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-rw-r--r--include/llvm/CodeGen/AsmPrinter.h4
-rw-r--r--include/llvm/CodeGen/DwarfWriter.h10
-rw-r--r--lib/CodeGen/AsmPrinter/AsmPrinter.cpp21
-rw-r--r--lib/CodeGen/AsmPrinter/DwarfDebug.cpp36
-rw-r--r--lib/CodeGen/AsmPrinter/DwarfDebug.h8
-rw-r--r--lib/CodeGen/AsmPrinter/DwarfWriter.cpp17
6 files changed, 50 insertions, 46 deletions
diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h
index ffeb44da7b..2cd477e806 100644
--- a/include/llvm/CodeGen/AsmPrinter.h
+++ b/include/llvm/CodeGen/AsmPrinter.h
@@ -47,6 +47,7 @@ namespace llvm {
class MCSection;
class MCStreamer;
class MCSymbol;
+ class MDNode;
class DwarfWriter;
class Mangler;
class MCAsmInfo;
@@ -137,6 +138,9 @@ namespace llvm {
mutable unsigned Counter;
mutable unsigned SetCounter;
+ // Private state for processDebugLoc()
+ mutable const MDNode *PrevDLT;
+
protected:
explicit AsmPrinter(formatted_raw_ostream &o, TargetMachine &TM,
MCStreamer &Streamer);
diff --git a/include/llvm/CodeGen/DwarfWriter.h b/include/llvm/CodeGen/DwarfWriter.h
index 494400ee2c..3c7f8024d9 100644
--- a/include/llvm/CodeGen/DwarfWriter.h
+++ b/include/llvm/CodeGen/DwarfWriter.h
@@ -83,11 +83,19 @@ public:
///
void EndFunction(const MachineFunction *MF);
+ /// RecordSourceLine - Register a source line with debug info. Returns the
+ /// unique label that was emitted and which provides correspondence to
+ /// the source line list.
+ MCSymbol *RecordSourceLine(unsigned Line, unsigned Col, MDNode *Scope);
+
+ /// getRecordSourceLineCount - Count source lines.
+ unsigned getRecordSourceLineCount();
+
/// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should
/// be emitted.
bool ShouldEmitDwarfDebug() const;
- void BeginScope(const MachineInstr *MI);
+ void BeginScope(const MachineInstr *MI, MCSymbol *Label);
void EndScope(const MachineInstr *MI);
};
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 7601199488..1d4f7f7ae6 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -62,7 +62,7 @@ AsmPrinter::AsmPrinter(formatted_raw_ostream &o, TargetMachine &tm,
TM(tm), MAI(tm.getMCAsmInfo()), TRI(tm.getRegisterInfo()),
OutContext(Streamer.getContext()),
OutStreamer(Streamer),
- LastMI(0), LastFn(0), Counter(~0U), SetCounter(0) {
+ LastMI(0), LastFn(0), Counter(~0U), SetCounter(0), PrevDLT(NULL) {
DW = 0; MMI = 0;
VerboseAsm = Streamer.isVerboseAsm();
}
@@ -1337,12 +1337,25 @@ void AsmPrinter::processDebugLoc(const MachineInstr *MI,
if (!MAI || !DW || !MAI->doesSupportDebugInformation()
|| !DW->ShouldEmitDwarfDebug())
return;
+ if (MI->getOpcode() == TargetOpcode::DBG_VALUE)
+ return;
+ DebugLoc DL = MI->getDebugLoc();
+ if (DL.isUnknown())
+ return;
+ DILocation CurDLT = MF->getDILocation(DL);
+ if (!CurDLT.getScope().Verify())
+ return;
- if (!BeforePrintingInsn)
+ if (!BeforePrintingInsn) {
// After printing instruction
DW->EndScope(MI);
- else
- DW->BeginScope(MI);
+ } else if (CurDLT.getNode() != PrevDLT) {
+ MCSymbol *L = DW->RecordSourceLine(CurDLT.getLineNumber(),
+ CurDLT.getColumnNumber(),
+ CurDLT.getScope().getNode());
+ DW->BeginScope(MI, L);
+ PrevDLT = CurDLT.getNode();
+ }
}
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 8861699f4b..e2421eb070 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -296,7 +296,7 @@ DwarfDebug::DwarfDebug(raw_ostream &OS, AsmPrinter *A, const MCAsmInfo *T)
: DwarfPrinter(OS, A, T), ModuleCU(0),
AbbreviationsSet(InitAbbreviationsSetSize), Abbreviations(),
DIEValues(), SectionSourceLines(), didInitial(false), shouldEmit(false),
- CurrentFnDbgScope(0), PrevDILoc(0), DebugTimer(0) {
+ CurrentFnDbgScope(0), DebugTimer(0) {
NextStringPoolNumber = 0;
if (TimePassesIsEnabled)
DebugTimer = new Timer("Dwarf Debug Writer");
@@ -2036,49 +2036,19 @@ void DwarfDebug::collectVariableInfo() {
}
}
-/// beginScope - Process beginning of a scope.
