diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 3a3eb55..da25343 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -321,7 +321,13 @@ void access_ref::add_offset (const offset_int &min, const offset_int &max) offrng[1] = maxoff; offset_int absmax = wi::abs (max); if (offrng[0] < absmax) - offrng[0] += min; + { + offrng[0] += min; + /* Cap the lower bound at the upper (set to MAXOFF above) + to avoid inadvertently recreating an inverted range. */ + if (offrng[1] < offrng[0]) + offrng[0] = offrng[1]; + } else offrng[0] = 0; } |