30 lines
637 B
LLVM
30 lines
637 B
LLVM
; RUN: llc -mtriple=aarch64-none-linux-gnu < %s | FileCheck %s
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; Check that the eon instruction is generated instead of eor,movn
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define i64 @test1(i64 %a, i64 %b, i64 %c) {
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; CHECK-LABEL: test1:
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; CHECK: eon
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; CHECK: ret
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entry:
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%shl = shl i64 %b, 4
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%neg = xor i64 %a, -1
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%xor = xor i64 %shl, %neg
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ret i64 %xor
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}
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; Same check with mutliple uses of %neg
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define i64 @test2(i64 %a, i64 %b, i64 %c) {
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; CHECK-LABEL: test2:
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; CHECK: eon
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; CHECK: eon
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; CHECK: lsl
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; CHECK: ret
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entry:
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%shl = shl i64 %b, 4
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%neg = xor i64 %shl, -1
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%xor = xor i64 %neg, %a
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%xor1 = xor i64 %c, %neg
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%shl2 = shl i64 %xor, %xor1
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ret i64 %shl2
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}
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