[llvm] [SROA] Preserve inherited alignment when rewriting allocas (PR #222967)

[Yonah Goldberg via llvm-commits]

================
@@ -0,0 +1,115 @@
+; RUN: opt -data-layout="e-p:64:64-i64:64-n32:64-S128" -passes='sroa<aggregate-to-vector>' -S %s | FileCheck %s --check-prefixes=COMMON,INHERIT
----------------
YonahGoldberg wrote:

I think this needs to be a phase ordering test in llvm/test/transforms/PhaseOrdering. SROA tests should only run SROA.

https://github.com/llvm/llvm-project/pull/222967