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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 | 9a72741914cb4717b53f5106f6a06fdd446a63ec (patch) | |
| tree | 4d8464e8665615d2185a30ecb0c61c1bdccbb79b /lib | |
| parent | 2e958a4285feeac673a3837ea2fd36bd9402cbcf (diff) | |
| download | external_llvm-9a72741914cb4717b53f5106f6a06fdd446a63ec.zip external_llvm-9a72741914cb4717b53f5106f6a06fdd446a63ec.tar.gz external_llvm-9a72741914cb4717b53f5106f6a06fdd446a63ec.tar.bz2 | |
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')
| -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 4bbc4dd..1d8109e 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(); |