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| 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 | 51924e517bd2d25faea6ef873db3c59ec4d09bf8 (patch) | |
| tree | 7d971b3e55a000a23d28dac62cc985f20f05be06 /clang/lib/Frontend/PCHReader.cpp | |
| parent | 217e056e409f51bc64a82334e72bed0f14a51270 (diff) | |
| download | bcm5719-llvm-51924e517bd2d25faea6ef873db3c59ec4d09bf8.tar.gz bcm5719-llvm-51924e517bd2d25faea6ef873db3c59ec4d09bf8.zip | |
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).
llvm-svn: 106956
Diffstat (limited to 'clang/lib/Frontend/PCHReader.cpp')
| -rw-r--r-- | clang/lib/Frontend/PCHReader.cpp | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/clang/lib/Frontend/PCHReader.cpp b/clang/lib/Frontend/PCHReader.cpp index 5bd3c0481a0..c220e269c23 100644 --- a/clang/lib/Frontend/PCHReader.cpp +++ b/clang/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); |
