--- /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 always false if in switch statement
+
+# The test passes because the shader always writes the color red
+
+# Optimized using spirv-opt with the following arguments:
+# '--private-to-local'
+# '--eliminate-local-multi-store'
+# '--simplify-instructions'
+# '--eliminate-dead-inserts'
+# spirv-opt commit hash: 4a00a80c40484a6f6f72f48c9d34943cf8f180d4
+
+
+
+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;
+#
+# void main()
+# {
+# switch (0)
+# {
+# case 0:
+# if (false)
+# {
+# }
+# }
+#
+# _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: 22
+; Schema: 0
+ OpCapability Shader
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Fragment %4 "main" %18
+ OpExecutionMode %4 OriginUpperLeft
+ OpSource ESSL 310
+ OpName %4 "main"
+ OpName %18 "_GLF_color"
+ OpDecorate %18 Location 0
+ %2 = OpTypeVoid
+ %3 = OpTypeFunction %2
+ %6 = OpTypeInt 32 1
+ %7 = OpConstant %6 0
+ %10 = OpTypeBool
+ %11 = OpConstantFalse %10
+ %15 = OpTypeFloat 32
+ %16 = OpTypeVector %15 4
+ %17 = OpTypePointer Output %16
+ %18 = OpVariable %17 Output
+ %19 = OpConstant %15 1
+ %20 = OpConstant %15 0
+ %21 = OpConstantComposite %16 %19 %20 %20 %19
+ %4 = OpFunction %2 None %3
+ %5 = OpLabel
+ OpSelectionMerge %9 None
+ OpSwitch %7 %9 0 %8
+ %8 = OpLabel
+ OpSelectionMerge %13 None
+ OpBranchConditional %11 %12 %13
+ %12 = OpLabel
+ OpBranch %13
+ %13 = OpLabel
+ OpBranch %9
+ %9 = OpLabel
+ OpStore %18 %21
+ OpReturn
+ OpFunctionEnd
+END
+
+# uniforms for variant
+
+
+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
+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
{ "return-in-loop-in-function.amber", "return-in-loop-in-function", "A fragment shader with early return from loop in function" },
{ "similar-nested-ifs.amber", "similar-nested-ifs", "A fragment shader with similar nested ifs and loops" },
{ "struct-used-as-temporary.amber", "struct-used-as-temporary", "A fragment shader that uses a temporary struct variable" },
+ { "switch-with-empty-if-false.amber", "switch-with-empty-if-false", "A fragment shader with always false if in switch statement" },
{ "swizzle-struct-init-min.amber", "swizzle-struct-init-min", "A fragment shader that uses vector swizzles, struct initializers, and min" },
{ "two-loops-matrix.amber", "two-loops-matrix", "A fragment shader with two loops and some matrices" },
{ "two-loops-set-struct.amber", "two-loops-set-struct", "A fragment shader with two loops that write to a struct" },
projects / platform / upstream / VK-GL-CTS.git / commitdiff