optimization/6025: linux m68k-elf-gcc cross compiler segfault

Anders Blomdell anders.blomdell@control.lth.se
Fri Mar 22 07:51:00 GMT 2002


OK, I have looked a little furter into this. The problem seems to be 
in bb-reorder.c:415:

	next = (taken ? e_taken : e_fall)->dest;

the segfault occurs when we get here with:

   taken = 0, e_taken = 842a0b0, e_fall = 0

(since (0 ? 842a0b0 : 0)->dest == (0)->dest, which is clearly illegal).

Now, how do I do to find out why there is a block without a valid 
fall-through path (mapping *.ce2 dump to basic block layout is beyond 
my capacity).

  Anders Blomdell
  Department of Automatic Control        Email: anders.blomdell@control.lth.se
  Lund Institute of Technology           Phone: +46 46 222 4625
  Box 118, S-221 00 Lund, Sweden         Fax:   +46 46 138118

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