https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87485
--- Comment #15 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Uroš Bizjak from comment #14) > (In reply to Jakub Jelinek from comment #13) > > (In reply to Uroš Bizjak from comment #12) > > > (In reply to Jakub Jelinek from comment #10) > > > > and r264676 fixed that ICE, but hangs on it. > > > Are you sure you have correct revision here? Mentioned revision removes > > > FPSR > > > x87 status register, which x86_64 should not use at all. The description > > > mentions r264726 that mentions many changes in ira-lives.c and lra-lives.c > > > > Yes. > > Strange... Even more strange is the fact, that it works for me with: > > GCC: (GNU) 9.0.0 20181119 (experimental) [trunk revision 266278] > > $ /ssd/uros/gcc-build/gcc/cc1 -quiet -O2 -fschedule-insns > -fno-guess-branch-probability -fno-isolate-erroneous-paths-dereference > -fno-omit-frame-pointer -fno-split-wide-types -fno-tree-ccp -fno-tree-sra > pr87485.c; echo $? > pr87485.c: In function ‘c8’: > pr87485.c:19:23: warning: division by zero [-Wdiv-by-zero] > 19 | *xh += fl < (e4 / 0); > | ^ > 0 Ah, needs also -fstack-protector-strong.
