206 lines
6.1 KiB
Plaintext
206 lines
6.1 KiB
Plaintext
#!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 GraphicsFuzz.
|
|
|
|
# Short description: A fragment shader that covers a specific single block elimination path.
|
|
|
|
# The test passes because shader always writes red.
|
|
|
|
SHADER vertex variant_vertex_shader PASSTHROUGH
|
|
|
|
# variant_fragment_shader is derived from the following GLSL:
|
|
# #version 310 es
|
|
# precision highp float;
|
|
#
|
|
# layout(set = 0, binding = 0) uniform buf0 {
|
|
# vec2 injectionSwitch;
|
|
# };
|
|
#
|
|
# layout(location = 0) out vec4 _GLF_color;
|
|
#
|
|
# int g = 0;
|
|
#
|
|
# void main()
|
|
# {
|
|
# while(g < int(injectionSwitch.x + 2.0)) {
|
|
# g++;
|
|
# }
|
|
#
|
|
# // g is 2.
|
|
# int a = g;
|
|
#
|
|
# // Always false.
|
|
# while(g < int(injectionSwitch.y)) {
|
|
# g++;
|
|
# }
|
|
#
|
|
# a = a;
|
|
#
|
|
# // Always true.
|
|
# if(a == 2)
|
|
# _GLF_color = vec4(1, 0, 0, 1);
|
|
# else
|
|
# _GLF_color = vec4(0);
|
|
# }
|
|
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
|
|
; SPIR-V
|
|
; Version: 1.0
|
|
; Generator: Khronos Glslang Reference Front End; 8
|
|
; Bound: 64
|
|
; Schema: 0
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main" %58
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
OpName %4 "main"
|
|
OpName %8 "g"
|
|
OpName %18 "buf0"
|
|
OpMemberName %18 0 "injectionSwitch"
|
|
OpName %20 ""
|
|
OpName %35 "a"
|
|
OpName %58 "_GLF_color"
|
|
OpDecorate %8 RelaxedPrecision
|
|
OpDecorate %15 RelaxedPrecision
|
|
OpMemberDecorate %18 0 Offset 0
|
|
OpDecorate %18 Block
|
|
OpDecorate %20 DescriptorSet 0
|
|
OpDecorate %20 Binding 0
|
|
OpDecorate %31 RelaxedPrecision
|
|
OpDecorate %33 RelaxedPrecision
|
|
OpDecorate %35 RelaxedPrecision
|
|
OpDecorate %36 RelaxedPrecision
|
|
OpDecorate %42 RelaxedPrecision
|
|
OpDecorate %48 RelaxedPrecision
|
|
OpDecorate %49 RelaxedPrecision
|
|
OpDecorate %50 RelaxedPrecision
|
|
OpDecorate %51 RelaxedPrecision
|
|
OpDecorate %58 Location 0
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeInt 32 1
|
|
%7 = OpTypePointer Private %6
|
|
%8 = OpVariable %7 Private
|
|
%9 = OpConstant %6 0
|
|
%16 = OpTypeFloat 32
|
|
%17 = OpTypeVector %16 2
|
|
%18 = OpTypeStruct %17
|
|
%19 = OpTypePointer Uniform %18
|
|
%20 = OpVariable %19 Uniform
|
|
%21 = OpTypeInt 32 0
|
|
%22 = OpConstant %21 0
|
|
%23 = OpTypePointer Uniform %16
|
|
%26 = OpConstant %16 2
|
|
%29 = OpTypeBool
|
|
%32 = OpConstant %6 1
|
|
%34 = OpTypePointer Function %6
|
|
%43 = OpConstant %21 1
|
|
%52 = OpConstant %6 2
|
|
%56 = OpTypeVector %16 4
|
|
%57 = OpTypePointer Output %56
|
|
%58 = OpVariable %57 Output
|
|
%59 = OpConstant %16 1
|
|
%60 = OpConstant %16 0
|
|
%61 = OpConstantComposite %56 %59 %60 %60 %59
|
|
%63 = OpConstantComposite %56 %60 %60 %60 %60
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%35 = OpVariable %34 Function
|
|
OpStore %8 %9
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpLoopMerge %12 %13 None
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
%15 = OpLoad %6 %8
|
|
%24 = OpAccessChain %23 %20 %9 %22
|
|
%25 = OpLoad %16 %24
|
|
%27 = OpFAdd %16 %25 %26
|
|
%28 = OpConvertFToS %6 %27
|
|
%30 = OpSLessThan %29 %15 %28
|
|
OpBranchConditional %30 %11 %12
|
|
%11 = OpLabel
|
|
%31 = OpLoad %6 %8
|
|
%33 = OpIAdd %6 %31 %32
|
|
OpStore %8 %33
|
|
OpBranch %13
|
|
%13 = OpLabel
|
|
OpBranch %10
|
|
%12 = OpLabel
|
|
%36 = OpLoad %6 %8
|
|
OpStore %35 %36
|
|
OpBranch %37
|
|
%37 = OpLabel
|
|
OpLoopMerge %39 %40 None
|
|
OpBranch %41
|
|
%41 = OpLabel
|
|
%42 = OpLoad %6 %8
|
|
%44 = OpAccessChain %23 %20 %9 %43
|
|
%45 = OpLoad %16 %44
|
|
%46 = OpConvertFToS %6 %45
|
|
%47 = OpSLessThan %29 %42 %46
|
|
OpBranchConditional %47 %38 %39
|
|
%38 = OpLabel
|
|
%48 = OpLoad %6 %8
|
|
%49 = OpIAdd %6 %48 %32
|
|
OpStore %8 %49
|
|
OpBranch %40
|
|
%40 = OpLabel
|
|
OpBranch %37
|
|
%39 = OpLabel
|
|
%50 = OpLoad %6 %35
|
|
OpStore %35 %50
|
|
%51 = OpLoad %6 %35
|
|
%53 = OpIEqual %29 %51 %52
|
|
OpSelectionMerge %55 None
|
|
OpBranchConditional %53 %54 %62
|
|
%54 = OpLabel
|
|
OpStore %58 %61
|
|
OpBranch %55
|
|
%62 = OpLabel
|
|
OpStore %58 %63
|
|
OpBranch %55
|
|
%55 = OpLabel
|
|
OpReturn
|
|
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
|