I want to write a pass to walk the gimple tree and add some intrumentation
code. I read the chapter 9 of "GCC Internals" document, and it seems not to
describe the Macros to do so.
Can I get some information about this? Specifically, if someone can show me
which .h file I should look at to find the Macros, that would be great. Or,
Is there any other pass do the similar thing(traverse the gimple tree) that
I can read (--I did not find)?
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//in gcc.4.0.2, tree-optimize.c
323 void
324 init_tree_optimization_passes (void)
325 {
326 struct tree_opt_pass **p;
327
328 #define NEXT_PASS(PASS) (p = next_pass_1 (p, &PASS))
329
330 p = &all_passes;
331 NEXT_PASS (pass_gimple);
332
333 NEXT_PASS (MYPASS_code_instrument); //this is what I want to do
334 //the reason I want to add the pass here is: both C/C++(any other
front end, later) can use this;
335 NEXT_PASS (pass_remove_useless_stmts);
336 NEXT_PASS (pass_mudflap_1);
337 NEXT_PASS (pass_lower_cf);
338 NEXT_PASS (pass_lower_eh);
339 NEXT_PASS (pass_build_cfg);
......
}
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