From: Richard Kenner <kenner@gcc.gnu.org>
Date: Fri, 7 Feb 1997 18:10:26 +0000 (-0500)
Subject: (const_binop): Don't call size_int if low < 0.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=580ceef20e65cfc1303282e0d7d4377cb3f8f4d9;p=gcc.git

(const_binop): Don't call size_int if low < 0.

From-SVN: r13617
---

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index e76d6b93caf..1b49128d1b1 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -1212,7 +1212,7 @@ const_binop (code, arg1, arg2, notrunc)
 	}
     got_it:
       if (TREE_TYPE (arg1) == sizetype && hi == 0
-	  && low <= TREE_INT_CST_LOW (TYPE_MAX_VALUE (sizetype))
+	  && low >= 0 && low <= TREE_INT_CST_LOW (TYPE_MAX_VALUE (sizetype))
 	  && ! overflow
 	  && ! TREE_OVERFLOW (arg1) && ! TREE_OVERFLOW (arg2))
 	t = size_int (low);