[gcc r12-3757] Allocate non_null_ref tables at creation.

[gcc r12-3757] Allocate non_null_ref tables at creation.

[Aldy Hernandez]

https://gcc.gnu.org/g:08f392534a2c65fcebb1ce5a2f04459ac993a2f0

commit r12-3757-g08f392534a2c65fcebb1ce5a2f04459ac993a2f0
Author: Aldy Hernandez <aldyh@redhat.com>
Date:   Tue Sep 21 08:26:50 2021 +0200

    Allocate non_null_ref tables at creation.
    
    Preallocating the space is slightly cheaper than calling
    safe_grow_cleared.
    
    gcc/ChangeLog:
    
            * gimple-range-cache.cc (non_null_ref::non_null_ref): Use create
            and quick_grow_cleared instead of safe_grow_cleared.

Diff:
---
 gcc/gimple-range-cache.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/gimple-range-cache.cc b/gcc/gimple-range-cache.cc
index fbf0f95eef9..b856b212169 100644
--- a/gcc/gimple-range-cache.cc
+++ b/gcc/gimple-range-cache.cc
@@ -37,8 +37,8 @@ along with GCC; see the file COPYING3.  If not see
 
 non_null_ref::non_null_ref ()
 {
-  m_nn.create (0);
-  m_nn.safe_grow_cleared (num_ssa_names);
+  m_nn.create (num_ssa_names);
+  m_nn.quick_grow_cleared (num_ssa_names);
   bitmap_obstack_initialize (&m_bitmaps);
 }