Viewing file:  bb-slp-48.c (1.05 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-additional-options "-fgimple -fdump-tree-optimized" } */
/* { dg-require-effective-target vect_double } */
double a[2];
void __GIMPLE (ssa,startwith ("fix_loops"))
foo (double x)
{
double tem2;
double tem1;
double _1;
double _2;
double _3;
double _4;
__BB(2):
_1 = a[0];
_2 = x_6(D) * 3.0e+0;
tem1_7 = _1 + _2;
_3 = x_6(D) + 1.0e+0;
_4 = a[1];
tem2_8 = _4 + _3;
a[0] = tem1_7;
a[1] = tem2_8;
return;
}
void __GIMPLE (ssa,startwith ("fix_loops"))
bar (double x)
{
double tem2;
double tem1;
double _1;
double _2;
double _3;
double _4;
__BB(2):
_1 = a[0];
_2 = x_6(D) * 3.0e+0;
tem1_7 = _1 + _2;
_3 = x_6(D) + 1.0e+0;
_4 = a[1];
/* Once with operands swapped. */
tem2_8 = _3 + _4;
a[0] = tem1_7;
a[1] = tem2_8;
return;
}
/* { dg-final { scan-tree-dump-times "optimized: basic block" 2 "slp2" } } */
/* We want to vectorize as { a[0], a[1] } + { x*3, x+1 } and thus
elide one add in each function. */
/* { dg-final { scan-tree-dump-times " \\+ " 4 "optimized" } } */
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