+2006-01-10 Eric Botcazou <ebotcazou@libertysurf.fr>
+
+ PR rtl-optimization/25367
+ * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
+
2006-01-10 Hans-Peter Nilsson <hp@axis.com>
PR target/25718
#define HARD_REGNO_MODE_OK(REGNO, MODE) \
((hard_regno_mode_classes[REGNO] & sparc_mode_class[MODE]) != 0)
+/* Value is 1 if it is OK to rename a hard register FROM to another hard
+ register TO. We cannot rename %g1 as it may be used before the save
+ register window instruction in the prologue. */
+#define HARD_REGNO_RENAME_OK(FROM, TO) ((FROM) != 1)
+
/* Value is 1 if it is a good idea to tie two pseudo registers
when one has mode MODE1 and one has mode MODE2.
If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,