llvm-project.git/compiler-rt/lib/memprof/tests/histogram_encoding.cpp, branch main

Reapply "[MemProf] Change histogram storage from uint64_t to uint16_t… (#151431)

2025-07-31T01:28:53+00:00

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.

Revert "[MemProf] Change histogram storage from uint64_t to uint16_t" (#151382)

2025-07-30T19:36:45+00:00

Reverts llvm/llvm-project#147854

Test failure when building with gcc.
https://lab.llvm.org/buildbot/#/builders/174/builds/21989

[MemProf] Change histogram storage from uint64_t to uint16_t (#147854)

2025-07-30T18:52:31+00:00

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.