Chandler Carruth 0b88030fbe [PM] Teach the always inliner in the new pass manager to support
removing fully-dead comdats without removing dead entries in comdats
with live members.

This factors the core logic out of the current inliner's internals to
a reusable utility and leverages that in both places. The factored out
code should also be (minorly) more efficient in cases where we have very
few dead functions or dead comdats to consider.

I've added a test case to cover this behavior of the always inliner.
This is the last significant bug in the new PM's always inliner I've
found (so far).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290557 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-26 23:43:27 +00:00
2016-12-14 21:58:42 +00:00

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