151 lines
4.3 KiB
Plaintext
151 lines
4.3 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 inlining optimization path.
|
|
|
|
# The test passes because shader always writes red.
|
|
|
|
# Optimized using spirv-opt with the following arguments:
|
|
# '--reduce-load-size'
|
|
# '--convert-local-access-chains'
|
|
# '--eliminate-local-single-store'
|
|
# '--simplify-instructions'
|
|
# '--combine-access-chains'
|
|
# '--eliminate-dead-branches'
|
|
# '--merge-blocks'
|
|
# '--convert-local-access-chains'
|
|
# '--convert-local-access-chains'
|
|
# spirv-opt commit hash: 9215c1b7df0029f27807e8c8d7ec80532ce90a87
|
|
|
|
|
|
|
|
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;
|
|
#
|
|
# vec4 func()
|
|
# {
|
|
# float x = 1.0;
|
|
#
|
|
# // Always false.
|
|
# if (gl_FragCoord.x < 0.0)
|
|
# x = 0.5;
|
|
#
|
|
# return vec4(x, 0, 0, 1);
|
|
# }
|
|
#
|
|
# void main()
|
|
# {
|
|
# _GLF_color = vec4(0);
|
|
#
|
|
# do
|
|
# {
|
|
# _GLF_color = func();
|
|
# }
|
|
# while (false);
|
|
# }
|
|
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
|
|
; SPIR-V
|
|
; Version: 1.0
|
|
; Generator: Khronos Glslang Reference Front End; 8
|
|
; Bound: 40
|
|
; Schema: 0
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main" %15 %32
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
OpName %4 "main"
|
|
OpName %9 "func("
|
|
OpName %12 "x"
|
|
OpName %15 "gl_FragCoord"
|
|
OpName %32 "_GLF_color"
|
|
OpDecorate %15 BuiltIn FragCoord
|
|
OpDecorate %32 Location 0
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeFloat 32
|
|
%7 = OpTypeVector %6 4
|
|
%8 = OpTypeFunction %7
|
|
%11 = OpTypePointer Function %6
|
|
%13 = OpConstant %6 1
|
|
%14 = OpTypePointer Input %7
|
|
%15 = OpVariable %14 Input
|
|
%16 = OpTypeInt 32 0
|
|
%17 = OpConstant %16 0
|
|
%18 = OpTypePointer Input %6
|
|
%21 = OpConstant %6 0
|
|
%22 = OpTypeBool
|
|
%26 = OpConstant %6 0.5
|
|
%31 = OpTypePointer Output %7
|
|
%32 = OpVariable %31 Output
|
|
%33 = OpConstantComposite %7 %21 %21 %21 %21
|
|
%39 = OpConstantFalse %22
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpStore %32 %33
|
|
OpBranch %34
|
|
%34 = OpLabel
|
|
%38 = OpFunctionCall %7 %9
|
|
OpStore %32 %38
|
|
OpLoopMerge %36 %34 None
|
|
OpBranchConditional %39 %34 %36
|
|
%36 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%9 = OpFunction %7 None %8
|
|
%10 = OpLabel
|
|
%12 = OpVariable %11 Function
|
|
OpStore %12 %13
|
|
%19 = OpAccessChain %18 %15 %17
|
|
%20 = OpLoad %6 %19
|
|
%23 = OpFOrdLessThan %22 %20 %21
|
|
OpSelectionMerge %25 None
|
|
OpBranchConditional %23 %24 %25
|
|
%24 = OpLabel
|
|
OpStore %12 %26
|
|
OpBranch %25
|
|
%25 = OpLabel
|
|
%27 = OpLoad %6 %12
|
|
%28 = OpCompositeConstruct %7 %27 %21 %21 %13
|
|
OpReturnValue %28
|
|
OpFunctionEnd
|
|
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
|
|
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
|