--- /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 fragment shader with discard keyword and a return
+
+# The test passes because main always writes the color red; the discard statement is unreachable.
+
+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()
+# {
+# discard;
+# return vec3(1.0);
+# }
+# vec3 computePoint()
+# {
+# drawShape();
+# return vec3(1.0);
+# }
+# void main()
+# {
+# if (injectionSwitch.x > injectionSwitch.y) // always false
+# {
+# drawShape();
+# computePoint();
+# }
+#
+# _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: 46
+; Schema: 0
+ OpCapability Shader
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Fragment %4 "main" %43
+ OpExecutionMode %4 OriginUpperLeft
+ OpSource ESSL 310
+ OpName %4 "main"
+ OpName %9 "drawShape("
+ OpName %11 "computePoint("
+ OpName %22 "buf0"
+ OpMemberName %22 0 "injectionSwitch"
+ OpName %24 ""
+ OpName %43 "_GLF_color"
+ OpMemberDecorate %22 0 Offset 0
+ OpDecorate %22 Block
+ OpDecorate %24 DescriptorSet 0
+ OpDecorate %24 Binding 0
+ OpDecorate %43 Location 0
+ %2 = OpTypeVoid
+ %3 = OpTypeFunction %2
+ %6 = OpTypeFloat 32
+ %7 = OpTypeVector %6 3
+ %8 = OpTypeFunction %7
+ %14 = OpConstant %6 1
+ %15 = OpConstantComposite %7 %14 %14 %14
+ %21 = OpTypeVector %6 2
+ %22 = OpTypeStruct %21
+ %23 = OpTypePointer Uniform %22
+ %24 = OpVariable %23 Uniform
+ %25 = OpTypeInt 32 1
+ %26 = OpConstant %25 0
+ %27 = OpTypeInt 32 0
+ %28 = OpConstant %27 0
+ %29 = OpTypePointer Uniform %6
+ %32 = OpConstant %27 1
+ %35 = OpTypeBool
+ %41 = OpTypeVector %6 4
+ %42 = OpTypePointer Output %41
+ %43 = OpVariable %42 Output
+ %44 = OpConstant %6 0
+ %45 = OpConstantComposite %41 %14 %44 %44 %14
+ %4 = OpFunction %2 None %3
+ %5 = OpLabel
+ %30 = OpAccessChain %29 %24 %26 %28
+ %31 = OpLoad %6 %30
+ %33 = OpAccessChain %29 %24 %26 %32
+ %34 = OpLoad %6 %33
+ %36 = OpFOrdGreaterThan %35 %31 %34
+ OpSelectionMerge %38 None
+ OpBranchConditional %36 %37 %38
+ %37 = OpLabel
+ %39 = OpFunctionCall %7 %9
+ %40 = OpFunctionCall %7 %11
+ OpBranch %38
+ %38 = OpLabel
+ OpStore %43 %45
+ OpReturn
+ OpFunctionEnd
+ %9 = OpFunction %7 None %8
+ %10 = OpLabel
+ OpKill
+ OpFunctionEnd
+ %11 = OpFunction %7 None %8
+ %12 = OpLabel
+ %18 = OpFunctionCall %7 %9
+ OpReturnValue %15
+ 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