From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Tue, 14 Feb 2012 18:02:09 +0000 (+0000)
Subject: re PR go/48501 (64bit-out.go, select5-out.go, tmp.go compilation times out)
X-Git-Tag: upstream/12.2.0~77988
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=95787705db5e014d9ba13ee428bb4d5a2b1f55ee;p=platform%2Fupstream%2Fgcc.git

re PR go/48501 (64bit-out.go, select5-out.go, tmp.go compilation times out)

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

From-SVN: r184218
---

diff --git a/libgo/runtime/go-type-identity.c b/libgo/runtime/go-type-identity.c
index a0168e2..142edf4 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;