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Fix reading cycle count on non-msvc win-on-aarch64

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BtbN 2024-08-10 20:07:57 +02:00 committed by Luca Boccassi
parent 6aaafe0135
commit b71434140e
1 changed files with 4 additions and 0 deletions
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4
src/clock.cpp
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@ -223,6 +223,10 @@ uint64_t zmq::clock_t::rdtsc ()
((13 & 15) << 3) | // crm
((0 & 7) << 0)); // op2
return _ReadStatusReg (pmccntr_el0);
#elif (defined(_WIN32) && defined(__GNUC__) && defined(__aarch64__))
uint64_t val;
__asm__ volatile("mrs %0, pmccntr_el0" : "=r"(val));
return val;
#elif (defined __GNUC__ && (defined __i386__ || defined __x86_64__))
uint32_t low, high;
__asm__ volatile("rdtsc" : "=a"(low), "=d"(high));