[llvm] [loop-idiom] Forget outer loop scev when loop-idiom introduces memset… (PR #150916)

[Sushant Gokhale via llvm-commits]

================
@@ -0,0 +1,48 @@
+; REQUIRES: asserts
+; RUN: opt <%s -p "loop(loop-idiom)" -verify-scev -o /dev/null
----------------
sushgokh wrote:

by mistake, pulled this test in AArch64. Will move this out.

https://github.com/llvm/llvm-project/pull/150916