[Bug c/36735] New: incomplete tree dump with "-fdump-tree-original-raw"

[Bug c/36735] New: incomplete tree dump with "-fdump-tree-original-raw"

[grabner at icg dot tugraz dot at]

The tree dump created with the option "-fdump-tree-original-raw" is incomplete
for two reasons:
1.) at some places in the code, the "slim" option (TDF_SLIM) has been hardcoded
(this is easily demonstrated by running "gcc -fdump-tree-original-raw test.cpp"
and "gcc -fdump-tree-original-raw-slim test.cpp", which both produce the same
output)
2.) declaration expressions are not handled properly

This might be related to other bugs in the database which are not yet resolved
(e.g., #27193). The attached patch fixes both issues.


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           Summary: incomplete tree dump with "-fdump-tree-original-raw"
           Product: gcc
           Version: 4.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: grabner at icg dot tugraz dot at
 GCC build triplet: (see above)
  GCC host triplet: What's that? If this value is important to you, please
                    document
GCC target triplet: (see above)


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36735

[Bug c/36735] incomplete tree dump with "-fdump-tree-original-raw"

[grabner at icg dot tugraz dot at]

------- Comment #1 from grabner at icg dot tugraz dot at  2008-07-05 00:41 -------
Created an attachment (id=15857)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15857&action=view)
short example


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36735

[Bug c/36735] incomplete tree dump with "-fdump-tree-original-raw"

[grabner at icg dot tugraz dot at]

------- Comment #2 from grabner at icg dot tugraz dot at  2008-07-05 00:42 -------
Created an attachment (id=15858)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15858&action=view)
patch to fix the tree dump problem


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36735

[Bug c/36735] incomplete tree dump with "-fdump-tree-original-raw"

[joseph at codesourcery dot com]

------- Comment #3 from joseph at codesourcery dot com  2008-07-05 09:40 -------
Subject: Re:  incomplete tree dump with "-fdump-tree-original-raw"

On Sat, 5 Jul 2008, grabner at icg dot tugraz dot at wrote:

> Created an attachment (id=15858)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15858&action=view)
>  --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15858&action=view)
> patch to fix the tree dump problem

Patches (against trunk) must go to gcc-patches after testing and with 
ChangeLog entries and the other information required; see 
<http://gcc.gnu.org/contribute.html> for details.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36735

[Bug middle-end/36735] incomplete tree dump with "-fdump-tree-original-raw"

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2008-07-05 19:22 -------
Really these options are only to be used to debug GCC and not really supposed
to be used to outside of that.

> What's that? If this value is important to you, please document

It is documented via autoconf and really on
http://gcc.gnu.org/install/specific.html :).


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |middle-end
  GCC build triplet|(see above)                 |
   GCC host triplet|What's that? If this value  |
                   |is important to you, please |
                   |document                    |
 GCC target triplet|(see above)                 |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36735

[Bug middle-end/36735] incomplete tree dump with "-fdump-tree-original-raw"

[grabner at icg dot tugraz dot at]

------- Comment #5 from grabner at icg dot tugraz dot at  2008-07-05 20:40 -------
Ok, I inserted my best guess for host-target-build (since this particular
problem is not related to code generation, it shouldn't be too important here
anyway). A few proposals how to make it easier for first-time bug reporters to
create useful reports are here:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36739

Regarding the "TDF_SLIM | ...", it still seems to me that these have been
inserted at some point in time for testing purposes and not yet been removed
since then. If a slim tree dump is desired, it can still be obtained by adding
the "-slim" switch. I am working on automatic differentiation of C code written
for gcc, and it seems natural to obtain the code tree directly from gcc. Since
the tree-dump options are documented in the man page, I took this approach, but
had to remove the TDF_SLIM override to get useful results.


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grabner at icg dot tugraz dot at changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|                            |linux
   GCC host triplet|                            |x86_64
 GCC target triplet|                            |suse


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36735