Pipe output to /dev/null when running under perf record

... to avoid the test.log growing to 400MB per run of the test-suite
when using the perf record profiling feature.


git-svn-id: https://llvm.org/svn/llvm-project/test-suite/trunk@300696 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed