mirror of
https://github.com/c64scene-ar/llvm-6502.git
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7b837d8c75
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
29 lines
607 B
LLVM
29 lines
607 B
LLVM
; RUN: llc < %s -march=arm64 | FileCheck %s
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; rdar://12771555
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define void @foo(i16* %ptr, i32 %a) nounwind {
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entry:
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; CHECK-LABEL: foo:
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%tmp1 = icmp ult i32 %a, 100
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br i1 %tmp1, label %bb1, label %bb2
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bb1:
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; CHECK: %bb1
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; CHECK: ldrh [[REG:w[0-9]+]]
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%tmp2 = load i16* %ptr, align 2
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br label %bb2
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bb2:
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; CHECK: %bb2
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; CHECK-NOT: and {{w[0-9]+}}, [[REG]], #0xffff
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; CHECK: cmp [[REG]], #23
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%tmp3 = phi i16 [ 0, %entry ], [ %tmp2, %bb1 ]
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%cmp = icmp ult i16 %tmp3, 24
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br i1 %cmp, label %bb3, label %exit
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bb3:
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call void @bar() nounwind
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br label %exit
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exit:
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ret void
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}
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declare void @bar ()
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