1; RUN: llvm-as <%s >%t1
2; RUN: llvm-lto -exported-symbol=_uses_puts -exported-symbol=_uses_printf -o - %t1 | \
3; RUN: llvm-nm - | \
4; RUN: FileCheck %s
5; rdar://problem/16165191
6; runtime library implementations should not be renamed
7
8target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
9target triple = "x86_64-apple-darwin11"
10
11@str = private unnamed_addr constant [13 x i8] c"hello world\0A\00"
12
13; CHECK-NOT: U _puts
14; CHECK: T _uses_printf
15; CHECK: T _uses_puts
16define i32 @uses_puts(i32 %i) {
17entry:
18  %s = call i8* @foo(i32 %i)
19  %ret = call i32 @puts(i8* %s)
20  ret i32 %ret
21}
22define i32 @uses_printf(i32 %i) {
23entry:
24  %s = getelementptr [13 x i8], [13 x i8]* @str, i64 0, i64 0
25  call i32 (i8*, ...) @printf(i8* %s)
26  ret i32 0
27}
28
29define hidden i32 @printf(i8* readonly nocapture %fmt, ...) {
30entry:
31  %ret = call i32 @bar(i8* %fmt)
32  ret i32 %ret
33}
34define hidden i32 @puts(i8* %s) {
35entry:
36  %ret = call i32 @bar(i8* %s)
37  ret i32 %ret
38}
39
40declare i8* @foo(i32)
41declare i32 @bar(i8*)
42