1 ; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s 2 3 define i64 @f1(i64 %a, i64 %b) { 4 entry: 5 ; CHECK-LABEL: 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-LABEL: f2: 15 ; CHECK: lsls r1, r1, #1 16 ; CHECK: orr.w r1, r1, r0, lsr #31 17 ; CHECK: rsbs r0, r2, r0, lsl #1 18 ; CHECK: sbcs r1, r3 19 %tmp1 = shl i64 %a, 1 20 %tmp2 = sub i64 %tmp1, %b 21 ret i64 %tmp2 22 } 23 24 ; rdar://12559385 25 define i64 @f3(i32 %vi) { 26 entry: 27 ; CHECK-LABEL: f3: 28 ; CHECK: movw [[REG:r[0-9]+]], #36102 29 ; CHECK: sbcs r{{[0-9]+}}, [[REG]] 30 %v0 = zext i32 %vi to i64 31 %v1 = xor i64 %v0, -155057456198619 32 %v4 = add i64 %v1, 155057456198619 33 %v5 = add i64 %v4, %v1 34 ret i64 %v5 35 } 36
