2 files changed, 7 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index c1a1ef338..628461ac2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sat Dec 17 03:57:01 2005  Tanaka Akira  <akr@m17n.org>
+
+	* bignum.c (rb_big_rshift): fix a GC problem on
+	  IA64 with gcc 4.0.3 20051216 (prerelease).
+
 Sat Dec 17 03:30:23 2005  Tanaka Akira  <akr@m17n.org>
 
 	* eval.c (bmcall): fix a GC problem by tail call on
diff --git a/bignum.c b/bignum.c
index 536779bb4..425676d32 100644
--- a/bignum.c
+++ b/bignum.c
@@ -1855,6 +1855,7 @@ rb_big_rshift(x, y)
     VALUE z;
     BDIGIT_DBL num = 0;
     long i, j;
+    volatile VALUE save_x;
 
     if (shift < 0) return rb_big_lshift(x, INT2FIX(-shift));
 
@@ -1865,7 +1866,7 @@ rb_big_rshift(x, y)
 	    return INT2FIX(-1);
     }
     if (!RBIGNUM(x)->sign) {
-	x = rb_big_clone(x);
+	save_x = x = rb_big_clone(x);
 	get2comp(x);
     }
     xds = BDIGITS(x);