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| author | Devang Patel <dpatel@apple.com> | 2009-04-10 18:58:59 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2009-04-10 18:58:59 +0000 |
| commit | 03f0a2fba0e0ad80db4cebb977ec331c493637b7 (patch) | |
| tree | 4d8464e8665615d2185a30ecb0c61c1bdccbb79b /lib/CodeGen/MachineModuleInfo.cpp | |
| parent | ec15bbfd2f8a3667313dcfa0f9a11497ae6732b8 (diff) | |
| download | llvm-03f0a2fba0e0ad80db4cebb977ec331c493637b7.tar.gz llvm-03f0a2fba0e0ad80db4cebb977ec331c493637b7.tar.bz2 llvm-03f0a2fba0e0ad80db4cebb977ec331c493637b7.tar.xz | |
DebugLabelFolder ruthlessly deletes redundant labels. However, sometimes the redundant labels is referenced by debug info somewhere else. This patch provies a way so that dwarf writer can mark labels as used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68813 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineModuleInfo.cpp')
| -rw-r--r-- | lib/CodeGen/MachineModuleInfo.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp index 4bbc4dd985..1d8109eb8d 100644 --- a/lib/CodeGen/MachineModuleInfo.cpp +++ b/lib/CodeGen/MachineModuleInfo.cpp @@ -333,7 +333,7 @@ bool DebugLabelFolder::runOnMachineFunction(MachineFunction &MF) { // Iterate through instructions. for (MachineBasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ) { // Is it a label. - if (I->isDebugLabel()) { + if (I->isDebugLabel() && !MMI->isDbgLabelUsed(I->getOperand(0).getImm())){ // The label ID # is always operand #0, an immediate. unsigned NextLabel = I->getOperand(0).getImm(); |