On Tue, Oct 6, 2009 at 5:10 AM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > "Kim, Eunchan" <helpbygrace@xxxxxxxxx> writes: > >> (insn 81 80 0 ../../../../sdk/gcc-4.3.3/libgcc/../gcc/unwind-dw2.c:1503 >> (parallel [ >> (set (mem:BLK (reg/v/f:SI 43 [ c ]) [0 S4 A8]) >> (unspec:BLK [ >> (reg:SI 75) >> (mem:QI (reg/v/f:SI 43 [ c ]) [0 S1 A8]) >> (mem:BLK (reg/v/f:SI 43 [ c ]) [0 S4 A8]) >> ] 21)) >> (clobber (scratch:SI)) >> ]) -1 (nil)) > > Where did this insn come from? (clobber (scratch:SI)) is something > one might see in a reload insn pattern, but it shouldn't be in a > normal insn patter. > > If you are trying to write an insn which does a memory copy and needs > a scratch register, then you need to use a define_expand which calls > gen_reg_rtx. > > Ian > That insn is from gcc's error message when i compile libgcc(unwind-dw2.c) with this gcc. I based on mips cross compiler. But i'd rather make whole new. Because i do not fully understand mips target description. Thankyou. Eunchan
