diff options
| author | Chris Lattner <sabre@nondot.org> | 2010-06-26 21:25:03 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-06-26 21:25:03 +0000 |
| commit | a4d71455f0d418e16cc0c5c5aa55a3bad3494aee (patch) | |
| tree | efaf0e10486ac58302fe7c2934c325225e1c7c3f /lib/Frontend/PCHWriter.cpp | |
| parent | e70ffd631179c15d358838464425e3464cf05a98 (diff) | |
Implement support for -fwrapv, rdar://7221421
As part of this, pull together trapv handling into the same enum.
This also add support for NSW multiplies.
This also makes PCH disagreement on overflow behavior silent, since it
really doesn't matter except for warnings and codegen (no macros get
defined etc).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106956 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Frontend/PCHWriter.cpp')
| -rw-r--r-- | lib/Frontend/PCHWriter.cpp | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp index 3c42d474dc..efed0f0a6c 100644 --- a/lib/Frontend/PCHWriter.cpp +++ b/lib/Frontend/PCHWriter.cpp @@ -833,11 +833,8 @@ void PCHWriter::WriteLanguageOptions(const LangOptions &LangOpts) { Record.push_back(LangOpts.MathErrno); // Math functions must respect errno // (modulo the platform support). - Record.push_back(LangOpts.OverflowChecking); // Extension to call a handler function when - // signed integer arithmetic overflows. - - Record.push_back(LangOpts.HeinousExtensions); // Extensions that we really don't like and - // may be ripped out at any time. + Record.push_back(LangOpts.getSignedOverflowBehavior()); + Record.push_back(LangOpts.HeinousExtensions); Record.push_back(LangOpts.Optimize); // Whether __OPTIMIZE__ should be defined. Record.push_back(LangOpts.OptimizeSize); // Whether __OPTIMIZE_SIZE__ should be |