+; Don't crash on bitcasts to unsized types.
+; CHECK-LABEL: @test5
+; CHECK: for.body:
+; CHECK: load i32* %c, align 4
+
+%atype = type opaque
+
+; Function Attrs: nounwind uwtable
+define void @test5(i32* nocapture %a, i32* nocapture readonly %b, i32 %n) #0 {
+entry:
+ %cmp6 = icmp sgt i32 %n, 0
+ %ca = alloca i16
+ %cab = bitcast i16* %ca to %atype*
+ %c = bitcast %atype* %cab to i32*
+ br i1 %cmp6, label %for.body, label %for.end
+
+for.body: ; preds = %entry, %for.inc
+ %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
+ %arrayidx = getelementptr inbounds i32* %a, i64 %indvars.iv
+ %0 = load i32* %arrayidx, align 4
+ %cmp1 = icmp sgt i32 %0, 0
+ br i1 %cmp1, label %if.then, label %for.inc
+
+if.then: ; preds = %for.body
+ %1 = load i32* %c, align 4
+ %arrayidx3 = getelementptr inbounds i32* %b, i64 %indvars.iv
+ %2 = load i32* %arrayidx3, align 4
+ %mul = mul nsw i32 %2, %1
+ store i32 %mul, i32* %arrayidx, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body, %if.then
+ %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+ %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+ %exitcond = icmp eq i32 %lftr.wideiv, %n
+ br i1 %exitcond, label %for.end, label %for.body
+
+for.end: ; preds = %for.inc, %entry
+ ret void
+}
+