[llvm-branch-commits] [llvm] [DLCov] Origin-Tracking: Handle origin-tracking elsewhere in LLVM (PR #143593)

[Stephen Tozer via llvm-branch-commits]

https://github.com/SLTozer created https://github.com/llvm/llvm-project/pull/143593

None

>From c6f681d4eb307ca5f8859b3e4e7605fc2fa8441c Mon Sep 17 00:00:00 2001
From: Stephen Tozer <stephen.tozer at sony.com>
Date: Tue, 10 Jun 2025 20:02:21 +0100
Subject: [PATCH] [DLCov] Origin-Tracking: Handle origin-tracking elsewhere in
 LLVM

---
 llvm/include/llvm/IR/Instruction.h | 2 +-
 llvm/lib/CodeGen/BranchFolding.cpp | 7 +++++++
 llvm/lib/IR/Instruction.cpp        | 2 +-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/llvm/include/llvm/IR/Instruction.h b/llvm/include/llvm/IR/Instruction.h
index 10fc9c1298607..1d22bdb0c3f43 100644
--- a/llvm/include/llvm/IR/Instruction.h
+++ b/llvm/include/llvm/IR/Instruction.h
@@ -507,7 +507,7 @@ class Instruction : public User,
   LLVM_ABI bool extractProfTotalWeight(uint64_t &TotalVal) const;
 
   /// Set the debug location information for this instruction.
-  void setDebugLoc(DebugLoc Loc) { DbgLoc = std::move(Loc); }
+  void setDebugLoc(DebugLoc Loc) { DbgLoc = std::move(Loc).getCopied(); }
 
   /// Return the debug location for this node as a DebugLoc.
   const DebugLoc &getDebugLoc() const { return DbgLoc; }
diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp
index e0f7466ceacff..47fc0ec7549e0 100644
--- a/llvm/lib/CodeGen/BranchFolding.cpp
+++ b/llvm/lib/CodeGen/BranchFolding.cpp
@@ -42,6 +42,7 @@
 #include "llvm/CodeGen/TargetPassConfig.h"
 #include "llvm/CodeGen/TargetRegisterInfo.h"
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
+#include "llvm/Config/llvm-config.h"
 #include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/DebugLoc.h"
 #include "llvm/IR/Function.h"
@@ -933,7 +934,13 @@ bool BranchFolder::TryTailMergeBlocks(MachineBasicBlock *SuccBB,
 
   // Sort by hash value so that blocks with identical end sequences sort
   // together.
+#if LLVM_ENABLE_DEBUGLOC_ORIGIN_TRACKING
+  // If origin-tracking is enabled then MergePotentialElt is no longer a POD
+  // type, so we need std::sort instead.
+  std::sort(MergePotentials.begin(), MergePotentials.end());
+#else
   array_pod_sort(MergePotentials.begin(), MergePotentials.end());
+#endif
 
   // Walk through equivalence sets looking for actual exact matches.
   while (MergePotentials.size() > 1) {
diff --git a/llvm/lib/IR/Instruction.cpp b/llvm/lib/IR/Instruction.cpp
index 109d516c61b7c..123bc7ecce01a 100644
--- a/llvm/lib/IR/Instruction.cpp
+++ b/llvm/lib/IR/Instruction.cpp
@@ -1375,7 +1375,7 @@ void Instruction::copyMetadata(const Instruction &SrcInst,
       setMetadata(MD.first, MD.second);
   }
   if (WL.empty() || WLS.count(LLVMContext::MD_dbg))
-    setDebugLoc(SrcInst.getDebugLoc());
+    setDebugLoc(SrcInst.getDebugLoc().getCopied());
 }
 
 Instruction *Instruction::clone() const {