avg_pool1d_backward_f32

void avg_pool1d_backward_f32(const float * g, float * dx, int B, int C, int L, int KL, int OL, int stride_l, int pad_l)

Single-precision 1-D average-pool backward — broadcasts each upstream gradient uniformly back into its source window with the fixed 1/KL weight.

The caller must zero dx because overlapping windows accumulate into the same input slots.

gconst float*

Upstream gradient of shape (B, C, OL).

dxfloat*

Output gradient of shape (B, C, L); accumulated.

B, C, L, KL, OL, stride_l, pad_lint

Layout and window parameters matching the forward call.