compiler-rt/test/safestack/utils.h - third_party/llvm-project - Git at Google

 #ifndef UTILS_H
 #define UTILS_H

 static inline void break_optimization(void *arg) {
   __asm__ __volatile__("" : : "r" (arg) : "memory");
 }

 #endif
	#ifndef UTILS_H
	#define UTILS_H

	static inline void break_optimization(void *arg) {
	__asm__ __volatile__("" : : "r" (arg) : "memory");
	}

	#endif