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Re: [PATCH] Add missing -fdump-* options


On Tue, May 13, 2014 at 1:39 AM, Richard Biener
<richard.guenther@gmail.com> wrote:
> On Fri, May 9, 2014 at 5:54 PM, Teresa Johnson <tejohnson@google.com> wrote:
>> I discovered that the support for the documented -fdump-* options
>> "optimized", "missed", "note" and "optall" was missing. Added that and
>> fixed a minor typo in the documentation.
>>
>> Bootstrapped and tested on x86-64-unknown-linux-gnu. Ok for trunk?
>
> I'm not sure they were intented for user-consumption.  ISTR they
> are just an implementation detail exposed by -fopt-info-X (which is
> where they are documented).
>
> The typo fix is ok, also adding a comment before the dump flags
> definition to the above fact.
>
> David, do I remember correctly?

I remember we talked about content filtering dump flags. Things like

-fdump-xxx-ir  <-- dump IR only
-fdump-xxx-transformation <-- optimization note
-fdump-xxx-debug <-- other debug traces

Other than that, now I think 'details' and 'all' seem redundant.
'verbose' flag/modifier can achieve the same effect depending on the
context.

-fdump-xxx-ir-verbose <-- dump IR, and turn on IR modifiers such as
vops, lineno, etc
-fdump-xxx-transforamtion-verbose <-- dump transformations + missed
optimizations + notes
-fdump-xxx-debug-verbose <-- turn on detailed trace.

thanks,

David


>
> Thanks,
> Richard.
>
>> Thanks,
>> Teresa
>>
>> 2014-05-09  Teresa Johnson  <tejohnson@google.com>
>>
>>         * doc/invoke.texi: Fix typo.
>>         * dumpfile.c: Add support for documented -fdump-* options
>>         optimized/missed/note/optall.
>>
>> Index: doc/invoke.texi
>> ===================================================================
>> --- doc/invoke.texi     (revision 210157)
>> +++ doc/invoke.texi     (working copy)
>> @@ -6278,7 +6278,7 @@ passes).
>>  @item missed
>>  Enable showing missed optimization information (only available in certain
>>  passes).
>> -@item notes
>> +@item note
>>  Enable other detailed optimization information (only available in
>>  certain passes).
>>  @item =@var{filename}
>> Index: dumpfile.c
>> ===================================================================
>> --- dumpfile.c  (revision 210157)
>> +++ dumpfile.c  (working copy)
>> @@ -107,6 +107,10 @@ static const struct dump_option_value_info dump_op
>>    {"nouid", TDF_NOUID},
>>    {"enumerate_locals", TDF_ENUMERATE_LOCALS},
>>    {"scev", TDF_SCEV},
>> +  {"optimized", MSG_OPTIMIZED_LOCATIONS},
>> +  {"missed", MSG_MISSED_OPTIMIZATION},
>> +  {"note", MSG_NOTE},
>> +  {"optall", MSG_ALL},
>>    {"all", ~(TDF_RAW | TDF_SLIM | TDF_LINENO | TDF_TREE | TDF_RTL | TDF_IPA
>>             | TDF_STMTADDR | TDF_GRAPH | TDF_DIAGNOSTIC | TDF_VERBOSE
>>             | TDF_RHS_ONLY | TDF_NOUID | TDF_ENUMERATE_LOCALS | TDF_SCEV)},
>>
>>
>> --
>> Teresa Johnson | Software Engineer | tejohnson@google.com | 408-460-2413


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