AlanCui

arm_float_to_q31: why not to use VCVT.F32.S32 on Cortex-M4F

4

Hi, As what we know, Cortex-M4F implemented a little set of FPU instructions including VCVT.F32.S32, and GCC did have a builtin intrinsic for it. But the question is why the...

VCVT.F32.S32: missing in intrinsics

1

As https://github.com/ARM-software/CMSIS-DSP/issues/212, VCVT.F32.S32 for Cortex-M4F is not included in ACLE, and can accelerate arm_float_to_q31().