| 1 | // RUN: %clang_cc1 -verify -fsyntax-only %s |
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| 2 | // RUN: %clang_cc1 -emit-llvm -o %t %s |
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| 3 | |
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| 4 | #include <stddef.h> |
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| 5 | |
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| 6 | // Declare malloc here explicitly so we don't depend on system headers. |
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| 7 | void * malloc(size_t) __attribute((malloc)); |
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| 8 | |
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| 9 | int no_vars __attribute((malloc)); // expected-warning {{attribute only applies to functions}} |
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| 10 | |
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| 11 | void returns_void (void) __attribute((malloc)); // expected-warning {{attribute only applies to return values that are pointers}} |
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| 12 | int returns_int (void) __attribute((malloc)); // expected-warning {{attribute only applies to return values that are pointers}} |
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| 13 | int * returns_intptr(void) __attribute((malloc)); // no-warning |
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| 14 | typedef int * iptr; |
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| 15 | iptr returns_iptr (void) __attribute((malloc)); // no-warning |
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| 16 | |
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| 17 | __attribute((malloc)) void *(*f)(); // expected-warning{{attribute only applies to functions}} |
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| 18 | __attribute((malloc)) int (*g)(); // expected-warning{{attribute only applies to functions}} |
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| 19 | |
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| 20 | __attribute((malloc)) |
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| 21 | void * xalloc(unsigned n) { return malloc(n); } // no-warning |
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| 22 | // RUN: grep 'define .*noalias .* @xalloc(' %t %t |
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| 23 | |
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| 24 | #define malloc_like __attribute((__malloc__)) |
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| 25 | void * xalloc2(unsigned) malloc_like; |
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| 26 | void * xalloc2(unsigned n) { return malloc(n); } |
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| 27 | // RUN: grep 'define .*noalias .* @xalloc2(' %t %t |
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| 28 | |
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| 29 | |
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