xref: /third_party/vk-gl-cts/external/vulkancts/data/vulkan/amber/graphicsfuzz/cov-loop-condition-increment-integer-fallback-global-counter.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:
# '-O'
# 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]
#
# precision highp float;
# precision highp int;
#
# // Contents of _GLF_uniform_float_values: 1.0
# layout(set = 0, binding = 0) uniform buf0
# {
#     float _GLF_uniform_float_values[1];
# };
#
# // Contents of _GLF_uniform_int_values: [1, 0]
# layout(set = 0, binding = 1) uniform buf1
# {
#     int _GLF_uniform_int_values[2];
# };
#
# const int _GLF_global_loop_bound = 5;
# int _GLF_global_loop_count = 0;
#
# layout(location = 0) out vec4 _GLF_color;
#
# void main()
# {
#     int i = 1;
#
#     // Loops until the global loop bound is reached.
#     do
#     {
#         _GLF_global_loop_count++;
#
#         // Always true.
#         if(gl_FragCoord.y > 0.0)
#         {
#             float f = _float_1_0;
#             modf(_float_1_0, f);
#             i++;
#         }
#
#         // During the first iteration i becomes 3, making the i != 2 below always true.
#         i++;
#     }
#     while(i != 2 && _GLF_global_loop_count < _GLF_global_loop_bound);
#
#     // Always true.
#     if(i == 11)
#     {
#         _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: 90
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main" %22 %62
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 320
               OpName %4 "main"
               OpName %22 "gl_FragCoord"
               OpName %34 "f"
               OpName %36 "buf0"
               OpMemberName %36 0 "_GLF_uniform_float_values"
               OpName %38 ""
               OpName %62 "_GLF_color"
               OpName %65 "buf1"
               OpMemberName %65 0 "_GLF_uniform_int_values"
               OpName %67 ""
               OpDecorate %22 BuiltIn FragCoord
               OpDecorate %35 ArrayStride 16
               OpMemberDecorate %36 0 Offset 0
               OpDecorate %36 Block
               OpDecorate %38 DescriptorSet 0
               OpDecorate %38 Binding 0
               OpDecorate %62 Location 0
               OpDecorate %64 ArrayStride 16
               OpMemberDecorate %65 0 Offset 0
               OpDecorate %65 Block
               OpDecorate %67 DescriptorSet 0
               OpDecorate %67 Binding 1
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeInt 32 1
          %9 = OpConstant %6 0
         %12 = OpConstant %6 1
         %19 = OpTypeFloat 32
         %20 = OpTypeVector %19 4
         %21 = OpTypePointer Input %20
         %22 = OpVariable %21 Input
         %23 = OpTypeInt 32 0
         %24 = OpConstant %23 1
         %25 = OpTypePointer Input %19
         %28 = OpConstant %19 0
         %29 = OpTypeBool
         %33 = OpTypePointer Function %19
         %35 = OpTypeArray %19 %24
         %36 = OpTypeStruct %35
         %37 = OpTypePointer Uniform %36
         %38 = OpVariable %37 Uniform
         %39 = OpTypePointer Uniform %19
         %50 = OpConstant %6 2
         %53 = OpConstant %6 5
         %57 = OpConstant %6 11
         %61 = OpTypePointer Output %20
         %62 = OpVariable %61 Output
         %63 = OpConstant %23 2
         %64 = OpTypeArray %6 %63
         %65 = OpTypeStruct %64
         %66 = OpTypePointer Uniform %65
         %67 = OpVariable %66 Uniform
         %68 = OpTypePointer Uniform %6
          %4 = OpFunction %2 None %3
          %5 = OpLabel
         %34 = OpVariable %33 Function
               OpBranch %13
         %13 = OpLabel
         %88 = OpPhi %6 %12 %5 %48 %16
         %87 = OpPhi %6 %9 %5 %18 %16
               OpLoopMerge %15 %16 None
               OpBranch %14
         %14 = OpLabel
         %18 = OpIAdd %6 %87 %12
         %26 = OpAccessChain %25 %22 %24
         %27 = OpLoad %19 %26
         %30 = OpFOrdGreaterThan %29 %27 %28
               OpSelectionMerge %32 None
               OpBranchConditional %30 %31 %32
         %31 = OpLabel
         %42 = OpAccessChain %39 %38 %9 %9
         %43 = OpLoad %19 %42
         %44 = OpExtInst %19 %1 Modf %43 %34
         %46 = OpIAdd %6 %88 %12
               OpBranch %32
         %32 = OpLabel
         %89 = OpPhi %6 %88 %14 %46 %31
         %48 = OpIAdd %6 %89 %12
               OpBranch %16
         %16 = OpLabel
         %51 = OpINotEqual %29 %48 %50
         %54 = OpSLessThan %29 %18 %53
         %55 = OpLogicalAnd %29 %51 %54
               OpBranchConditional %55 %13 %15
         %15 = OpLabel
         %58 = OpIEqual %29 %48 %57
               OpSelectionMerge %60 None
               OpBranchConditional %58 %59 %82
         %59 = OpLabel
         %69 = OpAccessChain %68 %67 %9 %9
         %70 = OpLoad %6 %69
         %71 = OpConvertSToF %19 %70
         %72 = OpAccessChain %68 %67 %9 %12
         %73 = OpLoad %6 %72
         %74 = OpConvertSToF %19 %73
         %81 = OpCompositeConstruct %20 %71 %74 %74 %71
               OpStore %62 %81
               OpBranch %60
         %82 = OpLabel
         %83 = OpAccessChain %68 %67 %9 %12
         %84 = OpLoad %6 %83
         %85 = OpConvertSToF %19 %84
         %86 = OpCompositeConstruct %20 %85 %85 %85 %85
               OpStore %62 %86
               OpBranch %60
         %60 = 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
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