Hi all, I am currently developing a GCC port for my own generic 32 bit processor. I have this following error when I tried to compile a benchmark. (insn 1497 1924 1756 2 (set (mem:BI (plus:SI (reg/f:SI 2 r2) (const_int -137 [0xffffff77])) [72 S1 A8]) (le:BI (reg:SI 12 r12) (const_int 0 [0x0]))) 0 {*cmpsi_normal} (insn_list:REG_DEP_TRUE 86 ( nil)) (nil)) convolve.c:236: internal compiler error: in reload_cse_simplify_operands, at postreload.c:391 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. make: *** [convolve.o] Error 1 My question is that..what is the constaint/instruction I am missing? If you could give me an assembly example tto illustrate an instrction that I hvaent implemented, it would be nice too. Any Help is highly appreciated. Thanking You, Yours Sincerely, Balaji V. Iyer. PS. Please CC me since I am not a subscribed member of this list.