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=c99 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 33 // RUN: echo "\nC++ tests:" 34 // RUN: %clang -x c++ %s -O1 -emit-llvm -S -o %t -std=c++98 35 // RUN: grep "define linkonce_odr i32 @_Z2eiv()" %t 36 // RUN: grep "define linkonce_odr i32 @_Z3foov()" %t 37 // RUN: grep "define i32 @_Z3barv()" %t 38 // RUN: not grep unreferenced %t 39 // RUN: grep "define void @_Z10gnu_inlinev()" %t 40 // RUN: grep "define available_externally void @_Z13gnu_ei_inlinev()" %t 41 ei()42extern __inline int ei() { return 123; } 43 foo()44__inline int foo() { 45 return ei(); 46 } 47 bar()48int bar() { return foo(); } 49 50 unreferenced1()51__inline void unreferenced1() {} unreferenced2()52extern __inline void unreferenced2() {} 53 gnu_inline()54__inline __attribute((__gnu_inline__)) void gnu_inline() {} 55 56 // PR3988 gnu_ei_inline()57extern __inline __attribute__((gnu_inline)) void gnu_ei_inline() {} 58 void (*P)() = gnu_ei_inline; 59 60 // <rdar://problem/6818429> 61 int test1(); test1()62__inline int test1() { return 4; } test2()63__inline int test2() { return 5; } 64 __inline int test2(); 65 int test2(); 66 test_test1()67void test_test1() { test1(); } test_test2()68void test_test2() { test2(); } 69 70 // PR3989 71 extern __inline void test3() __attribute__((gnu_inline)); test3()72__inline void __attribute__((gnu_inline)) test3() {} 73 74 extern int test4(void); test4(void)75extern __inline __attribute__ ((__gnu_inline__)) int test4(void) 76 { 77 return 0; 78 } 79 test_test4()80void test_test4() { test4(); } 81 82 extern __inline int test5(void) __attribute__ ((__gnu_inline__)); test5(void)83extern __inline int __attribute__ ((__gnu_inline__)) test5(void) 84 { 85 return 0; 86 } 87 test_test5()88void test_test5() { test5(); } 89 90 // PR10233 91 test6()92__inline int test6() { return 0; } 93 extern int test6(); 94 95 96 // No PR#, but this once crashed clang in C99 mode due to buggy extern inline 97 // redeclaration detection. test7()98void test7() { } 99 void test7(); 100