llvm-6502/zext.ll at f61a467a5904a380ec9af743f2739ef68955ffb2 - llvm-6502 - Applefritter: Git

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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 i64 @foo(i32 %a, i32 %b) nounwind readnone ssp {
 entry:
 ; CHECK-LABEL: foo:
 ; CHECK: add w0, w1, w0
 ; CHECK: ret
   %add = add i32 %b, %a
   %conv = zext i32 %add to i64
   ret i64 %conv
 }