diff options
| -rw-r--r-- | llvm/lib/Transforms/Utils/Local.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index e75127f77e8..7573fc39b9d 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -1486,6 +1486,11 @@ void llvm::replaceDbgValueForAlloca(AllocaInst *AI, Value *NewAllocaAddress, } void llvm::salvageDebugInfo(Instruction &I) { + // This function is hot. An early check to determine whether the instruction + // has any metadata to save allows it to return earlier on average. + if (!I.isUsedByMetadata()) + return; + SmallVector<DbgInfoIntrinsic *, 1> DbgUsers; findDbgUsers(DbgUsers, &I); if (DbgUsers.empty()) |
