From baa53f625d9a74adc457be948746c67d9eb511e8 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 25 Dec 2017 12:41:52 +0000
Subject: hash.c: prime2

* hash.c (prime2): turned into a uint32_t prime, as the lower
  32bits, non-prime part only was used always.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61473 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

diff --git a/hash.c b/hash.c
index 285f611..4452eee 100644
--- a/hash.c
+++ b/hash.c
@@ -224,7 +224,7 @@ rb_any_hash(VALUE a)
 
 /* Here we two primes with random bit generation.  */
 static const uint64_t prime1 = ((uint64_t)0x2e0bb864 << 32) | 0xe9ea7df5;
-static const uint64_t prime2 = ((uint64_t)0xcdb32970 << 32) | 0x830fcaa1;
+static const uint32_t prime2 = 0x830fcab9;
 
 
 static inline uint64_t
@@ -253,7 +253,7 @@ key64_hash(uint64_t key, uint32_t seed)
 long
 rb_objid_hash(st_index_t index)
 {
-    return (long)key64_hash(rb_hash_start(index), (uint32_t)prime2);
+    return (long)key64_hash(rb_hash_start(index), prime2);
 }
 
 static st_index_t
@@ -290,7 +290,7 @@ rb_ident_hash(st_data_t n)
     }
 #endif
 
-    return (st_index_t)key64_hash(rb_hash_start((st_index_t)n), (uint32_t)prime2);
+    return (st_index_t)key64_hash(rb_hash_start((st_index_t)n), prime2);
 }
 
 static const struct st_hash_type identhash = {
-- 
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