[PATCH] D68260: Decrease the verbosity of the -ftime-trace optionAnd move the relevant information in the doc.

Sylvestre Ledru via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Tue Oct 1 00:31:25 PDT 2019


sylvestre.ledru created this revision.
sylvestre.ledru added a reviewer: anton-afanasyev.
Herald added a project: clang.

Currently, building a large software like Firefox shows
'Use chrome://tracing or Speedscope App (https://www.speedscope.app) for flamegraph visualization'
for each file.


Repository:
  rC Clang

https://reviews.llvm.org/D68260

Files:
  docs/ClangCommandLineReference.rst
  tools/driver/cc1_main.cpp


Index: tools/driver/cc1_main.cpp
===================================================================
--- tools/driver/cc1_main.cpp
+++ tools/driver/cc1_main.cpp
@@ -271,9 +271,6 @@
     llvm::timeTraceProfilerCleanup();
 
     llvm::errs() << "Time trace json-file dumped to " << Path.str() << "\n";
-    llvm::errs()
-        << "Use chrome://tracing or Speedscope App "
-           "(https://www.speedscope.app) for flamegraph visualization\n";
   }
 
   // Our error handler depends on the Diagnostics object, which we're
Index: docs/ClangCommandLineReference.rst
===================================================================
--- docs/ClangCommandLineReference.rst
+++ docs/ClangCommandLineReference.rst
@@ -1942,7 +1942,8 @@
 
 .. option:: -ftime-trace
 
-Turn on time profiler
+Turn on time profiler. Results can be analyzed with chrome://tracing or
+`Speedscope App <https://www.speedscope.app>`_ for flamegraph visualization
 
 .. option:: -ftime-trace-granularity=<arg>
 


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