The new definition is more useful to the unwinder.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168668
138bc75d-0d04-0410-961f-
82ee72b054a4
+2011-01-11 Richard Henderson <rth@redhat.com>
+
+ * config/mn10300/mn10300.h (INCOMING_RETURN_ADDR_RTX): Define
+ in terms of the value on the stack, not the MDR register.
+
2011-01-11 Jan Hubicka <jh@suse.cz>
PR lto/45721
? gen_rtx_MEM (Pmode, arg_pointer_rtx) \
: (rtx) 0)
-#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, MDR_REGNUM)
+/* The return address is saved both in the stack and in MDR. Using
+ the stack location is handiest for what unwinding needs. */
+#define INCOMING_RETURN_ADDR_RTX \
+ gen_rtx_MEM (VOIDmode, gen_rtx_REG (VOIDmode, STACK_POINTER_REGNUM))
\f
/* Maximum number of registers that can appear in a valid memory address. */