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/PCHReader.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/PCHReader.cpp')
| -rw-r--r-- | lib/Frontend/PCHReader.cpp | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp index 5bd3c0481a..c220e269c2 100644 --- a/lib/Frontend/PCHReader.cpp +++ b/lib/Frontend/PCHReader.cpp @@ -93,7 +93,7 @@ PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts) { PARSE_LANGOPT_IMPORTANT(Blocks, diag::warn_pch_blocks); PARSE_LANGOPT_BENIGN(EmitAllDecls); PARSE_LANGOPT_IMPORTANT(MathErrno, diag::warn_pch_math_errno); - PARSE_LANGOPT_IMPORTANT(OverflowChecking, diag::warn_pch_overflow_checking); + PARSE_LANGOPT_BENIGN(getSignedOverflowBehavior()); PARSE_LANGOPT_IMPORTANT(HeinousExtensions, diag::warn_pch_heinous_extensions); // FIXME: Most of the options below are benign if the macro wasn't @@ -1915,7 +1915,8 @@ bool PCHReader::ParseLanguageOptions( PARSE_LANGOPT(Blocks); PARSE_LANGOPT(EmitAllDecls); PARSE_LANGOPT(MathErrno); - PARSE_LANGOPT(OverflowChecking); + LangOpts.setSignedOverflowBehavior((LangOptions::SignedOverflowBehaviorTy) + Record[Idx++]); PARSE_LANGOPT(HeinousExtensions); PARSE_LANGOPT(Optimize); PARSE_LANGOPT(OptimizeSize); @@ -1926,13 +1927,10 @@ bool PCHReader::ParseLanguageOptions( PARSE_LANGOPT(AccessControl); PARSE_LANGOPT(CharIsSigned); PARSE_LANGOPT(ShortWChar); - LangOpts.setGCMode((LangOptions::GCMode)Record[Idx]); - ++Idx; - LangOpts.setVisibilityMode((LangOptions::VisibilityMode)Record[Idx]); - ++Idx; + LangOpts.setGCMode((LangOptions::GCMode)Record[Idx++]); + LangOpts.setVisibilityMode((LangOptions::VisibilityMode)Record[Idx++]); LangOpts.setStackProtectorMode((LangOptions::StackProtectorMode) - Record[Idx]); - ++Idx; + Record[Idx++]); PARSE_LANGOPT(InstantiationDepth); PARSE_LANGOPT(OpenCL); PARSE_LANGOPT(CatchUndefined); |