diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/wide-int.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/wide-int.cc b/gcc/wide-int.cc index 906f4ea..a142151 100644 --- a/gcc/wide-int.cc +++ b/gcc/wide-int.cc @@ -2050,6 +2050,10 @@ wi::arshift_large (HOST_WIDE_INT *val, const HOST_WIDE_INT *xval, int wi::clz (const wide_int_ref &x) { + if (x.sign_mask () < 0) + /* The upper bit is set, so there are no leading zeros. */ + return 0; + /* Calculate how many bits there above the highest represented block. */ int count = x.precision - x.len * HOST_BITS_PER_WIDE_INT; @@ -2058,9 +2062,6 @@ wi::clz (const wide_int_ref &x) /* The upper -COUNT bits of HIGH are not part of the value. Clear them out. */ high = (high << -count) >> -count; - else if (x.sign_mask () < 0) - /* The upper bit is set, so there are no leading zeros. */ - return 0; /* We don't need to look below HIGH. Either HIGH is nonzero, or the top bit of the block below is nonzero; clz_hwi is |