diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineDebugify.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineDebugify.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/MachineDebugify.cpp b/llvm/lib/CodeGen/MachineDebugify.cpp index b726a032ca18..adf1b51a950d 100644 --- a/llvm/lib/CodeGen/MachineDebugify.cpp +++ b/llvm/lib/CodeGen/MachineDebugify.cpp @@ -153,10 +153,15 @@ bool applyDebugifyMetadataToMachineFunction(MachineModuleInfo &MMI, NMD->setOperand(Idx, MDNode::get(Ctx, ValueAsMetadata::getConstant( ConstantInt::get(Int32Ty, N)))); }; + auto getDebugifyOperand = [&](unsigned Idx) { + return mdconst::extract<ConstantInt>(NMD->getOperand(Idx)->getOperand(0)) + ->getZExtValue(); + }; // Set number of lines. setDebugifyOperand(0, NextLine - 1); // Set number of variables. - setDebugifyOperand(1, VarSet.size()); + auto OldNumVars = getDebugifyOperand(1); + setDebugifyOperand(1, OldNumVars + VarSet.size()); } return true; @@ -166,6 +171,9 @@ bool applyDebugifyMetadataToMachineFunction(MachineModuleInfo &MMI, /// legacy module pass manager. struct DebugifyMachineModule : public ModulePass { bool runOnModule(Module &M) override { + // We will insert new debugify metadata, so erasing the old one. + assert(!M.getNamedMetadata("llvm.mir.debugify") && + "llvm.mir.debugify metadata already exists! Strip it first"); MachineModuleInfo &MMI = getAnalysis<MachineModuleInfoWrapperPass>().getMMI(); return applyDebugifyMetadata( |