1 ; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s 2 3 define i64 @f1(i64 %a, i64 %b) { 4 entry: 5 ; CHECK: f1: 6 ; CHECK: subs r0, r0, r2 7 ; CHECK: sbcs r1, r3 8 %tmp = sub i64 %a, %b 9 ret i64 %tmp 10 } 11 12 define i64 @f2(i64 %a, i64 %b) { 13 entry: 14 ; CHECK: f2: 15 ; CHECK: adds r0, r0, r0 16 ; CHECK: adcs r1, r1 17 ; CHECK: subs r0, r0, r2 18 ; CHECK: sbcs r1, r3 19 %tmp1 = shl i64 %a, 1 20 %tmp2 = sub i64 %tmp1, %b 21 ret i64 %tmp2 22 } 23
