llvm-project/clang/test/CodeGenCXX/target-features-error.cpp

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// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -S -verify -o -
struct S {
__attribute__((always_inline, target("avx512f")))
void foo(){}
__attribute__((always_inline, target("avx512f")))
operator int(){ return 0; }
__attribute__((always_inline, target("avx512f")))
void operator()(){ }
};
void usage(S & s) {
s.foo(); // expected-error {{'foo' requires target feature 'avx512f'}}
(void)(int)s; // expected-error {{'operator int' requires target feature 'avx512f'}}
s(); // expected-error {{'operator()' requires target feature 'avx512f'}}
}