Prevent use of MEM_* attr accessor macros as lvalues

gcc/ChangeLog:
	* rtl.h (get_mem_attrs): Add "const" qualifier to returned
	pointer.

From-SVN: r243487

1 files changed, 1 insertions, 1 deletions

diff --git a/gcc/rtl.h b/gcc/rtl.h
index a5efa28..4f0efa6 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -3355,7 +3355,7 @@ extern struct target_rtl *this_target_rtl;
 
 #ifndef GENERATOR_FILE
 /* Return the attributes of a MEM rtx.  */
-static inline struct mem_attrs *
+static inline const struct mem_attrs *
 get_mem_attrs (const_rtx x)
 {
   struct mem_attrs *attrs;