Hi!
I am a beginner in compiler and I extracted Ast from the .tu files.
It can be viewed in pdf format and I tested it on gcc 7.2 and 4.9.3.
This is my source code.
https://github.com/alapha23/Ast-Extracter_gcc
Will it be useful?
Or how can I make my tryout useful to the project?
Thank you
On 07/24/2014 05:57 PM, Francois Berenger wrote:
Would it be possible to make these dumps complete?
Let's say for the C frontend of gcc.
The C front end currently does not produce an AST in the usual sense.
It would certainly be possible to dump out the trees it produces, but
most co
n external program it would be possible to reconstruct the original
>>> AST
>>> that gcc was working on (and dumped out).
>>
>> It isn't. These dumps are meant to be debugging aids. It is not
>> possible to reconstruct the original program out of them.
>
On Thu, Jul 24, 2014 at 4:29 PM, Diego Novillo wrote:
> On Thu, Jul 24, 2014 at 7:17 AM, Francois Berenger
> wrote:
>
>> Complete in the sense that, by parsing back this text file
>> with an external program it would be possible to reconstruct the original AST
>> t
On Thu, Jul 24, 2014 at 7:17 AM, Francois Berenger
wrote:
> Complete in the sense that, by parsing back this text file
> with an external program it would be possible to reconstruct the original AST
> that gcc was working on (and dumped out).
It isn't. These dumps are meant to be
Hello,
If I use the -fdump-tree-original-raw option
of gcc, I understand it will dump out the AST
in a text file.
Is that text file complete?
Complete in the sense that, by parsing back this text file
with an external program it would be possible to reconstruct the original AST
that gcc was
On 03/07/2014 19:24, Roman Gareev wrote:
However, this form doesn't have loop guards which are generated by
>>graphite_create_new_loop_guard in gcc/graphite-isl-ast-to-gimple.c and
>>by graphite_create_new_loop_guard in graphite-clast-to-gimple.c.
>
>
>Maybe the gu
>> However, this form doesn't have loop guards which are generated by
>> graphite_create_new_loop_guard in gcc/graphite-isl-ast-to-gimple.c and
>> by graphite_create_new_loop_guard in graphite-clast-to-gimple.c.
>
>
> Maybe the guards are directly constant folde
] = i;
return 0;
}
gcc/graphite-isl-ast-to-gimple.c
loop_0 (header = 0, latch = 1, niter = )
{
bb_2 (preds = {bb_0 }, succs = {bb_3 })
{
:
}
bb_5 (preds = {bb_3 }, succs = {bb_1 })
{
:
# .MEM_10 = PHI <.MEM_3(D)(3)>
# VUSE <.MEM_10>
return
return 0;
}
gcc/graphite-isl-ast-to-gimple.c
loop_0 (header = 0, latch = 1, niter = )
{
bb_2 (preds = {bb_0 }, succs = {bb_3 })
{
:
}
bb_5 (preds = {bb_3 }, succs = {bb_1 })
{
:
# .MEM_10 = PHI <.MEM_3(D)(3)>
# VUSE <.MEM_10>
return 0;
}
loop_2
generated
from isl ast expressions. After this the result of the evaluation is
being compared with assumed result. I haven't found functions, which
evaluate isl ast expressions. That is why it compares results of
evaluations with assumed result. Maybe there is a better way to
compare the sema
message.
Sorry for being unclear.)
> I did not fully understand them. Are you comparing the resulting GIMPLE
> trees or are you statically evaluating the isl and gimple trees to check
> if the computed value is the same?
I'm statically evaluating gimple tree expressions, which are generat
> I assume so. However, we always want signed types, so the second
> argument should be zero, no?
Yes, you are right.
> How did you verify that the semantics of the GCC and isl expressions are
> identical?
I haven't tested it on examples yet. I've only matched their semantics
from the isl manual
On 23/06/2014 08:34, Roman Gareev wrote:
Hi Tobias,
I'm currently working on generation of GCC expression trees from isl
ast expressions . Could you please answer a few questions about it?
1. How is it better to generate tree from isl_ast_expr_int? In the
temporary variant I
Hi Tobias,
I'm currently working on generation of GCC expression trees from isl
ast expressions . Could you please answer a few questions about it?
1. How is it better to generate tree from isl_ast_expr_int? In the
temporary variant I call isl_ast_expr_get_int to get isl_int from
isl_ast
thanks for sharing, will check this out.
mike
On Fri, Sep 14, 2012 at 9:05 PM, James Courtier-Dutton
wrote:
> Hi,
>
> I know most compilers go from AST to CFG.
> I am writing a decompiler, so I was wondering if anyone knew of any
> documents describing how best to get from CF
Hi,
I know most compilers go from AST to CFG.
I am writing a decompiler, so I was wondering if anyone knew of any
documents describing how best to get from CFG to AST.
