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| author | Richard Sandiford <richard.sandiford@arm.com> | 2015-05-19 07:11:37 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2015-05-19 07:11:37 +0000 |
| commit | 07a737f333f0d4352984664c1ab6d344f6e2c88c (patch) | |
| tree | eb76c88033453d389b51706d4861488d574dcaf2 /gcc/bitmap.c | |
| parent | 72d19505eef64d2d9c37d8aabf1fffb3267d5d0e (diff) | |
| download | gcc-07a737f333f0d4352984664c1ab6d344f6e2c88c.zip gcc-07a737f333f0d4352984664c1ab6d344f6e2c88c.tar.gz gcc-07a737f333f0d4352984664c1ab6d344f6e2c88c.tar.bz2 | |
bitmap.c (bitmap_set_range): Handle count==1 specially.
gcc/
* bitmap.c (bitmap_set_range): Handle count==1 specially.
(bitmap_clear_range): Likewise.
* cfgcleanup.c (mark_effect): Use bitmap_clear_range and
bitmap_set_range unconditionally.
* df-problems.c (df_simulate_one_insn_forwards): Likewise.
* df-scan.c (df_mark_reg): Likewise.
* haifa-sched.c (setup_ref_regs): Likewise.
* sched-rgn.c (update_live_1): Likewise.
From-SVN: r223344
Diffstat (limited to 'gcc/bitmap.c')
| -rw-r--r-- | gcc/bitmap.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/bitmap.c b/gcc/bitmap.c index 66066a6..58f4432 100644 --- a/gcc/bitmap.c +++ b/gcc/bitmap.c @@ -1212,6 +1212,12 @@ bitmap_set_range (bitmap head, unsigned int start, unsigned int count) if (!count) return; + if (count == 1) + { + bitmap_set_bit (head, start); + return; + } + first_index = start / BITMAP_ELEMENT_ALL_BITS; end_bit_plus1 = start + count; last_index = (end_bit_plus1 - 1) / BITMAP_ELEMENT_ALL_BITS; @@ -1311,6 +1317,12 @@ bitmap_clear_range (bitmap head, unsigned int start, unsigned int count) if (!count) return; + if (count == 1) + { + bitmap_clear_bit (head, start); + return; + } + first_index = start / BITMAP_ELEMENT_ALL_BITS; end_bit_plus1 = start + count; last_index = (end_bit_plus1 - 1) / BITMAP_ELEMENT_ALL_BITS; |