wehub-resource-sync
27 lines
818 B
C++
27 lines
818 B
C++
#include <riscv_vector.h>
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void MNNMatrixSub(float *C, const float *A, const float *B,
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size_t widthC4, size_t cStride, size_t aStride,
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size_t bStride, size_t height) {
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size_t total = widthC4 * 4;
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for (int y = 0; y < height; ++y) {
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auto a = A + aStride * y;
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auto b = B + bStride * y;
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auto c = C + cStride * y;
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size_t n = total;
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while (n > 0) {
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size_t vl = __riscv_vsetvl_e32m8(n);
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vfloat32m8_t va = __riscv_vle32_v_f32m8(a, vl);
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vfloat32m8_t vb = __riscv_vle32_v_f32m8(b, vl);
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vfloat32m8_t vc = __riscv_vfsub_vv_f32m8(va, vb, vl);
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__riscv_vse32_v_f32m8(c, vc, vl);
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a += vl;
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b += vl;
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c += vl;
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n -= vl;
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}
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}
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}
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