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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 
     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