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Update MSSA for blocks cloned when doing partial unswitching.
Enable additional testing with MSSA.
Resolves PR43641.
llvm-svn: 374850
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This patch enables passing options to SimpleLoopUnswitch via the passes pipeline.
Reviewers: chandlerc, fedor.sergeev, leonardchan, philip.pfaffe
Reviewed By: fedor.sergeev
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D60676
llvm-svn: 358880
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The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
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As it's causing some bot failures (and per request from kbarton).
This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.
llvm-svn: 358546
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Add '-k 1' to 'sort -b' calls in SimpleLoopUnswitch tests, as required
for sort implementation on NetBSD. The '-b' modifier is ineffective
if specified without any key. Per the manpage:
Note that the -b option has no effect unless key fields are specified.
Differential Revision: https://reviews.llvm.org/D55168
llvm-svn: 348097
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We need to control exponential behavior of loop-unswitch so we do not get
run-away compilation.
Suggested solution is to introduce a multiplier for an unswitch cost that
makes cost prohibitive as soon as there are too many candidates and too
many sibling loops (meaning we have already started duplicating loops
by unswitching).
It does solve the currently known problem with compile-time degradation
(PR 39544).
Tests are built on top of a recently implemented CHECK-COUNT-<num>
FileCheck directives.
Reviewed By: chandlerc, mkazantsev
Differential Revision: https://reviews.llvm.org/D54223
llvm-svn: 347097
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