https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98692
--- Comment #8 from Nick Child <nick.child at ibm dot com> --- Hello all, Thanks for taking a look at this. In response to some questions: I am using Valgrind 3.16.1 (latest release). And I have encountered this issue on a Power 8 and Power 9 LE machine with multiple versions of RHEL and on Ubuntu. Thanks again, Nick