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Factor code out into a helper function, shouldUseExceptionTablesForObjCExceptions. 

llvm-svn: 126601
This commit is contained in:
Anders Carlsson 2011-02-28 00:44:51 +00:00
parent 30db828ce7
commit 246ff3f19f
1 changed files with 20 additions and 11 deletions
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31
clang/lib/Driver/Tools.cpp
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@ -762,6 +762,24 @@ void Clang::AddX86TargetArgs(const ArgList &Args,
}
}
static bool
shouldUseExceptionTablesForObjCExceptions(const ArgList &Args,
const llvm::Triple &Triple) {
// We use the zero-cost exception tables for Objective-C if the non-fragile
// ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and
// later.
if (Args.hasArg(options::OPT_fobjc_nonfragile_abi))
return true;
if (Triple.getOS() != llvm::Triple::Darwin)
return false;
return (Triple.getDarwinMajorNumber() >= 9 &&
(Triple.getArch() == llvm::Triple::x86_64 ||
Triple.getArch() == llvm::Triple::arm));
}
static bool needsExceptions(const ArgList &Args, types::ID InputType,
const llvm::Triple &Triple) {
// Handle -fno-exceptions.
@ -777,17 +795,8 @@ static bool needsExceptions(const ArgList &Args, types::ID InputType,
if (types::isCXX(InputType))
return true;
// As do Objective-C non-fragile ABI inputs and all Objective-C inputs on
// x86_64 and ARM after SnowLeopard.
if (types::isObjC(InputType)) {
if (Args.hasArg(options::OPT_fobjc_nonfragile_abi))
return true;
if (Triple.getOS() != llvm::Triple::Darwin)
return false;
return (Triple.getDarwinMajorNumber() >= 9 &&
(Triple.getArch() == llvm::Triple::x86_64 ||
Triple.getArch() == llvm::Triple::arm));
}
if (types::isObjC(InputType))
return shouldUseExceptionTablesForObjCExceptions(Args, Triple);
return false;
}