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Roman Gareev 11001e1534 Annotation of SIMD loops 
Use 'mark' nodes annotate a SIMD loop during ScheduleTransformation and skip
parallelism checks.

The buildbot shows the following compile/execution time changes:

  Compile time:
    Improvements    Δ     Previous  Current  σ
    …/gesummv      -6.06% 0.2640    0.2480   0.0055
    …/gemver       -4.46% 0.4480    0.4280   0.0044
    …/covariance   -4.31% 0.8360    0.8000   0.0065
    …/adi          -3.23% 0.9920    0.9600   0.0065
    …/doitgen      -2.53% 0.9480    0.9240   0.0090
    …/3mm          -2.33% 1.0320    1.0080   0.0087

  Execution time:
    Regressions     Δ     Previous  Current  σ
    …/viterbi       1.70% 5.1840    5.2720   0.0074
    …/smallpt       1.06% 12.4920   12.6240  0.0040

Reviewed-by: Tobias Grosser <tobias@grosser.es>

Differential Revision: http://reviews.llvm.org/D14491

llvm-svn: 261620
 		2016-02-23 09:00:13 +00:00
..
2012-03-16-Empty-Domain.ll tests: Drop -polly-detect-unprofitable and -polly-no-early-exit 2015-10-06 15:36:44 +00:00
2012-04-16-Trivially-vectorizable-loops.ll tests: Drop -polly-detect-unprofitable and -polly-no-early-exit 2015-10-06 15:36:44 +00:00
2013-04-11-Empty-Domain-two.ll tests: Drop -polly-detect-unprofitable and -polly-no-early-exit 2015-10-06 15:36:44 +00:00
computeout.ll tests: Drop -polly-detect-unprofitable and -polly-no-early-exit 2015-10-06 15:36:44 +00:00
full_partial_tile_separation.ll Annotation of SIMD loops 2016-02-23 09:00:13 +00:00
line-tiling-2.ll tests: Drop -polly-detect-unprofitable and -polly-no-early-exit 2015-10-06 15:36:44 +00:00
line-tiling.ll tests: Drop -polly-detect-unprofitable and -polly-no-early-exit 2015-10-06 15:36:44 +00:00
one-dimensional-band.ll tests: Drop -polly-detect-unprofitable and -polly-no-early-exit 2015-10-06 15:36:44 +00:00
prevectorization-without-tiling.ll Annotation of SIMD loops 2016-02-23 09:00:13 +00:00
prevectorization.ll Annotation of SIMD loops 2016-02-23 09:00:13 +00:00
rectangular-tiling.ll Annotation of SIMD loops 2016-02-23 09:00:13 +00:00