The decompiler project is open source.
https://github.com/jcdutton/libbeauty
The decompiler already contains a disassembler and
Up.
2011/10/12 niXman :
> Hello!
>
> I have figured out the creation of functions and structures, thanks
> Andi's and Balaji's. Couldn't understand how to create tree for
> template functions, classes, methods.
> Can you help me figure that out, please?
>
> Thanks.
>
Hello!
I have figured out the creation of functions and structures, thanks
Andi's and Balaji's. Couldn't understand how to create tree for
template functions, classes, methods.
Can you help me figure that out, please?
Thanks.
NOWN_LOCATION, FIELD_DECL,
>> get_identifier("variable"), integer_type_node)
>> TREE_CHAIN(struct_field) = struct_frame
>>
>> You will create the following internal structure
>>
>> struct {
>> int variable;
>> }
>>
>> I hope this h
Balaji V .Iyer.
-Original Message-
From: niXman [mailto:i.nix...@gmail.com]
Sent: Monday, October 03, 2011 6:51 PM
To: gcc@gcc.gnu.org
Subject: The AST tree modification. Edited.
Hi everybody!
It is necessary to implement a plug-in for GCC designed to collect the
information on types of tr
niXman writes:
> "lang_hooks" - what this? where is declared?
Running grep will show you that it is declared in langhooks.h.
The lang hooks are frontend hooks called from the middle-end. The hooks
are defined in langhooks.h.
Ian
following internal structure
>
> struct {
> int variable;
> }
>
> I hope this helps you get started.
>
> Thanks,
>
> Balaji V .Iyer.
>
> -----Original Message-
> From: niXman [mailto:i.nix...@gmail.com]
> Sent: Monday, October 03, 2011 6:51 PM
>
Monday, October 03, 2011 6:51 PM
To: gcc@gcc.gnu.org
Subject: The AST tree modification. Edited.
Hi everybody!
It is necessary to implement a plug-in for GCC designed to collect the
information on types of translation unit, and generate static const array of
types rtti_ex _ on its base; ///
t align;
const size_t offset;
};
// generated from plugin.
static const rtti_ex_ rtti_ex_array_[] = {
{...},
{...},
{...}
};
/////////
There aren't any problems with information collection from AST. There
is a complexity with AST modification:
1. How to
t align;
const size_t offset;
};
// generated from plugin.
static const rtti_ex_ rtti_ex_array_[] = {
{...},
{...},
{...}
};
/////////
There aren't any problems with information collection from AST. There
is a complexity with AST modification:
1. How to
1-03-23 13:08:11) honza: dnovillo: for LTO it makes a lot sense
when the way you stream function bodies is well defined VM (well, like
LLVM). We can't reach this when we will just keep saving our trees
without any more strict specification
(2011-03-23 13:08:38) honza: for AST in FE you have di
On Wed, Mar 23, 2011 at 12:38, Jan Hubicka wrote:
>> think it would be much easier if you worked with a copy (ugh,
>> streaming trees again).
>
> I also think using same machinery for FE/gimple is a mistake. Trees are
> making
> life hard since they are interface in between FE<->gimplifier,
> On Wed, 23 Mar 2011, Diego Novillo wrote:
>
> > Over at the PPH branch we are starting to re-use the LTO streaming
> > routines to save front end trees. Clearly, there are things that need
> > to be extended and/or replaced since LTO streaming assumes that we are
> > in GIMPLE. However, there
On Wed, Mar 23, 2011 at 10:53, Richard Guenther wrote:
> Yes, Micha has a load of patches cleaning up streaming and removing
> unecessary abstraction. So, why'd you need to share any of it?
Removing unnecessary abstraction is fine. But there is a bunch of
code that will be common, in particula
On Wed, 23 Mar 2011, Diego Novillo wrote:
> Over at the PPH branch we are starting to re-use the LTO streaming
> routines to save front end trees. Clearly, there are things that need
> to be extended and/or replaced since LTO streaming assumes that we are
> in GIMPLE. However, there is a large i
Over at the PPH branch we are starting to re-use the LTO streaming
routines to save front end trees. Clearly, there are things that need
to be extended and/or replaced since LTO streaming assumes that we are
in GIMPLE. However, there is a large intersection that I think can be
commoned out.
- AS
I have two files:
foo.h:
extern int x;
extern int y;
foo.c:
#include "foo.h"
int x;
int y;
I have written a gcc plugin that traverses the gcc AST ... However in
the situation where I compile the above file I cannot seem to access the
int x and int y decls. If I place a dummy funct
> "Kien" == Kien Nguyen Trung writes:
Kien> obj_type_ref
Kien> indirect_ref (test.cpp:21-17)
Kien> The problem is method read() of class B is get from a virtual method
Kien> of based class A. And i cannot get the real name of this method.
