[Bug c/12678] New: ICE on large vector arguments to a function

[jivera at flame dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12678

           Summary: ICE on large vector arguments to a function
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jivera at flame dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-cygwin
  GCC host triplet: i686-pc-cygwin
GCC target triplet: i686-pc-cygwin

$ cat mmx.c

typedef int v16si __attribute__ ((mode(V16QI)));

v16si
func (v16si a, v16si b)
{
  return a + b;
}


$ gcc -c -o mmx.o mmx.c
mmx.c: In function `func':
mmx.c:8: internal compiler error: in ix86_function_arg_boundary, at
config/i386/i386.c:2458
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

$ gcc -c -o mmx.o mmx.c -march=athlon-xp
mmx.c: In function `func':
mmx.c:8: error: insn does not satisfy its constraints:
(insn 44 29 33 0 (set (reg:SI 21 exmm0)
        (reg:SI 0 eax)) 38 {*movsi_1} (nil)
    (nil))
mmx.c:8: internal compiler error: in extract_constrain_insn_cached, at recog.c:2090
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.