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 --git a/gcc/gimple-range-cache.cc b/gcc/gimple-range-cache.cc
index fbf0f95eef90203d65d9bbfc150d5c0e449933fc..b856b212169bf60e31f028b05186c7b9aec1b83d 100644 (file)
--- 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);
 }