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 a0168e248361387b1100334f047f6f11289c0f9c..142edf424640614456a644fa2624b6540dae5c87 100644 (file)
--- 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;