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Justine Tunney 2020-06-15 07:18:57 -07:00
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libc/testlib/ezbench.h Normal file
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#ifndef COSMOPOLITAN_LIBC_TESTLIB_EZBENCH_H_
#define COSMOPOLITAN_LIBC_TESTLIB_EZBENCH_H_
#include "libc/macros.h"
#include "libc/testlib/bench.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
#define EZBENCH(INIT, EXPR) EZBENCH2(#EXPR, INIT, EXPR)
#define EZBENCH2(NAME, INIT, EXPR) \
do { \
uint64_t Control, Speculative, MemoryStrict; \
Control = __testlib_ezbenchcontrol(); \
INIT; \
EXPR; \
Speculative = BENCHLOOP(__startbench, __endbench, 128, INIT, (EXPR)); \
MemoryStrict = BENCHLOOP(__startbench_m, __endbench_m, 8, ({ \
INIT; \
thrashcodecache(); \
}), \
(EXPR)); \
Control = MIN(Control, MIN(Speculative, MemoryStrict)); \
__testlib_ezbenchreport(NAME, Speculative - Control, \
MemoryStrict - Control); \
} while (0)
void __testlib_ezbenchreport(const char *, uint64_t, uint64_t);
uint64_t __testlib_ezbenchcontrol(void);
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_TESTLIB_EZBENCH_H_ */