gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-31.c

/* { dg-do compile } */
/* { dg-options "-O -fdump-tree-fre1-details -fno-tree-forwprop" } */
/* { dg-additional-options "-fno-common" { target hppa*-*-hpux* } } */

typedef double d128 __attribute__((vector_size(16)));
typedef float f128 __attribute__((vector_size(16)));
typedef short s128 __attribute__((vector_size(16)));
typedef char c256 __attribute__((vector_size(32)));

d128 d;
f128 f;
s128 s;
c256 c;

void test1 (double x)
{
  d = (d128){x + x, x + x};
  d = (d128){x + x, x + x};
}

void test2 (float x)
{
  f = (f128){x + x, x + x, x + x, x + x};
  f = (f128){x + x, x + x, x + x, x + x};
}

void test3 (short x)
{
  s = (s128){x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x};
  s = (s128){x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x};
}

void test4 (unsigned char x)
{
  c = (c256){x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x,
      x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x,
      x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x,
      x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x};
  c = (c256){x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x,
      x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x,
      x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x,
      x + x, x + x, x + x, x + x, x + x, x + x, x + x, x + x};
}

/* { dg-final { scan-tree-dump-times "Replaced \{" 4 "fre1" } } */
/* { dg-final { scan-tree-dump-times "Deleted redundant store" 4 "fre1" } } */