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diff test/CodeGen/AArch64/eon.ll @ 95:afa8332a0e37

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/AArch64/eon.ll	Tue Oct 13 17:48:58 2015 +0900
@@ -0,0 +1,29 @@
+; 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
+}