jhuber6 wrote: > Are we assuming any particular relationship to __builtin_readcyclecounter in > terms of scales etc? > > __builtin_readsteadycounter could be used to access x86 MPERF clock counters, > but to access the corresponding APERF clock we'd then need a > __builtin_readvariablecounter equivalent (__builtin_readcyclecounter gives > the separate RDTSC clock value)
Not currently at least. The idea is just to expose the counter that has a fixed tick rate, compared to the cycle counter which is variable. https://github.com/llvm/llvm-project/pull/81331 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
