bootstrap/97666 - fix array of bool allocation

This fixes the bad assumption that sizeof (bool) == 1

2020-11-03  Richard Biener  <rguenther@suse.de>

	PR bootstrap/97666
	* tree-vect-slp.c (vect_build_slp_tree_2): Scale
	allocation of skip_args by sizeof (bool).

diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index e97fbe897a76008d50ee94c3b1b009344cc37d4a..08018a1d799f58712d4476671580432b2d722eb4 100644 (file)
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -1428,7 +1428,7 @@ vect_build_slp_tree_2 (vec_info *vinfo, slp_tree node,
 
   /* If the SLP node is a PHI (induction or reduction), terminate
      the recursion.  */
-  bool *skip_args = XALLOCAVEC (bool, nops);
+  bool *skip_args = XALLOCAVEC (bool, sizeof (bool) * nops);
   memset (skip_args, 0, nops);
   if (loop_vec_info loop_vinfo = dyn_cast <loop_vec_info> (vinfo))
     if (gphi *stmt = dyn_cast <gphi *> (stmt_info->stmt))