190 lines
5.8 KiB
Plaintext
190 lines
5.8 KiB
Plaintext
#!amber
|
|
|
|
# Copyright 2022 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 the GraphicsFuzz project.
|
|
|
|
# Short description: A fragment shader that covers specific LLVM code paths
|
|
|
|
# The test passes because the shader always writes red.
|
|
|
|
# Optimized using spirv-opt with the following arguments:
|
|
# '--eliminate-local-single-store'
|
|
# '--convert-local-access-chains'
|
|
# '--if-conversion'
|
|
# '--eliminate-local-single-block'
|
|
# '--simplify-instructions'
|
|
# '--inline-entry-points-exhaustive'
|
|
# '--private-to-local'
|
|
# '--convert-local-access-chains'
|
|
# '--eliminate-dead-branches'
|
|
# '--merge-return'
|
|
# '--combine-access-chains'
|
|
# '--reduce-load-size'
|
|
# '--reduce-load-size'
|
|
# '--combine-access-chains'
|
|
# '--vector-dce'
|
|
# '--eliminate-dead-branches'
|
|
# '--redundancy-elimination'
|
|
# '--inline-entry-points-exhaustive'
|
|
# '--eliminate-dead-branches'
|
|
# '--merge-blocks'
|
|
# '--eliminate-dead-branches'
|
|
# '--eliminate-local-single-block'
|
|
# '--inline-entry-points-exhaustive'
|
|
# '--if-conversion'
|
|
# spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af
|
|
|
|
|
|
|
|
SHADER vertex variant_vertex_shader PASSTHROUGH
|
|
|
|
# variant_fragment_shader is derived from the following GLSL:
|
|
# #version 320 es
|
|
# #define _int_3 _GLF_uniform_int_values[0]
|
|
# #define _int_1 _GLF_uniform_int_values[1]
|
|
# #define _int_0 _GLF_uniform_int_values[2]
|
|
#
|
|
# precision highp float;
|
|
# precision highp int;
|
|
#
|
|
# // Contents of _GLF_uniform_int_values: [3, 1, 0]
|
|
# layout(set = 0, binding = 0) uniform buf0 {
|
|
# int _GLF_uniform_int_values[3];
|
|
# };
|
|
# layout(location = 0) out vec4 _GLF_color;
|
|
#
|
|
# void main()
|
|
# {
|
|
# // f = (0, 1) * max((1, 1), (2, 3)) = (0, 1) * (2, 3) = 0 * 2 + 1 * 3 = 3
|
|
# float f = dot(vec2(0, 1), max(vec2(_int_1, 1), vec2(2, 3)));
|
|
#
|
|
# // Always true.
|
|
# if(int(f) == _int_3)
|
|
# {
|
|
# _GLF_color = vec4(_int_1, _int_0, _int_0, _int_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; 10
|
|
; Bound: 60
|
|
; Schema: 0
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main" %42
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 320
|
|
OpName %4 "main"
|
|
OpName %8 "f"
|
|
OpName %17 "buf0"
|
|
OpMemberName %17 0 "_GLF_uniform_int_values"
|
|
OpName %19 ""
|
|
OpName %42 "_GLF_color"
|
|
OpDecorate %16 ArrayStride 16
|
|
OpMemberDecorate %17 0 Offset 0
|
|
OpDecorate %17 Block
|
|
OpDecorate %19 DescriptorSet 0
|
|
OpDecorate %19 Binding 0
|
|
OpDecorate %42 Location 0
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeFloat 32
|
|
%7 = OpTypePointer Function %6
|
|
%9 = OpTypeVector %6 2
|
|
%10 = OpConstant %6 0
|
|
%11 = OpConstant %6 1
|
|
%12 = OpConstantComposite %9 %10 %11
|
|
%13 = OpTypeInt 32 1
|
|
%14 = OpTypeInt 32 0
|
|
%15 = OpConstant %14 3
|
|
%16 = OpTypeArray %13 %15
|
|
%17 = OpTypeStruct %16
|
|
%18 = OpTypePointer Uniform %17
|
|
%19 = OpVariable %18 Uniform
|
|
%20 = OpConstant %13 0
|
|
%21 = OpConstant %13 1
|
|
%22 = OpTypePointer Uniform %13
|
|
%27 = OpConstant %6 2
|
|
%28 = OpConstant %6 3
|
|
%29 = OpConstantComposite %9 %27 %28
|
|
%36 = OpTypeBool
|
|
%40 = OpTypeVector %6 4
|
|
%41 = OpTypePointer Output %40
|
|
%42 = OpVariable %41 Output
|
|
%46 = OpConstant %13 2
|
|
%58 = OpConstantComposite %40 %10 %10 %10 %10
|
|
%59 = OpUndef %6
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%8 = OpVariable %7 Function
|
|
%23 = OpAccessChain %22 %19 %20 %21
|
|
%24 = OpLoad %13 %23
|
|
%26 = OpCompositeConstruct %9 %59 %11
|
|
%30 = OpExtInst %9 %1 FMax %26 %29
|
|
%31 = OpCompositeExtract %6 %30 1
|
|
OpStore %8 %31
|
|
%33 = OpConvertFToS %13 %31
|
|
%34 = OpAccessChain %22 %19 %20 %20
|
|
%35 = OpLoad %13 %34
|
|
%37 = OpIEqual %36 %33 %35
|
|
OpSelectionMerge %39 None
|
|
OpBranchConditional %37 %38 %57
|
|
%38 = OpLabel
|
|
%45 = OpConvertSToF %6 %24
|
|
%47 = OpAccessChain %22 %19 %20 %46
|
|
%48 = OpLoad %13 %47
|
|
%49 = OpConvertSToF %6 %48
|
|
%56 = OpCompositeConstruct %40 %45 %49 %49 %45
|
|
OpStore %42 %56
|
|
OpBranch %39
|
|
%57 = OpLabel
|
|
OpStore %42 %58
|
|
OpBranch %39
|
|
%39 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
END
|
|
|
|
# uniforms for variant
|
|
|
|
# _GLF_uniform_int_values
|
|
BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
|
|
3 1 0
|
|
END
|
|
|
|
BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
|
|
|
|
PIPELINE graphics variant_pipeline
|
|
ATTACH variant_vertex_shader
|
|
ATTACH variant_fragment_shader
|
|
FRAMEBUFFER_SIZE 32 32
|
|
BIND BUFFER variant_framebuffer AS color LOCATION 0
|
|
BIND BUFFER variant__GLF_uniform_int_values 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 32 32
|
|
|
|
EXPECT variant_framebuffer IDX 0 0 SIZE 32 32 EQ_RGBA 255 0 0 255
|