(mips_legitimate_address_p): Don't allow register+offset if the offset is large and negative...

	* (mips_legitimate_address_p): Don't allow register+offset
	if the offset is large and negative, and we are compiling
	for 64 bit registers.

From-SVN: r35477

gcc/ChangeLog

+Fri Aug  4 06:53:46 2000  Clinton Popetz  <cpopetz@cygnus.com>
+
+	* (mips_legitimate_address_p): Don't allow register+offset              
+	if the offset is large and negative, and we are compiling               
+	for 64 bit registers.                                                   
+
 2000-08-04 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
 
 	* gencodes.c (main): Define CODE_FOR_nothing as the last possible

gcc/config/mips/mips.c

@@ -1329,6 +1329,10 @@ mips_legitimate_address_p (mode, xinsn, strict)
 	      && (!TARGET_EMBEDDED_PIC					
 		  || code1 != CONST					
 		  || GET_CODE (XEXP (xplus1, 0)) != MINUS)		
+	      /* When assembling for machines with 64 bit registers, 
+	         the assembler will not sign-extend the constant "foo"
+		 in "la x, foo(x)" */
+	      && (!TARGET_64BIT || (INTVAL (xplus1) > 0))
 	      && !TARGET_MIPS16)					
 	    return 1;							
 	}