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4 Commits

Author SHA1 Message Date
Alexey Bataev 428e9d9d87 [SLP] Fix PR36481: vectorize reassociated instructions. 
Summary:
If the load/extractelement/extractvalue instructions are not originally
consecutive, the SLP vectorizer is unable to vectorize them. Patch
allows reordering of such instructions.

Patch does not support reordering of the repeated instruction, this must
be handled in the separate patch.

Reviewers: RKSimon, spatel, hfinkel, mkuper, Ayal, ashahid

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D43776

llvm-svn: 329085
 2018-04-03 17:14:47 +00:00
Benjamin Kramer 2fc3b18922 Revert "[SLP] Fix PR36481: vectorize reassociated instructions." 
This reverts commit r328980 and r329046. Makes the vectorizer crash.

llvm-svn: 329071
 2018-04-03 14:40:33 +00:00
Alexey Bataev 3decaf4275 [SLP] Fix PR36481: vectorize reassociated instructions. 
Summary:
If the load/extractelement/extractvalue instructions are not originally
consecutive, the SLP vectorizer is unable to vectorize them. Patch
allows reordering of such instructions.

Reviewers: RKSimon, spatel, hfinkel, mkuper, Ayal, ashahid

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D43776

llvm-svn: 328980
 2018-04-02 14:51:37 +00:00
Alexey Bataev b44e2b75e8 [SLP] Added new test + fixed some checks, NFC. 
llvm-svn: 326117
 2018-02-26 20:01:24 +00:00