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First step towards DNN optimization for ARMv7 Neon

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Still missing some intrinsics
This commit is contained in:
Jean-Marc Valin 2023-11-26 03:36:46 -05:00
parent c9af8f80f7
commit cc11c078cd
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GPG key ID: 531A52533318F00A
2 changed files with 8 additions and 0 deletions
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1
Makefile.am
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@ -450,6 +450,7 @@ endif
if HAVE_ARM_NEON_INTR
ARM_NEON_INTR_OBJ = $(CELT_SOURCES_ARM_NEON_INTR:.c=.lo) \
$(SILK_SOURCES_ARM_NEON_INTR:.c=.lo) \
$(DNN_SOURCES_NEON:.c=.lo) \
$(SILK_SOURCES_FIXED_ARM_NEON_INTR:.c=.lo)
$(ARM_NEON_INTR_OBJ): CFLAGS += \
$(OPUS_ARM_NEON_INTR_CFLAGS) $(NE10_CFLAGS)

7
dnn/vec_neon.h
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@ -34,6 +34,13 @@
#include <arm_neon.h>
#include "os_support.h"
#if defined(__arm__) && !defined(__aarch64__)
/* Emulate vcvtnq_s32_f32() for ARMv7 Neon. */
static OPUS_INLINE int32x4_t vcvtnq_s32_f32(float32x4_t x) {
return vrshrq_n_s32(vcvtq_n_s32_f32(x, 8), 8);
}
#endif
#ifndef LPCNET_TEST
static inline float32x4_t exp4_approx(float32x4_t x) {
int32x4_t i;