| ; Check that we don't crash on corner cases. |
| ; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-threshold=10 -unroll-percent-dynamic-cost-saved-threshold=20 -o /dev/null |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define void @foo1() { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %phi = phi i64 [ 0, %entry ], [ %inc, %for.body ] |
| %idx = zext i32 undef to i64 |
| %add.ptr = getelementptr inbounds i64, i64* null, i64 %idx |
| %inc = add nuw nsw i64 %phi, 1 |
| %cmp = icmp ult i64 %inc, 999 |
| br i1 %cmp, label %for.body, label %for.exit |
| |
| for.exit: |
| ret void |
| } |
| |
| define void @foo2() { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %phi = phi i64 [ 0, %entry ], [ %inc, %for.body ] |
| %x = getelementptr i32, <4 x i32*> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1> |
| %inc = add nuw nsw i64 %phi, 1 |
| %cmp = icmp ult i64 %inc, 999 |
| br i1 %cmp, label %for.body, label %for.exit |
| |
| for.exit: |
| ret void |
| } |
