How did u subscribe ? -----Original Message----- From: gcc-help-owner@xxxxxxxxxxx [mailto:gcc-help-owner@xxxxxxxxxxx] On Behalf Of Anirudha Sarangi Sent: Thursday, March 31, 2005 1:35 PM To: gcc-help@xxxxxxxxxxx Subject: Remove my name from the mailing list Hello All, Can anyone help me in removing my name from the gcc-help mailing list? regards Anirudha Sarangi ----- Original Message ----- From: "Brendon Costa" <bcosta@xxxxxxxxxxxx> To: <gcc-help@xxxxxxxxxxx> Sent: Thursday, March 31, 2005 1:29 PM Subject: Getting access to g++ tree from front end. > Hi, > > I am trying to make a small modification to a local copy of gcc > (In > particular the g++ front end) that will help me in documenting > exceptions that can be thrown by functions. I have had a look at most of > the gcc documentation i could find and it has been helpful, but i am > currently stuck in where to look next. I know roughly how i want to > implement this code, but i need to find an appropriate place to "hook > into the g++ fronten code". What i need at the point of where i hook in, > is just the intermediate tree generated by the C++ front end. This is > the one spoken of in chapter 9 of the document "GNU Compiler Collection > (GCC) Internals" where it talks about the intermediate representation > used by the C and C++ front ends. I assume that this tree is generated, > and then converted to a GIMPLE tree and then later to RTL, but what > happens with it after i have used it is really none of my concern. > > Questions: > > 1) Does gcc generate this full tree before it compiles the code (I.e. > generates RTL and then assembly etc), and if not is there any point in > time where this intermediate tree is complete so that i can get access > to all information parsed in the given g++ session. > > 2) If there is a full tree generated, where is the best place to get > that tree for my purposes (I will not be modifying the tree just > iterating through it getting the appropriate information that i need and > saving it externally)? > > 3) If the tree is never generated in its entirety at any point, i > noticed that in the gcc/toplev.c file there is a function called: > rest_of_compilation which is called for each function being compiled > from what i can tell. It there something similar inside the front end > where i can hook into that will give the full tree/branch for each > function in the parsed file(s)? > > > Thanks for any help, > Brendon. > > >
