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authormrs <mrs@138bc75d-0d04-0410-961f-82ee72b054a4>2010-02-20 17:28:14 +0000
committermrs <mrs@138bc75d-0d04-0410-961f-82ee72b054a4>2010-02-20 17:28:14 +0000
commit5b5632f73a3e4722ea361d9c11d9e53efd76606c (patch)
tree726f3c2083b55909bc072fa4afaf459f0c016422 /gcc/c-decl.c
parent08803898f86ac4e22632737f1bd52668dbb4e663 (diff)
downloadgcc-5b5632f73a3e4722ea361d9c11d9e53efd76606c.tar.gz
PR middle-end/43125
* c-decl.c (merge_decls): Merge DECL_PRESERVE_P. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@156927 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-decl.c')
-rw-r--r--gcc/c-decl.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index e48cdc88e4e..e8e7a45f94f 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -2387,6 +2387,10 @@ merge_decls (tree newdecl, tree olddecl, tree newtype, tree oldtype)
TREE_USED (newdecl) = 1;
else if (TREE_USED (newdecl))
TREE_USED (olddecl) = 1;
+ if (DECL_PRESERVE_P (olddecl))
+ DECL_PRESERVE_P (newdecl) = 1;
+ else if (DECL_PRESERVE_P (newdecl))
+ DECL_PRESERVE_P (olddecl) = 1;
/* Copy most of the decl-specific fields of NEWDECL into OLDDECL.
But preserve OLDDECL's DECL_UID, DECL_CONTEXT and