https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80423
--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Created attachment 41200 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41200&action=edit unreduced testcase On ppc64le: % /home/trippels/gcc_7/usr/local/bin/g++ -fcompare-debug --param ggc-min-expand=20 --param ggc-min-heapsize=500 -c -O3 SampleProfReader.ii g++: error: SampleProfReader.ii: -fcompare-debug failure (length)