Sanjoy Das ab35eb89e2 [LoopUnswitch] Unswitch on conditions feeding into guards ... Summary: This is a straightforward extension of what LoopUnswitch does to branches to guards. That is, we unswitch ``` for (;;) { ... guard(loop_invariant_cond); ... } ``` into ``` if (loop_invariant_cond) { for (;;) { ... // There is no need to emit guard(true) ... } } else { for (;;) { ... guard(false); // SimplifyCFG will clean this up by adding an // unreachable after the guard(false) ... } } ``` Reviewers: majnemer Subscribers: mcrosier, llvm-commits, mzolotukhin Differential Revision: http://reviews.llvm.org/D21725 llvm-svn: 273801		2016-06-26 05:10:45 +00:00
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2006-06-13-SingleEntryPHI.ll
2006-06-27-DeadSwitchCase.ll
2007-05-09-tl.ll
2007-05-09-Unreachable.ll
2007-07-12-ExitDomInfo.ll
2007-07-13-DomInfo.ll
2007-07-18-DomInfo.ll
2007-08-01-Dom.ll
2007-08-01-LCSSA.ll
2007-10-04-DomFrontier.ll
2008-06-02-DomInfo.ll
2008-06-17-DomFrontier.ll
2008-11-03-Invariant.ll
2010-11-18-LCSSA.ll
2011-06-02-CritSwitch.ll
2011-09-26-EHCrash.ll	Remove the ScalarReplAggregates pass	2016-06-15 00:19:09 +00:00
2011-11-18-SimpleSwitch.ll	Have a single way for creating unique value names.	2015-11-22 00:16:24 +00:00
2011-11-18-TwoSwitches-Threshold.ll
2011-11-18-TwoSwitches.ll	Have a single way for creating unique value names.	2015-11-22 00:16:24 +00:00
2012-04-02-IndirectBr.ll
2012-04-30-LoopUnswitch-LPad-Crash.ll
2012-05-20-Phi.ll
2015-06-17-Metadata.ll	[SimlifyCFG] Prevent passes from destroying canonical loop structure, especially for nested loops	2016-03-29 04:08:57 +00:00
2015-09-18-Addrspace.ll
basictest.ll
cleanuppad.ll	[IR] Reformulate LLVM's EH funclet IR	2015-12-12 05:38:55 +00:00
cold-loop.ll
copy-metadata.ll
crash.ll
exponential-behavior.ll	[LoopUnswitch] Avoid exponential behavior	2016-06-25 01:14:19 +00:00
guards.ll	[LoopUnswitch] Unswitch on conditions feeding into guards	2016-06-26 05:10:45 +00:00
infinite-loop.ll	[SimlifyCFG] Prevent passes from destroying canonical loop structure, especially for nested loops	2016-03-29 04:08:57 +00:00
LIV-loop-condtion.ll
msan.ll	Add a missing test.	2016-06-14 21:24:13 +00:00
preserve-analyses.ll
trivial-unswitch.ll