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3 Commits

Author SHA1 Message Date
Arkady Shlykov 3dcaf296ae [Loop Peeling] Add possibility to enable peeling on loop nests. 
Summary:
Current peeling implementation bails out in case of loop nests.
The patch introduces a field in TargetTransformInfo structure that
certain targets can use to relax the constraints if it's
profitable (disabled by default).
Also additional option is added to enable peeling manually for
experimenting and testing purposes.

Reviewers: fhahn, lebedev.ri, xbolva00

Reviewed By: xbolva00

Subscribers: RKSimon, xbolva00, hiraditya, zzheng, llvm-commits

Differential Revision: https://reviews.llvm.org/D70304
 2020-03-02 08:37:11 -08:00
Arkady Shlykov c87982b467 Revert "[Loop Peeling] Add possibility to enable peeling on loop nests." 
This reverts commit 3f3017e because there's a failure on peel-loop-nests.ll
with LLVM_ENABLE_EXPENSIVE_CHECKS on.

Differential Revision: https://reviews.llvm.org/D70304
 2020-01-16 10:33:38 -08:00
Arkady Shlykov 3f3017e162 [Loop Peeling] Add possibility to enable peeling on loop nests. 
Summary:
Current peeling implementation bails out in case of loop nests.
The patch introduces a field in TargetTransformInfo structure that
certain targets can use to relax the constraints if it's
profitable (disabled by default).
Also additional option is added to enable peeling manually for
experimenting and testing purposes.

Reviewers: fhahn, lebedev.ri, xbolva00

Reviewed By: xbolva00

Subscribers: xbolva00, hiraditya, zzheng, llvm-commits

Differential Revision: https://reviews.llvm.org/D70304
 2020-01-15 08:25:21 -08:00