xref: /aosp_15_r20/external/llvm/test/CodeGen/ARM/rotate.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=thumbv8--linux-gnueabihf | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker;; This used to cause a backend crash about not being able to
4*9880d681SAndroid Build Coastguard Worker;; select ROTL. Make sure if generates the basic VSHL/VSHR.
5*9880d681SAndroid Build Coastguard Workerdefine <2 x i64> @testcase(<2 x i64>* %in) {
6*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: testcase
7*9880d681SAndroid Build Coastguard Worker; CHECK: vshl.i64
8*9880d681SAndroid Build Coastguard Worker; CHECK: vshr.u64
9*9880d681SAndroid Build Coastguard Worker  %1 = load <2 x i64>, <2 x i64>* %in
10*9880d681SAndroid Build Coastguard Worker  %2 = lshr <2 x i64> %1, <i64 8, i64 8>
11*9880d681SAndroid Build Coastguard Worker  %3 = shl <2 x i64> %1, <i64 56, i64 56>
12*9880d681SAndroid Build Coastguard Worker  %4 = or <2 x i64> %2, %3
13*9880d681SAndroid Build Coastguard Worker  ret <2 x i64> %4
14*9880d681SAndroid Build Coastguard Worker}
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