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archived-llvm/test/CodeGen/SystemZ
Bjorn Pettersson 57b216445b [DAG] Refactor DAGCombiner::ReassociateOps
Summary:
Extract the logic for doing reassociations
from DAGCombiner::reassociateOps into a helper
function DAGCombiner::reassociateOpsCommutative,
and use that helper to trigger reassociation
on the original operand order, or the commuted
operand order.

Codegen is not identical since the operand order will
be different when doing the reassociations for the
commuted case. That causes some unfortunate churn in
some test cases. Apart from that this should be NFC.

Reviewers: spatel, craig.topper, tstellar

Reviewed By: spatel

Subscribers: dmgreen, dschuff, jvesely, nhaehnle, javed.absar, sbc100, jgravelle-google, hiraditya, aheejin, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D61199

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@359476 91177308-0d34-0410-b5e6-96231b3b80d8
2019-04-29 17:50:10 +00:00
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