1; RUN: opt -domtree -instcombine -loops -S < %s | FileCheck %s
2; Note: The -loops above can be anything that requires the domtree, and is
3; necessary to work around a pass-manager bug.
4
5target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
6target triple = "x86_64-unknown-linux-gnu"
7
8; Function Attrs: nounwind uwtable
9define void @foo(i32* %a, i32* %b) #0 {
10entry:
11  %ptrint = ptrtoint i32* %a to i64
12  %maskedptr = and i64 %ptrint, 63
13  %maskcond = icmp eq i64 %maskedptr, 0
14  tail call void @llvm.assume(i1 %maskcond)
15  %ptrint1 = ptrtoint i32* %b to i64
16  %maskedptr2 = and i64 %ptrint1, 63
17  %maskcond3 = icmp eq i64 %maskedptr2, 0
18  tail call void @llvm.assume(i1 %maskcond3)
19  br label %for.body
20
21; CHECK-LABEL: @foo
22; CHECK: load i32* {{.*}} align 64
23; CHECK: store i32 {{.*}}  align 64
24; CHECK: ret
25
26for.body:                                         ; preds = %entry, %for.body
27  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
28  %arrayidx = getelementptr inbounds i32* %b, i64 %indvars.iv
29  %0 = load i32* %arrayidx, align 4
30  %add = add nsw i32 %0, 1
31  %arrayidx5 = getelementptr inbounds i32* %a, i64 %indvars.iv
32  store i32 %add, i32* %arrayidx5, align 4
33  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 16
34  %1 = trunc i64 %indvars.iv.next to i32
35  %cmp = icmp slt i32 %1, 1648
36  br i1 %cmp, label %for.body, label %for.end
37
38for.end:                                          ; preds = %for.body
39  ret void
40}
41
42; Function Attrs: nounwind
43declare void @llvm.assume(i1) #1
44
45attributes #0 = { nounwind uwtable }
46attributes #1 = { nounwind }
47
48