diff options
Diffstat (limited to 'gcc/gimple-ssa-store-merging.cc')
| -rw-r--r-- | gcc/gimple-ssa-store-merging.cc | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/gimple-ssa-store-merging.cc b/gcc/gimple-ssa-store-merging.cc index ce56d97..d8075ca 100644 --- a/gcc/gimple-ssa-store-merging.cc +++ b/gcc/gimple-ssa-store-merging.cc @@ -1033,7 +1033,7 @@ find_bswap_or_nop (gimple *stmt, struct symbolic_number *n, bool *bswap, source when rsize < range. */ if (n->range == orig_range /* There're case like 0x300000200 for uint32->uint64 cast, - Don't hanlde this. */ + Don't handle this. */ && n->range == TYPE_PRECISION (n->type) && ((orig_range == 32 && optab_handler (rotl_optab, SImode) != CODE_FOR_nothing) @@ -1043,7 +1043,7 @@ find_bswap_or_nop (gimple *stmt, struct symbolic_number *n, bool *bswap, { uint64_t range = (orig_range / BITS_PER_UNIT) * BITS_PER_MARKER; uint64_t count = (tmp_n & MARKER_MASK) * BITS_PER_MARKER; - /* .i.e. hanlde 0x203040506070800 when lower byte is zero. */ + /* .i.e. handle 0x203040506070800 when lower byte is zero. */ if (!count) { for (uint64_t i = 1; i != range / BITS_PER_MARKER; i++) @@ -1055,6 +1055,8 @@ find_bswap_or_nop (gimple *stmt, struct symbolic_number *n, bool *bswap, if (count <= range / BITS_PER_MARKER) { count = (count + i) * BITS_PER_MARKER % range; + if (!count) + return NULL; break; } else |