| ; RUN: llc < %s -march=arm -mattr=+v6 | grep uxtb | count 1 |
| ; RUN: llc < %s -march=arm -mattr=+v6 | grep uxtab | count 1 |
| ; RUN: llc < %s -march=arm -mattr=+v6 | grep uxth | count 1 |
| |
| define zeroext i8 @test1(i32 %A.u) { |
| %B.u = trunc i32 %A.u to i8 |
| ret i8 %B.u |
| } |
| |
| define zeroext i32 @test2(i32 %A.u, i32 %B.u) { |
| %C.u = trunc i32 %B.u to i8 |
| %D.u = zext i8 %C.u to i32 |
| %E.u = add i32 %A.u, %D.u |
| ret i32 %E.u |
| } |
| |
| define zeroext i32 @test3(i32 %A.u) { |
| %B.u = lshr i32 %A.u, 8 |
| %C.u = shl i32 %A.u, 24 |
| %D.u = or i32 %B.u, %C.u |
| %E.u = trunc i32 %D.u to i16 |
| %F.u = zext i16 %E.u to i32 |
| ret i32 %F.u |
| } |