| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame^] | 1 | ; These tests should not contain a sign extend. |
| 2 | ; RUN: llvm-as < %s | llc -march=ppc32 | not grep extsh |
| 3 | ; RUN: llvm-as < %s | llc -march=ppc32 | not grep extsb |
| 4 | |
| 5 | define i32 @test1(i32 %mode.0.i.0) { |
| 6 | %tmp.79 = trunc i32 %mode.0.i.0 to i16 |
| 7 | %tmp.80 = sext i16 %tmp.79 to i32 |
| 8 | %tmp.81 = and i32 %tmp.80, 24 |
| 9 | ret i32 %tmp.81 |
| 10 | } |
| 11 | |
| 12 | define i16 @test2(i16 sext %X, i16 sext %x) sext { |
| 13 | %tmp = sext i16 %X to i32 |
| 14 | %tmp1 = sext i16 %x to i32 |
| 15 | %tmp2 = add i32 %tmp, %tmp1 |
| 16 | %tmp4 = ashr i32 %tmp2, 1 |
| 17 | %tmp5 = trunc i32 %tmp4 to i16 |
| 18 | %tmp45 = sext i16 %tmp5 to i32 |
| 19 | %retval = trunc i32 %tmp45 to i16 |
| 20 | ret i16 %retval |
| 21 | } |
| 22 | |
| 23 | define i16 @test3(i32 zext %X) sext { |
| 24 | %tmp1 = lshr i32 %X, 16 |
| 25 | %tmp2 = trunc i32 %tmp1 to i16 |
| 26 | ret i16 %tmp2 |
| 27 | } |
| 28 | |