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2 Commits

Author SHA1 Message Date
Jonas Paulsson da3da48a1c [SystemZ] Enable machine scheduler. 
The machine scheduler (before register allocation) is enabled by default for
SystemZ.

The SelectionDAG scheduling preference now becomes source order scheduling
(was regpressure).

Review: Ulrich Weigand
https://reviews.llvm.org/D37977

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315063 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-10-06 13:59:28 +00:00
Nirav Dave af1205bfae [SystemZ] Prevent Merging Bitcast with non-normal loads 
Fixes PR32505.

Reviewers: uweigand, jonpa

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31609

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299552 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-04-05 15:42:48 +00:00