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

Line No.	Rev	Author	Line
1	149	jeremybenn	`/* PR optimization/9888 */`
2			`/* Originator: Jim Bray <jb@as220.org> */`
3			`/* { dg-do run { target i?86-- x86_64-- } } */`
4			`/* { dg-require-effective-target ilp32 } */`
5			`/* { dg-options "-mtune=k6 -Os" } */`
6
7			`enum reload_type`
8			`{`
9			`RELOAD_FOR_INPUT, RELOAD_FOR_OUTPUT, RELOAD_FOR_INSN,`
10			`RELOAD_FOR_INPUT_ADDRESS, RELOAD_FOR_INPADDR_ADDRESS,`
11			`RELOAD_FOR_OUTPUT_ADDRESS, RELOAD_FOR_OUTADDR_ADDRESS,`
12			`RELOAD_FOR_OPERAND_ADDRESS, RELOAD_FOR_OPADDR_ADDR,`
13			`RELOAD_OTHER, RELOAD_FOR_OTHER_ADDRESS`
14			`};`
15
16			`#define FOO_SIZE 3`
17
18			`/* My results, varying with FOO_SIZE:`
19			`30: asm error "value of ..fff77 too large:`
20			`3 to 29: ....ff7d...`
21			`1 to 2: no error. */`
22
23			`struct reload`
24			`{`
25			`int foo[FOO_SIZE];`
26			`int opnum;`
27			`enum reload_type when_needed;`
28			`unsigned int optional:1;`
29			`unsigned int secondary_p:1;`
30			`};`
31
32			`#define N_RELOADS 2`
33
34			`struct reload rld[N_RELOADS];`
35			`int n_reloads = N_RELOADS;`
36
37			`int main(void)`
38			`{`
39			`int i;`
40
41			`enum reload_type operand_type[1];`
42
43			`enum reload_type address_type[1];`
44
45			`int operand_reloadnum[1];`
46			`int goal_alternative_matches[1];`
47
48			`for (i = 0; i < n_reloads; i++)`
49			`{`
50			`if (rld[i].secondary_p`
51			`&& rld[i].when_needed == operand_type[rld[i].opnum])`
52			`rld[i].when_needed = address_type[rld[i].opnum];`
53
54			`if ((rld[i].when_needed == RELOAD_FOR_INPUT_ADDRESS`
55			`\|\| rld[i].when_needed == RELOAD_FOR_OUTPUT_ADDRESS`
56			`\|\| rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS`
57			`\|\| rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)`
58			`&& (operand_reloadnum[rld[i].opnum] < 0`
59			`\|\| rld[operand_reloadnum[rld[i].opnum]].optional))`
60			`{`
61
62			`if (rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS`
63			`\|\| rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)`
64			`rld[i].when_needed = RELOAD_FOR_OPADDR_ADDR;`
65			`else`
66			`rld[i].when_needed = RELOAD_FOR_OPERAND_ADDRESS;`
67			`}`
68
69			`if ((rld[i].when_needed == RELOAD_FOR_INPUT_ADDRESS`
70			`\|\| rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS)`
71			`&& operand_reloadnum[rld[i].opnum] >= 0`
72			`&& (rld[operand_reloadnum[rld[i].opnum]].when_needed`
73			`== RELOAD_OTHER))`
74			`rld[i].when_needed = RELOAD_FOR_OTHER_ADDRESS;`
75
76			`if (goal_alternative_matches[rld[i].opnum] >= 0)`
77			`rld[i].opnum = goal_alternative_matches[rld[i].opnum];`
78			`}`
79
80			`return 0;`
81			`}`

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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.target/] [i386/] [loop-2.c] - Blame information for rev 825