| ; RUN: opt < %s -S -passes=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(ptr 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, ptr %a, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %inc = add nsw i32 %0, 1 |
| store i32 %inc, ptr %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 |
| } |
| |