| Dan Gohman | da594cf | 2009-09-09 00:09:15 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep uxtb | count 1 |
| 2 | ; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep uxtab | count 1 |
| 3 | ; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep uxth | count 1 |
| Evan Cheng | 0f994ed | 2009-07-03 01:43:10 +0000 | [diff] [blame] | 4 | |
| 5 | define i8 @test1(i32 %A.u) zeroext { |
| 6 | %B.u = trunc i32 %A.u to i8 |
| 7 | ret i8 %B.u |
| 8 | } |
| 9 | |
| 10 | define i32 @test2(i32 %A.u, i32 %B.u) zeroext { |
| 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 i32 @test3(i32 %A.u) zeroext { |
| 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 | } |