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-rw-r--r--gcc/calls.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/calls.c b/gcc/calls.c
index 52d5cd7684e..c510a33a11b 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -2837,7 +2837,7 @@ emit_library_call_value VPROTO((rtx orgfun, rtx value, int no_queue,
library functions shouldn't have many args. */
argvec = (struct arg *) alloca ((nargs + 1) * sizeof (struct arg));
- bzero ((char *) argvec, nargs * sizeof (struct arg));
+ bzero ((char *) argvec, (nargs + 1) * sizeof (struct arg));
INIT_CUMULATIVE_ARGS (args_so_far, NULL_TREE, fun, 0);