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