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Summary: The LibCallSimplifier will turn llvm.exp2.* intrinsics into ldexp* libcalls which do not make sense with the AMDGPU backend. In the long run, we'll want an llvm.ldexp.* intrinsic to properly make use of this optimization, but this works around the problem for now. See also: http://reviews.llvm.org/D14327 (suggested llvm.ldexp.* implementation) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92709 Reviewers: arsenm, tstellarAMD Differential Revision: http://reviews.llvm.org/D14990 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255658 91177308-0d34-0410-b5e6-96231b3b80d8
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