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-rw-r--r--gcc/c-decl.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index 5285c02..80ec48f 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -1842,6 +1842,17 @@ merge_decls (tree newdecl, tree olddecl, tree newtype, tree oldtype)
= C_DECL_BUILTIN_PROTOTYPE (olddecl);
}
+ /* Preserve function specific target and optimization options */
+ if (DECL_FUNCTION_SPECIFIC_TARGET (olddecl)
+ && !DECL_FUNCTION_SPECIFIC_TARGET (newdecl))
+ DECL_FUNCTION_SPECIFIC_TARGET (newdecl)
+ = DECL_FUNCTION_SPECIFIC_TARGET (olddecl);
+
+ if (DECL_FUNCTION_SPECIFIC_OPTIMIZATION (olddecl)
+ && !DECL_FUNCTION_SPECIFIC_OPTIMIZATION (newdecl))
+ DECL_FUNCTION_SPECIFIC_OPTIMIZATION (newdecl)
+ = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (olddecl);
+
/* Also preserve various other info from the definition. */
if (!new_is_definition)
{