From c208db0752461b055b4b672ae45ba0489263ef08 Mon Sep 17 00:00:00 2001
From: Joshua Haberman <joshua@reverberate.org>
Date: Wed, 8 Jul 2009 11:39:07 -0700
Subject: Pre-compute the hash table mask to avoid doing it in the critical
 path.

---
 upb_table.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'upb_table.c')

diff --git a/upb_table.c b/upb_table.c
index 03fab2f..3bbc7f7 100644
--- a/upb_table.c
+++ b/upb_table.c
@@ -30,6 +30,7 @@ void upb_table_init(struct upb_table *t, uint32_t size, uint16_t entry_size)
   t->size_lg2 = 1;
   while(size >>= 1) t->size_lg2++;
   size_t bytes = upb_table_size(t) * t->entry_size;
+  t->mask = upb_table_size(t) - 1;
   t->entries = malloc(bytes);
   memset(t->entries, 0, bytes);  /* Both tables consider 0's an empty entry. */
 }
-- 
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