1 ; RUN: llc < %s -march=thumb -stats |& \ 2 ; RUN: grep {4 .*Number of machine instrs printed} 3 4 ;; Integer absolute value, should produce something as good as: 5 ;; Thumb: 6 ;; movs r0, r0 7 ;; bpl 8 ;; rsb r0, r0, #0 (with opitmization, bpl + rsb is if-converted into rsbmi) 9 ;; bx lr 10 11 define i32 @test(i32 %a) { 12 %tmp1neg = sub i32 0, %a 13 %b = icmp sgt i32 %a, -1 14 %abs = select i1 %b, i32 %a, i32 %tmp1neg 15 ret i32 %abs 16 ; CHECK: movs r0, r0 17 ; CHECK: bpl 18 ; CHECK: rsb r0, r0, #0 19 ; CHECK: bx lr 20 } 21 22 23
