xref: /aosp_15_r20/external/llvm/test/CodeGen/Thumb2/thumb2-rev.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2,+v7,+t2xtpk %s -o - | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workerdefine i32 @f1(i32 %a) {
4*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1:
5*9880d681SAndroid Build Coastguard Worker; CHECK: rev r0, r0
6*9880d681SAndroid Build Coastguard Worker    %tmp = tail call i32 @llvm.bswap.i32(i32 %a)
7*9880d681SAndroid Build Coastguard Worker    ret i32 %tmp
8*9880d681SAndroid Build Coastguard Worker}
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdeclare i32 @llvm.bswap.i32(i32) nounwind readnone
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Workerdefine i32 @f2(i32 %X) {
13*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2:
14*9880d681SAndroid Build Coastguard Worker; CHECK: revsh r0, r0
15*9880d681SAndroid Build Coastguard Worker        %tmp1 = lshr i32 %X, 8
16*9880d681SAndroid Build Coastguard Worker        %tmp1.upgrd.1 = trunc i32 %tmp1 to i16
17*9880d681SAndroid Build Coastguard Worker        %tmp3 = trunc i32 %X to i16
18*9880d681SAndroid Build Coastguard Worker        %tmp2 = and i16 %tmp1.upgrd.1, 255
19*9880d681SAndroid Build Coastguard Worker        %tmp4 = shl i16 %tmp3, 8
20*9880d681SAndroid Build Coastguard Worker        %tmp5 = or i16 %tmp2, %tmp4
21*9880d681SAndroid Build Coastguard Worker        %tmp5.upgrd.2 = sext i16 %tmp5 to i32
22*9880d681SAndroid Build Coastguard Worker        ret i32 %tmp5.upgrd.2
23*9880d681SAndroid Build Coastguard Worker}
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