56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
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// RUN: %clang_cc1 -fsyntax-only %s -verify -pedantic -std=c99
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// RUN: %clang_cc1 -fsyntax-only %s -verify -pedantic -std=c11
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// RUN: %clang_cc1 -fsyntax-only %s -verify -pedantic -std=c17
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// RUN: %clang_cc1 -fsyntax-only %s -verify -pedantic
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#if __STDC_VERSION__ >= 201112L
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// expected-no-diagnostics
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#endif
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// Math stuff
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float g0 = __builtin_huge_val();
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double g1 = __builtin_huge_valf();
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long double g2 = __builtin_huge_vall();
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float g3 = __builtin_inf();
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double g4 = __builtin_inff();
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long double g5 = __builtin_infl();
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// GCC misc stuff
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extern int f();
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int h0 = __builtin_types_compatible_p(int,float);
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//int h1 = __builtin_choose_expr(1, 10, f());
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//int h2 = __builtin_expect(0, 0);
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int h3 = __builtin_bswap16(0x1234) == 0x3412 ? 1 : f();
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int h4 = __builtin_bswap32(0x1234) == 0x34120000 ? 1 : f();
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int h5 = __builtin_bswap64(0x1234) == 0x3412000000000000 ? 1 : f();
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short somefunc();
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short t = __builtin_constant_p(5353) ? 42 : somefunc();
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// The calls to _Static_assert and _Generic produce warnings if the compiler default standard is < c11
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#if __STDC_VERSION__ < 201112L
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// expected-warning@+9 {{'_Static_assert' is a C11 extension}}
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// expected-warning@+9 {{'_Static_assert' is a C11 extension}}
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// expected-warning@+9 {{'_Static_assert' is a C11 extension}}
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// expected-warning@+9 {{'_Static_assert' is a C11 extension}} expected-warning@+9 {{'_Generic' is a C11 extension}}
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// expected-warning@+9 {{'_Static_assert' is a C11 extension}} expected-warning@+9 {{'_Generic' is a C11 extension}}
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// expected-warning@+9 {{'_Static_assert' is a C11 extension}} expected-warning@+9 {{'_Generic' is a C11 extension}}
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#endif
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// PR44684
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_Static_assert((__builtin_clz)(1u) >= 15, "");
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_Static_assert((__builtin_popcount)(1u) == 1, "");
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_Static_assert((__builtin_ctz)(2u) == 1, "");
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_Static_assert(_Generic(1u,unsigned:__builtin_clz)(1u) >= 15, "");
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_Static_assert(_Generic(1u,unsigned:__builtin_popcount)(1u) == 1, "");
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_Static_assert(_Generic(1u,unsigned:__builtin_ctz)(2u) == 1, "");
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#if __STDC_VERSION__ < 201112L
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// expected-warning@+3 {{'_Static_assert' is a C11 extension}}
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#endif
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__SIZE_TYPE__ strlen(const char*);
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_Static_assert((__builtin_constant_p(1) ? (***&strlen)("foo") : 0) == 3, "");
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