http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55467
--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2012-11-26 00:30:10 UTC --- Created attachment 28775 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28775 gcc.dg/guality/pr55467-2.c Here's pr55467-2.c, a variant of gcc.dg/guality/pr36728-2.c, actually gcc.dg/guality/pr36728-2.c with the patch from <http://gcc.gnu.org/ml/gcc-patches/2012-11/msg01542.html>. It fails at least at r193349, r193583 and r193777 as follows (well, for the two first mentioned, you'll see "ERROR" as explained and fixed in <http://gcc.gnu.org/ml/gcc-patches/2012-11/msg01998.html>): Running /home/hp/gcctop/tmp/nbasg/gcc/gcc/testsuite/gcc.dg/guality/guality.exp ... FAIL: gcc.dg/guality/pr55467-2.c -O2 line 14 y == 2 FAIL: gcc.dg/guality/pr55467-2.c -O3 -fomit-frame-pointer line 14 y == 2 FAIL: gcc.dg/guality/pr55467-2.c -O3 -g line 14 y == 2 FAIL: gcc.dg/guality/pr55467-2.c -Os line 14 y == 2 FAIL: gcc.dg/guality/pr55467-2.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 14 y == 2 FAIL: gcc.dg/guality/pr55467-2.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 14 y == 2 In gcc.log, you'll see that gdb reads some different value, like 0, 1, or -23360.
