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3 Commits

Author SHA1 Message Date
Ehsan Toosi
4e9f4d0b9d [mlir] Fix bug in copy removal 
A crash could happen due to copy removal. The bug is fixed and two more
test cases are added.

Differential Revision: https://reviews.llvm.org/D87128
 2020-09-08 14:17:13 +02:00
Ehsan Toosi
486d2750c7 [mlir][NFC] Polish copy removal transform 
Address a few remaining comments in copy removal transform.

Differential Revision: https://reviews.llvm.org/D84529
 2020-07-28 08:34:44 +02:00
Ehsan Toosi
0f03b2bfda [mlir] Add redundant copy removal transform 
This pass removes redundant dialect-independent Copy operations in different
situations like the following:

%from = ...
%to = ...
... (no user/alias for %to)
copy(%from, %to)
... (no user/alias for %from)
dealloc %from
use(%to)

Differential Revision: https://reviews.llvm.org/D82757
 2020-07-03 15:36:25 +02:00