1 ; RUN: opt < %s -S -loop-unroll -unroll-allow-partial -unroll-max-count=1 | FileCheck %s 2 ; Checks that unroll MaxCount is honored. 3 ; 4 ; CHECK-LABEL: @foo( 5 ; CHECK-LABEL: for.body: 6 ; CHECK-NEXT: phi 7 ; CHECK-NEXT: getelementptr 8 ; CHECK-NEXT: load 9 ; CHECK-NEXT: add 10 ; CHECK-NEXT: store 11 ; CHECK-NEXT: add 12 ; CHECK-NEXT: icmp 13 ; CHECK-NEXT: br 14 define void @foo(i32* nocapture %a) { 15 entry: 16 br label %for.body 17 18 for.body: ; preds = %for.body, %entry 19 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 20 %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv 21 %0 = load i32, i32* %arrayidx, align 4 22 %inc = add nsw i32 %0, 1 23 store i32 %inc, i32* %arrayidx, align 4 24 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 25 %exitcond = icmp eq i64 %indvars.iv.next, 1024 26 br i1 %exitcond, label %for.end, label %for.body 27 28 for.end: ; preds = %for.body 29 ret void 30 } 31 32
