Evgeny Stupachenko 8323ef30a7 The patch refactors unroll pass. ...

Summary:
Unroll factor (Count) calculations moved to a new function.
Early exits on pragma and "-unroll-count" defined factor added.
New type of unrolling "Force" introduced (previously used implicitly).
New unroll preference "AllowRemainder" introduced and set "true" by default.
(should be set to false for architectures that suffers from it).

Reviewers: hfinkel, mzolotukhin, zzheng

Differential Revision: http://reviews.llvm.org/D19553

From: Evgeny Stupachenko <evstupac@gmail.com>
llvm-svn: 271071

2016-05-27 23:15:06 +00:00

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AArch64

The patch fixes PR27392.

2016-04-27 03:04:54 +00:00

AMDGPU

AMDGPU: Remove some old intrinsic uses from tests

2016-02-11 06:02:01 +00:00

PowerPC

Loop unroller: set thresholds for optsize and minsize functions to zero

2016-05-10 21:45:55 +00:00

X86

Adds the ability to use an epilog remainder loop during loop unrolling and makes

2016-04-05 12:19:35 +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

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2011-08-09-IVSimplify.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2011-08-09-PhiUpdate.ll

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2011-10-01-NoopTrunc.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2012-04-09-unroll-indirectbr.ll

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basic.ll

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convergent.ll

[LoopUnroll] Respect the convergent attribute.

2016-03-14 23:15:34 +00:00

ephemeral.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

full-unroll-bad-cost.ll

[LoopUnroll] Fix truncation bug in canUnrollCompletely.

2015-06-06 05:24:10 +00:00

full-unroll-crashers.ll

[LoopUnrollAnalyzer] Bail out instead of dying with assert when facing huge index.

2016-05-27 00:55:16 +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

[Unroll] Improve the brute force loop unroll estimate by propagating

2015-08-03 20:32:27 +00:00

full-unroll-heuristics.ll

[Unroll] Rework the naming and structure of the new unroll heuristics.

2015-06-05 17:01:43 +00:00

high-cost-trip-count-computation.ll

Adds the ability to use an epilog remainder loop during loop unrolling and makes

2016-04-05 12:19:35 +00:00

ignore-annotation-intrinsic-cost.ll

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loop-remarks.ll

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nsw-tripcount.ll

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partial-unroll-const-bounds.ll

The patch refactors unroll pass.

2016-05-27 23:15:06 +00:00

pr10813.ll

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pr11361.ll

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pr14167.ll

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pr18861.ll

[Tests] Add one more case to LoopUnroll/pr18861.ll for better coverage.

2015-10-02 19:21:52 +00:00

pr27157.ll

[LoopUnroll] Fix the way we update DT after complete unrolling.

2016-04-06 21:47:12 +00:00

rebuild_lcssa.ll

[LoopUnrolling] Fix a bug introduced in r259869 (PR26688).

2016-02-22 21:21:45 +00:00

runtime-loop1.ll

The patch fixes PR27392.

2016-04-27 03:04:54 +00:00

runtime-loop2.ll

Adds the ability to use an epilog remainder loop during loop unrolling and makes

2016-04-05 12:19:35 +00:00

runtime-loop3.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

runtime-loop4.ll

Adds the ability to use an epilog remainder loop during loop unrolling and makes

2016-04-05 12:19:35 +00:00

runtime-loop5.ll

Adds the ability to use an epilog remainder loop during loop unrolling and makes

2016-04-05 12:19:35 +00:00

runtime-loop.ll

The patch fixes PR27392.

2016-04-27 03:04:54 +00:00

scevunroll.ll

Revert "[IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader"

2015-11-03 07:14:39 +00:00

shifted-tripcount.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

tripcount-overflow.ll

The patch fixes PR27392.

2016-04-27 03:04:54 +00:00

unloop.ll

LoopInfo: Simplify ownership of Loop objects

2016-01-08 19:08:53 +00:00

unroll-cleanup.ll

Adds the ability to use an epilog remainder loop during loop unrolling and makes

2016-04-05 12:19:35 +00:00

unroll-cleanuppad.ll

[LoopUnroll] Unroll loops which have exit blocks to EH pads

2016-05-03 03:57:40 +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

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

unroll-pragmas.ll

Loop unroller: set thresholds for optsize and minsize functions to zero

2016-05-10 21:45:55 +00:00

update-loop-info-in-subloops.ll

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