diff options
Diffstat (limited to 'lib/Support/raw_ostream.cpp')
| -rw-r--r-- | lib/Support/raw_ostream.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp index c9cf249500..4927e9a7b9 100644 --- a/lib/Support/raw_ostream.cpp +++ b/lib/Support/raw_ostream.cpp @@ -121,7 +121,8 @@ raw_ostream &raw_ostream::operator<<(unsigned long N) { raw_ostream &raw_ostream::operator<<(long N) { if (N < 0) { *this << '-'; - N = -N; + // Avoid undefined behavior on LONG_MIN with a cast. + N = -(unsigned long)N; } return this->operator<<(static_cast<unsigned long>(N)); |