tree ccdbfa09d7a64d709af79aa17c61c8a2589d0f8c
parent 4a35e768dcb12ffecfed07e0417610afcb9472eb
author Vladimir Marko <vmarko@google.com> 1429898631 +0100
committer Vladimir Marko <vmarko@google.com> 1430122869 +0100

Quick: Rely on inferred types in GVN/LVN/DCE.

Fix LVN::GetEndingVregValueNumberImpl() to check whether
the requested wideness matches the SSA register type as
recorded in MIRGraph::reg_location_.

Add DCHECKs that the wideness matches when getting/setting
sreg values, update Phi handling in LVN/DCE to use the type
from MIRGraph::reg_location_ instead of determining it from
the sreg value maps which would now trigger the DCHECKs.
Update tests to initialize MIRGraph::reg_location_.

Reenable DCE.

Bug: 20572509
Change-Id: I1a4d4e32cd57807ca8b56d2f3ed5e1288660b82e