1; RUN: llc < %s -mtriple=armv4t--linux-androideabi -stop-after=if-converter | FileCheck %s
2; Fix a bug triggered in IfConverterTriangle when CvtBB has multiple
3; predecessors.
4; PR18752
5
6%classK = type { i8, %classF }
7%classF = type { i8 }
8%classL = type { %classG, i32, i32 }
9%classG = type { %classL* }
10%classM2 = type { %classL }
11
12define zeroext i1 @test(%classK* %this, %classL* nocapture readnone %p0, %classM2* nocapture readnone %p1, %classM2* nocapture readnone %p2, i32 %a0) align 2 {
13entry:
14  br i1 undef, label %for.end, label %for.body
15
16; Before if conversion, we have
17; for.body -> lor.lhs.false.i (50%)
18;          -> for.cond.backedge (50%)
19; lor.lhs.false.i -> for.cond.backedge (100%)
20;                 -> cond.false.i (0%)
21; Afer if conversion, we have
22; for.body -> for.cond.backedge (100%)
23;          -> cond.false.i (0%)
24; CHECK: bb.1.for.body:
25; CHECK: successors: %bb.2(0x80000000), %bb.4(0x00000001)
26for.body:
27  br i1 undef, label %for.cond.backedge, label %lor.lhs.false.i, !prof !1
28
29for.cond.backedge:
30  %tobool = icmp eq %classL* %p0, null
31  br i1 %tobool, label %for.end, label %for.body
32
33lor.lhs.false.i:
34  %tobool.i.i7 = icmp eq i32 %a0, 0
35  br i1 %tobool.i.i7, label %for.cond.backedge, label %cond.false.i
36
37cond.false.i:
38  call void @_Z3fn1v()
39  unreachable
40
41for.end:
42  %tobool.i.i9 = icmp eq i32 %a0, 32
43  br i1 %tobool.i.i9, label %if.else.i.i, label %if.then.i.i
44
45if.then.i.i:
46  store %classL* null, %classL** undef, align 4
47  br label %_ZN1M6spliceEv.exit
48
49if.else.i.i:
50  store %classL* null, %classL** null, align 4
51  br label %_ZN1M6spliceEv.exit
52
53_ZN1M6spliceEv.exit:
54  %LIS = getelementptr inbounds %classK, %classK* %this, i32 0, i32 1
55  call void @_ZN1F10handleMoveEb(%classF* %LIS, i1 zeroext false)
56  unreachable
57}
58
59declare %classL* @_ZN1M1JI1LS1_EcvPS1_Ev(%classM2*)
60declare void @_ZN1F10handleMoveEb(%classF*, i1 zeroext)
61declare void @_Z3fn1v()
62
63!0 = !{!"clang version 3.5"}
64!1 = !{!"branch_weights", i32 62, i32 62}
65