-void DwarfDebug::beginScope(const MachineInstr *MI) {
- if (MI->getOpcode() == TargetOpcode::DBG_VALUE)
- return;
-
- DebugLoc DL = MI->getDebugLoc();
- if (DL.isUnknown())
- return;
- DILocation DILoc = MF->getDILocation(DL);
- if (!DILoc.getScope().Verify())
- return;
-
- if(DILoc.getNode() == PrevDILoc)
- return;
-
+/// beginScope - Process beginning of a scope starting at Label.
+void DwarfDebug::beginScope(const MachineInstr *MI, MCSymbol *Label) {
InsnToDbgScopeMapTy::iterator I = DbgScopeBeginMap.find(MI);
if (I == DbgScopeBeginMap.end())
return;
-
- MCSymbol *Label = recordSourceLine(DILoc.getLineNumber(),
- DILoc.getColumnNumber(),
- DILoc.getScope().getNode());
-
ScopeVector &SD = I->second;
for (ScopeVector::iterator SDI = SD.begin(), SDE = SD.end();
SDI != SDE; ++SDI)
(*SDI)->setStartLabel(Label);
-
- PrevDILoc = DILoc.getNode();
}
/// endScope - Process end of a scope.
void DwarfDebug::endScope(const MachineInstr *MI) {
- if (MI->getOpcode() == TargetOpcode::DBG_VALUE)
- return;
-
- DebugLoc DL = MI->getDebugLoc();
- if (DL.isUnknown())
- return;
- DILocation DILoc = MF->getDILocation(DL);
- if (!DILoc.getScope().Verify())
- return;
-
InsnToDbgScopeMapTy::iterator I = DbgScopeEndMap.find(MI);
if (I == DbgScopeEndMap.end())
return;
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 4a29091128..d173f322b6 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -184,10 +184,6 @@ class DwarfDebug : public DwarfPrinter {
/// function.
DenseMap<CompileUnit *, unsigned> CompileUnitOffsets;
- /// Previous instruction's location information. This is used to determine
- /// label location to indicate scope boundries in dwarf debug info.
- mutable const MDNode *PrevDILoc;
-
/// DebugTimer - Timer for the Dwarf debug writer.
Timer *DebugTimer;
@@ -546,8 +542,8 @@ public:
/// collectVariableInfo - Populate DbgScope entries with variables' info.
void collectVariableInfo();
- /// beginScope - Process beginning of a scope.
- void beginScope(const MachineInstr *MI);
+ /// beginScope - Process beginning of a scope starting at Label.
+ void beginScope(const MachineInstr *MI, MCSymbol *Label);
/// endScope - Prcess end of a scope.
void endScope(const MachineInstr *MI);
diff --git a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
index a2d7ab1224..9fd4c44785 100644
--- a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
@@ -73,14 +73,27 @@ void DwarfWriter::EndFunction(const MachineFunction *MF) {
MMI->EndFunction();
}
+/// RecordSourceLine - Register a source line with debug info. Returns the
+/// unique label that was emitted and which provides correspondence to
+/// the source line list.
+MCSymbol *DwarfWriter::RecordSourceLine(unsigned Line, unsigned Col,
+ MDNode *Scope) {
+ return DD->recordSourceLine(Line, Col, Scope);
+}
+
+/// getRecordSourceLineCount - Count source lines.
+unsigned DwarfWriter::getRecordSourceLineCount() {
+ return DD->getSourceLineCount();
+}
+
/// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should
/// be emitted.
bool DwarfWriter::ShouldEmitDwarfDebug() const {
return DD && DD->ShouldEmitDwarfDebug();
}
-void DwarfWriter::BeginScope(const MachineInstr *MI) {
- DD->beginScope(MI);
+void DwarfWriter::BeginScope(const MachineInstr *MI, MCSymbol *L) {
+ DD->beginScope(MI, L);
}
void DwarfWriter::EndScope(const MachineInstr *MI) {
DD->endScope(MI);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-07-02 13:41:47 +0000