53 lines
1.4 KiB
LLVM
53 lines
1.4 KiB
LLVM
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; RUN: llc -mtriple=arm -mattr=+neon %s -o - | FileCheck %s
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; Check codegen for 64-bit icmp operations, which don't directly map to any
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; instruction.
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define <2 x i64> @vne(ptr %A, ptr %B) nounwind {
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;CHECK-LABEL: vne:
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;CHECK: vceq.i32
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;CHECK-NEXT: vrev64.32
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;CHECK-NEXT: vand
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;CHECK-NEXT: vmvn
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;CHECK-NEXT: vmov
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;CHECK-NEXT: vmov
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;CHECK-NEXT: mov pc, lr
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%tmp1 = load <2 x i64>, ptr %A
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%tmp2 = load <2 x i64>, ptr %B
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%tmp3 = icmp ne <2 x i64> %tmp1, %tmp2
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%tmp4 = sext <2 x i1> %tmp3 to <2 x i64>
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ret <2 x i64> %tmp4
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}
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define <2 x i64> @veq(ptr %A, ptr %B) nounwind {
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;CHECK-LABEL: veq:
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;CHECK: vceq.i32
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;CHECK-NEXT: vrev64.32
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;CHECK-NEXT: vand
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;CHECK-NEXT: vmov
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;CHECK-NEXT: vmov
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;CHECK-NEXT: mov pc, lr
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%tmp1 = load <2 x i64>, ptr %A
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%tmp2 = load <2 x i64>, ptr %B
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%tmp3 = icmp eq <2 x i64> %tmp1, %tmp2
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%tmp4 = sext <2 x i1> %tmp3 to <2 x i64>
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ret <2 x i64> %tmp4
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}
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; FIXME: We currently generate terrible code for this.
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; (Atop < Btop) | ((ATop == BTop) & (ABottom < BBottom))
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; would come out to roughly 6 instructions, but we currently
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; scalarize it.
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define <2 x i64> @vult(ptr %A, ptr %B) nounwind {
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;CHECK-LABEL: vult:
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;CHECK: subs
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;CHECK: sbcs
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;CHECK: subs
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;CHECK: sbcs
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%tmp1 = load <2 x i64>, ptr %A
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%tmp2 = load <2 x i64>, ptr %B
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%tmp3 = icmp ult <2 x i64> %tmp1, %tmp2
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%tmp4 = sext <2 x i1> %tmp3 to <2 x i64>
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ret <2 x i64> %tmp4
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}
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