derek.holloway
7502bf64a4
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45 lines
1.9 KiB
C
45 lines
1.9 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsyntax-only -verify %s -fms-extensions
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// RUN: %clang_cc1 -triple i386-unknown-unknown -fsyntax-only -verify %s -fms-extensions
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void f(void) {
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(void)_byteswap_ushort(42); // expected-error{{call to undeclared library function '_byteswap_ushort'}} \
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// expected-note{{include the header <stdlib.h> or explicitly provide a declaration for '_byteswap_ushort'}}
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(void)_byteswap_uint64(42LL); // expected-error{{call to undeclared library function '_byteswap_uint64'}} \
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// expected-note{{include the header <stdlib.h> or explicitly provide a declaration for '_byteswap_uint64'}}
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}
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void _byteswap_ulong(void); // expected-warning{{incompatible redeclaration of library function '_byteswap_ulong'}} \
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// expected-note{{'_byteswap_ulong' is a builtin}}
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unsigned short _byteswap_ushort(unsigned short);
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unsigned long long _byteswap_uint64(unsigned long long);
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void g(void) {
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(void)_byteswap_ushort(42);
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(void)_byteswap_uint64(42LL);
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}
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#if defined(__x86_64__)
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void h(void) {
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(void)__mulh(21, 2); // expected-error{{call to undeclared library function '__mulh'}} \
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// expected-note{{include the header <intrin.h> or explicitly provide a declaration for '__mulh'}}
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(void)__umulh(21, 2); // expected-error{{call to undeclared library function '__umulh'}} \
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// expected-note{{include the header <intrin.h> or explicitly provide a declaration for '__umulh'}}
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}
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long long __mulh(long long, long long);
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unsigned long long __umulh(unsigned long long, unsigned long long);
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void i(void) {
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(void)__mulh(21, 2);
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(void)__umulh(21, 2);
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}
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#endif
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#if defined(i386)
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void h(void) {
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(void)__mulh(21LL, 2LL); // expected-error{{call to undeclared function '__mulh'; ISO C99 and later do not support implicit function declarations}}
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(void)__umulh(21ULL, 2ULL); // expected-error{{call to undeclared function '__umulh'; ISO C99 and later do not support implicit function declarations}}
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}
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#endif
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