[patch] tree-cfg.c (create_bb): Remove unnecessary memset.

[Kazu Hirata]

Hi Jeff,

> > 	* tree-cfg.c (create_bb): Remove unnecessary memset.
> OK assuming you add a suitable comment indicating that alloc_block
> suitably initializes the block it creates.

Here is the final patch that I committed.

Kazu Hirata

2004-11-09  Kazu Hirata  <kazu@cs.umass.edu>

	* tree-cfg.c (create_bb): Remove unnecessary memset.

Index: tree-cfg.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-cfg.c,v
retrieving revision 2.104
diff -c -d -p -r2.104 tree-cfg.c
*** tree-cfg.c	9 Nov 2004 14:59:48 -0000	2.104
--- tree-cfg.c	9 Nov 2004 19:32:01 -0000
*************** create_bb (void *h, void *e, basic_block
*** 375,383 ****
  
    gcc_assert (!e);
  
!   /* Create and initialize a new basic block.  */
    bb = alloc_block ();
-   memset (bb, 0, sizeof (*bb));
  
    bb->index = last_basic_block;
    bb->flags = BB_NEW;
--- 375,384 ----
  
    gcc_assert (!e);
  
!   /* Create and initialize a new basic block.  Since alloc_block uses
!      ggc_alloc_cleared to allocate a basic block, we do not have to
!      clear the newly allocated basic block here.  */
    bb = alloc_block ();
  
    bb->index = last_basic_block;
    bb->flags = BB_NEW;