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Re: DImode operations

daniel tian wrote:

> ../../../rice-gcc-4.3.0/libgcc/../gcc/libgcc2.c: In function '__muldi3':
> ../../../rice-gcc-4.3.0/libgcc/../gcc/libgcc2.c:557: internal compiler
> error: in emit_move_insn, at expr.c:3379

> make[2]: *** [_muldi3.o] Error 1

> gcc_assert (mode != BLKmode
> 	      && (GET_MODE (y) == mode || GET_MODE (y) == VOIDmode));
> 
> in function emit_move_insn cause the error. Because the machine mode
> in rtx x, y are different. X is SImode, while y is DImode.

  Well, you need to establish why this insn is being generated.  Is it coming
from your expanders perhaps?  Now that you've figured out debugging cc1, set a
breakpoint on "internal_compiler_error" and take a look at the backtrace to
see what function has called emit_move_insn; the answer probably lies there.

    cheers,
      DaveK
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