1; RUN: llc < %s -march=arm -mattr=+v6 | grep uxtb | count 1
2; RUN: llc < %s -march=arm -mattr=+v6 | grep uxtab | count 1
3; RUN: llc < %s -march=arm -mattr=+v6 | grep uxth | count 1
4
5define zeroext i8 @test1(i32 %A.u) {
6    %B.u = trunc i32 %A.u to i8
7    ret i8 %B.u
8}
9
10define zeroext i32 @test2(i32 %A.u, i32 %B.u) {
11    %C.u = trunc i32 %B.u to i8
12    %D.u = zext i8 %C.u to i32
13    %E.u = add i32 %A.u, %D.u
14    ret i32 %E.u
15}
16
17define zeroext i32 @test3(i32 %A.u) {
18    %B.u = lshr i32 %A.u, 8
19    %C.u = shl i32 %A.u, 24
20    %D.u = or i32 %B.u, %C.u
21    %E.u = trunc i32 %D.u to i16
22    %F.u = zext i16 %E.u to i32
23    ret i32 %F.u
24}
25