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| author | John McCall <rjmccall@apple.com> | 2010-07-08 06:48:12 +0000 |
|---|---|---|
| committer | John McCall <rjmccall@apple.com> | 2010-07-08 06:48:12 +0000 |
| commit | 9c0c1f333ab8f5a3da055b99ee94778689face17 (patch) | |
| tree | c7233d26e7019e51d692f678c3d023e46e27c3bb /lib/CodeGen/CGCall.cpp | |
| parent | ed8abf18329df67b0abcbb3a10458bd8c1d2a595 (diff) | |
Mark calls to 'throw()' functions as nounwind, and mark the functions nounwind
as well.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107858 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGCall.cpp')
| -rw-r--r-- | lib/CodeGen/CGCall.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp index 0a17e56d72..1632cb3c22 100644 --- a/lib/CodeGen/CGCall.cpp +++ b/lib/CodeGen/CGCall.cpp @@ -684,6 +684,12 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI, if (TargetDecl) { if (TargetDecl->hasAttr<NoThrowAttr>()) FuncAttrs |= llvm::Attribute::NoUnwind; + else if (const FunctionDecl *Fn = dyn_cast<FunctionDecl>(TargetDecl)) { + const FunctionProtoType *FPT = Fn->getType()->getAs<FunctionProtoType>(); + if (FPT && FPT->hasEmptyExceptionSpec()) + FuncAttrs |= llvm::Attribute::NoUnwind; + } + if (TargetDecl->hasAttr<NoReturnAttr>()) FuncAttrs |= llvm::Attribute::NoReturn; if (TargetDecl->hasAttr<ConstAttr>()) |