Viewing file:  loop-versioning-1.c (1.61 KB) -rw-r--r--
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/* { dg-options "-O3 -fdump-tree-lversion-details" } */
/* { dg-require-effective-target size32plus } */
/* The simplest IV case. */
void
f1 (double *x, int stepx, int n)
{
for (int i = 0; i < n; ++i)
x[stepx * i] = 100;
}
void
f2 (double *x, int stepx, int limit)
{
for (int i = 0; i < limit; i += stepx)
x[i] = 100;
}
void
f3 (double *x, int stepx, int limit)
{
for (double *y = x; y < x + limit; y += stepx)
*y = 100;
}
void
f4 (double *x, int stepx, unsigned int n)
{
for (unsigned int i = 0; i < n; ++i)
x[stepx * i] = 100;
}
void
f5 (double *x, int stepx, unsigned int limit)
{
for (unsigned int i = 0; i < limit; i += stepx)
x[i] = 100;
}
void
f6 (double *x, int stepx, unsigned int limit)
{
for (double *y = x; y < x + limit; y += stepx)
*y = 100;
}
#if __SIZEOF_SIZE_T__ < 4
double x[1000];
#else
double x[10000];
#endif
void
g1 (int stepx, int n)
{
for (int i = 0; i < n; ++i)
x[stepx * i] = 100;
}
void
g2 (int stepx, int limit)
{
for (int i = 0; i < limit; i += stepx)
x[i] = 100;
}
void
g3 (int stepx, int limit)
{
for (double *y = x; y < x + limit; y += stepx)
*y = 100;
}
void
g4 (int stepx, unsigned int n)
{
for (unsigned int i = 0; i < n; ++i)
x[stepx * i] = 100;
}
void
g5 (int stepx, unsigned int limit)
{
for (unsigned int i = 0; i < limit; i += stepx)
x[i] = 100;
}
void
g6 (int stepx, unsigned int limit)
{
for (double *y = x; y < x + limit; y += stepx)
*y = 100;
}
/* { dg-final { scan-tree-dump-times {want to version containing loop} 12 "lversion" } } */
/* { dg-final { scan-tree-dump-times {versioned this loop} 12 "lversion" } } */
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