Michael Kuperstein b151a641aa [LoopUnroll] Implement profile-based loop peeling ... This implements PGO-driven loop peeling. The basic idea is that when the average dynamic trip-count of a loop is known, based on PGO, to be low, we can expect a performance win by peeling off the first several iterations of that loop. Unlike unrolling based on a known trip count, or a trip count multiple, this doesn't save us the conditional check and branch on each iteration. However, it does allow us to simplify the straight-line code we get (constant-folding, etc.). This is important given that we know that we will usually only hit this code, and not the actual loop. This is currently disabled by default. Differential Revision: https://reviews.llvm.org/D25963 llvm-svn: 288274		2016-11-30 21:13:57 +00:00
..
AArch64	Reapply "[LoopUnroll] Use the upper bound of the loop trip count to fullly unroll a loop"	2016-10-12 21:29:38 +00:00
AMDGPU	…
PowerPC	[LoopUnroll] Fix a PowerPC test broken by r277524.	2016-08-02 21:43:25 +00:00
X86	…
2004-05-13-DontUnrollTooMuch.ll	…
2005-03-06-BadLoopInfoUpdate.ll	…
2006-08-24-MultiBlockLoop.ll	…
2007-04-16-PhiUpdate.ll	…
2007-05-05-UnrollMiscomp.ll	…
2007-05-09-UnknownTripCount.ll	…
2007-11-05-Crash.ll	…
2011-08-08-PhiUpdate.ll	…
2011-08-09-IVSimplify.ll	…
2011-08-09-PhiUpdate.ll	…
2011-10-01-NoopTrunc.ll	…
2012-04-09-unroll-indirectbr.ll	…
basic.ll	…
convergent.ll	…
ephemeral.ll	…
full-unroll-bad-cost.ll	…
full-unroll-crashers.ll	[LoopUnrollAnalyzer] Fix a bug in UnrolledInstAnalyzer::visitLoad.	2016-06-23 14:31:31 +00:00
full-unroll-heuristics-2.ll	[LoopUnrollAnalyzer] Take into account cost of instructions controlling branches, along with their operands.	2016-05-18 21:20:12 +00:00
full-unroll-heuristics-cmp.ll	[LoopUnrollAnalyzer] Don't treat gep-instructions with simplified offset as simplified.	2016-05-13 01:42:34 +00:00
full-unroll-heuristics-dce.ll	Revert "Revert "[Unroll] Implement a conservative and monotonically increasing cost tracking system during the full unroll heuristic analysis that avoids counting any instruction cost until that instruction becomes "live" through a side-effect or use outside the...""	2016-05-13 21:23:25 +00:00
full-unroll-heuristics-geps.ll	Revert "Revert "[Unroll] Implement a conservative and monotonically increasing cost tracking system during the full unroll heuristic analysis that avoids counting any instruction cost until that instruction becomes "live" through a side-effect or use outside the...""	2016-05-13 21:23:25 +00:00
full-unroll-heuristics-phi-prop.ll	…
full-unroll-heuristics.ll	…
full-unroll-keep-first-exit.ll	[LoopUnroll] Keep the loop test only on the first iteration of max-or-zero loops	2016-10-21 11:08:48 +00:00
high-cost-trip-count-computation.ll	…
ignore-annotation-intrinsic-cost.ll	…
loop-remarks-with-hotness.ll	[LoopUnroll] Include hotness of region in opt remark	2016-07-29 19:29:47 +00:00
loop-remarks.ll	…
partial-unroll-const-bounds.ll	The patch refactors unroll pass.	2016-05-27 23:15:06 +00:00
peel-loop-pgo.ll	[LoopUnroll] Implement profile-based loop peeling	2016-11-30 21:13:57 +00:00
peel-loop.ll	[LoopUnroll] Implement profile-based loop peeling	2016-11-30 21:13:57 +00:00
pr10813.ll	…
pr11361.ll	…
pr14167.ll	…
pr18861.ll	…
pr27157.ll	…
pr28132.ll	[LoopUnroll] Don't crash trying to unroll loop with EH pad exit	2016-06-15 00:19:56 +00:00
rebuild_lcssa.ll	[LoopSimplify] When simplifying phis in loop-simplify, do it only if it preserves LCSSA form.	2016-09-27 21:03:45 +00:00
runtime-loop.ll	[LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its original value.	2016-08-02 21:24:14 +00:00
runtime-loop1.ll	[LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its original value.	2016-08-02 21:24:14 +00:00
runtime-loop2.ll	[LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its original value.	2016-08-02 21:24:14 +00:00
runtime-loop3.ll	…
runtime-loop4.ll	[LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its original value.	2016-08-02 21:24:14 +00:00
runtime-loop5.ll	[LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its original value.	2016-08-02 21:24:14 +00:00
scevunroll.ll	…
shifted-tripcount.ll	…
tripcount-overflow.ll	[LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its original value.	2016-08-02 21:24:14 +00:00
unloop.ll	[LoopUnroll] Include hotness of region in opt remark	2016-07-29 19:29:47 +00:00
unroll-cleanup.ll	[LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its original value.	2016-08-02 21:24:14 +00:00
unroll-cleanuppad.ll	…
unroll-count.ll	The patch set unroll disable pragma when unroll	2016-06-08 20:21:24 +00:00
unroll-heuristics-pgo.ll	Use profile info to adjust loop unroll threshold.	2016-11-17 01:17:02 +00:00
unroll-opt-attribute.ll	Loop unroller: set thresholds for optsize and minsize functions to zero	2016-05-10 21:45:55 +00:00
unroll-pragmas-disabled.ll	…
unroll-pragmas.ll	Revert test change in r282894 as it's broken in some platforms.	2016-09-30 19:25:23 +00:00
update-loop-info-in-subloops.ll	…