#!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.

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]
#
# 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];
# };
#
# layout(location = 0) out vec4 _GLF_color;
#
# vec4 func()
# {
#     int a = _int_1;
#     min(a, a << 24323);
#     return vec4(_int_1, _int_0, _int_0, _int_1);
# }
#
# void main()
# {
#     _GLF_color = func();
# }
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 10
; Bound: 48
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main" %46
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 320
               OpName %4 "main"
               OpName %9 "func("
               OpName %13 "a"
               OpName %17 "buf0"
               OpMemberName %17 0 "_GLF_uniform_int_values"
               OpName %19 ""
               OpName %46 "_GLF_color"
               OpDecorate %16 ArrayStride 16
               OpMemberDecorate %17 0 Offset 0
               OpDecorate %17 Block
               OpDecorate %19 DescriptorSet 0
               OpDecorate %19 Binding 0
               OpDecorate %46 Location 0
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeFloat 32
          %7 = OpTypeVector %6 4
          %8 = OpTypeFunction %7
         %11 = OpTypeInt 32 1
         %12 = OpTypePointer Function %11
         %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
         %26 = OpConstant %11 24323
         %32 = OpConstant %11 1
         %45 = OpTypePointer Output %7
         %46 = OpVariable %45 Output
          %4 = OpFunction %2 None %3
          %5 = OpLabel
         %47 = OpFunctionCall %7 %9
               OpStore %46 %47
               OpReturn
               OpFunctionEnd
          %9 = OpFunction %7 None %8
         %10 = OpLabel
         %13 = OpVariable %12 Function
         %22 = OpAccessChain %21 %19 %20 %20
         %23 = OpLoad %11 %22
               OpStore %13 %23
         %24 = OpLoad %11 %13
         %25 = OpLoad %11 %13
         %27 = OpShiftLeftLogical %11 %25 %26
         %28 = OpExtInst %11 %1 SMin %24 %27
         %29 = OpAccessChain %21 %19 %20 %20
         %30 = OpLoad %11 %29
         %31 = OpConvertSToF %6 %30
         %33 = OpAccessChain %21 %19 %20 %32
         %34 = OpLoad %11 %33
         %35 = OpConvertSToF %6 %34
         %36 = OpAccessChain %21 %19 %20 %32
         %37 = OpLoad %11 %36
         %38 = OpConvertSToF %6 %37
         %39 = OpAccessChain %21 %19 %20 %20
         %40 = OpLoad %11 %39
         %41 = OpConvertSToF %6 %40
         %42 = OpCompositeConstruct %7 %31 %35 %38 %41
               OpReturnValue %42
               OpFunctionEnd
END

# uniforms for variant

# _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_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