* fold-const.c (fold): Fix thinko in x+(-0) -> x transformation.

From-SVN: r30077

* fold-const.c (fold): Fix thinko in x+(-0) -> x transformation.
From-SVN: r30077
2af3e5fb · Alasdair Baird · Jeff Law · b61a6c81 · 2af3e5fb · 2af3e5fb
Commit 2af3e5fb authored Oct 19, 1999 by Alasdair Baird Committed by Jeff Law Oct 19, 1999
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gcc/ChangeLog
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gcc/fold-const.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+Tue Oct 19 01:26:48 1999  Alasdair Baird <alasdair@wildcat.demon.co.uk>
+
+	* fold-const.c (fold): Fix thinko in x+(-0) -> x transformation.
+
 Mon Oct 18 15:19:41 1999  Richard Henderson  <rth@cygnus.com>

 	* basic-block.h (set_block_num): Declare.

--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -4871,7 +4871,8 @@ fold (expr)
 	       && real_zerop (arg1))
 	return non_lvalue (convert (type, arg0));
      /* x+(-0) equals x, even for IEEE.  */
-      else if (REAL_VALUE_MINUS_ZERO (TREE_REAL_CST (arg1)))
+      else if (TREE_CODE (arg1) == REAL_CST
+	       && REAL_VALUE_MINUS_ZERO (TREE_REAL_CST (arg1)))
 	return non_lvalue (convert (type, arg0));

     bit_rotate: