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Re: Looping through the gimple for CALL_EXPR
On Mon, Jan 11, 2010 at 8:39 PM, Paulo J. Matos <pocmatos@gmail.com> wrote:
> On Mon, 2010-01-11 at 17:51 +0100, Richard Guenther wrote:
>> On Mon, Jan 11, 2010 at 4:46 PM, Paulo J. Matos <pocmatos@gmail.com> wrote:
>> > Hi all,
>> >
>> > I am using gcc 4.3.4 to loop through the gimple tree to find
>> > CALL_EXPR. This is what I have (even though I tried several variants,
>> > none of which worked):
>> > tree body_stmt = DECL_SAVED_TREE (current_function_decl);
>> > ? ?while (body_stmt) //
>> > ? ?{
>> > ? ? ? ?if (TREE_CODE (body_stmt) == CALL_EXPR)
>> > ? ? ? ?{
>> > ? ? ? ? ? ?printf("CALL_EXPR found in %s\n",
>> > IDENTIFIER_POINTER(DECL_NAME(current_function_decl)));
>> > ? ? ? ?}
>> >
>> > ? ? ? ?body_stmt = TREE_CHAIN (body_stmt);
>> > ? ?}
>> >
>> > I have read in the internals doc about EXPR_STMT and EXPR_STMT_EXPR
>> > but using them to access the expression through the statement and then
>> > checking if the expressions is a CALL expression doesn't work either.
>> > In fact, EXPR_STMT doesn't even seem to be defined.
>> >
>> > Any tips?
>>
>> statements are chained in STATEMENT_LIST nodes, you need to
>> iterate through them using iterators - see tree-iterator.h.
>>
>
> Thanks for the tip. I used the code found in
> http://gcc.gnu.org/onlinedocs/gccint/Function-Bodies.html#Function-Bodies
>
> Why doesn't that apply?
Because it talks about trees as used by the C / C++ frontends
and it is way out of date anyway.
Richard.
> Cheers,
>
> Paulo Matos
>
>> Richard.
>>
>> > --
>> > Paulo Jorge Matos - pocmatos at gmail.com
>> > http://www.pmatos.net
>> >
>
>
>