blob: b8d364e7a744bf7340001ddf8e51908592aa5035 [file] [log] [blame]
#!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 coverage-gap found by GraphicsFuzz.
# Short description: A fragment shader that covers a specific const folding rule 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(location = 0) out vec4 _GLF_color;
#
# void main()
# {
# // If condition is always false.
# if (
# clamp(
# vec4(3000.0, 1.0, 8.0, 4.0),
# vec4(2.0, 3.0, determinant(mat2(2.0, 0.0, 0.0, 2.0)), 5.0), // min = (2, 3, 4, 5)
# vec4(6.0) // max = (6, 6, 6, 6)
# ) != vec4(6, 3, 6, 5)
# )
# _GLF_color = vec4(0);
# else
# _GLF_color = vec4(1, 0, 0, 1);
# }
SHADER fragment variant_fragment_shader SPIRV-ASM
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 8
; Bound: 39
; Schema: 0
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %35
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpName %4 "main"
OpName %35 "_GLF_color"
OpDecorate %35 Location 0
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%7 = OpTypeVector %6 4
%8 = OpConstant %6 3000
%9 = OpConstant %6 1
%10 = OpConstant %6 8
%11 = OpConstant %6 4
%12 = OpConstantComposite %7 %8 %9 %10 %11
%13 = OpConstant %6 2
%14 = OpConstant %6 3
%15 = OpTypeVector %6 2
%16 = OpTypeMatrix %15 2
%17 = OpConstant %6 0
%18 = OpConstantComposite %15 %13 %17
%19 = OpConstantComposite %15 %17 %13
%20 = OpConstantComposite %16 %18 %19
%22 = OpConstant %6 5
%24 = OpConstant %6 6
%25 = OpConstantComposite %7 %24 %24 %24 %24
%27 = OpConstantComposite %7 %24 %14 %24 %22
%28 = OpTypeBool
%29 = OpTypeVector %28 4
%34 = OpTypePointer Output %7
%35 = OpVariable %34 Output
%36 = OpConstantComposite %7 %17 %17 %17 %17
%38 = OpConstantComposite %7 %9 %17 %17 %9
%4 = OpFunction %2 None %3
%5 = OpLabel
%21 = OpExtInst %6 %1 Determinant %20
%23 = OpCompositeConstruct %7 %13 %14 %21 %22
%26 = OpExtInst %7 %1 FClamp %12 %23 %25
%30 = OpFOrdNotEqual %29 %26 %27
%31 = OpAny %28 %30
OpSelectionMerge %33 None
OpBranchConditional %31 %32 %37
%32 = OpLabel
OpStore %35 %36
OpBranch %33
%37 = OpLabel
OpStore %35 %38
OpBranch %33
%33 = OpLabel
OpReturn
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