| ; RUN: opt < %s -S -loop-unroll -unroll-count=2 | FileCheck %s | |
| ; Checks that "llvm.loop.unroll.disable" is set when | |
| ; unroll with count set by user has been applied. | |
| ; | |
| ; CHECK-LABEL: @foo( | |
| ; CHECK: llvm.loop.unroll.disable | |
| define void @foo(i32* nocapture %a) { | |
| entry: | |
| br label %for.body | |
| for.body: ; preds = %for.body, %entry | |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] | |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv | |
| %0 = load i32, i32* %arrayidx, align 4 | |
| %inc = add nsw i32 %0, 1 | |
| store i32 %inc, i32* %arrayidx, align 4 | |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 | |
| %exitcond = icmp eq i64 %indvars.iv.next, 64 | |
| br i1 %exitcond, label %for.end, label %for.body | |
| for.end: ; preds = %for.body | |
| ret void | |
| } | |