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1; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s
2target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
3target triple = "powerpc64-unknown-linux-gnu"
4
5define void @foo(i32* %P) #0 {
6entry:
7  %tobool = icmp eq i32* %P, null
8  br i1 %tobool, label %if.end, label %if.then
9
10if.then:                                          ; preds = %entry
11  store i32 0, i32* %P, align 4
12  br label %if.end
13
14if.end:                                           ; preds = %entry, %if.then
15  ret void
16
17; CHECK: @foo
18; CHECK: beqlr
19; CHECK: blr
20}
21
22define void @bar(i32* %P, i32* %Q) #0 {
23entry:
24  %tobool = icmp eq i32* %P, null
25  br i1 %tobool, label %if.else, label %if.then
26
27if.then:                                          ; preds = %entry
28  store i32 0, i32* %P, align 4
29  %tobool1 = icmp eq i32* %Q, null
30  br i1 %tobool1, label %if.end3, label %if.then2
31
32if.then2:                                         ; preds = %if.then
33  store i32 1, i32* %Q, align 4
34  br label %if.end3
35
36if.else:                                          ; preds = %entry
37  store i32 0, i32* %Q, align 4
38  br label %if.end3
39
40if.end3:                                          ; preds = %if.then, %if.then2, %if.else
41  ret void
42
43; CHECK: @bar
44; CHECK: beqlr
45; CHECK: blr
46}
47
48
49@.str0 = private unnamed_addr constant [2 x i8] c"a\00"
50@.str1 = private unnamed_addr constant [2 x i8] c"b\00"
51@.str2 = private unnamed_addr constant [2 x i8] c"c\00"
52@.str3 = private unnamed_addr constant [2 x i8] c"d\00"
53@.str4 = private unnamed_addr constant [2 x i8] c"e\00"
54define i8* @dont_assert(i32 %x) {
55; LLVM would assert due to moving an early return into the jump table block and
56; removing one of its predecessors despite that block ending with an indirect
57; branch.
58entry:
59  switch i32 %x, label %sw.epilog [
60    i32 1, label %return
61    i32 2, label %sw.bb1
62    i32 3, label %sw.bb2
63    i32 4, label %sw.bb3
64    i32 255, label %sw.bb4
65  ]
66sw.bb1: br label %return
67sw.bb2: br label %return
68sw.bb3: br label %return
69sw.bb4: br label %return
70sw.epilog: br label %return
71return:
72  %retval.0 = phi i8* [ null, %sw.epilog ],
73                      [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str4, i64 0, i64 0), %sw.bb4 ],
74                      [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str3, i64 0, i64 0), %sw.bb3 ],
75                      [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str2, i64 0, i64 0), %sw.bb2 ],
76                      [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str1, i64 0, i64 0), %sw.bb1 ],
77                      [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str0, i64 0, i64 0), %entry ]
78  ret i8* %retval.0
79}
80
81attributes #0 = { nounwind }
82