Fix bad use of FP reg in post-modify address.

	* config/ia64/ia64.h (INDEX_REG_CLASS): Define to GENERAL_REGS.
	(REGNO_OK_FOR_INDEX_P): Define to REGNO_OK_FOR_BASE_P.
	(LEGITIMATE_ADDRESS_DISP): Use LEGITIMATE_ADDRESS_REG.
	(REG_OK_FOR_INDEX): Define to REG_OK_FOR_BASE_P.

From-SVN: r36640

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3b3a6f2de3794a5094bec05c8b16f5d00c3fc576..aeba67f9301d6d96918bdf7e28c4abc4b15eb368 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2000-09-25  Jim Wilson  <wilson@cygnus.com>
+
+       * config/ia64/ia64.h (INDEX_REG_CLASS): Define to GENERAL_REGS.
+       (REGNO_OK_FOR_INDEX_P): Define to REGNO_OK_FOR_BASE_P.
+       (LEGITIMATE_ADDRESS_DISP): Use LEGITIMATE_ADDRESS_REG.
+       (REG_OK_FOR_INDEX): Define to REG_OK_FOR_BASE_P.
+
 Tue 26-Sep-2000 00:16:22 BST  Neil Booth  <neilb@earthling.net>
 
         * cpplex.c (parse_args): Don't set VOID_REST flag.

diff --git a/gcc/config/ia64/ia64.h b/gcc/config/ia64/ia64.h
index 68fa3fb6ae6f9c12dfc620fed0f7a71459889ff5..6f13d8cbd57ebf87fb9d5e3cd02e4fc6d1843507 100644 (file)
--- a/gcc/config/ia64/ia64.h
+++ b/gcc/config/ia64/ia64.h
@@ -978,8 +978,8 @@ enum reg_class
 /* A macro whose definition is the name of the class to which a valid index
    register must belong.  An index register is one used in an address where its
    value is either multiplied by a scale factor or added to another register
-   (as well as added to a displacement).  */
-#define INDEX_REG_CLASS NO_REGS
+   (as well as added to a displacement).  This is needed for POST_MODIFY.  */
+#define INDEX_REG_CLASS GENERAL_REGS
 
 /* A C expression which defines the machine-dependent operand constraint
    letters for register classes.  If CHAR is such a letter, the value should be
@@ -1004,8 +1004,9 @@ enum reg_class
 
 /* A C expression which is nonzero if register number NUM is suitable for use
    as an index register in operand addresses.  It may be either a suitable hard
-   register or a pseudo register that has been allocated such a hard reg.  */
-#define REGNO_OK_FOR_INDEX_P(NUM) 0
+   register or a pseudo register that has been allocated such a hard reg.
+   This is needed for POST_MODIFY.  */
+#define REGNO_OK_FOR_INDEX_P(NUM) REGNO_OK_FOR_BASE_P (NUM)
 
 /* A C expression that places additional restrictions on the register class to
    use when it is necessary to copy value X into a register in class CLASS.
@@ -1743,7 +1744,7 @@ do {                                                                      \
 #define LEGITIMATE_ADDRESS_DISP(R, X)                                  \
   (GET_CODE (X) == PLUS                                                        \
    && rtx_equal_p (R, XEXP (X, 0))                                     \
-   && (GET_CODE (XEXP (X, 1)) == REG                                   \
+   && (LEGITIMATE_ADDRESS_REG (XEXP (X, 1))                            \
        || (GET_CODE (XEXP (X, 1)) == CONST_INT                         \
           && INTVAL (XEXP (X, 1)) >= -256                              \
           && INTVAL (XEXP (X, 1)) < 256)))
@@ -1774,9 +1775,9 @@ do {                                                                      \
 #endif
 
 /* A C expression that is nonzero if X (assumed to be a `reg' RTX) is valid for
-   use as an index register.  */
+   use as an index register.  This is needed for POST_MODIFY.  */
 
-#define REG_OK_FOR_INDEX_P(X) 0
+#define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_BASE_P (X)
 
 /* A C compound statement that attempts to replace X with a valid memory
    address for an operand of mode MODE.