xref: /llvm-project/llvm/test/CodeGen/X86/lsr-crash-empty-uses.ll (revision 2b63077cfa13095b3e64f79fe825cc85ca9da7be)
1; RUN: llc --start-before loop-reduce --stop-after loop-reduce %s -o - | FileCheck %s
2target datalayout = "e-m:e-p:32:32-i64:64-n32-S128"
3target triple = "x86_64-unknown-linux-gnu"
4
5; CHECK-LABEL: @hoge
6define void @hoge(i1 %arg) {
7bb:
8  %tmp = sext i32 undef to i64
9  %tmp3 = sub nsw i64 0, %tmp
10  br label %bb4
11
12bb4:                                              ; preds = %bb20, %bb
13  %tmp5 = getelementptr inbounds double, ptr undef, i64 undef
14  %tmp6 = getelementptr inbounds double, ptr %tmp5, i64 %tmp3
15  br label %bb7
16
17bb7:                                              ; preds = %bb7, %bb4
18  %tmp8 = phi ptr [ %tmp10, %bb7 ], [ %tmp6, %bb4 ]
19  %tmp9 = load double, ptr %tmp8
20  %tmp10 = getelementptr inbounds double, ptr %tmp8, i64 1
21  br i1 true, label %bb11, label %bb7
22
23bb11:                                             ; preds = %bb7
24  br i1 %arg, label %bb20, label %bb12
25
26bb12:                                             ; preds = %bb11
27  br label %bb13
28
29bb13:                                             ; preds = %bb13, %bb12
30  %tmp14 = phi ptr [ %tmp18, %bb13 ], [ %tmp10, %bb12 ]
31  %tmp15 = load double, ptr %tmp14, align 8
32  %tmp16 = getelementptr inbounds double, ptr %tmp14, i64 1
33  %tmp17 = load double, ptr %tmp16, align 8
34  %tmp18 = getelementptr inbounds double, ptr %tmp14, i64 8
35  br i1 true, label %bb19, label %bb13
36
37bb19:                                             ; preds = %bb13
38  br label %bb20
39
40bb20:                                             ; preds = %bb19, %bb11
41  br label %bb4
42}
43