https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67192
--- Comment #22 from Andreas Arnez <arnez at linux dot vnet.ibm.com> --- Here's another version of the fix: https://gcc.gnu.org/ml/gcc-patches/2015-11/msg00368.html It addresses an issue with the previous version that was brought up by Bernd Schmidt: A breakpoint on the "while (1)" didn't behave as expected, but on the first hit one loop iteration may have executed already.