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 5 define zeroext i8 @test1(i32 %A.u) { 6 %B.u = trunc i32 %A.u to i8 7 ret i8 %B.u 8 } 9 10 define 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 17 define 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
