vabsq_f64ADD TO COMPARE ADDED TO COMPARE
Arm 64-bit (64 bits)/ NEON
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Purpose:
Absolute value (vector). This instruction calculates the absolute value of each vector element in the source SIMD&FP register, puts the result into a vector, and writes the vector to the destination SIMD&FP register.
Result:
float64x2_t
Example:
#include <arm_neon.h>
#include <stdio.h>
int main() {
double data[2] = {
-1.0, 2.0
};
float64x2_t a = vld1q_f64(data);
float64x2_t result = vabsq_f64(a);
double result_data[2];
vst1q_f64(result_data, result);
printf("%f %f\n", result_data[0], result_data[1]);
return 0;
}Prototypes
Assembly Instruction:
FABS
Usage:
float64x2_t result =
vabsq_f64(
float64x2_t a
)
Performance Metrics:
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SIMD Intrinsics Summary
| SIMD Engines: | 6 |
| C Intrinsics: | 10444 |
| NEON: | 4353 |
| AVX2: | 405 |
| AVX512: | 4717 |
| SSE4.2: | 598 |
| VSX: | 192 |
| IBM-Z: | 179 |