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| author | Richard Guenther <rguenther@suse.de> | 2007-11-09 14:01:33 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2007-11-09 14:01:33 +0000 |
| commit | 76e910c6b72b46e017d7be9a6494113ebae72f85 (patch) | |
| tree | d8b32d4da8ab288343c7d289a01fb22089dced27 /gcc/bitmap.h | |
| parent | de266950570fd88e4e205bfb87bcbd7ba89b5c27 (diff) | |
| download | gcc-76e910c6b72b46e017d7be9a6494113ebae72f85.zip gcc-76e910c6b72b46e017d7be9a6494113ebae72f85.tar.gz gcc-76e910c6b72b46e017d7be9a6494113ebae72f85.tar.bz2 | |
bitmap.h (bitmap_single_bit_set_p): Declare.
2007-11-09 Richard Guenther <rguenther@suse.de>
* bitmap.h (bitmap_single_bit_set_p): Declare.
* bitmap.c (bitmap_single_bit_set_p): New function.
* tree-ssa-alias.c (add_may_alias_for_new_tag): Use it.
(maybe_create_global_var): Use bitmap_empty_p.
From-SVN: r130045
Diffstat (limited to 'gcc/bitmap.h')
| -rw-r--r-- | gcc/bitmap.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/bitmap.h b/gcc/bitmap.h index 66fed85..0b6ed73 100644 --- a/gcc/bitmap.h +++ b/gcc/bitmap.h @@ -107,6 +107,9 @@ extern bool bitmap_intersect_compl_p (const_bitmap, const_bitmap); /* True if MAP is an empty bitmap. */ #define bitmap_empty_p(MAP) (!(MAP)->first) +/* True if the bitmap has only a single bit set. */ +extern bool bitmap_single_bit_set_p (const_bitmap); + /* Count the number of bits set in the bitmap. */ extern unsigned long bitmap_count_bits (const_bitmap); |