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-rw-r--r--include/llvm/Support/DebugLoc.h114
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diff --git a/include/llvm/Support/DebugLoc.h b/include/llvm/Support/DebugLoc.h
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index 05f31d7a4994..000000000000
--- a/include/llvm/Support/DebugLoc.h
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-//===---- llvm/Support/DebugLoc.h - Debug Location Information --*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines a number of light weight data structures used
-// to describe and track debug location information.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SUPPORT_DEBUGLOC_H
-#define LLVM_SUPPORT_DEBUGLOC_H
-
-#include "llvm/Support/DataTypes.h"
-
-namespace llvm {
- template <typename T> struct DenseMapInfo;
- class MDNode;
- class LLVMContext;
-
- /// DebugLoc - Debug location id. This is carried by Instruction, SDNode,
- /// and MachineInstr to compactly encode file/line/scope information for an
- /// operation.
- class DebugLoc {
- friend struct DenseMapInfo<DebugLoc>;
-
- /// getEmptyKey() - A private constructor that returns an unknown that is
- /// not equal to the tombstone key or DebugLoc().
- static DebugLoc getEmptyKey() {
- DebugLoc DL;
- DL.LineCol = 1;
- return DL;
- }
-
- /// getTombstoneKey() - A private constructor that returns an unknown that
- /// is not equal to the empty key or DebugLoc().
- static DebugLoc getTombstoneKey() {
- DebugLoc DL;
- DL.LineCol = 2;
- return DL;
- }
-
- /// LineCol - This 32-bit value encodes the line and column number for the
- /// location, encoded as 24-bits for line and 8 bits for col. A value of 0
- /// for either means unknown.
- uint32_t LineCol;
-
- /// ScopeIdx - This is an opaque ID# for Scope/InlinedAt information,
- /// decoded by LLVMContext. 0 is unknown.
- int ScopeIdx;
- public:
- DebugLoc() : LineCol(0), ScopeIdx(0) {} // Defaults to unknown.
-
- /// get - Get a new DebugLoc that corresponds to the specified line/col
- /// scope/inline location.
- static DebugLoc get(unsigned Line, unsigned Col,
- MDNode *Scope, MDNode *InlinedAt = 0);
-
- /// getFromDILocation - Translate the DILocation quad into a DebugLoc.
- static DebugLoc getFromDILocation(MDNode *N);
-
- /// getFromDILexicalBlock - Translate the DILexicalBlock into a DebugLoc.
- static DebugLoc getFromDILexicalBlock(MDNode *N);
-
- /// isUnknown - Return true if this is an unknown location.
- bool isUnknown() const { return ScopeIdx == 0; }
-
- unsigned getLine() const {
- return (LineCol << 8) >> 8; // Mask out column.
- }
-
- unsigned getCol() const {
- return LineCol >> 24;
- }
-
- /// getScope - This returns the scope pointer for this DebugLoc, or null if
- /// invalid.
- MDNode *getScope(const LLVMContext &Ctx) const;
-
- /// getInlinedAt - This returns the InlinedAt pointer for this DebugLoc, or
- /// null if invalid or not present.
- MDNode *getInlinedAt(const LLVMContext &Ctx) const;
-
- /// getScopeAndInlinedAt - Return both the Scope and the InlinedAt values.
- void getScopeAndInlinedAt(MDNode *&Scope, MDNode *&IA,
- const LLVMContext &Ctx) const;
-
-
- /// getAsMDNode - This method converts the compressed DebugLoc node into a
- /// DILocation compatible MDNode.
- MDNode *getAsMDNode(const LLVMContext &Ctx) const;
-
- bool operator==(const DebugLoc &DL) const {
- return LineCol == DL.LineCol && ScopeIdx == DL.ScopeIdx;
- }
- bool operator!=(const DebugLoc &DL) const { return !(*this == DL); }
-
- void dump(const LLVMContext &Ctx) const;
- };
-
- template <>
- struct DenseMapInfo<DebugLoc> {
- static DebugLoc getEmptyKey() { return DebugLoc::getEmptyKey(); }
- static DebugLoc getTombstoneKey() { return DebugLoc::getTombstoneKey(); }
- static unsigned getHashValue(const DebugLoc &Key);
- static bool isEqual(DebugLoc LHS, DebugLoc RHS) { return LHS == RHS; }
- };
-} // end namespace llvm
-
-#endif /* LLVM_SUPPORT_DEBUGLOC_H */