http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56043
--- Comment #1 from Michael Meissner <meissner at gcc dot gnu.org> 2013-02-07 20:27:19 UTC --- Created attachment 29390 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29390 Patch to fix the problem There are two problems here. The first problem is the segmentation fault if the builtin function does not have an implicit function. The patch adds code to return NULL_TREE in this case, rather than cause a segmentation violation due to a NULL pointer. However, in the case of powerpc-none-eabi, the vsx-mass-1.c test would still fail, since some of the builtin functions are not treated as builtin (such as atan2, which is what caused the fault). Since the MASS library is only available for powerpc Linux, I have restricted the test to only run on powerpc*-*-linux*.