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Author SHA1 Message Date
Michael Kuperstein 5fb39a7966 [SLP] Revert everything that has to do with memory access sorting. 
This reverts r293386, r294027, r294029 and r296411.

Turns out the SLP tree isn't actually a "tree" and we don't handle
accessing the same packet of loads in several different orders well,
causing miscompiles.

Revert until we can fix this properly.

llvm-svn: 297493
 2017-03-10 18:59:07 +00:00
Mohammad Shahid 3121334d32 [SLP] Vectorize loads of consecutive memory accesses, accessed in non-consecutive (jumbled) way. 
The jumbled scalar loads will be sorted while building the tree and these accesses will be marked to generate shufflevector after the vectorized load with proper mask.

Reviewers: hfinkel, mssimpso, mkuper

Differential Revision: https://reviews.llvm.org/D26905

Change-Id: I9c0c8e6f91a00076a7ee1465440a3f6ae092f7ad
llvm-svn: 293386
 2017-01-28 17:59:44 +00:00
Mohammad Shahid 5dc021bf45 [SLP] Add a base test for jumbled store 
Change-Id: I905ce08a02c76a6896dcfd9629547417c99adc4a
llvm-svn: 292581
 2017-01-20 06:05:33 +00:00