SSA GIMPLE

[Rob Quigley]

Hello,

I am looking for some more information of the SSA Gimple syntax and
was wondering if there was  BNF available?

I am interested in the IR of gcc and am just looking for some further
documentation/explanation of some of the syntax I am observing such
as:

OBJ_TYPE_REF(D.103787_32;D.103784_29->4) (D.103784_29, value__23); **
save_filt.1022_12 = <<<filter object>>>;
save_eptr.1021_13 = <<<exception object>>>;
resx;
iftmp.256_17 = (int (*__vtbl_ptr_type) (void) *) D.52956_16;
D.53402_2 = &this_1->m_cur_val;
__base_ctor  (&D.53467);
__comp_ctor  (&nm, if_typename__8, &D.53467);
__cxa_atexit (__tcf_0, 0B, &__dso_handle);
__static_initialization_and_destruction_0 (1, 65535);

Does anyone know where I might find such information? Any help and/or
pointers in the direction of information would be most welcome. I
tried the gcc wiki but I couldn't find much on SSA Gimple/low-Gimple

Thanks and regards all!


Rob