vendor/llvm-project/llvmorg-11-init-20887-g2e10b7a39b9vendor/llvm-project/master

1 files changed, 17 insertions, 0 deletions

diff --git a/llvm/lib/Analysis/MemoryLocation.cpp b/llvm/lib/Analysis/MemoryLocation.cpp
index 103cdea148e5e..4c31d6786ed8e 100644
--- a/llvm/lib/Analysis/MemoryLocation.cpp
+++ b/llvm/lib/Analysis/MemoryLocation.cpp
@@ -83,6 +83,23 @@ MemoryLocation MemoryLocation::get(const AtomicRMWInst *RMWI) {
                         AATags);
 }
 
+Optional<MemoryLocation> MemoryLocation::getOrNone(const Instruction *Inst) {
+  switch (Inst->getOpcode()) {
+  case Instruction::Load:
+    return get(cast<LoadInst>(Inst));
+  case Instruction::Store:
+    return get(cast<StoreInst>(Inst));
+  case Instruction::VAArg:
+    return get(cast<VAArgInst>(Inst));
+  case Instruction::AtomicCmpXchg:
+    return get(cast<AtomicCmpXchgInst>(Inst));
+  case Instruction::AtomicRMW:
+    return get(cast<AtomicRMWInst>(Inst));
+  default:
+    return None;
+  }
+}
+
 MemoryLocation MemoryLocation::getForSource(const MemTransferInst *MTI) {
   return getForSource(cast<AnyMemTransferInst>(MTI));
 }