1 // RUN: echo "GNU89 tests:"
2 // RUN: %clang %s -O1 -emit-llvm -S -o %t -std=gnu89
3 // RUN: grep "define available_externally i32 @ei()" %t
4 // RUN: grep "define i32 @foo()" %t
5 // RUN: grep "define i32 @bar()" %t
6 // RUN: grep "define void @unreferenced1()" %t
7 // RUN: not grep unreferenced2 %t
8 // RUN: grep "define void @gnu_inline()" %t
9 // RUN: grep "define available_externally void @gnu_ei_inline()" %t
10 // RUN: grep "define i32 @test1" %t
11 // RUN: grep "define i32 @test2" %t
12 // RUN: grep "define void @test3()" %t
13 // RUN: grep "define available_externally i32 @test4" %t
14 // RUN: grep "define available_externally i32 @test5" %t
15 // RUN: grep "define i32 @test6" %t
16 
17 // RUN: echo "\nC99 tests:"
18 // RUN: %clang %s -O1 -emit-llvm -S -o %t -std=gnu99
19 // RUN: grep "define i32 @ei()" %t
20 // RUN: grep "define available_externally i32 @foo()" %t
21 // RUN: grep "define i32 @bar()" %t
22 // RUN: not grep unreferenced1 %t
23 // RUN: grep "define void @unreferenced2()" %t
24 // RUN: grep "define void @gnu_inline()" %t
25 // RUN: grep "define available_externally void @gnu_ei_inline()" %t
26 // RUN: grep "define i32 @test1" %t
27 // RUN: grep "define i32 @test2" %t
28 // RUN: grep "define void @test3" %t
29 // RUN: grep "define available_externally i32 @test4" %t
30 // RUN: grep "define available_externally i32 @test5" %t
31 // RUN: grep "define i32 @test6" %t
32 // RUN: grep "define available_externally i.. @strlcpy" %t
33 
34 // RUN: echo "\nC++ tests:"
35 // RUN: %clang -x c++ %s -O1 -emit-llvm -S -o %t -std=c++98
36 // RUN: grep "define linkonce_odr i32 @_Z2eiv()" %t
37 // RUN: grep "define linkonce_odr i32 @_Z3foov()" %t
38 // RUN: grep "define i32 @_Z3barv()" %t
39 // RUN: not grep unreferenced %t
40 // RUN: grep "define void @_Z10gnu_inlinev()" %t
41 // RUN: grep "define available_externally void @_Z13gnu_ei_inlinev()" %t
42 
43 extern __inline int ei() { return 123; }
44 
45 __inline int foo() {
46   return ei();
47 }
48 
49 int bar() { return foo(); }
50 
51 
52 __inline void unreferenced1() {}
53 extern __inline void unreferenced2() {}
54 
55 __inline __attribute((__gnu_inline__)) void gnu_inline() {}
56 
57 // PR3988
58 extern __inline __attribute__((gnu_inline)) void gnu_ei_inline() {}
59 void (*P)() = gnu_ei_inline;
60 
61 // <rdar://problem/6818429>
62 int test1();
63 __inline int test1() { return 4; }
64 __inline int test2() { return 5; }
65 __inline int test2();
66 int test2();
67 
68 void test_test1() { test1(); }
69 void test_test2() { test2(); }
70 
71 // PR3989
72 extern __inline void test3() __attribute__((gnu_inline));
73 __inline void __attribute__((gnu_inline)) test3() {}
74 
75 extern int test4(void);
76 extern __inline __attribute__ ((__gnu_inline__)) int test4(void)
77 {
78   return 0;
79 }
80 
81 void test_test4() { test4(); }
82 
83 extern __inline int test5(void)  __attribute__ ((__gnu_inline__));
84 extern __inline int __attribute__ ((__gnu_inline__)) test5(void)
85 {
86   return 0;
87 }
88 
89 void test_test5() { test5(); }
90 
91 // PR10233
92 
93 __inline int test6() { return 0; }
94 extern int test6();
95 
96 
97 // No PR#, but this once crashed clang in C99 mode due to buggy extern inline
98 // redeclaration detection.
99 void test7() { }
100 void test7();
101 
102 // PR11062; the fact that the function is named strlcpy matters here.
103 inline __typeof(sizeof(int)) strlcpy(char *dest, const char *src, __typeof(sizeof(int)) size) { return 3; }
104 void test8() { strlcpy(0,0,0); }
105