From a98d46f2430b169ee3222028f589e9d0927845aa Mon Sep 17 00:00:00 2001 From: hubicka Date: Tue, 22 Jun 2010 14:44:24 +0000 Subject: * bitmap.c (bitmap_clear_bit): Micro optimize. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161189 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/bitmap.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'gcc/bitmap.c') diff --git a/gcc/bitmap.c b/gcc/bitmap.c index aeaf2ea00e1..f2fd2bdb510 100644 --- a/gcc/bitmap.c +++ b/gcc/bitmap.c @@ -624,11 +624,13 @@ bitmap_clear_bit (bitmap head, int bit) BITMAP_WORD bit_val = ((BITMAP_WORD) 1) << bit_num; bool res = (ptr->bits[word_num] & bit_val) != 0; if (res) - ptr->bits[word_num] &= ~bit_val; - - /* If we cleared the entire word, free up the element. */ - if (bitmap_element_zerop (ptr)) - bitmap_element_free (head, ptr); + { + ptr->bits[word_num] &= ~bit_val; + /* If we cleared the entire word, free up the element. */ + if (!ptr->bits[word_num] + && bitmap_element_zerop (ptr)) + bitmap_element_free (head, ptr); + } return res; } -- cgit v1.2.1