| Dan Gohman | 36a0947 | 2009-09-08 23:54:48 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=x86-64 | grep mov | count 1 |
| Dan Gohman | e3d9206 | 2008-08-07 02:54:50 +0000 | [diff] [blame] | 2 | |
| 3 | ; Do eliminate the zero-extension instruction and rely on | ||||
| 4 | ; x86-64's implicit zero-extension! | ||||
| 5 | |||||
| 6 | define i64 @foo(i32* %p) nounwind { | ||||
| 7 | %t = load i32* %p | ||||
| 8 | %n = add i32 %t, 1 | ||||
| 9 | %z = zext i32 %n to i64 | ||||
| 10 | ret i64 %z | ||||
| 11 | } | ||||