Matt Arsenault 2aed6ca1d3 AMDGPU: Switch barrier intrinsics to using convergent ...

noduplicate prevents unrolling of small loops that happen to have
barriers in them. If a loop has a barrier in it, it is OK to duplicate
it for the unroll.

llvm-svn: 256075

2015-12-19 01:46:41 +00:00

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