siphash.c: fix missing condition

* siphash.c (sip_hash24): fix for aligned word access little endian
  platforms.  [ruby-core:58658] [Bug #9172]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43928 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sat Nov 30 13:28:13 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* siphash.c (sip_hash24): fix for aligned word access little endian
+	  platforms.  [ruby-core:58658] [Bug #9172]
+
 Sat Nov 30 13:21:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_eval.c (rb_yield_block): implement non-nil block argument.

siphash.c

@@ -417,7 +417,7 @@ sip_hash24(const uint8_t key[16], const uint8_t *data, size_t len)
 	    SIP_2_ROUND(m, v0, v1, v2, v3);
         }
     }
-#elif BYTE_ORDER == BIG_ENDIAN
+#else
     for (; data != end; data += sizeof(uint64_t)) {
 	m = U8TO64_LE(data);
 	SIP_2_ROUND(m, v0, v1, v2, v3);
@@ -453,7 +453,7 @@ sip_hash24(const uint8_t key[16], const uint8_t *data, size_t len)
 	    last.lo |= ((uint32_t *) end)[0];
   #endif
 	    break;
-#elif BYTE_ORDER == BIG_ENDIAN
+#else
 	    OR_BYTE(3);
 #endif
 	case 3:

test/ruby/test_string.rb

@@ -886,6 +886,8 @@ class TestString < Test::Unit::TestCase
     assert_not_equal(S("hello").hash, S("helLO").hash)
     bug4104 = '[ruby-core:33500]'
     assert_not_equal(S("a").hash, S("a\0").hash, bug4104)
+    bug9172 = '[ruby-core:58658] [Bug #9172]'
+    assert_not_equal(S("sub-setter").hash, S("discover").hash, bug9172)
   end
 
   def test_hash_random