| # REQUIRES: x86-registered-target | |
| # RUN: cp -f %S/Inputs/prefix-never-matches.ll %t.ll | |
| # RUN: %update_llc_test_checks %t.ll 2>&1 | FileCheck %s | |
| # RUN: FileCheck --input-file=%t.ll %s --check-prefix=OUTPUT | |
| # CHECK: WARNING: Prefix A had conflicting output | |
| # OUTPUT-NOT: A: |