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Matt Arsenault 01807baf69 TTI: Improve default costs for addrspacecast
For some reason multiple places need to do this, and the variant the
loop unroller and inliner use was not handling it.

Also, introduce a new wrapper to be slightly more precise, since on
AMDGPU some addrspacecasts are free, but not no-ops.

llvm-svn: 362436
2019-06-03 18:41:34 +00:00
..