#!amber

# Copyright 2020 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: Covers specific instruction simplify and combine compare code paths

# The test passes because the shader always writes red.

SHADER vertex variant_vertex_shader PASSTHROUGH

# variant_fragment_shader is derived from the following GLSL:
# #version 310 es
# #define _int_0 _GLF_uniform_int_values[0]
# #define _int_10 _GLF_uniform_int_values[1]
# #define _float_1_0 _GLF_uniform_float_values[0]
# #define _float_0_25 _GLF_uniform_float_values[1]
#
# precision highp float;
# precision highp int;
#
# // Contents of _GLF_uniform_float_values: [1.0, 0.25]
# layout(set = 0, binding = 0) uniform buf0
# {
#     float _GLF_uniform_float_values[2];
# };
#
# // Contents of _GLF_uniform_int_values: [0, 10]
# layout(set = 0, binding = 1) uniform buf1
# {
#     int _GLF_uniform_int_values[2];
# };
#
# layout(location = 0) out vec4 _GLF_color;
#
# void main()
# {
#     _GLF_color = vec4(_int_0);
#     for (int i = _int_0; i < _int_10; i++)
#     {
#         // True when i = 0.
#         if (!(_float_0_25 <= float(i)))
#         {
#             _GLF_color += vec4(_float_1_0, i, i, _float_1_0);
#         }
#     }
# }
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 8
; Bound: 64
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main" %9
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 310
               OpName %4 "main"
               OpName %9 "_GLF_color"
               OpName %14 "buf1"
               OpMemberName %14 0 "_GLF_uniform_int_values"
               OpName %16 ""
               OpName %24 "i"
               OpName %39 "buf0"
               OpMemberName %39 0 "_GLF_uniform_float_values"
               OpName %41 ""
               OpDecorate %9 Location 0
               OpDecorate %13 ArrayStride 16
               OpMemberDecorate %14 0 Offset 0
               OpDecorate %14 Block
               OpDecorate %16 DescriptorSet 0
               OpDecorate %16 Binding 1
               OpDecorate %38 ArrayStride 16
               OpMemberDecorate %39 0 Offset 0
               OpDecorate %39 Block
               OpDecorate %41 DescriptorSet 0
               OpDecorate %41 Binding 0
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeFloat 32
          %7 = OpTypeVector %6 4
          %8 = OpTypePointer Output %7
          %9 = OpVariable %8 Output
         %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
         %23 = OpTypePointer Function %10
         %33 = OpConstant %10 1
         %36 = OpTypeBool
         %38 = OpTypeArray %6 %12
         %39 = OpTypeStruct %38
         %40 = OpTypePointer Uniform %39
         %41 = OpVariable %40 Uniform
         %42 = OpTypePointer Uniform %6
          %4 = OpFunction %2 None %3
          %5 = OpLabel
         %24 = OpVariable %23 Function
         %19 = OpAccessChain %18 %16 %17 %17
         %20 = OpLoad %10 %19
         %21 = OpConvertSToF %6 %20
         %22 = OpCompositeConstruct %7 %21 %21 %21 %21
               OpStore %9 %22
         %25 = OpAccessChain %18 %16 %17 %17
         %26 = OpLoad %10 %25
               OpStore %24 %26
               OpBranch %27
         %27 = OpLabel
               OpLoopMerge %29 %30 None
               OpBranch %31
         %31 = OpLabel
         %32 = OpLoad %10 %24
         %34 = OpAccessChain %18 %16 %17 %33
         %35 = OpLoad %10 %34
         %37 = OpSLessThan %36 %32 %35
               OpBranchConditional %37 %28 %29
         %28 = OpLabel
         %43 = OpAccessChain %42 %41 %17 %33
         %44 = OpLoad %6 %43
         %45 = OpLoad %10 %24
         %46 = OpConvertSToF %6 %45
         %47 = OpFOrdLessThanEqual %36 %44 %46
         %48 = OpLogicalNot %36 %47
               OpSelectionMerge %50 None
               OpBranchConditional %48 %49 %50
         %49 = OpLabel
         %51 = OpAccessChain %42 %41 %17 %17
         %52 = OpLoad %6 %51
         %53 = OpLoad %10 %24
         %54 = OpConvertSToF %6 %53
         %55 = OpLoad %10 %24
         %56 = OpConvertSToF %6 %55
         %57 = OpAccessChain %42 %41 %17 %17
         %58 = OpLoad %6 %57
         %59 = OpCompositeConstruct %7 %52 %54 %56 %58
         %60 = OpLoad %7 %9
         %61 = OpFAdd %7 %60 %59
               OpStore %9 %61
               OpBranch %50
         %50 = OpLabel
               OpBranch %30
         %30 = OpLabel
         %62 = OpLoad %10 %24
         %63 = OpIAdd %10 %62 %33
               OpStore %24 %63
               OpBranch %27
         %29 = OpLabel
               OpReturn
               OpFunctionEnd
END

# uniforms for variant

# _GLF_uniform_int_values
BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
 0 10
END
# _GLF_uniform_float_values
BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA
 1.0 0.25
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_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 256 256

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