1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=aarch64-linux-gnu -O3 -o - %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker@a = external global i8, align 1 4*9880d681SAndroid Build Coastguard Worker@b = external global i8, align 1 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; Test that SUBS is replaced by SUB if condition flags are not used. 7*9880d681SAndroid Build Coastguard Workerdefine i32 @test01() nounwind { 8*9880d681SAndroid Build Coastguard Worker; CHECK: ldrb {{.*}} 9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ldrb {{.*}} 10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: sub {{.*}} 11*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: cmn {{.*}} 12*9880d681SAndroid Build Coastguard Workerentry: 13*9880d681SAndroid Build Coastguard Worker %0 = load i8, i8* @a, align 1 14*9880d681SAndroid Build Coastguard Worker %conv = zext i8 %0 to i32 15*9880d681SAndroid Build Coastguard Worker %1 = load i8, i8* @b, align 1 16*9880d681SAndroid Build Coastguard Worker %conv1 = zext i8 %1 to i32 17*9880d681SAndroid Build Coastguard Worker %s = sub nsw i32 %conv1, %conv 18*9880d681SAndroid Build Coastguard Worker %cmp0 = icmp eq i32 %s, -1 19*9880d681SAndroid Build Coastguard Worker %cmp1 = sext i1 %cmp0 to i8 20*9880d681SAndroid Build Coastguard Worker store i8 %cmp1, i8* @a 21*9880d681SAndroid Build Coastguard Worker ret i32 0 22*9880d681SAndroid Build Coastguard Worker} 23*9880d681SAndroid Build Coastguard Worker 24