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authorRichard Henderson <rth@cygnus.com>1999-10-08 11:59:27 -0700
committerRichard Henderson <rth@gcc.gnu.org>1999-10-08 11:59:27 -0700
commit455419a530baf5901f1042fab7e2b6b57dab67ed (patch)
treecddcb39175d25fa392549428b86287ef7cad01e3 /gcc/lists.c
parenta6de7040f89c411df4fd8e8ddd98717a43ac313b (diff)
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lists.c (init_EXPR_INSN_LIST_cache): Don't need to zap the cache every function if ggc_p.
* lists.c (init_EXPR_INSN_LIST_cache): Don't need to zap the cache every function if ggc_p. From-SVN: r29872
Diffstat (limited to 'gcc/lists.c')
-rw-r--r--gcc/lists.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/gcc/lists.c b/gcc/lists.c
index 90b6796..8c622a6 100644
--- a/gcc/lists.c
+++ b/gcc/lists.c
@@ -120,15 +120,22 @@ zap_lists (dummy)
void
init_EXPR_INSN_LIST_cache ()
{
- static int initialized;
- if (!initialized)
+ if (ggc_p)
{
- initialized = 1;
- ggc_add_root (&unused_expr_list, 1, 1, zap_lists);
+ static int initialized;
+ if (!initialized)
+ {
+ initialized = 1;
+ ggc_add_root (&unused_expr_list, 1, 1, zap_lists);
+ }
+
+ /* No need to squish the lists across functions with GC enabled. */
+ }
+ else
+ {
+ unused_expr_list = NULL;
+ unused_insn_list = NULL;
}
-
- unused_expr_list = NULL;
- unused_insn_list = NULL;
}
/* This function will free up an entire list of EXPR_LIST nodes. */