* config/mips/mips.c (mips_legitimate_address_p): Limit "la" addresses.

From-SVN: r44721

* config/mips/mips.c (mips_legitimate_address_p): Limit "la" addresses.
From-SVN: r44721
82423cba · Aldy Hernandez · Aldy Hernandez · 5755cd38 · 82423cba · 82423cba
Commit 82423cba authored Aug 08, 2001 by Aldy Hernandez Committed by Aldy Hernandez Aug 08, 2001
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gcc/ChangeLog
+4 -0

gcc/config/mips/mips.c
+6 -3

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2001-08-07  Aldy Hernandez  <aldyh@redhat.com>
+
+	* config/mips/mips.c (mips_legitimate_address_p): Limit "la" addresses.
+
 2001-08-08  Jason Merrill  <jason_merrill@redhat.com>

 	* alias.c (get_alias_set): Return a previously calculated

--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -1364,9 +1364,12 @@ mips_legitimate_address_p (mode, xinsn, strict)
 		  || 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 || (code1 == CONST_INT && INTVAL (xplus1) > 0))
+	         the assembler will sign-extend the constant "foo"
+		 in "la x, foo(x)" yielding the wrong result for:
+	         (set (blah:DI) (plus x y)).  */
+	      && (!TARGET_64BIT
+		  || trunc_int_for_mode (INTVAL (xplus1),
+					 SImode) == INTVAL (xplus1))
 	      && !TARGET_MIPS16)
 	    return 1;
 	}