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32 lines
1.3 KiB
C++
32 lines
1.3 KiB
C++
// RUN: %clang_cc1 -triple %ms_abi_triple -Wunused -x c -verify %s
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// RUN: %clang_cc1 -triple %ms_abi_triple -Wunused -verify=expected,cxx %s
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#ifdef __cplusplus
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extern "C" {
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#endif
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static int f(void) { return 42; } // cxx-warning{{unused function 'f'}}
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int g(void) __attribute__((alias("f")));
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static int foo [] = { 42, 0xDEAD }; // cxx-warning{{variable 'foo' is not needed and will not be emitted}}
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extern typeof(foo) bar __attribute__((unused, alias("foo")));
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static int __attribute__((overloadable)) f0(int x) { return x; } // expected-warning{{unused function 'f0'}}
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static float __attribute__((overloadable)) f0(float x) { return x; } // expected-warning{{unused function 'f0'}}
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int g0(void) __attribute__((alias("?f0@@YAHH@Z")));
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#ifdef __cplusplus
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/// https://github.com/llvm/llvm-project/issues/88593
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/// We report a warning in C++ mode because the internal linkage `resolver` gets
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/// mangled as it does not have a language linkage. GCC does not mangle
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/// `resolver` or report a warning.
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static int f1() { return 42; } // cxx-warning{{unused function 'f1'}}
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int g1(void) __attribute__((alias("?f1@@YAHXZ")));
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}
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namespace ns {
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static int f3(int) { return 42; } // cxx-warning{{unused function 'f3'}}
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static int f3() { return 42; } // cxx-warning{{unused function 'f3'}}
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int g3() __attribute__((alias("?f3@ns@@YAHXZ")));
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}
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#endif
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