Keith Walker ba1598975f Reapplying r281895 (and follow-up r281964) after fixing pr30468. ...

The additional fix is:

When adding debug information to a lowered phi node in mem2reg
check that we have a valid insertion point after the phi for adding
the debug information.

This change addresses the issue in pr30468 where a lowered phi was
added before a catchswitch and no debug information should be added
after the phi in this case.

Differential Revision: https://reviews.llvm.org/D24797

llvm-svn: 282155

2016-09-22 14:13:25 +00:00

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