src: cpu: dw: bwd_d: fixup stride_w

Author: nivas-x86

src/cpu/jit_uni_dw_convolution.cpp

@@ -204,6 +204,8 @@ void _jit_uni_dw_convolution_bwd_data_t<isa, diff_dst_type,
         return par_conv;
     };
 
+    const int aux_w
+            = nstl::min(jcp.iw, jcp.iw - jcp.kw + jcp.r_pad + jcp.stride_w);
     const int chb_work = utils::div_up(jcp.nb_ch, jcp.nb_ch_blocking);
     parallel_nd(jcp.mb, chb_work, jcp.ih,
         [&](int n, int chb, int ih) {
@@ -233,8 +235,7 @@ void _jit_uni_dw_convolution_bwd_data_t<isa, diff_dst_type,
             }
 
             // main loop
-            ur_str_w = nstl::min((jcp.iw - jcp.kw + jcp.r_pad - iw)
-                 / jcp.stride_w, jcp.iw);
+            ur_str_w = (aux_w - iw) / jcp.stride_w;
             if (ur_str_w > 0) {
                 jit_conv_call_s par_conv = kernel_params(ur_str_w, iw, oh,
                                              ih, i_t_overflow, i_b_overflow,

tests/benchdnn/inputs/test_conv_regression_general

@@ -109,3 +109,9 @@ mb1_g2ic6oc16_ih5oh5kh1sh1dh0ph0_iw5ow5kw1sw1dw0pw0
 --cfg=f32
 mb1_g1_ic16oc16_kd1kh1kw1_id1ih2iw1_od1oh1ow1_sd1sh3sw1_pd0ph0pw0_dd0dh0dw0n"neg-padding(-1)"
 mb1_g1_ic16oc16_kd1kh1kw1_id2ih2iw1_od1oh1ow1_sd3sh3sw1_pd0ph0pw0_dd0dh0dw0n"neg-padding(-1)"
+
+# Depthwise with large right padding
+--reset --dir=BWD_D
+mb1_g3ic3oc3_ih10oh9kh2sh2dh0ph4
+mb1_g16ic16oc16_ih5oh2kh2sh5ph0
+mb1_g16ic16oc16_ih5oh2kh2sh3ph0