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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2011-10-12 19:51:18 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2011-10-12 19:51:18 +0000 |
| commit | 6700415542121e2cb7d867728046ffa21e402019 (patch) | |
| tree | c45b4afdda68460a0ca4054cd8180fe78c605ab2 /lib/CodeGen/CGCall.cpp | |
| parent | d768150ef57f617c8d9fef48f3c92e8f21698024 (diff) | |
Add returns_twice to functions that are known to return twice. This implements
the same behavior of gcc by keeping the attribute out of the function type.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141803 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGCall.cpp')
| -rw-r--r-- | lib/CodeGen/CGCall.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp index f52abef330..6ae2d0c967 100644 --- a/lib/CodeGen/CGCall.cpp +++ b/lib/CodeGen/CGCall.cpp @@ -729,6 +729,8 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI, // FIXME: handle sseregparm someday... if (TargetDecl) { + if (TargetDecl->hasAttr<ReturnsTwiceAttr>()) + FuncAttrs |= llvm::Attribute::ReturnsTwice; if (TargetDecl->hasAttr<NoThrowAttr>()) FuncAttrs |= llvm::Attribute::NoUnwind; else if (const FunctionDecl *Fn = dyn_cast<FunctionDecl>(TargetDecl)) { |