1; PR13504 2; RUN: llc -march=x86 -mcpu=atom <%s | FileCheck %s 3; CHECK: bsfl 4; CHECK-NOT: movl 5 6define i32 @foo(i32 %treemap) nounwind uwtable { 7entry: 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 14