Sam Parker dc1f81fb55 [ARM] Allow unrolling of multi-block loops. ...

Before, loop unrolling was only enabled for loops with a single
block. This restriction has been removed and replaced by:
- allow a maximum of two exiting blocks,
- a four basic block limit for cores with a branch predictor.

Differential Revision: https://reviews.llvm.org/D38952


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316313 91177308-0d34-0410-b5e6-96231b3b80d8

2017-10-23 08:05:14 +00:00

..

AArch64

[AArch64][Falkor] Try to avoid exhausting HW prefetcher resources when unrolling.

2017-06-28 18:53:09 +00:00

AMDGPU

AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel

2017-03-21 21:39:51 +00:00

ARM

[ARM] Allow unrolling of multi-block loops.

2017-10-23 08:05:14 +00:00

PowerPC

The cost of splitting a large vector instruction is not being taken into account by the getUserCost function. This was leading to some loops being over unrolled. The cost of a vector instruction is now being multiplied by the cost of the type legalization. This will return a more accurate cost.

2017-10-19 18:16:31 +00:00

X86

Changed basic cost of store operation on X86

2017-08-20 12:34:29 +00:00

2004-05-13-DontUnrollTooMuch.ll

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2005-03-06-BadLoopInfoUpdate.ll

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2006-08-24-MultiBlockLoop.ll

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2007-04-16-PhiUpdate.ll

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2007-05-05-UnrollMiscomp.ll

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2007-05-09-UnknownTripCount.ll

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2007-11-05-Crash.ll

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2011-08-08-PhiUpdate.ll

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2011-08-09-IVSimplify.ll

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2011-08-09-PhiUpdate.ll

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2011-10-01-NoopTrunc.ll

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2012-04-09-unroll-indirectbr.ll

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basic.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

convergent.ll

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ephemeral.ll

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epilog_const_phi.ll

Add test missed in r296770.

2017-03-04 05:20:02 +00:00

full-unroll-bad-cost.ll

[PM] Simplify the new PM interface to the loop unroller and expose two

2017-01-26 02:13:50 +00:00

full-unroll-crashers.ll

[PM] Simplify the new PM interface to the loop unroller and expose two

2017-01-26 02:13:50 +00:00

full-unroll-heuristics-2.ll

[PM] Simplify the new PM interface to the loop unroller and expose two

2017-01-26 02:13:50 +00:00

full-unroll-heuristics-cmp.ll

[PM] Simplify the new PM interface to the loop unroller and expose two

2017-01-26 02:13:50 +00:00

full-unroll-heuristics-dce.ll

[PM] Simplify the new PM interface to the loop unroller and expose two

2017-01-26 02:13:50 +00:00

full-unroll-heuristics-geps.ll

[PM] Simplify the new PM interface to the loop unroller and expose two

2017-01-26 02:13:50 +00:00

full-unroll-heuristics-phi-prop.ll

[PM] Simplify the new PM interface to the loop unroller and expose two

2017-01-26 02:13:50 +00:00

full-unroll-heuristics.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

full-unroll-keep-first-exit.ll

[PM] Simplify the new PM interface to the loop unroller and expose two

2017-01-26 02:13:50 +00:00

high-cost-trip-count-computation.ll

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ignore-annotation-intrinsic-cost.ll

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loop-remarks-with-hotness.ll

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loop-remarks.ll

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not-rotated.ll

[LoopUnroll] Fix a test. REQUIRE should be REQUIRES.

2017-05-12 15:30:58 +00:00

partial-unroll-const-bounds.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

peel-loop2.ll

[LoopUnroll] Remap references in peeled iteration

2017-03-26 16:46:53 +00:00

peel-loop-irreducible.ll

[LoopUnroll] Don't peel loops where the latch isn't the exiting block

2017-03-16 21:07:48 +00:00

peel-loop-negative.ll

[LoopPeeling] Fix condition for phi-eliminating peeling

2017-04-17 05:38:28 +00:00

peel-loop-not-forced.ll

[LoopPeeling] Get rid of Phis that become invariant after N steps

2017-04-17 09:52:02 +00:00

peel-loop-pgo.ll

Use profile summary to disable peeling for huge working sets

2017-08-03 23:42:58 +00:00

peel-loop.ll

[SimplifyCFG] Defer folding unconditional branches to LateSimplifyCFG if it can destroy canonical loop structure.

2017-07-19 08:53:34 +00:00

pr10813.ll

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pr11361.ll

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pr14167.ll

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pr18861.ll

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pr27157.ll

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pr28132.ll

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pr31718.ll

[LoopUnroll] First form LCSSA, then loop-simplify

2017-01-23 23:45:42 +00:00

pr33437.ll

[LoopUnroll] Make the test for PR33437 actually useful.

2017-08-29 17:24:09 +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

revisit.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

runtime-li.ll

[LoopUnroll] Properly update loopinfo for runtime unrolling by 2

2017-01-26 01:04:11 +00:00

runtime-loop1.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

runtime-loop2.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

runtime-loop3.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

runtime-loop4.ll

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runtime-loop5.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

runtime-loop-multiexit-dom-verify.ll

[RuntimeUnrolling] Update DomTree correctly when exit blocks have successors

2017-07-13 13:21:23 +00:00

runtime-loop-multiple-exits.ll

[RuntimeUnrolling] Populate the VMap entry correctly when default generated through lookup

2017-09-15 13:29:33 +00:00

runtime-loop.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

runtime-multiexit-heuristic.ll

[RuntimeUnroll] Add heuristic for unrolling multi-exit loop

2017-09-15 15:56:05 +00:00

runtime-unroll-remainder.ll

[ValueTracking] Enabling ValueTracking patch by default

2017-10-20 10:08:47 +00:00

scevunroll.ll

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shifted-tripcount.ll

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tripcount-overflow.ll

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unloop.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00

unroll-cleanup.ll

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unroll-cleanuppad.ll

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unroll-count.ll

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unroll-heuristics-pgo.ll

The patch turns on epilogue unroll for loops with constant recurency start.

2017-03-02 17:38:46 +00:00

unroll-loop-invalidation.ll

Use a BumpPtrAllocator for Loop objects

2017-09-28 02:45:42 +00:00

unroll-maxcount.ll

[LoopUnroll] Fix bug in computeUnrollCount causing it to not honor MaxCount

2017-06-28 17:01:15 +00:00

unroll-opt-attribute.ll

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unroll-pragmas-disabled.ll

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unroll-pragmas.ll

The patch turns on epilogue unroll for loops with constant recurency start.

2017-03-02 17:38:46 +00:00

update-loop-info-in-subloops.ll

[PM] Split LoopUnrollPass and make partial unroller a function pass

2017-08-02 20:35:29 +00:00