// testcase, compile with -fno-tree-dominator-opts :
void foo (int p[100], int k, )
{
int j, *q;
__builtin_va_list ap;
__builtin_va_start (ap, k);
q = __builtin_va_arg (ap, int *);
for (j = 0; j < 100; j++)
p [j] = q [j];
__builtin_va_end(ap);
}
// compiler output:
capifunc.i: In function 'foo':
capifunc.i:2: internal compiler error: in dominated_by_p, at dominance.c:827

Additional Comments From pinskia at gcc dot gnu dot org 2005-09-11 14:36
Note this is only reproducible on x86_64 because of the way var_args are implemented.

Additional Comments From pinskia at gcc dot gnu dot org 2005-09-11 14:38
Confirmed, it is ICE while doing std args which is also new for 4.1.0.

Additional Comments From belyshev at depni dot sinp dot msu dot ru 2005-09-12 14:20
Patch posted.

Additional Comments From pinskia at gcc dot gnu dot org 2005-09-16 23:05
(In reply to comment #3)
Patch posted.
And approved.

Additional Comments From cvs-commit at gcc dot gnu dot org 2005-09-20 15:29
Subject: Bug 23818

CVSRT:/cvs/gcc
Module name:gcc
Changes by:jakub (AT) gcc (DOT) gnu.org2005-09-20 15:29:42

Modified files:
gcc : ChangeLog tree-stdarg.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg: pr23818.c

Log message:
PR tree-optimization/23818
* tree-stdarg.c (execute_optimize_stdarg): Call
calculate_dominance_info.

* gcc.dg/pr23818.c: New test.

Patches:

Additional Comments From pinskia at gcc dot gnu dot org 2005-09-20 15:56
Fixed.