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