xref: /third_party/vk-gl-cts/external/vulkancts/data/vulkan/amber/graphicsfuzz/cov-min-vec2-transpose-mat2-identity.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:
# '-Os'
# 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_0_0 _GLF_uniform_float_values[0]
#
# precision highp float;
# precision highp int;
#
# // Contents of _GLF_uniform_int_values: [1, 0]
# layout(set = 0, binding = 0) uniform buf0
# {
#     int _GLF_uniform_int_values[2];
# };
#
# // Contents of _GLF_uniform_float_values: 0.0
# layout(set = 0, binding = 1) uniform buf1
# {
#     float _GLF_uniform_float_values[1];
# };
#
# layout(location = 0) out vec4 _GLF_color;
#
# void main()
# {
#     // Always true. The line below simplifies to
#     // min(vec2(1, 1), vec2(transpose(mat2(1)))).y = min(vec2(1, 1), vec2(mat2(1))).y
#     // = min(vec2(1, 1), vec2(1, 0)).y = vec2(1, 0).y = 0.
#     if(min(vec2(1), vec2(transpose(mat2(_int_1)))).y == _float_0_0)
#     {
#         _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: 68
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main" %47
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 320
               OpName %4 "main"
               OpName %14 "buf0"
               OpMemberName %14 0 "_GLF_uniform_int_values"
               OpName %16 ""
               OpName %35 "buf1"
               OpMemberName %35 0 "_GLF_uniform_float_values"
               OpName %37 ""
               OpName %47 "_GLF_color"
               OpDecorate %13 ArrayStride 16
               OpMemberDecorate %14 0 Offset 0
               OpDecorate %14 Block
               OpDecorate %16 DescriptorSet 0
               OpDecorate %16 Binding 0
               OpDecorate %34 ArrayStride 16
               OpMemberDecorate %35 0 Offset 0
               OpDecorate %35 Block
               OpDecorate %37 DescriptorSet 0
               OpDecorate %37 Binding 1
               OpDecorate %47 Location 0
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeFloat 32
          %7 = OpTypeVector %6 2
          %8 = OpConstant %6 1
          %9 = OpConstantComposite %7 %8 %8
         %10 = OpTypeInt 32 1
         %11 = OpTypeInt 32 0
         %12 = OpConstant %11 2
         %13 = OpTypeArray %10 %12
         %14 = OpTypeStruct %13
         %15 = OpTypePointer Uniform %14
         %16 = OpVariable %15 Uniform
         %17 = OpConstant %10 0
         %18 = OpTypePointer Uniform %10
         %22 = OpTypeMatrix %7 2
         %23 = OpConstant %6 0
         %32 = OpConstant %11 1
         %34 = OpTypeArray %6 %32
         %35 = OpTypeStruct %34
         %36 = OpTypePointer Uniform %35
         %37 = OpVariable %36 Uniform
         %38 = OpTypePointer Uniform %6
         %41 = OpTypeBool
         %45 = OpTypeVector %6 4
         %46 = OpTypePointer Output %45
         %47 = OpVariable %46 Output
         %51 = OpConstant %10 1
         %67 = OpUndef %6
          %4 = OpFunction %2 None %3
          %5 = OpLabel
         %19 = OpAccessChain %18 %16 %17 %17
         %20 = OpLoad %10 %19
         %21 = OpConvertSToF %6 %20
         %24 = OpCompositeConstruct %7 %21 %23
         %25 = OpCompositeConstruct %7 %23 %21
         %26 = OpCompositeConstruct %22 %24 %25
         %27 = OpTranspose %22 %26
         %29 = OpCompositeExtract %6 %27 0 1
         %30 = OpCompositeConstruct %7 %67 %29
         %31 = OpExtInst %7 %1 FMin %9 %30
         %33 = OpCompositeExtract %6 %31 1
         %39 = OpAccessChain %38 %37 %17 %17
         %40 = OpLoad %6 %39
         %42 = OpFOrdEqual %41 %33 %40
               OpSelectionMerge %44 None
               OpBranchConditional %42 %43 %62
         %43 = OpLabel
         %52 = OpAccessChain %18 %16 %17 %51
         %53 = OpLoad %10 %52
         %54 = OpConvertSToF %6 %53
         %61 = OpCompositeConstruct %45 %21 %54 %54 %21
               OpStore %47 %61
               OpBranch %44
         %62 = OpLabel
         %63 = OpAccessChain %18 %16 %17 %51
         %64 = OpLoad %10 %63
         %65 = OpConvertSToF %6 %64
         %66 = OpCompositeConstruct %45 %65 %65 %65 %65
               OpStore %47 %66
               OpBranch %44
         %44 = OpLabel
               OpReturn
               OpFunctionEnd
END

# uniforms for variant

# _GLF_uniform_float_values
BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA
 0.0
END
# _GLF_uniform_int_values
BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
 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_float_values AS uniform DESCRIPTOR_SET 0 BINDING 1
  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