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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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21
lib/CodeGen/DwarfWriter.cpp
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@@ -1755,17 +1755,24 @@ void DwarfWriter::ConstructScope(DebugScope *ParentScope,
// FIXME - Ignore inlined functions for the time being.
if (!Scope->getParent()) continue;
unsigned StartID = Scope->getStartLabelID();
unsigned EndID = Scope->getEndLabelID();
// Throw out scope if block is discarded.
if (StartID && !DebugInfo->isLabelValid(StartID)) continue;
if (EndID && !DebugInfo->isLabelValid(EndID)) continue;
DIE *ScopeDie = new DIE(DW_TAG_lexical_block);
// Add the scope bounds.
if (unsigned StartID = Scope->getStartLabelID()) {
if (StartID) {
ScopeDie->AddLabel(DW_AT_low_pc, DW_FORM_addr,
DWLabel("loc", StartID));
} else {
ScopeDie->AddLabel(DW_AT_low_pc, DW_FORM_addr,
DWLabel("func_begin", SubprogramCount));
}
if (unsigned EndID = Scope->getEndLabelID()) {
if (EndID) {
ScopeDie->AddLabel(DW_AT_high_pc, DW_FORM_addr,
DWLabel("loc", EndID));
} else {
@@ -1975,6 +1982,10 @@ void DwarfWriter::EmitFrameMoves(const char *BaseLabel, unsigned BaseLabelID,
for (unsigned i = 0, N = Moves.size(); i < N; ++i) {
MachineMove *Move = Moves[i];
unsigned LabelID = Move->getLabelID();
// Throw out move if the label is invalid.
if (LabelID && !DebugInfo->isLabelValid(LabelID)) continue;
const MachineLocation &Dst = Move->getDestination();
const MachineLocation &Src = Move->getSource();
@@ -2194,6 +2205,10 @@ void DwarfWriter::EmitDebugLines() const {
// Construct rows of the address, source, line, column matrix.
for (unsigned i = 0, N = LineInfos.size(); i < N; ++i) {
const SourceLineInfo &LineInfo = LineInfos[i];
unsigned LabelID = LineInfo.getLabelID();
// Throw out line info if label is invalid.
if (!DebugInfo->isLabelValid(LabelID)) continue;
if (DwarfVerbose) {
unsigned SourceID = LineInfo.getSourceID();
@@ -2210,7 +2225,7 @@ void DwarfWriter::EmitDebugLines() const {
EmitInt8(0); EOL("Extended Op");
EmitInt8(4 + 1); EOL("Op size");
EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
EmitReference("loc", LineInfo.getLabelID()); EOL("Location label");
EmitReference("loc", LabelID); EOL("Location label");
// If change of source, then switch to the new source.
if (Source != LineInfo.getSourceID()) {