diff options
| author | Devang Patel <dpatel@apple.com> | 2011-07-07 00:14:27 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2011-07-07 00:14:27 +0000 |
| commit | 7986289a9cc99b45941adf98c64e6f3dbbc917cc (patch) | |
| tree | 39d4805886c0b4d0e87f08630b3e1a47939bd715 | |
| parent | 94ca42ff0407d71bacc41de4032d8dbe6358d33d (diff) | |
Add DEBUG messages.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134572 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 0c23e4af97..99d27e4c9c 100644 --- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -1885,8 +1885,12 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) { if (Prev->isDebugValue()) { // Coalesce identical entries at the end of History. if (History.size() >= 2 && - Prev->isIdenticalTo(History[History.size() - 2])) + Prev->isIdenticalTo(History[History.size() - 2])) { + DEBUG(dbgs() << "Coalesce identical DBG_VALUE entries:\n" + << "\t" << *Prev + << "\t" << *History[History.size() - 2] << "\n"); History.pop_back(); + } // Terminate old register assignments that don't reach MI; MachineFunction::const_iterator PrevMBB = Prev->getParent(); @@ -1896,9 +1900,12 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) { // its basic block. MachineBasicBlock::const_iterator LastMI = PrevMBB->getLastNonDebugInstr(); - if (LastMI == PrevMBB->end()) + if (LastMI == PrevMBB->end()) { // Drop DBG_VALUE for empty range. + DEBUG(dbgs() << "Drop DBG_VALUE for empty range:\n" + << "\t" << *Prev << "\n"); History.pop_back(); + } else { // Terminate after LastMI. History.push_back(LastMI); |