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/* { dg-do compile } */
/* { dg-options "-Ofast -fdump-tree-optimized-raw" } */
float
extract_square (float *a, float *b, float x, float y)
{
*a = 3 / (y * y);
*b = 5 / (y * y);
return x / (y * y);
}
/* Don't expect the 'powmult' (calculation of y * y)
to be deleted until a later pass, so look for one
more multiplication than strictly necessary. */
float
extract_recip (float *a, float *b, float x, float y, float z)
{
*a = 7 / y;
*b = x / (y * y);
return z / y;
}
/* 4 multiplications in 'extract_square', and 4 in 'extract_recip'. */
/* { dg-final { scan-tree-dump-times "mult_expr" 8 "optimized" } } */
/* 1 division in 'extract_square', 1 division in 'extract_recip'. */
/* { dg-final { scan-tree-dump-times "rdiv_expr" 2 "optimized" } } */
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