inline.c revision 93ab6bf534fb6c26563c00f28a8fc5581bb71dfd 
1// RUN: echo "GNU89 tests:"
2// RUN: %clang %s -target i386-unknown-unknown -O1 -emit-llvm -S -o - -std=gnu89 | FileCheck %s --check-prefix=CHECK1
3// CHECK1-LABEL: define i32 @foo()
4// CHECK1-LABEL: define i32 @bar()
5// CHECK1-LABEL: define void @unreferenced1()
6// CHECK1-NOT: unreferenced2
7// CHECK1-LABEL: define void @gnu_inline()
8// CHECK1-LABEL: define i32 @test1
9// CHECK1-LABEL: define i32 @test2
10// CHECK1-LABEL: define void @test3()
11// CHECK1-LABEL: define available_externally i32 @test4
12// CHECK1-LABEL: define available_externally i32 @test5
13// CHECK1-LABEL: define i32 @test6
14// CHECK1-LABEL: define void @test7
15// CHECK1: define i{{..}} @strlcpy
16// CHECK1-NOT: test9
17// CHECK1-LABEL: define void @testA
18// CHECK1-LABEL: define void @testB
19// CHECK1-LABEL: define void @testC
20// CHECK1-LABEL: define available_externally void @gnu_ei_inline()
21// CHECK1-LABEL: define available_externally i32 @ei()
22
23// RUN: echo "C99 tests:"
24// RUN: %clang %s -target i386-unknown-unknown -O1 -emit-llvm -S -o - -std=gnu99 | FileCheck %s --check-prefix=CHECK2
25// CHECK2-LABEL: define i32 @ei()
26// CHECK2-LABEL: define i32 @bar()
27// CHECK2-NOT: unreferenced1
28// CHECK2-LABEL: define void @unreferenced2()
29// CHECK2-LABEL: define void @gnu_inline()
30// CHECK2-LABEL: define i32 @test1
31// CHECK2-LABEL: define i32 @test2
32// CHECK2-LABEL: define void @test3
33// CHECK2-LABEL: define available_externally i32 @test4
34// CHECK2-LABEL: define available_externally i32 @test5
35// CHECK2-LABEL: define i32 @test6
36// CHECK2-LABEL: define void @test7
37// CHECK2: define available_externally i{{..}} @strlcpy
38// CHECK2-LABEL: define void @test9
39// CHECK2-LABEL: define void @testA
40// CHECK2-LABEL: define void @testB
41// CHECK2-LABEL: define void @testC
42// CHECK2-LABEL: define available_externally void @gnu_ei_inline()
43// CHECK2-LABEL: define available_externally i32 @foo()
44
45// RUN: echo "C++ tests:"
46// RUN: %clang -x c++ %s -target i386-unknown-unknown -O1 -emit-llvm -S -o - -std=c++98 | FileCheck %s --check-prefix=CHECK3
47// CHECK3-LABEL: define i32 @_Z3barv()
48// CHECK3-LABEL: define linkonce_odr i32 @_Z3foov()
49// CHECK3-NOT: unreferenced
50// CHECK3-LABEL: define void @_Z10gnu_inlinev()
51// CHECK3-LABEL: define available_externally void @_Z13gnu_ei_inlinev()
52// CHECK3-LABEL: define linkonce_odr i32 @_Z2eiv()
53
54// RUN: echo "MS C Mode tests:"
55// RUN: %clang %s -target i386-unknown-unknown -O1 -emit-llvm -S -o - -std=c99 -fms-compatibility | FileCheck %s --check-prefix=CHECK4
56// CHECK4-LABEL: define i32 @bar()
57// CHECK4-LABEL: define void @gnu_inline()
58// CHECK4-LABEL: define available_externally void @gnu_ei_inline()
59// CHECK4-LABEL: define linkonce_odr i32 @foo()
60// CHECK4-NOT: unreferenced
61// CHECK4-LABEL: define linkonce_odr i32 @ei()
62
63extern __inline int ei() { return 123; }
64
65__inline int foo() {
66  return ei();
67}
68
69int bar() { return foo(); }
70
71
72__inline void unreferenced1() {}
73extern __inline void unreferenced2() {}
74
75__inline __attribute((__gnu_inline__)) void gnu_inline() {}
76
77// PR3988
78extern __inline __attribute__((gnu_inline)) void gnu_ei_inline() {}
79void (*P)() = gnu_ei_inline;
80
81// <rdar://problem/6818429>
82int test1();
83__inline int test1() { return 4; }
84__inline int test2() { return 5; }
85__inline int test2();
86int test2();
87
88void test_test1() { test1(); }
89void test_test2() { test2(); }
90
91// PR3989
92extern __inline void test3() __attribute__((gnu_inline));
93__inline void __attribute__((gnu_inline)) test3() {}
94
95extern int test4(void);
96extern __inline __attribute__ ((__gnu_inline__)) int test4(void)
97{
98  return 0;
99}
100
101void test_test4() { test4(); }
102
103extern __inline int test5(void)  __attribute__ ((__gnu_inline__));
104extern __inline int __attribute__ ((__gnu_inline__)) test5(void)
105{
106  return 0;
107}
108
109void test_test5() { test5(); }
110
111// PR10233
112
113__inline int test6() { return 0; }
114extern int test6();
115
116
117// No PR#, but this once crashed clang in C99 mode due to buggy extern inline
118// redeclaration detection.
119void test7() { }
120void test7();
121
122// PR11062; the fact that the function is named strlcpy matters here.
123inline __typeof(sizeof(int)) strlcpy(char *dest, const char *src, __typeof(sizeof(int)) size) { return 3; }
124void test8() { strlcpy(0,0,0); }
125
126// PR10657; the test crashed in C99 mode
127extern inline void test9() { }
128void test9();
129
130inline void testA() {}
131void testA();
132
133void testB();
134inline void testB() {}
135extern void testB();
136
137extern inline void testC() {}
138inline void testC();
139