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| author | Martin Liska <marxin@gcc.gnu.org> | 2017-10-17 19:17:36 +0000 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2017-10-17 19:17:36 +0000 |
| commit | 8240d00373f62c8c36fc4be2c91178d8c3431f38 (patch) | |
| tree | 6b351b34fde5fc13bcabd361f5ab2aa73c7ad1d1 /gcc/sbitmap.h | |
| parent | a584b03d5f53ce92fbdb49552d7b2ece09d789e7 (diff) | |
| download | gcc-8240d00373f62c8c36fc4be2c91178d8c3431f38.zip gcc-8240d00373f62c8c36fc4be2c91178d8c3431f38.tar.gz gcc-8240d00373f62c8c36fc4be2c91178d8c3431f38.tar.bz2 | |
Add gcc_checking_assert for sbitmap.c.
From-SVN: r253825
Diffstat (limited to 'gcc/sbitmap.h')
| -rw-r--r-- | gcc/sbitmap.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/sbitmap.h b/gcc/sbitmap.h index ff52e93..a5ff068 100644 --- a/gcc/sbitmap.h +++ b/gcc/sbitmap.h @@ -96,10 +96,29 @@ struct simple_bitmap_def /* Return the number of bits in BITMAP. */ #define SBITMAP_SIZE(BITMAP) ((BITMAP)->n_bits) +/* Verify that access at INDEX in bitmap MAP is valid. */ + +static inline void +bitmap_check_index (const_sbitmap map, int index) +{ + gcc_checking_assert (index >= 0); + gcc_checking_assert ((unsigned int)index < map->n_bits); +} + +/* Verify that bitmaps A and B have same size. */ + +static inline void +bitmap_check_sizes (const_sbitmap a, const_sbitmap b) +{ + gcc_checking_assert (a->n_bits == b->n_bits); +} + /* Test if bit number bitno in the bitmap is set. */ static inline SBITMAP_ELT_TYPE bitmap_bit_p (const_sbitmap map, int bitno) { + bitmap_check_index (map, bitno); + size_t i = bitno / SBITMAP_ELT_BITS; unsigned int s = bitno % SBITMAP_ELT_BITS; return (map->elms[i] >> s) & (SBITMAP_ELT_TYPE) 1; @@ -110,6 +129,8 @@ bitmap_bit_p (const_sbitmap map, int bitno) static inline void bitmap_set_bit (sbitmap map, int bitno) { + bitmap_check_index (map, bitno); + map->elms[bitno / SBITMAP_ELT_BITS] |= (SBITMAP_ELT_TYPE) 1 << (bitno) % SBITMAP_ELT_BITS; } @@ -119,6 +140,8 @@ bitmap_set_bit (sbitmap map, int bitno) static inline void bitmap_clear_bit (sbitmap map, int bitno) { + bitmap_check_index (map, bitno); + map->elms[bitno / SBITMAP_ELT_BITS] &= ~((SBITMAP_ELT_TYPE) 1 << (bitno) % SBITMAP_ELT_BITS); } @@ -148,6 +171,8 @@ static inline void bmp_iter_set_init (sbitmap_iterator *i, const_sbitmap bmp, unsigned int min, unsigned *bit_no ATTRIBUTE_UNUSED) { + bitmap_check_index (bmp, min); + i->word_num = min / (unsigned int) SBITMAP_ELT_BITS; i->bit_num = min; i->size = bmp->size; |