1 ; RUN: opt < %s -S -loop-unroll -unroll-count=2 | FileCheck %s 2 ; Checks that "llvm.loop.unroll.disable" is set when 3 ; unroll with count set by user has been applied. 4 ; 5 ; CHECK-LABEL: @foo( 6 ; CHECK: llvm.loop.unroll.disable 7 8 define void @foo(i32* nocapture %a) { 9 entry: 10 br label %for.body 11 12 for.body: ; preds = %for.body, %entry 13 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 14 %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv 15 %0 = load i32, i32* %arrayidx, align 4 16 %inc = add nsw i32 %0, 1 17 store i32 %inc, i32* %arrayidx, align 4 18 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 19 %exitcond = icmp eq i64 %indvars.iv.next, 64 20 br i1 %exitcond, label %for.end, label %for.body 21 22 for.end: ; preds = %for.body 23 ret void 24 } 25 26
