https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113726
Bug ID: 113726
Summary: sanitizer reports signed overflow but not underflow
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: jetrull at sbcglobal dot net
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Target Milestone: ---
This code produces both a warning and a sanitizer failure:
long result = std::numeric_limits<long>::max() + 1l;
This code produces only a compiler warning:
long result = std::numeric_limits<long>::min() - 1l;
The Clang sanitizer flags both operations.
This seems to be true for several versions, including 11.4 (my laptop) and
trunk.
https://godbolt.org/z/9nf3hhWsM
