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Summary:
This is a redo of D60914.
The objective is to not invalidate AAManager, which is stateless, unless
there is an explicit invalidate in one of the AAResults.
To achieve this, this patch adds an API to PAC, to check precisely this:
is this analysis not invalidated explicitly == is this analysis not abandoned == is this analysis stateless, so preserved without explicitly being marked as preserved by everyone
Reviewers: chandlerc
Subscribers: mehdi_amini, jlebar, george.burgess.iv, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61284
llvm-svn: 359622
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Triggers use-after-free.
llvm-svn: 359055
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Summary:
AAResults should not invalidate AAManager.
Update tests.
Reviewers: chandlerc
Subscribers: mehdi_amini, jlebar, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60914
llvm-svn: 359014
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mark it as never invalidated in the new PM.
The old PM already required this to work, and after a discussion with
Hal this seems to really be the only sensible answer. The cache
gracefully degrades as the IR is mutated, and most things which do this
should already be incrementally updating the cache.
This gets rid of a bunch of logic preserving and testing the
invalidation of this analysis.
llvm-svn: 292039
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analysis handles become invalid.
Add a test case for its invalidation logic.
llvm-svn: 290620
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