xref: /third_party/vk-gl-cts/external/vulkancts/data/vulkan/amber/graphicsfuzz/do-while-false-if.amber

#!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 bug found by the GraphicsFuzz project.

# Short description: A fragment shader with false if return in do while loop

# The test passes because the shader always writes color red.

# Optimized using spirv-opt with the following arguments:
# '--inline-entry-points-exhaustive'
# '--ccp'
# '--eliminate-local-single-block'
# '--eliminate-dead-inserts'
# '--eliminate-dead-inserts'
# '--combine-access-chains'
# '--eliminate-local-single-block'
# '--reduce-load-size'
# '--eliminate-local-single-store'
# '--eliminate-dead-branches'
# '--reduce-load-size'
# '--eliminate-dead-code-aggressive'
# '--eliminate-local-multi-store'
# '--redundancy-elimination'
# spirv-opt commit hash: e28436f2b8a2f0705a07de908178d2ea2682c6d3



SHADER vertex variant_vertex_shader PASSTHROUGH

# variant_fragment_shader is derived from the following GLSL:
# #version 320 es
#
# precision highp float;
# precision highp int;
#
#
# layout(set = 0, binding = 0) uniform buf0
# {
#     vec2 injectionSwitch;   //x == 0.0, y == 1.0
# };
#
# struct struct_base
# {
#     float count;
# };
#
# layout(location = 0) out vec4 _GLF_color;
#
# void main()
# {    // loop_limit == 100
#     int loop_limit = (injectionSwitch.y > 0.0 ? 100 : 1);
#     int loop_count = 0;
#
#     bool bool_a = true;
#
#     struct_base struct_a = struct_base(1.0);
#     do
#     {
#         loop_count++;
#         // Always false.
#         if (injectionSwitch.x > injectionSwitch.y)
#         {
#             return ;
#         }
#     }
#     // Always false.
#     while ((struct_a.count != injectionSwitch.y) && (loop_count < loop_limit));
#     bool_a = struct_a.count < 1.0;
#     // bool_a == false
#     if (bool_a == false)
#     {
#         _GLF_color = vec4(1.0, 0.0, 0.0, 1.0);
#     }
#     else
#     {
#         _GLF_color = vec4(1.0);
#     };
# }
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 10
; Bound: 75
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main" %70
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 320
               OpName %4 "main"
               OpName %11 "buf0"
               OpMemberName %11 0 "injectionSwitch"
               OpName %13 ""
               OpName %26 "loop_count"
               OpName %30 "struct_base"
               OpMemberName %30 0 "count"
               OpName %32 "struct_a"
               OpName %70 "_GLF_color"
               OpMemberDecorate %11 0 Offset 0
               OpDecorate %11 Block
               OpDecorate %13 DescriptorSet 0
               OpDecorate %13 Binding 0
               OpDecorate %70 Location 0
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeInt 32 1
          %7 = OpTypePointer Function %6
          %9 = OpTypeFloat 32
         %10 = OpTypeVector %9 2
         %11 = OpTypeStruct %10
         %12 = OpTypePointer Uniform %11
         %13 = OpVariable %12 Uniform
         %14 = OpConstant %6 0
         %15 = OpTypeInt 32 0
         %16 = OpConstant %15 1
         %17 = OpTypePointer Uniform %9
         %20 = OpConstant %9 0
         %21 = OpTypeBool
         %23 = OpConstant %6 100
         %24 = OpConstant %6 1
         %30 = OpTypeStruct %9
         %31 = OpTypePointer Function %30
         %33 = OpConstant %9 1
         %34 = OpConstantComposite %30 %33
         %41 = OpConstant %15 0
         %50 = OpTypePointer Function %9
         %64 = OpConstantFalse %21
         %68 = OpTypeVector %9 4
         %69 = OpTypePointer Output %68
         %70 = OpVariable %69 Output
         %71 = OpConstantComposite %68 %33 %20 %20 %33
         %73 = OpConstantComposite %68 %33 %33 %33 %33
          %4 = OpFunction %2 None %3
          %5 = OpLabel
         %26 = OpVariable %7 Function
         %32 = OpVariable %31 Function
         %18 = OpAccessChain %17 %13 %14 %16
         %19 = OpLoad %9 %18
         %22 = OpFOrdGreaterThan %21 %19 %20
         %25 = OpSelect %6 %22 %23 %24
               OpStore %26 %14
               OpStore %32 %34
               OpBranch %35
         %35 = OpLabel
         %74 = OpPhi %6 %14 %5 %40 %38
               OpLoopMerge %37 %38 None
               OpBranch %36
         %36 = OpLabel
         %40 = OpIAdd %6 %74 %24
               OpStore %26 %40
         %42 = OpAccessChain %17 %13 %14 %41
         %43 = OpLoad %9 %42
         %46 = OpFOrdGreaterThan %21 %43 %19
               OpSelectionMerge %48 None
               OpBranchConditional %46 %47 %48
         %47 = OpLabel
               OpReturn
         %48 = OpLabel
               OpBranch %38
         %38 = OpLabel
         %51 = OpAccessChain %50 %32 %14
         %52 = OpLoad %9 %51
         %55 = OpFUnordNotEqual %21 %52 %19
         %58 = OpSLessThan %21 %40 %25
         %59 = OpLogicalAnd %21 %55 %58
               OpBranchConditional %59 %35 %37
         %37 = OpLabel
         %61 = OpLoad %9 %51
         %62 = OpFOrdLessThan %21 %61 %33
         %65 = OpLogicalEqual %21 %62 %64
               OpSelectionMerge %67 None
               OpBranchConditional %65 %66 %72
         %66 = OpLabel
               OpStore %70 %71
               OpBranch %67
         %72 = OpLabel
               OpStore %70 %73
               OpBranch %67
         %67 = OpLabel
               OpReturn
               OpFunctionEnd
END

# uniforms for variant

# injectionSwitch
BUFFER variant_injectionSwitch DATA_TYPE vec2<float> STD140 DATA
 0.0 1.0
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_injectionSwitch 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