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      1 ; RUN: opt -S -globalopt < %s | FileCheck %s
      2 
      3 ; CHECK: @tmp = global i32 42
      4 
      5 @llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }]
      6 @tmp = global i32 0
      7 
      8 define i32 @TheAnswerToLifeTheUniverseAndEverything() {
      9   ret i32 42
     10 }
     11 
     12 define void @_GLOBAL__I_a() {
     13 enter:
     14   %tmp1 = call i32 @TheAnswerToLifeTheUniverseAndEverything()
     15   store i32 %tmp1, i32* @tmp
     16   %cmp = icmp eq i32 %tmp1, 42
     17   call void @llvm.assume(i1 %cmp)
     18   ret void
     19 }
     20 
     21 declare void @llvm.assume(i1)
     22