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