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| author | Chris Lattner <sabre@nondot.org> | 2010-08-03 16:41:24 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-08-03 16:41:24 +0000 |
| commit | e211cd83f088ad462815676bc08b437c123cabed (patch) | |
| tree | 8671b862bccb77efe1313f31de640ba480e0dd79 /lib/Support | |
| parent | 3bababf880bfeaf1bcda7e4f808007621b6bfac8 (diff) | |
| download | llvm-e211cd83f088ad462815676bc08b437c123cabed.tar.gz llvm-e211cd83f088ad462815676bc08b437c123cabed.tar.bz2 llvm-e211cd83f088ad462815676bc08b437c123cabed.tar.xz | |
avoid undef behavior on minint, fixing PR7783.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110114 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
| -rw-r--r-- | lib/Support/raw_ostream.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp index 8054ae6368..ac118a91a3 100644 --- a/lib/Support/raw_ostream.cpp +++ b/lib/Support/raw_ostream.cpp @@ -143,9 +143,10 @@ raw_ostream &raw_ostream::operator<<(unsigned long long N) { } raw_ostream &raw_ostream::operator<<(long long N) { - if (N < 0) { + if (N < 0) { *this << '-'; - N = -N; + // Avoid undefined behavior on INT64_MIN with a cast. + N = -(unsigned long long)N; } return this->operator<<(static_cast<unsigned long long>(N)); |