vvereschaka added inline comments.

================
Comment at: clang/docs/UsersManual.rst:799
+  setting the ``CC_PRINT_PROC_STAT`` and ``CC_PRINT_PROC_STAT_FILE`` 
environment
+  variables. Use ``CC_PRINT_PROC_STAT_FILE`` to provide a file name to store
+  the statistics.
----------------
aganea wrote:
> Do you think it would be possible to rephrase a bit to avoid the repetition 
> of `CC_PRINT_PROC_STAT_FILE`? Perhaps also explicitate that 
> `CC_PRINT_PROC_STAT` is for "enabling the feature and logging to stdout"; 
> while `CC_PRINT_PROC_STAT_FILE` only "redirects the log to a file".
Yes, sure. Here is updated and extended version of the doc part.


================
Comment at: clang/lib/Driver/Driver.cpp:4039
+
+      if (CCPrintStatReportFilename == nullptr) {
         using namespace llvm;
----------------
aganea wrote:
> Suggestion: I find `if (!CCPrintStatReportFilename)` more intutive, more 
> compact and easier to read, but that's my personal preference. There are 
> arguments both ways probably, up to you.
I have updated it in according of you suggestion. It is ok for me too.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D97094/new/

https://reviews.llvm.org/D97094

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