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Date: Thu, 26 Aug 2010 10:16:00 -0000
Message-ID: <AANLkTin3ub52eRHBCQ9p5bEme1fZZj0Ltc7BMcAXF_4m@mail.gmail.com>
Subject: Re: Beginner: Declarations do not show up when iterating through Gimple stmts
From: Richard Guenther <richard.guenther@gmail.com>
To: Jeff Saremi <jeffsaremi@yahoo.com>
Cc: gcc@gcc.gnu.org
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On Thu, Aug 26, 2010 at 3:18 AM, Jeff Saremi <jeffsaremi@yahoo.com> wrote:
> I wanted to go through declarations in a function and print them out so a=
s to get more familiar with them before being able to manipulate them.
> I wrote this function as a plugin; it successfully writes out all stateme=
nts but mysteriouslty the declarations are missing. What am I missing? Is t=
here a different way to iterate through declarations?

There are no declaration statements in gimple.

Richard.

> thanks
> jeff
>
> static tree my_walk_stmt(gimple_stmt_iterator *gsi, bool *oprnds_handled,=
 struct walk_stmt_info *stmt_info)
> {
> =A0 =A0 =A0 =A0int code;
> =A0 =A0 =A0 =A0gimple stmt =3D gsi_stmt(*gsi);
> =A0 =A0 =A0 =A0code =3D gimple_code(stmt);
> =A0 =A0 =A0 =A0switch(code)
> =A0 =A0 =A0 =A0{
> =A0 =A0 =A0 =A0default:
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0printf("Gimple code =3D %s\n", gimple_code=
_name[code]);
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
> =A0 =A0 =A0 =A0}
> =A0 =A0 =A0 =A0*oprnds_handled =3D true;
> =A0 =A0 =A0 =A0return NULL_TREE;
> }
> static unsigned int execute_var_alias(void)
> {
> =A0 =A0gimple_stmt_iterator gsi;
> =A0 =A0gimple_seq seq;
> =A0 =A0seq =3D gimple_body(current_function_decl);
> =A0 =A0for (gsi =3D gsi_start(seq); !gsi_end_p(gsi); gsi_next(&gsi))
> =A0 =A0{
> =A0 =A0 =A0 =A0gimple stmt =3D gsi_stmt(gsi);
> =A0 =A0 =A0 =A0walk_gimple_stmt(&gsi, my_walk_stmt, NULL, NULL);
> =A0 =A0}
> }
>
>