diff options
Diffstat (limited to 'include/clang/Basic/ABI.h')
| -rw-r--r-- | include/clang/Basic/ABI.h | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/include/clang/Basic/ABI.h b/include/clang/Basic/ABI.h deleted file mode 100644 index 75e9faf..0000000 --- a/include/clang/Basic/ABI.h +++ /dev/null @@ -1,211 +0,0 @@ -//===----- ABI.h - ABI related declarations ---------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -/// -/// \file -/// \brief Enums/classes describing ABI related information about constructors, -/// destructors and thunks. -/// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CLANG_BASIC_ABI_H -#define LLVM_CLANG_BASIC_ABI_H - -#include "llvm/Support/DataTypes.h" -#include <cstring> - -namespace clang { - -/// \brief C++ constructor types. -enum CXXCtorType { - Ctor_Complete, ///< Complete object ctor - Ctor_Base, ///< Base object ctor - Ctor_Comdat, ///< The COMDAT used for ctors - Ctor_CopyingClosure, ///< Copying closure variant of a ctor - Ctor_DefaultClosure, ///< Default closure variant of a ctor -}; - -/// \brief C++ destructor types. -enum CXXDtorType { - Dtor_Deleting, ///< Deleting dtor - Dtor_Complete, ///< Complete object dtor - Dtor_Base, ///< Base object dtor - Dtor_Comdat ///< The COMDAT used for dtors -}; - -/// \brief A return adjustment. -struct ReturnAdjustment { - /// \brief The non-virtual adjustment from the derived object to its - /// nearest virtual base. - int64_t NonVirtual; - - /// \brief Holds the ABI-specific information about the virtual return - /// adjustment, if needed. - union VirtualAdjustment { - // Itanium ABI - struct { - /// \brief The offset (in bytes), relative to the address point - /// of the virtual base class offset. - int64_t VBaseOffsetOffset; - } Itanium; - - // Microsoft ABI - struct { - /// \brief The offset (in bytes) of the vbptr, relative to the beginning - /// of the derived class. - uint32_t VBPtrOffset; - - /// \brief Index of the virtual base in the vbtable. - uint32_t VBIndex; - } Microsoft; - - VirtualAdjustment() { - memset(this, 0, sizeof(*this)); - } - - bool Equals(const VirtualAdjustment &Other) const { - return memcmp(this, &Other, sizeof(Other)) == 0; - } - - bool isEmpty() const { - VirtualAdjustment Zero; - return Equals(Zero); - } - - bool Less(const VirtualAdjustment &RHS) const { - return memcmp(this, &RHS, sizeof(RHS)) < 0; - } - } Virtual; - - ReturnAdjustment() : NonVirtual(0) {} - - bool isEmpty() const { return !NonVirtual && Virtual.isEmpty(); } - - friend bool operator==(const ReturnAdjustment &LHS, - const ReturnAdjustment &RHS) { - return LHS.NonVirtual == RHS.NonVirtual && LHS.Virtual.Equals(RHS.Virtual); - } - - friend bool operator!=(const ReturnAdjustment &LHS, const ReturnAdjustment &RHS) { - return !(LHS == RHS); - } - - friend bool operator<(const ReturnAdjustment &LHS, - const ReturnAdjustment &RHS) { - if (LHS.NonVirtual < RHS.NonVirtual) - return true; - - return LHS.NonVirtual == RHS.NonVirtual && LHS.Virtual.Less(RHS.Virtual); - } -}; - -/// \brief A \c this pointer adjustment. -struct ThisAdjustment { - /// \brief The non-virtual adjustment from the derived object to its - /// nearest virtual base. - int64_t NonVirtual; - - /// \brief Holds the ABI-specific information about the virtual this - /// adjustment, if needed. - union VirtualAdjustment { - // Itanium ABI - struct { - /// \brief The offset (in bytes), relative to the address point, - /// of the virtual call offset. - int64_t VCallOffsetOffset; - } Itanium; - - struct { - /// \brief The offset of the vtordisp (in bytes), relative to the ECX. - int32_t VtordispOffset; - - /// \brief The offset of the vbptr of the derived class (in bytes), - /// relative to the ECX after vtordisp adjustment. - int32_t VBPtrOffset; - - /// \brief The offset (in bytes) of the vbase offset in the vbtable. - int32_t VBOffsetOffset; - } Microsoft; - - VirtualAdjustment() { - memset(this, 0, sizeof(*this)); - } - - bool Equals(const VirtualAdjustment &Other) const { - return memcmp(this, &Other, sizeof(Other)) == 0; - } - - bool isEmpty() const { - VirtualAdjustment Zero; - return Equals(Zero); - } - - bool Less(const VirtualAdjustment &RHS) const { - return memcmp(this, &RHS, sizeof(RHS)) < 0; - } - } Virtual; - - ThisAdjustment() : NonVirtual(0) { } - - bool isEmpty() const { return !NonVirtual && Virtual.isEmpty(); } - - friend bool operator==(const ThisAdjustment &LHS, - const ThisAdjustment &RHS) { - return LHS.NonVirtual == RHS.NonVirtual && LHS.Virtual.Equals(RHS.Virtual); - } - - friend bool operator!=(const ThisAdjustment &LHS, const ThisAdjustment &RHS) { - return !(LHS == RHS); - } - - friend bool operator<(const ThisAdjustment &LHS, - const ThisAdjustment &RHS) { - if (LHS.NonVirtual < RHS.NonVirtual) - return true; - - return LHS.NonVirtual == RHS.NonVirtual && LHS.Virtual.Less(RHS.Virtual); - } -}; - -class CXXMethodDecl; - -/// \brief The \c this pointer adjustment as well as an optional return -/// adjustment for a thunk. -struct ThunkInfo { - /// \brief The \c this pointer adjustment. - ThisAdjustment This; - - /// \brief The return adjustment. - ReturnAdjustment Return; - - /// \brief Holds a pointer to the overridden method this thunk is for, - /// if needed by the ABI to distinguish different thunks with equal - /// adjustments. Otherwise, null. - /// CAUTION: In the unlikely event you need to sort ThunkInfos, consider using - /// an ABI-specific comparator. - const CXXMethodDecl *Method; - - ThunkInfo() : Method(nullptr) { } - - ThunkInfo(const ThisAdjustment &This, const ReturnAdjustment &Return, - const CXXMethodDecl *Method = nullptr) - : This(This), Return(Return), Method(Method) {} - - friend bool operator==(const ThunkInfo &LHS, const ThunkInfo &RHS) { - return LHS.This == RHS.This && LHS.Return == RHS.Return && - LHS.Method == RHS.Method; - } - - bool isEmpty() const { - return This.isEmpty() && Return.isEmpty() && Method == nullptr; - } -}; - -} // end namespace clang - -#endif |
