| Alkis Evlogimenos | d1862af | 2004-04-12 15:40:25 +0000 | [diff] [blame] | 1 | ; Linear scan does not currently coalesce any two variables that have |
| 2 | ; overlapping live intervals. When two overlapping intervals have the same |
| 3 | ; value, they can be joined though. |
| 4 | ; |
| Dan Gohman | 36a0947 | 2009-09-08 23:54:48 +0000 | [diff] [blame^] | 5 | ; RUN: llc < %s -march=x86 -regalloc=linearscan | \ |
| Reid Spencer | d3b1f6d | 2007-04-15 22:20:47 +0000 | [diff] [blame] | 6 | ; RUN: not grep {mov %\[A-Z\]\\\{2,3\\\}, %\[A-Z\]\\\{2,3\\\}} |
| Alkis Evlogimenos | d1862af | 2004-04-12 15:40:25 +0000 | [diff] [blame] | 7 | |
| Tanya Lattner | 6f729d6 | 2008-03-25 04:26:08 +0000 | [diff] [blame] | 8 | define i64 @test(i64 %x) { |
| Alkis Evlogimenos | 479f7e5 | 2004-04-12 19:04:22 +0000 | [diff] [blame] | 9 | entry: |
| Tanya Lattner | 6f729d6 | 2008-03-25 04:26:08 +0000 | [diff] [blame] | 10 | %tmp.1 = mul i64 %x, 4294967297 ; <i64> [#uses=1] |
| 11 | ret i64 %tmp.1 |
| Alkis Evlogimenos | d1862af | 2004-04-12 15:40:25 +0000 | [diff] [blame] | 12 | } |
| Tanya Lattner | 6f729d6 | 2008-03-25 04:26:08 +0000 | [diff] [blame] | 13 | |