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Refine DebugLoc per review comments.

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llvm-svn: 63132
This commit is contained in:
Evan Cheng 2009-01-27 21:15:07 +00:00
parent 0400e83ed8
commit 3330206ff6
3 changed files with 22 additions and 19 deletions
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20
include/llvm/CodeGen/DebugLoc.h
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@ -33,16 +33,21 @@ namespace llvm {
unsigned Idx;
public:
DebugLoc() : Idx(~0U) {}
DebugLoc() : Idx(~0U) {} // Defaults to invalid.
static DebugLoc getNoDebugLoc() { DebugLoc L; L.Idx = 0; return L; }
static DebugLoc getUnknownLoc() { DebugLoc L; L.Idx = 0; return L; }
static DebugLoc get(unsigned idx) { DebugLoc L; L.Idx = idx; return L; }
bool isInvalid() { return Idx == ~0U; }
bool isUnknown() { return Idx == 0; }
// isInvalid - Return true if the DebugLoc is invalid.
bool isInvalid() const { return Idx == ~0U; }
// isUnknown - Return true if there is no debug info for the SDNode /
// MachineInstr.
bool isUnknown() const { return Idx == 0; }
};
struct DebugLocTupleDenseMapInfo {
// Partially specialize DenseMapInfo for DebugLocTyple.
template<> struct DenseMapInfo<DebugLocTuple> {
static inline DebugLocTuple getEmptyKey() {
return DebugLocTuple(~0U, ~0U, ~0U);
}
@ -63,9 +68,6 @@ namespace llvm {
static bool isPod() { return true; }
};
typedef DenseMap<DebugLocTuple, unsigned, DebugLocTupleDenseMapInfo>
DebugIdMapType;
/// DebugLocTracker - This class tracks debug location information.
///
struct DebugLocTracker {
@ -75,7 +77,7 @@ namespace llvm {
// DebugIdsMap - This maps DebugLocTuple's to indices into
// DebugLocations vector.
DebugIdMapType DebugIdMap;
DenseMap<DebugLocTuple, unsigned> DebugIdMap;
DebugLocTracker() {}

8
include/llvm/CodeGen/MachineFunction.h
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@ -311,10 +311,10 @@ public:
// Debug location.
//
/// lookUpDebugLocId - Look up the DebugLocTuple index with the given
/// source file, line, and column. It may add a new filename and / or
/// a new DebugLocTuple.
unsigned lookUpDebugLocId(unsigned Src, unsigned Line, unsigned Col);
/// getOrCreateDebugLocID - Look up the DebugLocTuple index with the given
/// source file, line, and column. If none currently exists, create add a new
/// new DebugLocTuple and insert it into the DebugIdMap.
unsigned getOrCreateDebugLocID(unsigned Src, unsigned Line, unsigned Col);
};
//===--------------------------------------------------------------------===//

13
lib/CodeGen/MachineFunction.cpp
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@ -378,13 +378,14 @@ MachineFunction& MachineFunction::get(const Function *F)
return *mc;
}
/// lookUpDebugLocId - Look up the DebugLocTuple index with the given
/// source file, line, and column. It may add a new filename and / or
/// a new DebugLocTuple.
unsigned MachineFunction::lookUpDebugLocId(unsigned Src, unsigned Line,
unsigned Col) {
/// getOrCreateDebugLocID - Look up the DebugLocTuple index with the given
/// source file, line, and column. If none currently exists, create add a new
/// new DebugLocTuple and insert it into the DebugIdMap.
unsigned MachineFunction::getOrCreateDebugLocID(unsigned Src, unsigned Line,
unsigned Col) {
struct DebugLocTuple Tuple(Src, Line, Col);
DebugIdMapType::iterator II = DebugLocInfo.DebugIdMap.find(Tuple);
DenseMap<DebugLocTuple, unsigned>::iterator II
= DebugLocInfo.DebugIdMap.find(Tuple);
if (II != DebugLocInfo.DebugIdMap.end())
return II->second;
// Add a new tuple.