GIMPLE: obtaining informations about variables

Hi all, I'm adding a new functionality to gcc for a university project. I know that, for each function, gcc creates a GIMPLE code that can be viewed as a control flow graph. I'm able to visit nodes (basic blocks), edges and statements of those graphs using some gcc macros. But how can I obtain the

GIMPLE temporary variables

a = D.1295 + 19; how can I recognize temporary variables, such as D.1295? Thanks for support! bye!! Andrea Callia D'Iddio

TREE_CODE: arrays and variables

Hi all, I added a new gcc pass, in wich I've to elaborate GIMPLE code... for every GIMPLE statement I use TREE_CODE macro to know if is an assignment, an IF-THEN-ELSE, etc. and for every GIMPLE expression I use also TREE_CODE macro to know if it's an integer constant, an addition, etc. I know tha

Re: how to obtain SSA form

I looked for "into" and "ssa" in passes.c, but I've not found anything. Also I tried with options -fdump-tree-ssa and -O1 but, when my pass is executed, code is only in GIMPLE form (in this last case a file with code in SSA form is written, but I don't need a file, I'd like that basic blocks conta

how to obtain SSA form

hi all, I'm trying to make some optimizations in gcc, and I need to manipulate control flow graph when code is translated in SSA form. I wrote optimization code, but I noticed that when my code is executed the code isn't in SSA form, it's only in GIMPLE form. How can I obtain the SSA form to appl

Re: Manipulating the tree Structure

Hi all, first of all i want to thank you for the aid that i have receveid from this mailing list. I have another little question: if i have a statemente that is an expression, for example x+5 , how can i know if the operation is plus (+), or minus (-), or equal(=) or less (<) etc.. Can you give me

Re: Manipulating the tree Structure

Great! thank you! I tested with your code and it works... but I'm still a bit confused. Could you help me with this simple example? Suppose that I obtained a tree structure with the following command: tree stmt = bsi_stmt (si); and suppose I want to execute the following task: For each tree sta

Manipulating the tree Structure

ow if statement is an assignement or another instruction type. And if the statement is an assignement i'd like to know wich is the name of the variable. I have serchead too much but i have not found any information. Thanks to all, Andrea Callia D'Iddio

writing a new pass: association with an option string

Dear all, I wrote a new pass for gcc. Actually the pass is always executed, but I'd like to execute it only if I specify an option from shell (ex. gcc --mypass pippo.c). How can I do? Thanks to all Andrea

Compiling gcc source: unknown command gcctabopt

Hi all, I'm trying to compile gcc 4.1 source (from debian). I need to be able to compile it because I have to modify and add some code and recompile. When I try to compile gcc I get the following error message: ../.././fastjar/fastjar.texi:119: Unknown command `gcctabopt'. ../.././fastjar/fastja