reload.c (operands_match_p): Handle rtvecs.

        * reload.c (operands_match_p): Handle rtvecs.
        * i386.c (legitimate_pic_address_disp_p): New.
        (legitimate_address_p): Use it.
        (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
        Handle constant pool symbols just like statics.
        (emit_pic_move): Use Pmode not SImode for clarity.
        (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
        [UNSPEC]: New, handling what we killed above.
        [PLUS]: Detect and abort on invalid symbol arithmetic.
        * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.

From-SVN: r21968

gcc/ChangeLog

+Tue Aug 25 12:23:20 PDT 1998  Richard Henderson  <rth@cygnus.com>
+
+        * reload.c (operands_match_p): Handle rtvecs.
+
+        * i386.c (legitimate_pic_address_disp_p): New.
+        (legitimate_address_p): Use it.
+        (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
+        Handle constant pool symbols just like statics.
+        (emit_pic_move): Use Pmode not SImode for clarity.
+        (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
+        [UNSPEC]: New, handling what we killed above.
+        [PLUS]: Detect and abort on invalid symbol arithmetic.
+        * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
+
 Tue Aug 25 12:02:23 1998  Mark Mitchell  <mark@markmitchell.com>
 
 	* alias.c: Include output.h.

gcc/config/i386/i386.h

@@ -1703,10 +1703,9 @@ do {						\
 
 #define MAX_REGS_PER_ADDRESS 2
 
-#define CONSTANT_ADDRESS_P(X)   \
-  (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF		\
-   || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST		\
-   || GET_CODE (X) == HIGH)
+#define CONSTANT_ADDRESS_P(X)					\
+  (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF	\
+   || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST)
 
 /* Nonzero if the constant value X is a legitimate general operand.
    It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE.  */

gcc/config/i386/i386.md

@@ -64,6 +64,9 @@
 ;;    prevent insns referencing it being scheduled across the initial
 ;;    decrement of the stack pointer.
 ;; 5  This is a `bsf' operation.
+;; 6  This is the @GOT offset of a PIC address.
+;; 7  This is the @GOTOFF offset of a PIC address.
+;; 8  This is a reference to a symbol's @PLT address.
 
 ;; This shadows the processor_type enumeration, so changes must be made
 ;; to i386.h at the same time.

gcc/reload.c

@@ -2031,7 +2031,7 @@ operands_match_p (x, y)
   fmt = GET_RTX_FORMAT (code);
   for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
     {
-      int val;
+      int val, j;
       switch (fmt[i])
 	{
 	case 'w':
@@ -2057,6 +2057,19 @@ operands_match_p (x, y)
 	case '0':
 	  break;
 
+	case 'E':
+	  if (XVECLEN (x, i) != XVECLEN (y, i))
+	    return 0;
+	  for (j = XVECLEN (x, i) - 1; j >= 0; --j)
+	    {
+	      val = operands_match_p (XVECEXP (x, i, j), XVECEXP (y, i, j));
+	      if (val == 0)
+		return 0;
+	      if (val == 2)
+		success_2 = 1;
+	    }
+	  break;
+
 	  /* It is believed that rtx's at this level will never
 	     contain anything but integers and other rtx's,
 	     except for within LABEL_REFs and SYMBOL_REFs.  */