1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=arm-eabi -mattr=+v4t %s -o - | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker;; Integer absolute value, should produce something as good as: ARM: 4*9880d681SAndroid Build Coastguard Worker;; movs r0, r0 5*9880d681SAndroid Build Coastguard Worker;; rsbmi r0, r0, #0 6*9880d681SAndroid Build Coastguard Worker;; bx lr 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerdefine i32 @test(i32 %a) { 9*9880d681SAndroid Build Coastguard Worker %tmp1neg = sub i32 0, %a 10*9880d681SAndroid Build Coastguard Worker %b = icmp sgt i32 %a, -1 11*9880d681SAndroid Build Coastguard Worker %abs = select i1 %b, i32 %a, i32 %tmp1neg 12*9880d681SAndroid Build Coastguard Worker ret i32 %abs 13*9880d681SAndroid Build Coastguard Worker; CHECK: cmp 14*9880d681SAndroid Build Coastguard Worker; CHECK: rsbmi r0, r0, #0 15*9880d681SAndroid Build Coastguard Worker; CHECK: bx lr 16*9880d681SAndroid Build Coastguard Worker} 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Worker; rdar://11633193 19*9880d681SAndroid Build Coastguard Worker;; 3 instructions will be generated for abs(a-b): 20*9880d681SAndroid Build Coastguard Worker;; subs 21*9880d681SAndroid Build Coastguard Worker;; rsbmi 22*9880d681SAndroid Build Coastguard Worker;; bx 23*9880d681SAndroid Build Coastguard Workerdefine i32 @test2(i32 %a, i32 %b) nounwind readnone ssp { 24*9880d681SAndroid Build Coastguard Workerentry: 25*9880d681SAndroid Build Coastguard Worker; CHECK: test2 26*9880d681SAndroid Build Coastguard Worker; CHECK: subs 27*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: rsbmi 28*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: bx 29*9880d681SAndroid Build Coastguard Worker %sub = sub nsw i32 %a, %b 30*9880d681SAndroid Build Coastguard Worker %cmp = icmp sgt i32 %sub, -1 31*9880d681SAndroid Build Coastguard Worker %sub1 = sub nsw i32 0, %sub 32*9880d681SAndroid Build Coastguard Worker %cond = select i1 %cmp, i32 %sub, i32 %sub1 33*9880d681SAndroid Build Coastguard Worker ret i32 %cond 34*9880d681SAndroid Build Coastguard Worker} 35