1; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s
2; Radar 8017376: Missing 's' suffix for t2RSBS instructions.
3; CHECK: rsbs
4
5define i64 @test(i64 %x) nounwind readnone {
6entry:
7  %0 = sub nsw i64 1, %x                          ; <i64> [#uses=1]
8  ret i64 %0
9}
10