[Bug bootstrap/54795] [4.8 Regression] Random profiledbootstrap failure with LTO

markus at trippelsdorf dot de gcc-bugzilla@gcc.gnu.org
Wed Nov 21 21:53:00 GMT 2012


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54795

--- Comment #14 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-11-21 21:52:26 UTC ---
LTO gets miscompiled.

If I configure with:
~/gcc/configure --disable-bootstrap --disable-werror --disable-multilib
--enable-languages=c,c++ --enable-checking=yes,valgrind
and build with gcc-4.7, then the bad memory access in LTO vanishes.

This could be a dup of Bug 55430 (LRA miscompilation issue).



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