external/vulkancts/data/vulkan/amber/spirv_assembly/instruction/float32/comparison/frexpstruct_1_comp.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 compute shader test for FrexpStruct.

# SHADER compute comp_shader GLSL
# #version 430
# precision highp float;
#
# const uint ndp = 1296 / 1;
# const uint half_ndp = ndp / 2;
#
# layout(set = 0, binding = 0) readonly buffer block0 {
#     uint in_values[half_ndp];
# };
#
# layout(set = 0, binding = 1) buffer block1 {
#     float frexp_out[ndp];
# };
#
# layout(set = 0, binding = 2) buffer block2 {
#     float frexpStruct_out[ndp];
# };
#
# struct frexpStructType
# {
#     float x;
#     int exp;
# };
#
# // Replaced with native function in SPIR-V.
# frexpStructType frexpStruct (float orig)
# {
#     float x;
#     int exp;
#     x = frexp(orig, exp);
#     frexpStructType res = { x, exp };
#     return res;
# }
#
# void main ()
# {
#     for (uint ndx = 0; ndx < ndp; ndx += 2)
#     {
#         uint in_uint = in_values[ndx/2];
#         float in_float = uintBitsToFloat(in_uint);
#         float x;
#         int exp;
#
#         x = frexp(in_float, exp);
#         frexpStructType res = frexpStruct(in_float);
#
#         frexp_out[ndx] = intBitsToFloat(exp);
#         frexp_out[ndx+1] = x;
#         frexpStruct_out[ndx] = intBitsToFloat(res.exp);
#         frexpStruct_out[ndx+1] = res.x;
#     }
#
#     return;
# }
# END

