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Tim Northover 7b837d8c75 ARM64: initial backend import

This adds a second implementation of the AArch64 architecture to LLVM,
accessible in parallel via the "arm64" triple. The plan over the
coming weeks & months is to merge the two into a single backend,
during which time thorough code review should naturally occur.

Everything will be easier with the target in-tree though, hence this
commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8

2014-03-29 10:18:08 +00:00

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 ; RUN: llc < %s -march=arm64 | FileCheck %s
 define float @t1(i1 %a, float %b, float %c) nounwind {
 ; CHECK: t1
 ; CHECK: fcsel	s0, s0, s1, ne
   %sel = select i1 %a, float %b, float %c
   ret float %sel
 }