xref: /third_party/vk-gl-cts/external/vulkancts/data/vulkan/amber/graphicsfuzz/cov-function-max-all-ones-select-always-true.amber

#!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-dead-branches'
# '--inline-entry-points-exhaustive'
# '--reduce-load-size'
# '--eliminate-local-single-block'
# '--vector-dce'
# '--eliminate-dead-branches'
# '--simplify-instructions'
# '--inline-entry-points-exhaustive'
# '--if-conversion'
# '--redundancy-elimination'
# '--eliminate-local-single-block'
# '--vector-dce'
# '--eliminate-dead-branches'
# '--vector-dce'
# '--if-conversion'
# '--vector-dce'
# '--combine-access-chains'
# '--simplify-instructions'
# '--eliminate-dead-code-aggressive'
# '--inline-entry-points-exhaustive'
# '--eliminate-dead-inserts'
# '--eliminate-local-single-store'
# '--ccp'
# '--reduce-load-size'
# '--eliminate-dead-branches'
# '--merge-blocks'
# '--if-conversion'
# '--combine-access-chains'
# '--copy-propagate-arrays'
# '--eliminate-dead-branches'
# '--merge-return'
# '--inline-entry-points-exhaustive'
# 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_1 _GLF_uniform_int_values[0]
# #define _int_0 _GLF_uniform_int_values[1]
# #define _float_1_0 _GLF_uniform_float_values[0]
# #define _float_0_0 _GLF_uniform_float_values[1]
#
# precision highp float;
# precision highp int;
#
# // Contents of _GLF_uniform_float_values: [1.0, 0.0]
# layout(set = 0, binding = 0) uniform buf0
# {
#     float _GLF_uniform_float_values[2];
# };
#
# // Contents of _GLF_uniform_int_values: [1, 0]
# layout(set = 0, binding = 1) uniform buf1
# {
#     int _GLF_uniform_int_values[2];
# };
#
# layout(location = 0) out vec4 _GLF_color;
#
# vec3 func()
# {
#     int a = _int_1;
#     // b becomes one.
#     int b = int(max(ivec2(1, true ? a : _int_1), ivec2(1, true ? a : _int_1)));
#     // Returns vec3(1, 1, 1).
#     return vec3(max(_float_1_0, b == _int_1 ? _float_0_0 : _float_1_0));
# }
#
# void main()
# {
#     // Always true.
#     if(func() == vec3(_int_1))
#     {
#         _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1);
#     }
#     else
#     {
#         _GLF_color = vec4(_int_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: 144
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main" %86
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 320
               OpName %4 "main"
               OpName %17 "buf1"
               OpMemberName %17 0 "_GLF_uniform_int_values"
               OpName %19 ""
               OpName %50 "buf0"
               OpMemberName %50 0 "_GLF_uniform_float_values"
               OpName %52 ""
               OpName %86 "_GLF_color"
               OpDecorate %16 ArrayStride 16
               OpMemberDecorate %17 0 Offset 0
               OpDecorate %17 Block
               OpDecorate %19 DescriptorSet 0
               OpDecorate %19 Binding 1
               OpDecorate %49 ArrayStride 16
               OpMemberDecorate %50 0 Offset 0
               OpDecorate %50 Block
               OpDecorate %52 DescriptorSet 0
               OpDecorate %52 Binding 0
               OpDecorate %86 Location 0
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeFloat 32
          %7 = OpTypeVector %6 3
         %11 = OpTypeInt 32 1
         %14 = OpTypeInt 32 0
         %15 = OpConstant %14 2
         %16 = OpTypeArray %11 %15
         %17 = OpTypeStruct %16
         %18 = OpTypePointer Uniform %17
         %19 = OpVariable %18 Uniform
         %20 = OpConstant %11 0
         %21 = OpTypePointer Uniform %11
         %25 = OpConstant %11 1
         %26 = OpTypeBool
         %36 = OpTypeVector %11 2
         %49 = OpTypeArray %6 %15
         %50 = OpTypeStruct %49
         %51 = OpTypePointer Uniform %50
         %52 = OpVariable %51 Uniform
         %53 = OpTypePointer Uniform %6
         %60 = OpTypePointer Function %6
         %79 = OpTypeVector %26 3
         %84 = OpTypeVector %6 4
         %85 = OpTypePointer Output %84
         %86 = OpVariable %85 Output
        %143 = OpUndef %11
          %4 = OpFunction %2 None %3
          %5 = OpLabel
        %109 = OpVariable %60 Function
        %113 = OpAccessChain %21 %19 %20 %20
        %114 = OpLoad %11 %113
        %119 = OpCompositeConstruct %36 %25 %143
        %125 = OpExtInst %36 %1 SMax %119 %119
        %126 = OpCompositeExtract %11 %125 0
        %127 = OpAccessChain %53 %52 %20 %20
        %128 = OpLoad %6 %127
        %132 = OpIEqual %26 %126 %114
               OpSelectionMerge %139 None
               OpBranchConditional %132 %136 %133
        %133 = OpLabel
               OpStore %109 %128
               OpBranch %139
        %136 = OpLabel
        %137 = OpAccessChain %53 %52 %20 %25
        %138 = OpLoad %6 %137
               OpStore %109 %138
               OpBranch %139
        %139 = OpLabel
        %140 = OpLoad %6 %109
        %141 = OpExtInst %6 %1 FMax %128 %140
        %142 = OpCompositeConstruct %7 %141 %141 %141
         %77 = OpConvertSToF %6 %114
         %78 = OpCompositeConstruct %7 %77 %77 %77
         %80 = OpFOrdEqual %79 %142 %78
         %81 = OpAll %26 %80
               OpSelectionMerge %83 None
               OpBranchConditional %81 %82 %100
        %100 = OpLabel
        %101 = OpAccessChain %21 %19 %20 %25
        %102 = OpLoad %11 %101
        %103 = OpConvertSToF %6 %102
        %104 = OpCompositeConstruct %84 %103 %103 %103 %103
               OpStore %86 %104
               OpBranch %83
         %82 = OpLabel
         %90 = OpAccessChain %21 %19 %20 %25
         %91 = OpLoad %11 %90
         %92 = OpConvertSToF %6 %91
         %99 = OpCompositeConstruct %84 %77 %92 %92 %77
               OpStore %86 %99
               OpBranch %83
         %83 = OpLabel
               OpReturn
               OpFunctionEnd
END

# uniforms for variant

# _GLF_uniform_int_values
BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
 1 0
END
# _GLF_uniform_float_values
BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA
 1.0 0.0
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 1
  BIND BUFFER variant__GLF_uniform_float_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