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-rw-r--r--llvm/lib/Analysis/MemoryLocation.cpp17
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));
}