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URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc2/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [ssa-dom-thread-2.c] - Diff between revs 298 and 384

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Rev 298 Rev 384
/* { dg-do compile } */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-vrp1-stats -fdump-tree-dom1-stats" } */
/* { dg-options "-O2 -fdump-tree-vrp1-stats -fdump-tree-dom1-stats" } */
 
 
void foo();
void foo();
void bla();
void bla();
void bar();
void bar();
 
 
/* In the following two cases, we should be able to thread edge through
/* In the following two cases, we should be able to thread edge through
   the loop header.  */
   the loop header.  */
 
 
void thread_entry_through_header (void)
void thread_entry_through_header (void)
{
{
  int i;
  int i;
 
 
  for (i = 0; i < 170; i++)
  for (i = 0; i < 170; i++)
    bla ();
    bla ();
}
}
 
 
void thread_latch_through_header (void)
void thread_latch_through_header (void)
{
{
  int i = 0;
  int i = 0;
  int first = 1;
  int first = 1;
 
 
  do
  do
    {
    {
      if (first)
      if (first)
        foo ();
        foo ();
 
 
      first = 0;
      first = 0;
      bla ();
      bla ();
    } while (i++ < 100);
    } while (i++ < 100);
}
}
 
 
/* This is a TODO -- it is correct to thread both entry and latch edge through
/* This is a TODO -- it is correct to thread both entry and latch edge through
   the header, but we do not handle this case yet.  */
   the header, but we do not handle this case yet.  */
 
 
void dont_thread_1 (void)
void dont_thread_1 (void)
{
{
  int i = 0;
  int i = 0;
  int first = 1;
  int first = 1;
 
 
  do
  do
    {
    {
      if (first)
      if (first)
        foo ();
        foo ();
      else
      else
        bar ();
        bar ();
 
 
      first = 0;
      first = 0;
      bla ();
      bla ();
    } while (i++ < 100);
    } while (i++ < 100);
}
}
 
 
/* Avoid threading in the following two cases, to prevent creating subloops.  */
/* Avoid threading in the following two cases, to prevent creating subloops.  */
 
 
void dont_thread_2 (int first)
void dont_thread_2 (int first)
{
{
  int i = 0;
  int i = 0;
 
 
  do
  do
    {
    {
      if (first)
      if (first)
        foo ();
        foo ();
      else
      else
        bar ();
        bar ();
 
 
      first = 0;
      first = 0;
      bla ();
      bla ();
    } while (i++ < 100);
    } while (i++ < 100);
}
}
 
 
void dont_thread_3 (int nfirst)
void dont_thread_3 (int nfirst)
{
{
  int i = 0;
  int i = 0;
  int first = 0;
  int first = 0;
 
 
  do
  do
    {
    {
      if (first)
      if (first)
        foo ();
        foo ();
      else
      else
        bar ();
        bar ();
 
 
      first = nfirst;
      first = nfirst;
      bla ();
      bla ();
    } while (i++ < 100);
    } while (i++ < 100);
}
}
 
 
/* Avoid threading in this case, in order to avoid creating loop with
/* Avoid threading in this case, in order to avoid creating loop with
   multiple entries.  */
   multiple entries.  */
 
 
void dont_thread_4 (int a, int nfirst)
void dont_thread_4 (int a, int nfirst)
{
{
  int i = 0;
  int i = 0;
  int first;
  int first;
 
 
  if (a)
  if (a)
    first = 0;
    first = 0;
  else
  else
    first = 1;
    first = 1;
 
 
  do
  do
    {
    {
      if (first)
      if (first)
        foo ();
        foo ();
      else
      else
        bar ();
        bar ();
 
 
      first = nfirst;
      first = nfirst;
      bla ();
      bla ();
    } while (i++ < 100);
    } while (i++ < 100);
}
}
 
 
/* { dg-final { scan-tree-dump-times "Jumps threaded: 1" 1 "vrp1"} } */
/* { dg-final { scan-tree-dump-times "Jumps threaded: 1" 1 "vrp1"} } */
/* { dg-final { scan-tree-dump-times "Jumps threaded: 2" 0 "vrp1"} } */
/* { dg-final { scan-tree-dump-times "Jumps threaded: 2" 0 "vrp1"} } */
/* { dg-final { scan-tree-dump-times "Jumps threaded: 1" 0 "dom1"} } */
/* { dg-final { scan-tree-dump-times "Jumps threaded: 1" 0 "dom1"} } */
/* { dg-final { scan-tree-dump-times "Jumps threaded: 2" 1 "dom1"} } */
/* { dg-final { scan-tree-dump-times "Jumps threaded: 2" 1 "dom1"} } */
/* { dg-final { cleanup-tree-dump "dom1" } } */
/* { dg-final { cleanup-tree-dump "dom1" } } */
/* { dg-final { cleanup-tree-dump "vrp1" } } */
/* { dg-final { cleanup-tree-dump "vrp1" } } */
 
 

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