[PATCH] D152934: [LoopIdiom] Preserve alias information for memset_pattern

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


================
Comment at: llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp:1079
+
+  if (SplatValue || isLibFuncEmittable(M, TLI, LibFunc_memset_pattern16)) {
+    AATags  = TheStore->getAAMetadata();
----------------
```
if (!SplatValue && !isLibFuncEmittable(M, TLI, LibFunc_memset_pattern16))
  return Changed;
```


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D152934/new/

https://reviews.llvm.org/D152934