From: ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 14 Feb 2012 18:02:09 +0000 (+0000)
Subject: 	PR go/48501
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d5d7fe56071bd153f8d734d57154a45aff8eee5f;p=thirdparty%2Fgcc.git

	PR go/48501
runtime: Fix identity hash function for big-endian systems.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184218 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/libgo/runtime/go-type-identity.c b/libgo/runtime/go-type-identity.c
index a0168e248361..142edf424640 100644
--- a/libgo/runtime/go-type-identity.c
+++ b/libgo/runtime/go-type-identity.c
@@ -32,7 +32,10 @@ __go_type_hash_identity (const void *key, uintptr_t key_size)
       } u;
       u.v = 0;
       __builtin_memcpy (&u.a, key, key_size);
-      return (uintptr_t) u.v;
+      if (sizeof (uintptr_t) >= 8)
+	return (uintptr_t) u.v;
+      else
+	return (uintptr_t) ((u.v >> 32) ^ (u.v & 0xffffffff));
     }
 
   ret = 5381;