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Merge pull request #27510 from fengyuentau:4x/core/reduce_simd

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core: vectorize cv::reduce #27510

- [ ] ~reduceR_~ Dropped due to performance
- [x] reduceC_

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
This commit is contained in:
Yuantao Feng
2026-07-16 03:36:29 +08:00
committed by GitHub
parent 6b640b424c
commit 2e778c52c1
11 changed files with 4063 additions and 26 deletions
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modules/core/include/opencv2/core/hal/intrin_rvv_scalable.hpp
+1 -1
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@@ -939,7 +939,7 @@ inline scalartype v_reduce_sum(const _Tpvec& a) \
}
OPENCV_HAL_IMPL_RVV_REDUCE_SUM_FP(v_float32, v_float32, vfloat32m1_t, float, f32, VTraits<v_float32>::vlanes())
#if CV_SIMD_SCALABLE_64F
OPENCV_HAL_IMPL_RVV_REDUCE_SUM_FP(v_float64, v_float64, vfloat64m1_t, float, f64, VTraits<v_float64>::vlanes())
OPENCV_HAL_IMPL_RVV_REDUCE_SUM_FP(v_float64, v_float64, vfloat64m1_t, double, f64, VTraits<v_float64>::vlanes())
#endif
#define OPENCV_HAL_IMPL_RVV_REDUCE(_Tpvec, _nTpvec, func, scalartype, suffix, vl, red) \