Re: ICE in `find_reloads', at reload.c:4106

[Jeffrey A Law <law at cygnus dot com>]

  In message <200006142051.QAA26704@hiauly1.hia.nrc.ca>you write:
  > >From gdb, I find the following values at the abort:
  > 
  > (gdb) print noperands
  > $30 = 1
  > (gdb) print insn_code_number
  > $32 = 13
  > (gdb) print operand_type[0]
  > $33 = RELOAD_FOR_OUTPUT
  > (gdb) print rld[0]
  > $34 = {in = 0xbaa0a0, out = 0x0, class = ALL_REGS, inmode = SImode, 
  >   outmode = VOIDmode, mode = SImode, nregs = 1, inc = 4, in_reg = 0xbaa0a0,
  >  
  >   out_reg = 0x0, regno = -1, reg_rtx = 0x0, opnum = 0, 
  >   secondary_in_reload = -1, secondary_out_reload = -1, 
  >   secondary_in_icode = CODE_FOR_nothing, 
  >   secondary_out_icode = CODE_FOR_nothing, when_needed = RELOAD_FOR_INPUT, 
  >   optional = 0, nocombine = 0, secondary_p = 0, nongroup = 0}
  > (gdb) print *rld[0].in
  > $36 = {code = PRE_DEC, mode = SImode, jump = 0, call = 0, unchanging = 0, 
  >   volatil = 0, in_struct = 0, used = 1, integrated = 0, frame_related = 0, 
  >   fld = {{rtwint = 1702016, rtint = 1702016, rtuint = 1702016, 
  >       rtstr = 0x19f880 "9", rtx = 0x19f880, rtvec = 0x19f880, 
  >       rttype = 1702016, rt_addr_diff_vec_flags = {min_align = 128, 
  > 	base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
  > 	min_after_base = 1, max_after_base = 1, offset_unsigned = 1,  = 3, 
  > 	scale = 25}, rt_cselib = 0x19f880, rtbit = 0x19f880, 
  >       rttree = 0x19f880, bb = 0x19f880}}}
  > 
  > Why does rld[0] contain data for an input reload when the only
  > input for the instruction is cc0?  Is this residual garbage?
  > 
  > The problem could probably be fixed by deleting the sltu pattern but
  > this isn't the real fix.
Put a conditional breakpoint in emit_reload_insns for insn # 173.

When it hits 
p debug_reload()

That will print reload information in a symbolic format.

jeff