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author | John McCall <rjmccall@apple.com> | 2013-01-25 22:31:03 +0000 |
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committer | John McCall <rjmccall@apple.com> | 2013-01-25 22:31:03 +0000 |
commit | d5617eeafc93209a26b9f88276c88cf997c3a0a7 (patch) | |
tree | 43c9295b24bd0ef8787299fa08681e041ef4697b /include/clang/AST/ASTContext.h | |
parent | b8b2c9da87e7d70a1679db026f40548b3192b705 (diff) | |
download | clang-d5617eeafc93209a26b9f88276c88cf997c3a0a7.tar.gz |
The standard ARM C++ ABI dictates that inline functions are
never key functions. We did not implement that rule for the
iOS ABI, which was driven by what was implemented in gcc-4.2.
However, implement it now for other ARM-based platforms.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173515 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/AST/ASTContext.h')
-rw-r--r-- | include/clang/AST/ASTContext.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/include/clang/AST/ASTContext.h b/include/clang/AST/ASTContext.h index 05f818299b..bf0487198d 100644 --- a/include/clang/AST/ASTContext.h +++ b/include/clang/AST/ASTContext.h @@ -1563,14 +1563,27 @@ public: const ASTRecordLayout & getASTObjCImplementationLayout(const ObjCImplementationDecl *D) const; - /// \brief Get the key function for the given record decl, or NULL if there - /// isn't one. + /// \brief Get our current best idea for the key function of the + /// given record decl, or NULL if there isn't one. /// /// The key function is, according to the Itanium C++ ABI section 5.2.3: + /// ...the first non-pure virtual function that is not inline at the + /// point of class definition. /// - /// ...the first non-pure virtual function that is not inline at the point - /// of class definition. - const CXXMethodDecl *getKeyFunction(const CXXRecordDecl *RD); + /// Other ABIs use the same idea. However, the ARM C++ ABI ignores + /// virtual functions that are defined 'inline', which means that + /// the result of this computation can change. + const CXXMethodDecl *getCurrentKeyFunction(const CXXRecordDecl *RD); + + /// \brief Observe that the given method cannot be a key function. + /// Checks the key-function cache for the method's class and clears it + /// if matches the given declaration. + /// + /// This is used in ABIs where out-of-line definitions marked + /// inline are not considered to be key functions. + /// + /// \param method should be the declaration from the class definition + void setNonKeyFunction(const CXXMethodDecl *method); /// Get the offset of a FieldDecl or IndirectFieldDecl, in bits. uint64_t getFieldOffset(const ValueDecl *FD) const; |