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/* i?86 does not have V2SF, x32 does though. */
/* { dg-do compile { target { ! ia32 } } } */
/* { dg-options "-O3 -mavx -mfma" } */
struct Matrix
{
float m11;
float m12;
float m21;
float m22;
float dx;
float dy;
};
struct Matrix multiply(const struct Matrix *a, const struct Matrix *b)
{
struct Matrix out;
out.m11 = a->m11*b->m11 + a->m12*b->m21;
out.m12 = a->m11*b->m12 + a->m12*b->m22;
out.m21 = a->m21*b->m11 + a->m22*b->m21;
out.m22 = a->m21*b->m12 + a->m22*b->m22;
out.dx = a->dx*b->m11 + a->dy*b->m21 + b->dx;
out.dy = a->dx*b->m12 + a->dy*b->m22 + b->dy;
return out;
}
/* The whole kernel should be vectorized with V4SF and V2SF operations. */
/* { dg-final { scan-assembler-times "vadd" 1 } } */
/* { dg-final { scan-assembler-times "vmul" 2 } } */
/* { dg-final { scan-assembler-times "vfma" 2 } } */
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