Subversion Repositories openrisc_2011-10-31

/* Skip on MIPS, where LOGICAL_OP_NON_SHORT_CIRCUIT inhibits the setcc

   optimizations that expose the VRP opportunity.  */

/* Skip on S/390 and avr.  Lower values in BRANCH_COST lead to two conditional

   jumps when evaluating an && condition.  VRP is not able to optimize

   this.  */

/* { dg-do compile { target { ! "mips*-*-* s390*-*-*  avr-*-*" } } } */

/* { dg-options "-O2 -fdump-tree-vrp -fdump-tree-dom" } */

/* { dg-options "-O2 -fdump-tree-vrp -fdump-tree-dom -march=i586" { target { i?86-*-* && ilp32 } } } */

int h(int x, int y)

{

  if ((x >= 0 && x <= 1) && (y >= 0 && y <= 1))

    return x && y;

  else

    return -1;

}

int g(int x, int y)

{

  if ((x >= 0 && x <= 1) && (y >= 0 && y <= 1))

    return x || y;

  else

    return -1;

}

int f(int x)

{

  if (x != 0 && x != 1)

    return -2;

  else

    return !x;

}

/* Test that x and y are never compared to 0 -- they're always known to be

/* { dg-final { scan-tree-dump-times "\[xy\]\[^ \]* !=" 0 "vrp1" } } */

/* This one needs more copy propagation that only happens in dom1.  */

/* { dg-final { scan-tree-dump-times "x\[^ \]* & y" 1 "dom1" } } */

/* { dg-final { scan-tree-dump-times "x\[^ \]* & y" 1 "vrp1" { xfail *-*-* } } } */

/* These two are fully simplified by VRP.  */

/* { dg-final { scan-tree-dump-times "x\[^ \]* \[|\] y" 1 "vrp1" } } */

/* { dg-final { scan-tree-dump-times "x\[^ \]* \\^ 1" 1 "vrp1" } } */

/* { dg-final { cleanup-tree-dump "vrp\[0-9\]" } } */

/* { dg-final { cleanup-tree-dump "dom\[0-9\]" } } */