xref: /third_party/vk-gl-cts/external/vulkancts/data/vulkan/amber/graphicsfuzz/cov-write-past-matrix-elements-unused.amber

#!amber

# Copyright 2021 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 NIR code paths

# The test passes because the shader always writes red.

# Optimized using spirv-opt with the following arguments:
# '--reduce-load-size'
# '--if-conversion'
# '--if-conversion'
# '--combine-access-chains'
# '--eliminate-dead-branches'
# '--merge-return'
# '--eliminate-dead-branches'
# '--merge-blocks'
# '--if-conversion'
# '--eliminate-local-single-store'
# '--redundancy-elimination'
# '--private-to-local'
# '--combine-access-chains'
# '--ccp'
# '--eliminate-local-multi-store'
# '--if-conversion'
# '--convert-local-access-chains'
# '--combine-access-chains'
# '--reduce-load-size'
# '--ccp'
# '--eliminate-dead-inserts'
# '--simplify-instructions'
# '--eliminate-dead-code-aggressive'
# 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_0 _GLF_uniform_int_values[0]
# #define _int_1 _GLF_uniform_int_values[1]
# #define _int_2 _GLF_uniform_int_values[2]
# #define _float_1_0 _GLF_uniform_float_values[0]
# #define _float_0_0 _GLF_uniform_float_values[1]
#
# precision highp int;
# precision highp float;
#
# // Contents of _GLF_uniform_int_values: [0, 1, 2]
# layout(set = 0, binding = 0) uniform buf0
# {
#     int _GLF_uniform_int_values[3];
# };
# // Contents of _GLF_uniform_float_values: [1.0, 0.0]
# layout(set = 0, binding = 1) uniform buf1
# {
#     float _GLF_uniform_float_values[2];
# };
#
# layout(location = 0) out vec4 _GLF_color;
#
# void main()
# {
#     mat3x2 m32 = mat3x2(_float_1_0);
#     int a = 3;
#
#     // Always false.
#     if (_int_0 == 1)
#     {
#         // Indexing past the matrix elements, but this
#         // code is never executed and the values are not
#         // used for the final results.
#         m32[a][_int_0] = _float_1_0;
#     }
#
#     float sums[3] = float[3](_float_1_0, _float_1_0, _float_1_0);
#
#     for(int c = _int_0; c < _int_2; c ++)
#     {
#         // This value is still unused later.
#         sums[_int_2] += m32[c][_int_0];
#     }
#
#     // This only depends on the initialized constant values.
#     _GLF_color = vec4(sums[_int_0], _float_0_0, _float_0_0, sums[_int_1]);
# }
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 10
; Bound: 105
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main" %89
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 320
               OpName %4 "main"
               OpName %10 "m32"
               OpName %14 "buf1"
               OpMemberName %14 0 "_GLF_uniform_float_values"
               OpName %16 ""
               OpName %33 "buf0"
               OpMemberName %33 0 "_GLF_uniform_int_values"
               OpName %35 ""
               OpName %53 "sums"
               OpName %89 "_GLF_color"
               OpDecorate %13 ArrayStride 16
               OpMemberDecorate %14 0 Offset 0
               OpDecorate %14 Block
               OpDecorate %16 DescriptorSet 0
               OpDecorate %16 Binding 1
               OpDecorate %32 ArrayStride 16
               OpMemberDecorate %33 0 Offset 0
               OpDecorate %33 Block
               OpDecorate %35 DescriptorSet 0
               OpDecorate %35 Binding 0
               OpDecorate %89 Location 0
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeFloat 32
          %7 = OpTypeVector %6 2
          %8 = OpTypeMatrix %7 3
          %9 = OpTypePointer Function %8
         %11 = OpTypeInt 32 0
         %12 = OpConstant %11 2
         %13 = OpTypeArray %6 %12
         %14 = OpTypeStruct %13
         %15 = OpTypePointer Uniform %14
         %16 = OpVariable %15 Uniform
         %17 = OpTypeInt 32 1
         %18 = OpConstant %17 0
         %19 = OpTypePointer Uniform %6
         %23 = OpConstant %6 0
         %30 = OpConstant %17 3
         %31 = OpConstant %11 3
         %32 = OpTypeArray %17 %31
         %33 = OpTypeStruct %32
         %34 = OpTypePointer Uniform %33
         %35 = OpVariable %34 Uniform
         %36 = OpTypePointer Uniform %17
         %39 = OpConstant %17 1
         %40 = OpTypeBool
         %49 = OpTypePointer Function %6
         %51 = OpTypeArray %6 %31
         %52 = OpTypePointer Function %51
         %70 = OpConstant %17 2
         %87 = OpTypeVector %6 4
         %88 = OpTypePointer Output %87
         %89 = OpVariable %88 Output
        %103 = OpConstantComposite %7 %23 %23
          %4 = OpFunction %2 None %3
          %5 = OpLabel
         %10 = OpVariable %9 Function
         %53 = OpVariable %52 Function
         %20 = OpAccessChain %19 %16 %18 %18
         %21 = OpLoad %6 %20
         %24 = OpCompositeConstruct %7 %21 %23
         %25 = OpCompositeConstruct %7 %23 %21
         %27 = OpCompositeConstruct %8 %24 %25 %103
               OpStore %10 %27
         %37 = OpAccessChain %36 %35 %18 %18
         %38 = OpLoad %17 %37
         %41 = OpIEqual %40 %38 %39
               OpSelectionMerge %43 None
               OpBranchConditional %41 %42 %43
         %42 = OpLabel
         %50 = OpAccessChain %49 %10 %30 %38
               OpStore %50 %21
               OpBranch %43
         %43 = OpLabel
         %60 = OpCompositeConstruct %51 %21 %21 %21
               OpStore %53 %60
               OpBranch %64
         %64 = OpLabel
        %104 = OpPhi %17 %38 %43 %86 %65
         %71 = OpAccessChain %36 %35 %18 %70
         %72 = OpLoad %17 %71
         %73 = OpSLessThan %40 %104 %72
               OpLoopMerge %66 %65 None
               OpBranchConditional %73 %65 %66
         %65 = OpLabel
         %79 = OpAccessChain %49 %10 %104 %38
         %80 = OpLoad %6 %79
         %81 = OpAccessChain %49 %53 %72
         %82 = OpLoad %6 %81
         %83 = OpFAdd %6 %82 %80
               OpStore %81 %83
         %86 = OpIAdd %17 %104 %39
               OpBranch %64
         %66 = OpLabel
         %92 = OpAccessChain %49 %53 %38
         %93 = OpLoad %6 %92
         %94 = OpAccessChain %19 %16 %18 %39
         %95 = OpLoad %6 %94
         %98 = OpAccessChain %36 %35 %18 %39
         %99 = OpLoad %17 %98
        %100 = OpAccessChain %49 %53 %99
        %101 = OpLoad %6 %100
        %102 = OpCompositeConstruct %87 %93 %95 %95 %101
               OpStore %89 %102
               OpReturn
               OpFunctionEnd
END

# uniforms for variant

# _GLF_uniform_float_values
BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA
 1.0 0.0
END
# _GLF_uniform_int_values
BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
 0 1 2
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
  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 256 256

EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255