From 344a3780b2e33f6ca763666c380202b18aab72a3 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Thu, 29 Jul 2021 22:15:26 +0200
Subject: Vendor import of llvm-project main 88e66fa60ae5, the last commit
 before the upstream release/13.x branch was created.

---
 llvm/lib/IR/Metadata.cpp | 31 +++++++++++++++++++++++++------
 1 file changed, 25 insertions(+), 6 deletions(-)

(limited to 'llvm/lib/IR/Metadata.cpp')

diff --git a/llvm/lib/IR/Metadata.cpp b/llvm/lib/IR/Metadata.cpp
index 7ca538995db2..4f87ef537765 100644
--- a/llvm/lib/IR/Metadata.cpp
+++ b/llvm/lib/IR/Metadata.cpp
@@ -195,6 +195,25 @@ bool MetadataTracking::isReplaceable(const Metadata &MD) {
   return ReplaceableMetadataImpl::isReplaceable(MD);
 }
 
+SmallVector<Metadata *> ReplaceableMetadataImpl::getAllArgListUsers() {
+  SmallVector<std::pair<OwnerTy, uint64_t> *> MDUsersWithID;
+  for (auto Pair : UseMap) {
+    OwnerTy Owner = Pair.second.first;
+    if (!Owner.is<Metadata *>())
+      continue;
+    Metadata *OwnerMD = Owner.get<Metadata *>();
+    if (OwnerMD->getMetadataID() == Metadata::DIArgListKind)
+      MDUsersWithID.push_back(&UseMap[Pair.first]);
+  }
+  llvm::sort(MDUsersWithID, [](auto UserA, auto UserB) {
+    return UserA->second < UserB->second;
+  });
+  SmallVector<Metadata *> MDUsers;
+  for (auto UserWithID : MDUsersWithID)
+    MDUsers.push_back(UserWithID->first.get<Metadata *>());
+  return MDUsers;
+}
+
 void ReplaceableMetadataImpl::addRef(void *Ref, OwnerTy Owner) {
   bool WasInserted =
       UseMap.insert(std::make_pair(Ref, std::make_pair(Owner, NextIndex)))
@@ -1400,12 +1419,12 @@ bool Instruction::extractProfMetadata(uint64_t &TrueVal,
 }
 
 bool Instruction::extractProfTotalWeight(uint64_t &TotalVal) const {
-  assert((getOpcode() == Instruction::Br ||
-          getOpcode() == Instruction::Select ||
-          getOpcode() == Instruction::Call ||
-          getOpcode() == Instruction::Invoke ||
-          getOpcode() == Instruction::Switch) &&
-         "Looking for branch weights on something besides branch");
+  assert(
+      (getOpcode() == Instruction::Br || getOpcode() == Instruction::Select ||
+       getOpcode() == Instruction::Call || getOpcode() == Instruction::Invoke ||
+       getOpcode() == Instruction::IndirectBr ||
+       getOpcode() == Instruction::Switch) &&
+      "Looking for branch weights on something besides branch");
 
   TotalVal = 0;
   auto *ProfileData = getMetadata(LLVMContext::MD_prof);
-- 
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