1; RUN: opt -loop-load-elim -S %s | FileCheck %s
2; RUN: opt -passes=loop-load-elim -S %s | FileCheck %s
3; REQUIRES: asserts
4
5target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
6target triple = "x86_64-unknown-linux-gnu"
7
8; Make sure it does not crash with assert.
9define void @test() {
10; CHECK-LABEL: test
11
12bb:
13  br label %bb1
14
15bb1:                                              ; preds = %bb6, %bb1, %bb
16  %tmp = phi i32 [ undef, %bb ], [ 0, %bb1 ], [ %tmp3, %bb6 ]
17  br i1 undef, label %bb1, label %bb2
18
19bb2:                                              ; preds = %bb1
20  %tmp3 = add i32 %tmp, 1
21  %tmp4 = icmp ult i32 %tmp, undef
22  br i1 %tmp4, label %bb6, label %bb5
23
24bb5:                                              ; preds = %bb2
25  ret void
26
27bb6:                                              ; preds = %bb2
28  br i1 undef, label %bb7, label %bb1
29
30bb7:                                              ; preds = %bb7, %bb6
31  %tmp8 = phi i32 [ %tmp15, %bb7 ], [ %tmp3, %bb6 ]
32  %tmp9 = phi i32 [ %tmp8, %bb7 ], [ %tmp, %bb6 ]
33  %tmp10 = zext i32 %tmp9 to i64
34  %tmp11 = getelementptr inbounds float, float addrspace(1)* null, i64 %tmp10
35  %tmp12 = load float, float addrspace(1)* %tmp11, align 4
36  %tmp13 = zext i32 %tmp8 to i64
37  %tmp14 = getelementptr inbounds float, float addrspace(1)* null, i64 %tmp13
38  store float 1.000000e+00, float addrspace(1)* %tmp14, align 4
39  %tmp15 = add nuw nsw i32 %tmp8, 1
40  %tmp16 = icmp sgt i32 %tmp8, 78
41  br i1 %tmp16, label %bb17, label %bb7
42
43bb17:                                             ; preds = %bb7
44  unreachable
45}
46