Chris Lattner | a0aec0a | 2006-05-06 18:15:50 +0000 | [diff] [blame] | 1 | ; These tests should not contain a sign extend. |
Dan Gohman | fce288f | 2009-09-09 00:09:15 +0000 | [diff] [blame] | 2 | ; RUN: llc < %s -march=ppc32 | not grep extsh |
| 3 | ; RUN: llc < %s -march=ppc32 | not grep extsb |
Nate Begeman | d44d3d5 | 2006-02-17 21:22:08 +0000 | [diff] [blame] | 4 | |
Reid Spencer | e3ff5ad | 2007-01-26 08:25:06 +0000 | [diff] [blame] | 5 | define i32 @test1(i32 %mode.0.i.0) { |
Reid Spencer | 3b29264 | 2007-01-05 18:38:33 +0000 | [diff] [blame] | 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 |
Nate Begeman | d44d3d5 | 2006-02-17 21:22:08 +0000 | [diff] [blame] | 10 | } |
Chris Lattner | a0aec0a | 2006-05-06 18:15:50 +0000 | [diff] [blame] | 11 | |
Chris Lattner | 26b0000 | 2011-06-17 03:14:27 +0000 | [diff] [blame] | 12 | define signext i16 @test2(i16 signext %X, i16 signext %x) { |
Reid Spencer | 3b29264 | 2007-01-05 18:38:33 +0000 | [diff] [blame] | 13 | %tmp = sext i16 %X to i32 |
| 14 | %tmp1 = sext i16 %x to i32 |
| 15 | %tmp2 = add i32 %tmp, %tmp1 |
Reid Spencer | 832254e | 2007-02-02 02:16:23 +0000 | [diff] [blame] | 16 | %tmp4 = ashr i32 %tmp2, 1 |
Reid Spencer | 9085043 | 2007-01-30 16:16:01 +0000 | [diff] [blame] | 17 | %tmp5 = trunc i32 %tmp4 to i16 |
| 18 | %tmp45 = sext i16 %tmp5 to i32 |
Reid Spencer | 3b29264 | 2007-01-05 18:38:33 +0000 | [diff] [blame] | 19 | %retval = trunc i32 %tmp45 to i16 |
| 20 | ret i16 %retval |
Chris Lattner | a0aec0a | 2006-05-06 18:15:50 +0000 | [diff] [blame] | 21 | } |
| 22 | |
Chris Lattner | 26b0000 | 2011-06-17 03:14:27 +0000 | [diff] [blame] | 23 | define signext i16 @test3(i32 zeroext %X) { |
Reid Spencer | 832254e | 2007-02-02 02:16:23 +0000 | [diff] [blame] | 24 | %tmp1 = lshr i32 %X, 16 |
Reid Spencer | 9085043 | 2007-01-30 16:16:01 +0000 | [diff] [blame] | 25 | %tmp2 = trunc i32 %tmp1 to i16 |
| 26 | ret i16 %tmp2 |
Chris Lattner | 9b9a3cf | 2006-05-08 20:58:58 +0000 | [diff] [blame] | 27 | } |
| 28 | |