[committed] lto: Pass cache checksum by reference [PR118181]

[Michal Jires]

Bootstrapped/regtested on x86_64-linux. Committed as obvious.

        PR lto/118181

gcc/ChangeLog:

        * lto-ltrans-cache.cc (ltrans_file_cache::create_item):
        Pass checksum by reference.
        * lto-ltrans-cache.h: Likewise.
---
 gcc/lto-ltrans-cache.cc | 2 +-
 gcc/lto-ltrans-cache.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/lto-ltrans-cache.cc b/gcc/lto-ltrans-cache.cc
index 22c0bffaed5..c57775fae85 100644
--- a/gcc/lto-ltrans-cache.cc
+++ b/gcc/lto-ltrans-cache.cc
@@ -309,7 +309,7 @@ ltrans_file_cache::save_cache ()
 
    Must be called with creation_lock held to prevent data race.  */
 ltrans_file_cache::item*
-ltrans_file_cache::create_item (checksum_t checksum)
+ltrans_file_cache::create_item (const checksum_t& checksum)
 {
   size_t prefix_len = cache_prefix.size ();
 
diff --git a/gcc/lto-ltrans-cache.h b/gcc/lto-ltrans-cache.h
index b95f63c3335..5fef44bae53 100644
--- a/gcc/lto-ltrans-cache.h
+++ b/gcc/lto-ltrans-cache.h
@@ -108,7 +108,7 @@ private:
      New input/output files are chosen to not collide with other items.
 
      Must be called with creation_lock held to prevent data race.  */
-  item* create_item (checksum_t checksum);
+  item* create_item (const checksum_t& checksum);
 
   /* Prunes oldest unused cache items over limit.
      Must be called with deletion_lock held to prevent data race.  */
-- 
2.47.1