SHADER compute comp_shader SPIRV-ASM
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %main "main"
               OpExecutionMode %main LocalSize 1 1 1
               OpDecorate %_arr_uint_uint_648 ArrayStride 4
               OpMemberDecorate %block0 0 NonWritable
               OpMemberDecorate %block0 0 Offset 0
               OpDecorate %block0 BufferBlock
               OpDecorate %_ DescriptorSet 0
               OpDecorate %_ Binding 0
               OpDecorate %_arr_float_uint_1296 ArrayStride 4
               OpMemberDecorate %block1 0 Offset 0
               OpDecorate %block1 BufferBlock
               OpDecorate %__0 DescriptorSet 0
               OpDecorate %__0 Binding 1
               OpDecorate %_arr_float_uint_1296_0 ArrayStride 4
               OpMemberDecorate %block2 0 Offset 0
               OpDecorate %block2 BufferBlock
               OpDecorate %__1 DescriptorSet 0
               OpDecorate %__1 Binding 2
       %void = OpTypeVoid
          %3 = OpTypeFunction %void
      %float = OpTypeFloat 32
%_ptr_Function_float = OpTypePointer Function %float
        %int = OpTypeInt 32 1
%frexpStructType = OpTypeStruct %float %int
         %10 = OpTypeFunction %frexpStructType %_ptr_Function_float
%_ptr_Function_int = OpTypePointer Function %int
%_ptr_Function_frexpStructType = OpTypePointer Function %frexpStructType
       %uint = OpTypeInt 32 0
%_ptr_Function_uint = OpTypePointer Function %uint
     %uint_0 = OpConstant %uint 0
  %uint_1296 = OpConstant %uint 1296
       %bool = OpTypeBool
   %uint_648 = OpConstant %uint 648
%_arr_uint_uint_648 = OpTypeArray %uint %uint_648
     %block0 = OpTypeStruct %_arr_uint_uint_648
%_ptr_Uniform_block0 = OpTypePointer Uniform %block0
          %_ = OpVariable %_ptr_Uniform_block0 Uniform
      %int_0 = OpConstant %int 0
     %uint_2 = OpConstant %uint 2
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
%_arr_float_uint_1296 = OpTypeArray %float %uint_1296
     %block1 = OpTypeStruct %_arr_float_uint_1296
%_ptr_Uniform_block1 = OpTypePointer Uniform %block1
        %__0 = OpVariable %_ptr_Uniform_block1 Uniform
%_ptr_Uniform_float = OpTypePointer Uniform %float
     %uint_1 = OpConstant %uint 1
%_arr_float_uint_1296_0 = OpTypeArray %float %uint_1296
     %block2 = OpTypeStruct %_arr_float_uint_1296_0
%_ptr_Uniform_block2 = OpTypePointer Uniform %block2
        %__1 = OpVariable %_ptr_Uniform_block2 Uniform
      %int_1 = OpConstant %int 1
       %main = OpFunction %void None %3
          %5 = OpLabel
        %ndx = OpVariable %_ptr_Function_uint Function
    %in_uint = OpVariable %_ptr_Function_uint Function
   %in_float = OpVariable %_ptr_Function_float Function
        %x_0 = OpVariable %_ptr_Function_float Function
      %exp_0 = OpVariable %_ptr_Function_int Function
      %res_0 = OpVariable %_ptr_Function_frexpStructType Function
               OpStore %ndx %uint_0
               OpBranch %31
         %31 = OpLabel
               OpLoopMerge %33 %34 None
               OpBranch %35
         %35 = OpLabel
         %36 = OpLoad %uint %ndx
         %39 = OpULessThan %bool %36 %uint_1296
               OpBranchConditional %39 %32 %33
         %32 = OpLabel
         %47 = OpLoad %uint %ndx
         %49 = OpUDiv %uint %47 %uint_2
         %51 = OpAccessChain %_ptr_Uniform_uint %_ %int_0 %49
         %52 = OpLoad %uint %51
               OpStore %in_uint %52
         %54 = OpLoad %uint %in_uint
         %55 = OpBitcast %float %54
               OpStore %in_float %55
         %57 = OpLoad %float %in_float
         %59 = OpExtInst %float %1 Frexp %57 %exp_0
               OpStore %x_0 %59
         %62 = OpLoad %float %in_float
         %63 = OpExtInst %frexpStructType %1 FrexpStruct %62
               OpStore %res_0 %63
         %68 = OpLoad %uint %ndx
         %69 = OpLoad %int %exp_0
         %70 = OpBitcast %float %69
         %72 = OpAccessChain %_ptr_Uniform_float %__0 %int_0 %68
               OpStore %72 %70
         %73 = OpLoad %uint %ndx
         %75 = OpIAdd %uint %73 %uint_1
         %76 = OpLoad %float %x_0
         %77 = OpAccessChain %_ptr_Uniform_float %__0 %int_0 %75
               OpStore %77 %76
         %82 = OpLoad %uint %ndx
         %84 = OpAccessChain %_ptr_Function_int %res_0 %int_1
         %85 = OpLoad %int %84
         %86 = OpBitcast %float %85
         %87 = OpAccessChain %_ptr_Uniform_float %__1 %int_0 %82
               OpStore %87 %86
         %88 = OpLoad %uint %ndx
         %89 = OpIAdd %uint %88 %uint_1
         %90 = OpAccessChain %_ptr_Function_float %res_0 %int_0
         %91 = OpLoad %float %90
         %92 = OpAccessChain %_ptr_Uniform_float %__1 %int_0 %89
               OpStore %92 %91
               OpBranch %34
         %34 = OpLabel
         %93 = OpLoad %uint %ndx
         %94 = OpIAdd %uint %93 %uint_2
               OpStore %ndx %94
               OpBranch %31
         %33 = OpLabel
               OpReturn
               OpFunctionEnd
END

BUFFER buf_in DATA_TYPE uint32 SIZE 1296 FILE TEXT input.txt

BUFFER buf_frexp DATA_TYPE float SIZE 1296 FILL 0.0
BUFFER buf_frexpStruct DATA_TYPE float SIZE 1296 FILL 1.0

PIPELINE compute test_pipeline
    ATTACH comp_shader

    BIND BUFFER buf_in AS storage DESCRIPTOR_SET 0 BINDING 0
    BIND BUFFER buf_frexp AS storage DESCRIPTOR_SET 0 BINDING 1
    BIND BUFFER buf_frexpStruct AS storage DESCRIPTOR_SET 0 BINDING 2
END

RUN test_pipeline 1 1 1

EXPECT buf_frexp EQ_BUFFER buf_frexpStruct