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      1 ; RUN: opt -instcombine -S < %s | FileCheck %s
      2 
      3 define i32 @test(i32 %x) {
      4 ; CHECK-LABEL: @test
      5 entry:
      6 ; CHECK-NOT: icmp
      7 ; CHECK: br i1 undef, 
      8   %cmp = icmp ult i32 %x, 7
      9   br i1 %cmp, label %merge, label %merge
     10 merge:
     11 ; CHECK-LABEL: merge:
     12 ; CHECK: ret i32 %x
     13   ret i32 %x
     14 }
     15 
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