1; PR30213. Check scev expand will generate correct code if the value
2; in ValueOffsetPair is of pointer type.
3; RUN: opt -mtriple=i386-apple-macosx10.12.0 < %s -loop-reduce -S | FileCheck %s
4
5; CHECK: %ptr4.ptr1 = select i1 %cmp.i, i8* %ptr4, i8* %ptr1
6; CHECK-NEXT: %scevgep = getelementptr i8, i8* %ptr4.ptr1, i32 1
7; CHECK-NEXT: br label %while.cond.i
8
9target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
10target triple = "i386-apple-macosx10.12.0"
11
12; Function Attrs: nounwind optsize ssp
13define void @Foo() {
14entry:
15  switch i2 undef, label %sw.epilog102 [
16    i2 -2, label %sw.bb28
17  ]
18
19sw.bb28:                                          ; preds = %entry
20  %0 = load i8*, i8** undef, align 2
21  %ptr1 = getelementptr inbounds i8, i8* undef, i32 -1
22  %ptr4 = getelementptr inbounds i8, i8* %0, i32 -1
23  %cmp.i = icmp ult i8* undef, %0
24  %ptr4.ptr1 = select i1 %cmp.i, i8* %ptr4, i8* %ptr1
25  br label %while.cond.i
26
27while.cond.i:                                     ; preds = %while.cond.i, %sw.bb28
28  %currPtr.1.i = phi i8* [ %incdec.ptr.i, %while.cond.i ], [ %ptr4.ptr1, %sw.bb28 ]
29  %incdec.ptr.i = getelementptr inbounds i8, i8* %currPtr.1.i, i32 1
30  %1 = load i8, i8* %incdec.ptr.i, align 1
31  br label %while.cond.i
32
33sw.epilog102:                                     ; preds = %entry
34  unreachable
35}
36
37