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CodeGen: simplify EH personality selection (NFC) 

Fix a typo in the comment, reorder to ensure that the ordering matches
across the ObjC/ObjC++ cases.  NFCI.

llvm-svn: 317146
This commit is contained in:
Saleem Abdulrasool 2017-11-02 00:25:40 +00:00
parent 43252d5390
commit 8f6d944721
1 changed files with 9 additions and 8 deletions
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17
clang/lib/CodeGen/CGException.cpp
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@ -165,26 +165,27 @@ static const EHPersonality &getCXXPersonality(const llvm::Triple &T,
static const EHPersonality &getObjCXXPersonality(const llvm::Triple &T,
const LangOptions &L) {
switch (L.ObjCRuntime.getKind()) {
// In the fragile ABI, just use C++ exception handling and hope
// they're not doing crazy exception mixing.
case ObjCRuntime::FragileMacOSX:
return getCXXPersonality(T, L);
// The ObjC personality defers to the C++ personality for non-ObjC
// handlers. Unlike the C++ case, we use the same personality
// function on targets using (backend-driven) SJLJ EH.
case ObjCRuntime::MacOSX:
case ObjCRuntime::iOS:
case ObjCRuntime::WatchOS:
return EHPersonality::NeXT_ObjC;
return getObjCPersonality(T, L);
// In the fragile ABI, just use C++ exception handling and hope
// they're not doing crazy exception mixing.
case ObjCRuntime::FragileMacOSX:
return getCXXPersonality(T, L);
case ObjCRuntime::GNUstep:
return EHPersonality::GNU_ObjCXX;
// The GCC runtime's personality function inherently doesn't support
// mixed EH. Use the C++ personality just to avoid returning null.
// mixed EH. Use the ObjC personality just to avoid returning null.
case ObjCRuntime::GCC:
case ObjCRuntime::ObjFW:
return getObjCPersonality(T, L);
case ObjCRuntime::GNUstep:
return EHPersonality::GNU_ObjCXX;
}
llvm_unreachable("bad runtime kind");
}