Author: hans
Date: Mon Aug 26 04:49:09 2019
New Revision: 369895
URL: http://llvm.org/viewvc/llvm-project?rev=369895&view=rev
Log:
Release notes: -ftime-trace
By Aras Pranckevicius!
Modified:
cfe/branches/release_90/docs/ReleaseNotes.rst
Modified: cfe/branches/release_90/docs/ReleaseNotes.rst
URL:
http://llvm.org/viewvc/llvm-project/cfe/branches/release_90/docs/ReleaseNotes.rst?rev=369895&r1=369894&r2=369895&view=diff
==============================================================================
--- cfe/branches/release_90/docs/ReleaseNotes.rst (original)
+++ cfe/branches/release_90/docs/ReleaseNotes.rst Mon Aug 26 04:49:09 2019
@@ -70,7 +70,12 @@ Non-comprehensive list of changes in thi
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
-------------------------
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