As reported in http://gcc.gnu.org/ml/gcc-patches/2007-09/msg01505.html
The spu target builtins are not GC safe.
--
Summary: Vectorizer (or spu target builtins) and PCH don't get
along
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, GC
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pinskia at gcc dot gnu dot org
GCC build triplet: spu-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33505
