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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-08-24 23:29:28 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-08-24 23:29:28 +0000 |
| commit | 1144af3c9b4da48cd581156e05b24261c8de366a (patch) | |
| tree | 49da576a97bfdab702528643450798baa54c790f /lib/Support | |
| parent | cac59d8ae815596f4f6b77d1a5414c0591168ea5 (diff) | |
| download | llvm-1144af3c9b4da48cd581156e05b24261c8de366a.tar.gz llvm-1144af3c9b4da48cd581156e05b24261c8de366a.tar.bz2 llvm-1144af3c9b4da48cd581156e05b24261c8de366a.tar.xz | |
Fix integer undefined behavior due to signed left shift overflow in LLVM.
Reviewed offline by chandlerc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162623 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
| -rw-r--r-- | lib/Support/regexec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Support/regexec.c b/lib/Support/regexec.c index 007861675b..bd5e72d4c5 100644 --- a/lib/Support/regexec.c +++ b/lib/Support/regexec.c @@ -69,7 +69,7 @@ #define SETUP(v) ((v) = 0) #define onestate long #define INIT(o, n) ((o) = (unsigned long)1 << (n)) -#define INC(o) ((o) <<= 1) +#define INC(o) ((o) = (unsigned long)(o) << 1) #define ISSTATEIN(v, o) (((v) & (o)) != 0) /* some abbreviations; note that some of these know variable names! */ /* do "if I'm here, I can also be there" etc without branches */ |