| Preston Gurd | 52dacca | 2012-10-29 15:01:23 +0000 | [diff] [blame] | 1 | ; PR13504 |
| 2 | ; RUN: llc -march=x86 -mcpu=atom <%s | FileCheck %s | ||||
| 3 | ; CHECK: bsfl | ||||
| 4 | ; CHECK-NOT: movl | ||||
| 5 | |||||
| 6 | define i32 @foo(i32 %treemap) nounwind uwtable { | ||||
| 7 | entry: | ||||
| 8 | %sub = sub i32 0, %treemap | ||||
| 9 | %and = and i32 %treemap, %sub | ||||
| 10 | %0 = tail call i32 asm "bsfl $1,$0\0A\09", "=r,rm,~{dirflag},~{fpsr},~{flags}"(i32 %and) nounwind | ||||
| 11 | ret i32 %0 | ||||
| 12 | } | ||||
| 13 | |||||