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diff --git a/contrib/llvm/tools/clang/lib/CodeGen/TargetInfo.h b/contrib/llvm/tools/clang/lib/CodeGen/TargetInfo.h
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+//===---- TargetInfo.h - Encapsulate target details -------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// These classes wrap the information about a call or function
+// definition used to handle ABI compliancy.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_CODEGEN_TARGETINFO_H
+#define CLANG_CODEGEN_TARGETINFO_H
+
+namespace llvm {
+ class GlobalValue;
+ class Value;
+}
+
+namespace clang {
+ class ABIInfo;
+ class Decl;
+
+ namespace CodeGen {
+ class CodeGenModule;
+ class CodeGenFunction;
+ }
+
+ /// TargetCodeGenInfo - This class organizes various target-specific
+ /// codegeneration issues, like target-specific attributes, builtins and so
+ /// on.
+ class TargetCodeGenInfo {
+ ABIInfo *Info;
+ public:
+ // WARNING: Acquires the ownership of ABIInfo.
+ TargetCodeGenInfo(ABIInfo *info = 0):Info(info) { }
+ virtual ~TargetCodeGenInfo();
+
+ /// getABIInfo() - Returns ABI info helper for the target.
+ const ABIInfo& getABIInfo() const { return *Info; }
+
+ /// SetTargetAttributes - Provides a convenient hook to handle extra
+ /// target-specific attributes for the given global.
+ virtual void SetTargetAttributes(const Decl *D, llvm::GlobalValue *GV,
+ CodeGen::CodeGenModule &M) const { }
+
+ /// Controls whether __builtin_extend_pointer should sign-extend
+ /// pointers to uint64_t or zero-extend them (the default). Has
+ /// no effect for targets:
+ /// - that have 64-bit pointers, or
+ /// - that cannot address through registers larger than pointers, or
+ /// - that implicitly ignore/truncate the top bits when addressing
+ /// through such registers.
+ virtual bool extendPointerWithSExt() const { return false; }
+
+ /// Determines the DWARF register number for the stack pointer, for
+ /// exception-handling purposes. Implements __builtin_dwarf_sp_column.
+ ///
+ /// Returns -1 if the operation is unsupported by this target.
+ virtual int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const {
+ return -1;
+ }
+
+ /// Initializes the given DWARF EH register-size table, a char*.
+ /// Implements __builtin_init_dwarf_reg_size_table.
+ ///
+ /// Returns true if the operation is unsupported by this target.
+ virtual bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF,
+ llvm::Value *Address) const {
+ return true;
+ }
+
+ /// Performs the code-generation required to convert a return
+ /// address as stored by the system into the actual address of the
+ /// next instruction that will be executed.
+ ///
+ /// Used by __builtin_extract_return_addr().
+ virtual llvm::Value *decodeReturnAddress(CodeGen::CodeGenFunction &CGF,
+ llvm::Value *Address) const {
+ return Address;
+ }
+
+ /// Performs the code-generation required to convert the address
+ /// of an instruction into a return address suitable for storage
+ /// by the system in a return slot.
+ ///
+ /// Used by __builtin_frob_return_addr().
+ virtual llvm::Value *encodeReturnAddress(CodeGen::CodeGenFunction &CGF,
+ llvm::Value *Address) const {
+ return Address;
+ }
+ };
+}
+
+#endif // CLANG_CODEGEN_TARGETINFO_H
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