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| author | Daniel Berlin <dberlin@gcc.gnu.org> | 2007-06-11 18:02:15 +0000 |
|---|---|---|
| committer | Daniel Berlin <dberlin@gcc.gnu.org> | 2007-06-11 18:02:15 +0000 |
| commit | 6fb5fa3cbc0d78cf9f4ff7cac5e1d8af1e65c5bb (patch) | |
| tree | fdb9e9f8a0700a2713dc690fed1a2cf20dae8392 /gcc/sbitmap.c | |
| parent | a91d32a4a65d54cccf639a1541417e39cb7b7deb (diff) | |
| download | gcc-6fb5fa3cbc0d78cf9f4ff7cac5e1d8af1e65c5bb.zip gcc-6fb5fa3cbc0d78cf9f4ff7cac5e1d8af1e65c5bb.tar.gz gcc-6fb5fa3cbc0d78cf9f4ff7cac5e1d8af1e65c5bb.tar.bz2 | |
Merge dataflow branch into mainline
From-SVN: r125624
Diffstat (limited to 'gcc/sbitmap.c')
| -rw-r--r-- | gcc/sbitmap.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/gcc/sbitmap.c b/gcc/sbitmap.c index a25bff4b..65a4686 100644 --- a/gcc/sbitmap.c +++ b/gcc/sbitmap.c @@ -1,5 +1,6 @@ /* Simple bitmaps. - Copyright (C) 1999, 2000, 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2002, 2003, 2004, 2006, 2007 + Free Software Foundation, Inc. This file is part of GCC. @@ -262,6 +263,19 @@ sbitmap_equal (sbitmap a, sbitmap b) return !memcmp (a->elms, b->elms, sizeof (SBITMAP_ELT_TYPE) * a->size); } +/* Return true if the bitmap is empty. */ + +bool +sbitmap_empty_p (sbitmap bmap) +{ + unsigned int i; + for (i=0; i<bmap->size; i++) + if (bmap->elms[i]) + return false; + + return true; +} + /* Zero all elements in a bitmap. */ void |