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Make infer shape of pad2d support for input with negative dims in compile time #18695

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Merged
wanghaoshuang merged 1 commit into from
Jul 22, 2019
Merged

Make infer shape of pad2d support for input with negative dims in compile time #18695

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22 changes: 15 additions & 7 deletions paddle/fluid/operators/pad2d_op.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -495,13 +495,21 @@ class Pad2dOp : public framework::OperatorWithKernel {
PADDLE_ENFORCE_EQ(paddings.size(), 4,
"Size of paddings should be equal to 4.");
if (data_format == "NCHW") {
out_dims[1] = x_dim[1];
out_dims[2] = x_dim[2] + paddings[0] + paddings[1]; // height
out_dims[3] = x_dim[3] + paddings[2] + paddings[3]; // width
} else { // NHWC
out_dims[3] = x_dim[3];
out_dims[1] = x_dim[1] + paddings[0] + paddings[1];
out_dims[2] = x_dim[2] + paddings[2] + paddings[3];
out_dims[1] = x_dim[1]; // channel
out_dims[2] = ((!ctx->IsRuntime()) && (x_dim[2] < 0))
? x_dim[2]
: (x_dim[2] + paddings[0] + paddings[1]); // height
out_dims[3] = ((!ctx->IsRuntime()) && (x_dim[3] < 0))
? x_dim[3]
: (x_dim[3] + paddings[2] + paddings[3]); // width
} else { // NHWC
out_dims[3] = x_dim[3]; // channel
out_dims[1] = ((!ctx->IsRuntime()) && (x_dim[1] < 0))
? x_dim[1]
: (x_dim[1] + paddings[0] + paddings[1]); // height
out_dims[2] = ((!ctx->IsRuntime()) && (x_dim[2] < 0))
? x_dim[2]
: (x_dim[2] + paddings[2] + paddings[3]); // width
}
}

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