src/llvm/tools/clang/test/CodeGen/inline.c

   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();