rs6000.h (LEGITIMIZE_RELOAD_ADDRESS): Recognize and accept transformations that…

rs6000.h (LEGITIMIZE_RELOAD_ADDRESS): Recognize and accept transformations that we have performed earlier.

        * rs6000.h (LEGITIMIZE_RELOAD_ADDRESS): Recognize and accept
        transformations that we have performed earlier.
        * alpha.h (LEGITIMIZE_RELOAD_ADDRESS): Likewise.

From-SVN: r24809

gcc/ChangeLog

+Thu Jan 21 20:24:02 1999  Richard Henderson  <rth@cygnus.com>
+
+	* rs6000.h (LEGITIMIZE_RELOAD_ADDRESS): Recognize and accept
+	transformations that we have performed earlier.
+	* alpha.h (LEGITIMIZE_RELOAD_ADDRESS): Likewise.
+
+	* alpha.md (prologue_stack_probe_loop): Don't do our own label
+	handling, call gen_label_rtx instead.
+
 Thu Jan 21 17:45:18 1999  Richard Henderson  <rth@cygnus.com>
 
 	* configure.in ({rs6000|powerpc}-ibm-aix4.[12]*): Add missing `then'.

gcc/config/alpha/alpha.h

@@ -1517,6 +1517,18 @@ extern void alpha_init_expanders ();
    
 #define LEGITIMIZE_RELOAD_ADDRESS(X,MODE,OPNUM,TYPE,IND_LEVELS,WIN)	\
 do {									\
+  /* We must recognize output that we have already generated ourselves.  */ \
+  if (GET_CODE (X) == PLUS						\
+      && GET_CODE (XEXP (X, 0)) == PLUS					\
+      && GET_CODE (XEXP (XEXP (X, 0), 0)) == REG			\
+      && GET_CODE (XEXP (XEXP (X, 0), 1)) == CONST_INT			\
+      && GET_CODE (XEXP (X, 1)) == CONST_INT)				\
+    {									\
+      push_reload (XEXP (X, 0), NULL_RTX, &XEXP (X, 0), NULL_PTR,	\
+		   BASE_REG_CLASS, GET_MODE (X), VOIDmode, 0, 0,	\
+		   OPNUM, TYPE);					\
+      goto WIN;								\
+    }									\
   if (GET_CODE (X) == PLUS						\
       && GET_CODE (XEXP (X, 0)) == REG					\
       && REGNO (XEXP (X, 0)) < FIRST_PSEUDO_REGISTER			\

gcc/config/rs6000/rs6000.h

@@ -2030,6 +2030,18 @@ typedef struct rs6000_args
    
 #define LEGITIMIZE_RELOAD_ADDRESS(X,MODE,OPNUM,TYPE,IND_LEVELS,WIN)     \
 do {                                                                    \
+  /* We must recognize output that we have already generated ourselves.  */ \
+  if (GET_CODE (X) == PLUS						\
+      && GET_CODE (XEXP (X, 0)) == PLUS					\
+      && GET_CODE (XEXP (XEXP (X, 0), 0)) == REG			\
+      && GET_CODE (XEXP (XEXP (X, 0), 1)) == CONST_INT			\
+      && GET_CODE (XEXP (X, 1)) == CONST_INT)				\
+    {									\
+      push_reload (XEXP (X, 0), NULL_RTX, &XEXP (X, 0), NULL_PTR,       \
+                   BASE_REG_CLASS, GET_MODE (X), VOIDmode, 0, 0,        \
+                   OPNUM, TYPE);                                        \
+      goto WIN;                                                         \
+    }									\
   if (GET_CODE (X) == PLUS                                              \
       && GET_CODE (XEXP (X, 0)) == REG                                  \
       && REGNO (XEXP (X, 0)) < FIRST_PSEUDO_REGISTER                    \