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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 | 3db3bb0032d8ebb6337b9ccbe3da518b15a0b210 (patch) | |
| tree | 530dc6a35c7ed25fc23eb43b6c6e8681314075b3 /llvm/lib/Support/raw_ostream.cpp | |
| parent | ddaaf40d2480b62f26078062d9e8bb1f370ea24f (diff) | |
| download | bcm5719-llvm-3db3bb0032d8ebb6337b9ccbe3da518b15a0b210.tar.gz bcm5719-llvm-3db3bb0032d8ebb6337b9ccbe3da518b15a0b210.zip | |
avoid undef behavior on minint, fixing PR7783.
llvm-svn: 110114
Diffstat (limited to 'llvm/lib/Support/raw_ostream.cpp')
| -rw-r--r-- | llvm/lib/Support/raw_ostream.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Support/raw_ostream.cpp b/llvm/lib/Support/raw_ostream.cpp index 8054ae63688..ac118a91a3f 100644 --- a/llvm/lib/Support/raw_ostream.cpp +++ b/llvm/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)); |
