[gcc r11-4653] bootstrap/97666 - fix array of bool allocation

[gcc r11-4653] bootstrap/97666 - fix array of bool allocation

[Richard Biener]

https://gcc.gnu.org/g:9d1b813d0f7c9a8d80b0aee6eb1418b0afdf0f84

commit r11-4653-g9d1b813d0f7c9a8d80b0aee6eb1418b0afdf0f84
Author: Richard Biener <rguenther@suse.de>
Date:   Tue Nov 3 12:06:19 2020 +0100

    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:
---
 gcc/tree-vect-slp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index e97fbe897a7..08018a1d799 100644
--- 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))