(fold): Don't assume a nonexplicit constant cannot equal an explicit one.

From-SVN: r13650

(fold): Don't assume a nonexplicit constant cannot equal an explicit one.
From-SVN: r13650
e80c9ccb · Richard Kenner · 6ac62473 · e80c9ccb
Commit e80c9ccb authored Feb 15, 1997 by Richard Kenner
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gcc/fold-const.c
+2 -1

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--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -5335,6 +5335,7 @@ fold (expr)
 			      0);
 	}

+#if 0 /* This is no longer useful, but breaks some real code.  */
      /* Assume a nonexplicit constant cannot equal an explicit one,
 	 since such code would be undefined anyway.
 	 Exception: on sysvr4, using #pragma weak,
@@ -5345,7 +5346,7 @@ fold (expr)
 	       && TREE_CODE (arg0) == ADDR_EXPR
 	       && code == EQ_EXPR)
 	t1 = build_int_2 (0, 0);
-
+#endif
      /* Two real constants can be compared explicitly.  */
      else if (TREE_CODE (arg0) == REAL_CST && TREE_CODE (arg1) == REAL_CST)
 	{