llvm-project/clang/test/Sema/attr-coldhot.c

// RUN: %clang_cc1 -fsyntax-only -verify %s

int foo() __attribute__((__hot__));
int bar() __attribute__((__cold__));

int var1 __attribute__((__cold__)); // expected-warning{{'__cold__' attribute only applies to functions}}
int var2 __attribute__((__hot__)); // expected-warning{{'__hot__' attribute only applies to functions}}

int qux() __attribute__((__hot__)) __attribute__((__cold__)); // expected-error{{'__hot__' and 'cold' attributes are not compatible}}
int baz() __attribute__((__cold__)) __attribute__((__hot__)); // expected-error{{'__cold__' and 'hot' attributes are not compatible}}