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df7cecc36b3fce7bacfedfd8b5692f31bd4cc374
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4 Commits

Author SHA1 Message Date
Tim Northover
df7cecc36b GlobalISel: extend add widening to SUB, MUL, OR, AND and XOR. 
These are the operations that are trivially identical. Division is omitted for
now because you need to use the correct sign/zero extension.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277775 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-08-04 21:39:49 +00:00
Tim Northover
6857d7cf47 GlobalISel: implement narrowing for G_ADD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277769 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-08-04 20:54:13 +00:00
Tim Northover
143570a5a5 GlobalISel: add code to widen scalar G_ADD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277747 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-08-04 18:35:11 +00:00
Tim Northover
ea26cb1f48 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276461 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-07-22 20:03:43 +00:00