re PR middle-end/51510 (gcc for arm-linux-gnueabi ICEs on gcc.c-torture/execute/20050...

	PR middle-end/51510
	* calls.c (internal_arg_pointer_based_exp_scan): Don't use
	VEC_safe_grow_cleared if idx is smaller than VEC_length.

From-SVN: r182246

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d02c8df3eb2067640acc1367ff68b09ae7a5bc1a..88b45d8fffe9db763dd8d5983250ed3eb6862856 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-12-12  Jakub Jelinek  <jakub@redhat.com>
+
+       PR middle-end/51510
+       * calls.c (internal_arg_pointer_based_exp_scan): Don't use
+       VEC_safe_grow_cleared if idx is smaller than VEC_length.
+
 2011-12-12  Richard Sandiford  <richard.sandiford@linaro.org>
 
        PR middle-end/50873

diff --git a/gcc/calls.c b/gcc/calls.c
index 95369b7baef9d913d2142c72020cb8b13f9f46de..0ef0cad8d27ecb746246350fb670f747db1a877d 100644 (file)
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -1705,9 +1705,11 @@ internal_arg_pointer_based_exp_scan (void)
            val = internal_arg_pointer_based_exp (SET_SRC (set), false);
          if (val != NULL_RTX)
            {
-             VEC_safe_grow_cleared (rtx, heap,
-                                    internal_arg_pointer_exp_state.cache,
-                                    idx + 1);
+             if (idx
+                 >= VEC_length (rtx, internal_arg_pointer_exp_state.cache))
+               VEC_safe_grow_cleared (rtx, heap,
+                                      internal_arg_pointer_exp_state.cache,
+                                      idx + 1);
              VEC_replace (rtx, internal_arg_pointer_exp_state.cache,
                           idx, val);
            }