4 Commits

Author SHA1 Message Date
Tim Northover
323358184e GlobalISel: add code to widen scalar G_ADD
llvm-svn: 277747
2016-08-04 18:35:11 +00:00
Ahmed Bougacha
f49ab9af2c [GlobalISel] Const-ify MachineInstrs passed to MachineLegalizer.
llvm-svn: 277445
2016-08-02 11:41:03 +00:00
Tim Northover
33b07d6725 GlobalISel: implement legalization pass, with just one transformation.
This adds the actual MachineLegalizeHelper to do the work and a trivial pass
wrapper that legalizes all instructions in a MachineFunction. Currently the
only transformation supported is splitting up a vector G_ADD into one acting on
smaller vectors.

llvm-svn: 276461
2016-07-22 20:03:43 +00:00
Tim Northover
75ad077330 GlobalISel: implement Legalization querying framework.
This adds an (incomplete, inefficient) framework for deciding what to do with
some operation on a given type.

llvm-svn: 276184
2016-07-20 21:13:29 +00:00