_live6tree[GLF_live6index];
+# if (GLF_live6currentNode != 1)
+# {
+# return 1;
+# }
+# GLF_live6index = 1;
+# }
+# return 1;
+# }
+#
+# void main()
+# {
+# if (injectionSwitch.x > 1.0) // Always false
+# {
+# GLF_live6search();
+# }
+# _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: 57
+; Schema: 0
+ OpCapability Shader
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Fragment %4 "main" %54
+ OpExecutionMode %4 OriginUpperLeft
+ OpSource ESSL 310
+ OpName %4 "main"
+ OpName %8 "GLF_live6search("
+ OpName %11 "GLF_live6index"
+ OpName %20 "GLF_live6currentNode"
+ OpName %25 "GLF_live6tree"
+ OpName %40 "buf0"
+ OpMemberName %40 0 "injectionSwitch"
+ OpName %42 ""
+ OpName %54 "_GLF_color"
+ OpDecorate %8 RelaxedPrecision
+ OpDecorate %11 RelaxedPrecision
+ OpDecorate %20 RelaxedPrecision
+ OpDecorate %25 RelaxedPrecision
+ OpDecorate %26 RelaxedPrecision
+ OpDecorate %29 RelaxedPrecision
+ OpDecorate %30 RelaxedPrecision
+ OpMemberDecorate %40 0 Offset 0
+ OpDecorate %40 Block
+ OpDecorate %42 DescriptorSet 0
+ OpDecorate %42 Binding 0
+ OpDecorate %51 RelaxedPrecision
+ OpDecorate %54 Location 0
+ %2 = OpTypeVoid
+ %3 = OpTypeFunction %2
+ %6 = OpTypeInt 32 1
+ %7 = OpTypeFunction %6
+ %10 = OpTypePointer Function %6
+ %12 = OpConstant %6 0
+ %18 = OpTypeBool
+ %19 = OpConstantTrue %18
+ %21 = OpTypeInt 32 0
+ %22 = OpConstant %21 10
+ %23 = OpTypeArray %6 %22
+ %24 = OpTypePointer Private %23
+ %25 = OpVariable %24 Private
+ %27 = OpTypePointer Private %6
+ %31 = OpConstant %6 1
+ %38 = OpTypeFloat 32
+ %39 = OpTypeVector %38 2
+ %40 = OpTypeStruct %39
+ %41 = OpTypePointer Uniform %40
+ %42 = OpVariable %41 Uniform
+ %43 = OpConstant %21 0
+ %44 = OpTypePointer Uniform %38
+ %47 = OpConstant %38 1
+ %52 = OpTypeVector %38 4
+ %53 = OpTypePointer Output %52
+ %54 = OpVariable %53 Output
+ %55 = OpConstant %38 0
+ %56 = OpConstantComposite %52 %47 %55 %55 %47
+ %4 = OpFunction %2 None %3
+ %5 = OpLabel
+ %45 = OpAccessChain %44 %42 %12 %43
+ %46 = OpLoad %38 %45
+ %48 = OpFOrdGreaterThan %18 %46 %47
+ OpSelectionMerge %50 None
+ OpBranchConditional %48 %49 %50
+ %49 = OpLabel
+ %51 = OpFunctionCall %6 %8
+ OpBranch %50
+ %50 = OpLabel
+ OpStore %54 %56
+ OpReturn
+ OpFunctionEnd
+ %8 = OpFunction %6 None %7
+ %9 = OpLabel
+ %11 = OpVariable %10 Function
+ %20 = OpVariable %10 Function
+ OpStore %11 %12
+ OpBranch %13
+ %13 = OpLabel
+ OpLoopMerge %15 %16 None
+ OpBranch %17
+ %17 = OpLabel
+ OpBranchConditional %19 %14 %15
+ %14 = OpLabel
+ %26 = OpLoad %6 %11
+ %28 = OpAccessChain %27 %25 %26
+ %29 = OpLoad %6 %28
+ OpStore %20 %29
+ %30 = OpLoad %6 %20
+ %32 = OpINotEqual %18 %30 %31
+ OpSelectionMerge %34 None
+ OpBranchConditional %32 %33 %34
+ %33 = OpLabel
+ OpReturnValue %31
+ %34 = OpLabel
+ OpStore %11 %31
+ OpBranch %16
+ %16 = OpLabel
+ OpBranch %13
+ %15 = OpLabel
+ OpReturnValue %31
+ 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