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1; RUN: opt < %s -callsite-splitting -S | FileCheck %s
2; RUN: opt < %s  -passes='function(callsite-splitting)' -S | FileCheck %s
3
4define i32 @callee(i32*, i32, i32) {
5  ret i32 10
6}
7
8; CHECK-LABEL: @test_preds_equal
9; CHECK-NOT: split
10; CHECK: br i1 %cmp, label %Tail, label %Tail
11define i32 @test_preds_equal(i32* %a, i32 %v, i32 %p) {
12TBB:
13  %cmp = icmp eq i32* %a, null
14  br i1 %cmp, label %Tail, label %Tail
15Tail:
16  %r = call i32 @callee(i32* %a, i32 %v, i32 %p)
17  ret i32 %r
18}
19
20define void @fn1(i16 %p1) {
21entry:
22  ret void
23}
24
25define void @fn2() {
26  ret void
27
28; Unreachable code below
29
30for.inc:                                          ; preds = %for.inc
31  br i1 undef, label %for.end6, label %for.inc
32
33for.end6:                                         ; preds = %for.inc
34  br i1 undef, label %lor.rhs, label %lor.end
35
36lor.rhs:                                          ; preds = %for.end6
37  br label %lor.end
38
39lor.end:                                          ; preds = %for.end6, %lor.rhs
40  call void @fn1(i16 0)
41  ret void
42}
43