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| author | Hans Wennborg <hans@hanshq.net> | 2019-08-26 11:49:09 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2019-08-26 11:49:09 +0000 |
| commit | 014ace892f0aefee0ccc6c6dc7c2f332a3a8b4f3 (patch) | |
| tree | ad2e42667840593b9bddbef7eb6c23788ea9b422 | |
| parent | 242597c234867778f57b6b0054e88c4b7b64f236 (diff) | |
Release notes: -ftime-trace
By Aras Pranckevicius!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_90@369895 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | docs/ReleaseNotes.rst | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index f715abaddc..f57680993d 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -70,7 +70,12 @@ Non-comprehensive list of changes in this release New Compiler Flags ------------------ -- ... +- ``-ftime-trace`` and ``ftime-trace-granularity=N`` + Emits flame chart style compilation time report in chrome://tracing and + speedscope.app compatible format. A trace .json file is written next to the + compiled object file, containing hierarchical time information about frontend + activities (file parsing, template instantiation) and backend activities + (modules and functions being optimized, optimization passes). Deprecated Compiler Flags ------------------------- |