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comparison test/CodeGen/AArch64/rotate.ll @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
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96:6418606d0ead 100:7d135dc70f03
1 ; RUN: llc < %s -mtriple=aarch64--linux-gnueabihf | FileCheck %s
2
3 ;; This used to cause a backend crash about not being able to
4 ;; select ROTL. Make sure if generates the basic ushr/shl.
5 define <2 x i64> @testcase(<2 x i64>* %in) {
6 ; CHECK-LABEL: testcase
7 ; CHECK: ushr {{v[0-9]+}}.2d
8 ; CHECK: shl {{v[0-9]+}}.2d
9 %1 = load <2 x i64>, <2 x i64>* %in
10 %2 = lshr <2 x i64> %1, <i64 8, i64 8>
11 %3 = shl <2 x i64> %1, <i64 56, i64 56>
12 %4 = or <2 x i64> %2, %3
13 ret <2 x i64> %4
14 }