1 ; RUN: llc -mtriple=x86_64-- < %s | not grep negq
3 ; These sequences don't need neg instructions; they can be done with
4 ; a single shift and sub each.
6 define i64 @foo(i64 %x, i64 %y, i64 %n) nounwind {
12 define i64 @boo(i64 %x, i64 %y, i64 %n) nounwind {