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      1 ; RUN: llc -mtriple=arm64-apple-darwin -aarch64-atomic-cfg-tidy=0                             -verify-machineinstrs < %s | FileCheck %s
      2 ; RUN: llc -mtriple=arm64-apple-darwin -aarch64-atomic-cfg-tidy=0 -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s
      3 
      4 ; Test if the BBs are reordred according to their branch weights.
      5 define i64 @branch_weights_test(i64 %a, i64 %b) {
      6 ; CHECK-LABEL: branch_weights_test
      7 ; CHECK-LABEL: success
      8 ; CHECK-LABEL: fail
      9   %1 = icmp ult i64 %a, %b
     10   br i1 %1, label %fail, label %success, !prof !0
     11 
     12 fail:
     13   ret i64 -1
     14 
     15 success:
     16   ret i64 0
     17 }
     18 
     19 !0 = !{!"branch_weights", i32 0, i32 2147483647}
     20