[llvm-bugs] [Bug 47402] New: llvm.coro.prepare.retcon unsupported under new pass manager

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47402

            Bug ID: 47402
           Summary: llvm.coro.prepare.retcon unsupported 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: htmldeveloper at gmail.com, JunMa at linux.alibaba.com,
                    llvm-bugs at lists.llvm.org
            Blocks: 46651

In CoroSplit.cpp, CoroSplitPass::run(), there are a couple of llvm_unreachables
saying that llvm.coro.prepare.retcon is unsupported.

A couple tests in llvm/test/Transforms/Coroutines fail with -enable-new-pm set
to true because of this.


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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