R600: Implement isZExtFree.
authorMatt Arsenault <Matthew.Arsenault@amd.com>
Thu, 27 Mar 2014 17:23:31 +0000 (17:23 +0000)
committerMatt Arsenault <Matthew.Arsenault@amd.com>
Thu, 27 Mar 2014 17:23:31 +0000 (17:23 +0000)
This allows 64-bit operations that are truncated to be reduced
to 32-bit ones.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204946 91177308-0d34-0410-b5e6-96231b3b80d8


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