[llvm-bugs] [Bug 47646] New: LoopStrengthReduce failures under new pass manager

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47646

            Bug ID: 47646
           Summary: LoopStrengthReduce failures under new pass manager
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: aeubanks at google.com
                CC: alina.sbirlea at gmail.com, htmldeveloper at gmail.com,
                    llvm-bugs at lists.llvm.org
            Blocks: 46651

Quite a few tests under llvm/test/Transforms/LoopStrengthReduce fail under NPM
due to the NPM running LCSSA. Adding `-lcssa` before `-loop-reduce` repros
failures under the legacy PM.

e.g. llvm/test/Transforms/LoopStrengthReduce/uglygep.ll
-; RUN: opt < %s -loop-reduce -S | FileCheck %s
+; RUN: opt < %s -lcssa -loop-reduce -S | FileCheck %s


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=46651
[Bug 46651] Fix all opt tests to work under NPM
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