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2 Commits

Author SHA1 Message Date
Nikita Popov
b965ccb2fd [AArch64] Turn BIC immediate creation into a DAG combine 
Switch BIC immediate creation for vector ANDs from custom lowering
to a DAG combine, which gives generic DAG combines a change to
apply first. In particular this avoids (and x, -1) being turned into
a (bic x, 0) instead of being eliminated entirely.

Differential Revision: https://reviews.llvm.org/D59187

llvm-svn: 356299
 2019-03-15 21:04:34 +00:00
Nikita Popov
2d35e0e42a [AArch64] Add tests for saddsat/ssubsat; NFC 
Signed versions of the existing unsigned tests.

llvm-svn: 355787
 2019-03-10 12:21:36 +00:00