bash-3.2$ cat x.c unsigned long long foo (unsigned long long x, unsigned long long y) { return __builtin_ia32_crc32di (x, y); } bash-3.2$ /usr/gcc-4.3/bin/gcc -m32 -msse4 -c x.c x.c: In function foo: x.c:5: error: unrecognizable insn: (insn 6 5 7 3 x.c:4 (set (reg:DI 58 [ D.1635 ]) (unspec:DI [ (reg:DI 60) (mem/c/i:DI (plus:SI (reg/f:SI 53 virtual-incoming-args) (const_int 8 [0x8])) [0 y+0 S8 A32]) ] 143)) -1 (nil)) x.c:5: internal compiler error: in extract_insn, at recog.c:1990 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. bash-3.2$
__builtin_ia32_crc32di shouldn't be defined for 32bit. -- Summary: Incorrect crc32 builtins for ia32 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl dot tools at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36095