Kien> Do you have any idea
I am work on a project related with GCC AST.
In my project, i write a plugin for GCC. This plugin read a AST from a
source code, a covert this source code to another language.
Currently i have a problem with GCC AST. In particular, i cannot
retrieve all information about CALL_EXPR.
I read GCC
On 05/11/2010 11:34 AM, wolfgang8...@gmx.de wrote:
Hello All,
I want to know if it is possible to modify AST of the C/C++-Language.
You can modify a middle end representation of source program. I am not
sure if it always should be called an AST.
What I would like to do is to add some
Hello All,
I want to know if it is possible to modify AST of the C/C++-Language.
What I would like to do is to add some arguments to some function calls or add
statements somewhere in the tree.
Now I am looking for the root node to modify it. Which is the best pass for
that? Is there anywhere
On 12/02/10 19:51, Joern Rennecke wrote:
Quoting Ilya Caramishev :
I've tried registering my plugin for PLUGIN_FINISH_UNIT event.
That event occurs way too late.
Alternatively I've tried Kenji Koyanagi's patch
(http://gcc.gnu.org/ml/gcc/2009-03/msg00136.html) and it worked just
fine, but I d
Quoting Ilya Caramishev :
I've tried registering my plugin for PLUGIN_FINISH_UNIT event.
That event occurs way too late.
Alternatively I've tried Kenji Koyanagi's patch
(http://gcc.gnu.org/ml/gcc/2009-03/msg00136.html) and it worked just
fine, but I don't know whether this patch is going to b
plugin
gets called, but I couldn't find a way to access AST - nothing is passed
to my plugin as parameter. Maybe there is some GCC's global variable
that contains AST I can use?
Alternatively I've tried Kenji Koyanagi's patch
(http://gcc.gnu.org/ml/gcc/2009-03/msg00136.htm
only supported in C++
This patch (for the plugins branch) allows to see AST in C.
Thanks,
Kenji Koyanagi
Index: c-decl.c
===
--- c-decl.c(revision 144675)
+++ c-decl.c(working copy)
@@ -63,6 +63,7 @@
#include "l
Perhaps you could also try
-fdump-tree-gimple
or
-fdump-tree-gimple-raw
In both cases you dump out the GIMPLE form, AST based.
Best,
T.
> Hi I want to extract the complete AST-tree from GCC (using 4.1.2).
> I´ve tried to use -fdump-translation-unit but it seems like its dosent
>
On 9/24/07, Johan Bohlin <[EMAIL PROTECTED]> wrote:
> My question is... Anyone knows a way
> to get all information ? Maybe changing a flag in the source code or
> something.
Debugging dumps are always incomplete. Mostly by design, but in
general because we just dump what seems useful for debugg
Hi I want to extract the complete AST-tree from GCC (using 4.1.2).
I´ve tried to use -fdump-translation-unit but it seems like its dosent
include information in ex. for and if statements. If i use
-fdump-tree-orignal-raw i get each function but not the external variables
if they are not used in
@27 integer_cst type: @13 high: -1 low : -2147483648
Darth
--
View this message in context:
http://www.nabble.com/AST-dump-t1252187.html#a3318259
Sent from the gcc - Dev forum at Nabble.com.
@27 integer_cst type: @13 high: -1 low : -2147483648
Darth
--
View this message in context:
http://www.nabble.com/Help-in-AST-dump-t1252187.html#a3318259
Sent from the gcc - Dev forum at Nabble.com.
Can someone give a good link to any information about the Abstract Syntax Tree.
Any help will be appreciated.
TIA,
Darthrader
--
View this message in context: http://www.nabble.com/AST-t1047504.html#a2722321
Sent from the gcc - Dev forum at Nabble.com.
Rajesh Babu wrote:
I am working with gcc-3.3.3, and I want to insert my module after
construction of AST and before RTL generation.
gcc-3.3 is not interesting for work like this. This stuff has already
been obsoleted in current gcc sources. But if you insist on using out
dated sources, look
I am working with gcc-3.3.3, and I want to insert my module after
construction of AST and before RTL generation.
Rajesh
On Sat, 12 Mar 2005, Diego Novillo wrote:
On 03/12/05 08:14, Rajesh Babu wrote:
I want the root node of the AST built by gcc, so that I can do the
manipulations I want to
On 03/12/05 08:14, Rajesh Babu wrote:
I want the root node of the AST built by gcc, so that I can do the
manipulations I want to do on the intermediate nodes of AST. Can
someone tell me where I can find the root node of AST and the place
where the construction of AST finishes in GCC source
Hi,
I want the root node of the AST built by gcc, so that I can do the
manipulations I want to do on the intermediate nodes of AST. Can someone
tell me where I can find the root node of AST and the place where the
construction of AST finishes in GCC source.
Thanks in Advance
Rajesh Babu
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