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More complete solution to deleting blocks and debug info.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31129 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey
2006-10-23 14:56:37 +00:00
parent 978b35e502
commit 66ebf0973d
4 changed files with 41 additions and 18 deletions
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lib/CodeGen/MachineDebugInfo.cpp
+9 -10
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@@ -1451,6 +1451,7 @@ MachineDebugInfo::MachineDebugInfo()
, LabelID(0)
, ScopeMap()
, RootScope(NULL)
, DeletedLabelIDs()
, FrameMoves()
{}
MachineDebugInfo::~MachineDebugInfo() {
@@ -1543,20 +1544,18 @@ unsigned MachineDebugInfo::RecordLabel(unsigned Line, unsigned Column,
return ID;
}
static bool LabelUIDComparison(const SourceLineInfo &LI, unsigned UID) {
return LI.getLabelID() < UID;
/// InvalidateLabel - Inhibit use of the specified label # from
/// MachineDebugInfo, for example because the code was deleted.
void MachineDebugInfo::InvalidateLabel(unsigned LabelID) {
DeletedLabelIDs.insert(LabelID);
}
/// RemoveLabelInfo - Remove the specified label # from MachineDebugInfo, for
/// example because the code was deleted.
void MachineDebugInfo::RemoveLabelInfo(unsigned LabelUID) {
std::vector<SourceLineInfo>::iterator I =
std::lower_bound(Lines.begin(), Lines.end(), LabelUID, LabelUIDComparison);
assert(I != Lines.end() && "Didn't find label UID in MachineDebugInfo!");
Lines.erase(I);
/// isLabelValid - Check to make sure the label is still valid before
/// attempting to use.
bool MachineDebugInfo::isLabelValid(unsigned LabelID) {
return DeletedLabelIDs.find(LabelID) == DeletedLabelIDs.end();
}
/// RecordSource - Register a source file with debug info. Returns an source
/// ID.
unsigned MachineDebugInfo::RecordSource(const std::string &Directory,