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author | dim <dim@FreeBSD.org> | 2013-06-10 20:45:12 +0000 |
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committer | dim <dim@FreeBSD.org> | 2013-06-10 20:45:12 +0000 |
commit | ea266cad53e3d49771fa38103913d3ec7a166694 (patch) | |
tree | 8f7776b7310bebaf415ac5b69e46e9f928c37144 /lib/CodeGen/CGCXXABI.h | |
parent | c72c57c9e9b69944e3e009cd5e209634839581d3 (diff) | |
download | FreeBSD-src-ea266cad53e3d49771fa38103913d3ec7a166694.zip FreeBSD-src-ea266cad53e3d49771fa38103913d3ec7a166694.tar.gz |
Vendor import of clang tags/RELEASE_33/final r183502 (effectively, 3.3
release):
http://llvm.org/svn/llvm-project/cfe/tags/RELEASE_33/final@183502
Diffstat (limited to 'lib/CodeGen/CGCXXABI.h')
-rw-r--r-- | lib/CodeGen/CGCXXABI.h | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/lib/CodeGen/CGCXXABI.h b/lib/CodeGen/CGCXXABI.h index 702e59b..1e4da63 100644 --- a/lib/CodeGen/CGCXXABI.h +++ b/lib/CodeGen/CGCXXABI.h @@ -101,6 +101,27 @@ public: /// kinds that the ABI says returns 'this'. virtual bool HasThisReturn(GlobalDecl GD) const { return false; } + /// Returns true if the given record type should be returned indirectly. + virtual bool isReturnTypeIndirect(const CXXRecordDecl *RD) const = 0; + + /// Specify how one should pass an argument of a record type. + enum RecordArgABI { + /// Pass it using the normal C aggregate rules for the ABI, potentially + /// introducing extra copies and passing some or all of it in registers. + RAA_Default = 0, + + /// Pass it on the stack using its defined layout. The argument must be + /// evaluated directly into the correct stack position in the arguments area, + /// and the call machinery must not move it or introduce extra copies. + RAA_DirectInMemory, + + /// Pass it as a pointer to temporary memory. + RAA_Indirect + }; + + /// Returns how an argument of the given record type should be passed. + virtual RecordArgABI getRecordArgABI(const CXXRecordDecl *RD) const = 0; + /// Find the LLVM type used to represent the given member pointer /// type. virtual llvm::Type * @@ -330,8 +351,27 @@ public: /// /// \param dtor - a function taking a single pointer argument /// \param addr - a pointer to pass to the destructor function. - virtual void registerGlobalDtor(CodeGenFunction &CGF, llvm::Constant *dtor, - llvm::Constant *addr); + virtual void registerGlobalDtor(CodeGenFunction &CGF, const VarDecl &D, + llvm::Constant *dtor, llvm::Constant *addr); + + /*************************** thread_local initialization ********************/ + + /// Emits ABI-required functions necessary to initialize thread_local + /// variables in this translation unit. + /// + /// \param Decls The thread_local declarations in this translation unit. + /// \param InitFunc If this translation unit contains any non-constant + /// initialization or non-trivial destruction for thread_local + /// variables, a function to perform the initialization. Otherwise, 0. + virtual void EmitThreadLocalInitFuncs( + llvm::ArrayRef<std::pair<const VarDecl *, llvm::GlobalVariable *> > Decls, + llvm::Function *InitFunc); + + /// Emit a reference to a non-local thread_local variable (including + /// triggering the initialization of all thread_local variables in its + /// translation unit). + virtual LValue EmitThreadLocalDeclRefExpr(CodeGenFunction &CGF, + const DeclRefExpr *DRE); }; // Create an instance of a C++ ABI class: |