From b3a50850b16796a6bb2505cabf14571e1e13c656 Mon Sep 17 00:00:00 2001
From: Xinliang David Li <davidxl@google.com>
Date: Tue, 9 Nov 2010 02:01:06 +0000
Subject: Fix PR/46316

From-SVN: r166469
---
 gcc/double-int.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'gcc/double-int.c')

diff --git a/gcc/double-int.c b/gcc/double-int.c
index cb63f85..f3501a5 100644
--- a/gcc/double-int.c
+++ b/gcc/double-int.c
@@ -718,6 +718,19 @@ double_int_mul (double_int a, double_int b)
   return ret;
 }
 
+/* Returns A * B. If the operation overflows according to UNSIGNED_P,
+   *OVERFLOW is set to nonzero.  */
+
+double_int
+double_int_mul_with_sign (double_int a, double_int b,
+                          bool unsigned_p, int *overflow)
+{
+  double_int ret;
+  *overflow = mul_double_with_sign (a.low, a.high, b.low, b.high,
+                                    &ret.low, &ret.high, unsigned_p);
+  return ret;
+}
+
 /* Returns A + B.  */
 
 double_int
-- 
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