http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52614
--- Comment #5 from Rainer Orth <ro at gcc dot gnu.org> 2012-03-20 16:37:04 UTC --- For the single testcase I've been using for the reghunt (gcc.dg/vect/vect-109.c), adding -fno-common fixes the failure. On SPARC, one probably also has to add -fno-common to gcc.target/sparc/fpmul-2.c. I'll now run a full bootstrap with those changes. Rainer