diff options
| author | Tim Creech <timothy.m.creech@intel.com> | 2024-04-29 02:54:14 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-04-29 14:54:14 +0800 |
| commit | 66274eb9f7e7fc4b023343476c4d066e4413180a (patch) | |
| tree | 78e4f788cf5508ef1d7cb83ef52ce78be9b096dc /clang/lib/CodeGen/CodeGenFunction.cpp | |
| parent | ec6c0a2b7da4a23a33de049ab9a07fd30fff56b8 (diff) | |
| download | llvm-66274eb9f7e7fc4b023343476c4d066e4413180a.zip llvm-66274eb9f7e7fc4b023343476c4d066e4413180a.tar.gz llvm-66274eb9f7e7fc4b023343476c4d066e4413180a.tar.bz2 | |
Improve documented sampling profiler steps to best known methods (#88438)
1. Add `-fdebug-info-for-profiling -funique-internal-linkage-names`,
which improve the usefulness of debug info for profiling.
2. Recommend the use of `br_inst_retired.near_taken:uppp`, which
provides the most precise results on supporting hardware. Mention
`branches:u` as a more portable backup.
Both should portray execution counts better than the default event
(`cycles`) and have a better chance of working as an unprivileged user
due to the `:u` modifier.
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')
0 files changed, 0 insertions, 0 deletions