xref: /llvm-project/llvm/test/Transforms/SimpleLoopUnswitch/callbr.ll (revision 534b9246a20498e2cd4d2b9a512e7c5e75c83bc7)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -passes='simple-loop-unswitch<nontrivial>' %s -S | FileCheck %s
3
4declare i1 @foo()
5
6define i32 @mem_cgroup_node_nr_lru_pages(i1 %tree) {
7; CHECK-LABEL: @mem_cgroup_node_nr_lru_pages(
8; CHECK-NEXT:  entry:
9; CHECK-NEXT:    br i1 [[TREE:%.*]], label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]]
10; CHECK:       entry.split.us:
11; CHECK-NEXT:    br label [[FOR_COND_US:%.*]]
12; CHECK:       for.cond.us:
13; CHECK-NEXT:    br label [[IF_END8_US:%.*]]
14; CHECK:       if.end8.us:
15; CHECK-NEXT:    br label [[FOR_COND_US]]
16; CHECK:       entry.split:
17; CHECK-NEXT:    br label [[FOR_COND:%.*]]
18; CHECK:       for.cond:
19; CHECK-NEXT:    br label [[IF_ELSE:%.*]]
20; CHECK:       if.else:
21; CHECK-NEXT:    callbr void asm sideeffect ".pushsection __jump_table, \22aw\22 \0A\09.popsection \0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()
22; CHECK-NEXT:    to label [[IF_END8:%.*]] [label %for.cond5.preheader]
23; CHECK:       for.cond5.preheader:
24; CHECK-NEXT:    br label [[FOR_COND5:%.*]]
25; CHECK:       for.cond5:
26; CHECK-NEXT:    [[CALL6:%.*]] = call i1 @foo()
27; CHECK-NEXT:    br i1 [[CALL6]], label [[IF_END8_LOOPEXIT:%.*]], label [[FOR_COND5]]
28; CHECK:       if.end8.loopexit:
29; CHECK-NEXT:    br label [[IF_END8]]
30; CHECK:       if.end8:
31; CHECK-NEXT:    br label [[FOR_COND]]
32;
33entry:
34  br label %for.cond
35
36for.cond:                                         ; preds = %if.end8, %entry
37  br i1 %tree, label %if.end8, label %if.else
38
39if.else:                                          ; preds = %for.cond
40  callbr void asm sideeffect ".pushsection __jump_table,  \22aw\22 \0A\09.popsection \0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()
41  to label %if.end8 [label %for.cond5]
42
43for.cond5:                                        ; preds = %if.else, %for.cond5
44  %call6 = call i1 @foo()
45  br i1 %call6, label %if.end8.loopexit, label %for.cond5
46
47if.end8.loopexit:                                 ; preds = %for.cond5
48  br label %if.end8
49
50if.end8:                                          ; preds = %if.end8.loopexit, %if.else, %for.cond
51  br label %for.cond
52}
53
54