[Bug target/16533] New: ICE on va-arg-25.c testcase when -Os and -msse are given

[jbuck at gcc dot gnu dot org]

PR 16354 was just fixed, and I tested the fix.  I noticed that there is a new
warning:

va-arg-25.c:32: warning: SSE vector argument without SSE enabled changes the ABI

So I entered

gcc -Os -msse va-arg-25.c

and I get

va-arg-25.c: In function `main':
va-arg-25.c:36: error: unrecognizable insn:
(insn:HI 11 10 12 0 (set (mem/i:V4SI (pre_dec:SI (reg/f:SI 7 sp)) [0 S16 A128])
        (reg:V4SI 59)) -1 (insn_list 10 (nil))
    (expr_list:REG_DEAD (reg:V4SI 59)
        (nil)))
va-arg-25.c:36: internal compiler error: in extract_insn, at recog.c:2050

The test case is
gcc/testsuite/gcc.c-torture/execute/va-arg-25.c

-- 
           Summary: ICE on va-arg-25.c testcase when -Os and -msse are given
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jbuck at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16533