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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.target/] [i386/] [loop-2.c] - Blame information for rev 816

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Line No. Rev Author Line
1 149 jeremybenn
/* PR optimization/9888 */
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/* Originator: Jim Bray <jb@as220.org> */
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/* { dg-do run { target i?86-*-* x86_64-*-* } } */
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/* { dg-require-effective-target ilp32 } */
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/* { dg-options "-mtune=k6 -Os" } */
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enum reload_type
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{
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  RELOAD_FOR_INPUT, RELOAD_FOR_OUTPUT, RELOAD_FOR_INSN,
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  RELOAD_FOR_INPUT_ADDRESS, RELOAD_FOR_INPADDR_ADDRESS,
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  RELOAD_FOR_OUTPUT_ADDRESS, RELOAD_FOR_OUTADDR_ADDRESS,
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  RELOAD_FOR_OPERAND_ADDRESS, RELOAD_FOR_OPADDR_ADDR,
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  RELOAD_OTHER, RELOAD_FOR_OTHER_ADDRESS
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};
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#define FOO_SIZE 3
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/* My results, varying with FOO_SIZE:
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   30: asm error "value of ..fff77 too large:
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   3 to 29: ....ff7d...
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   1 to 2: no error.  */
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struct reload
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{
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   int foo[FOO_SIZE];
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   int opnum;
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   enum reload_type when_needed;
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   unsigned int optional:1;
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   unsigned int secondary_p:1;
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};
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#define N_RELOADS  2
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struct reload rld[N_RELOADS];
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int n_reloads = N_RELOADS;
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int main(void)
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{
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  int i;
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  enum reload_type operand_type[1];
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  enum reload_type address_type[1];
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  int operand_reloadnum[1];
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  int goal_alternative_matches[1];
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  for (i = 0; i < n_reloads; i++)
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    {
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      if (rld[i].secondary_p
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          && rld[i].when_needed == operand_type[rld[i].opnum])
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        rld[i].when_needed = address_type[rld[i].opnum];
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      if ((rld[i].when_needed == RELOAD_FOR_INPUT_ADDRESS
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           || rld[i].when_needed == RELOAD_FOR_OUTPUT_ADDRESS
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           || rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS
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           || rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
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          && (operand_reloadnum[rld[i].opnum] < 0
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              || rld[operand_reloadnum[rld[i].opnum]].optional))
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        {
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          if (rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS
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              || rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
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            rld[i].when_needed = RELOAD_FOR_OPADDR_ADDR;
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          else
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            rld[i].when_needed = RELOAD_FOR_OPERAND_ADDRESS;
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        }
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      if ((rld[i].when_needed == RELOAD_FOR_INPUT_ADDRESS
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           || rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS)
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          && operand_reloadnum[rld[i].opnum] >= 0
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          && (rld[operand_reloadnum[rld[i].opnum]].when_needed
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              == RELOAD_OTHER))
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        rld[i].when_needed = RELOAD_FOR_OTHER_ADDRESS;
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      if (goal_alternative_matches[rld[i].opnum] >= 0)
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        rld[i].opnum = goal_alternative_matches[rld[i].opnum];
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    }
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  return 0;
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}

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