File: wmul-2.c

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gcc-arm-none-eabi 15%3A8-2019-q3-1
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/* { dg-do compile } */
/* { dg-require-effective-target arm_dsp } */
/* { dg-options "-O1 -fexpensive-optimizations -mtune=cortex-a9" } */

void vec_mpy(int y[], const short x[], short scaler)
{
 int i;

 for (i = 0; i < 150; i++)
   y[i] += ((scaler * x[i]) >> 31);
}

/* { dg-final { scan-assembler-times "smulbb" 1 } } */