File: branch.spv

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llvm-toolchain-21 1%3A21.1.6-3
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; RUN: %if spirv-tools %{ spirv-as %s -o - | spirv-val - %}
; RUN: spirv-sim --function=simple --wave=3 --expects=5,6,6 -i %s
               OpCapability Shader
               OpCapability GroupNonUniform
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %main "main" %WaveIndex
               OpExecutionMode %main LocalSize 1 1 1
               OpSource HLSL 670
               OpName %simple "simple"
               OpName %main "main"
                OpDecorate %WaveIndex BuiltIn SubgroupLocalInvocationId
        %int = OpTypeInt 32 1
       %uint = OpTypeInt 32 0
       %bool = OpTypeBool
      %int_2 = OpConstant %int 2
      %int_5 = OpConstant %int 5
      %int_6 = OpConstant %int 6
     %uint_0 = OpConstant %uint 0
       %void = OpTypeVoid
  %main_type = OpTypeFunction %void
%simple_type = OpTypeFunction %int
  %uint_iptr = OpTypePointer Input %uint
  %WaveIndex = OpVariable %uint_iptr Input
       %main = OpFunction %void None %main_type
      %entry = OpLabel
               OpReturn
               OpFunctionEnd
     %simple = OpFunction %int None %simple_type
          %1 = OpLabel
          %2 = OpLoad %uint %WaveIndex
          %3 = OpIEqual %bool %uint_0 %2
               OpSelectionMerge %merge None
               OpBranchConditional %3 %true %false
       %true = OpLabel
               OpBranch %merge
      %false = OpLabel
               OpBranch %merge
      %merge = OpLabel
          %4 = OpPhi %int %int_5 %true %int_6 %false
               OpReturnValue %4
               OpFunctionEnd