2010/1/13 fanqifei <fanqi...@gmail.com>: > Hi, > I am working on a micro controller and trying to port gcc(4.3.2) for it. > Not the compiling process runs into the following error: > a.c: In function 'task': > a.c:150: error: unrecognizable insn: > (insn 479 478 320 19 a:381 (set (reg:SI 12 a12) > (plus:SI (mult:SI (reg:SI 9 a9 [204]) > (const_int 4 [0x4])) > (reg:SI 12 a12))) -1 (nil)) > a.c:150: internal compiler error: in extract_insn, at recog.c:1990 > Please submit a full bug report, ... > > This insn is generated in greg pass from another insn: > (insn 320 308 309 19 a.c:381 (set (reg:SI 207 [ <variable>.wrData ]) > (mem/s:SI (plus:SI (mult:SI (reg:SI 204) > (const_int 4 [0x4])) > (reg/f:SI 234)) [5 <variable>.wrData+0 S4 A32])) 3 {movsi} > (expr_list:REG_DEAD (reg:SI 204) > (nil))) > I surfed the web a bit and found similar gcc bug report 37436 > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436. > But basically they are not same. > > Can someone show me the possible places where insn#479 is generated in > reload.c or reload1.c? > Thanks! > > Qifei Fan > Is there anyone can help? Thanks very much!
Qifei Fan