mirror of
https://github.com/intel/llvm.git
synced 2026-01-24 08:30:34 +08:00
Reapply #147854 after fixes merged in #151398. Change memory access histogram storage from uint64_t to uint16_t to reduce profile size on disk. This change updates the raw profile format to v5. Also add a histogram test in compiler-rt since we didn't have one before. With this change the histogram memprof raw for the basic test reduces from 75KB -> 20KB.