diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUtils.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopUtils.cpp | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUtils.cpp b/llvm/lib/Transforms/Utils/LoopUtils.cpp index 75a755c..c007a59 100644 --- a/llvm/lib/Transforms/Utils/LoopUtils.cpp +++ b/llvm/lib/Transforms/Utils/LoopUtils.cpp @@ -636,15 +636,14 @@ void llvm::deleteDeadLoop(Loop *L, DominatorTree *DT, ScalarEvolution *SE, // Since debug values in the loop have been deleted, inserting an undef // dbg.value truncates the range of any dbg.value before the loop where the // loop used to be. This is particularly important for constant values. - DIBuilder DIB(*ExitBlock->getModule()); Instruction *InsertDbgValueBefore = ExitBlock->getFirstNonPHI(); assert(InsertDbgValueBefore && "There should be a non-PHI instruction in exit block, else these " "instructions will have no parent."); - for (auto *DVI : DeadDebugInst) - DIB.insertDbgValueIntrinsic(UndefValue::get(Builder.getInt32Ty()), - DVI->getVariable(), DVI->getExpression(), - DVI->getDebugLoc(), InsertDbgValueBefore); + for (auto *DVI : DeadDebugInst) { + DVI->setUndef(); + DVI->moveBefore(InsertDbgValueBefore); + } } // Remove the block from the reference counting scheme, so that we can |