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Fix a check fail in Fast Fourier implementation #49586

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May 28, 2021
Merged

Fix a check fail in Fast Fourier implementation #49586

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4 changes: 4 additions & 0 deletions tensorflow/core/kernels/fft_ops.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "tensorflow/core/platform/errors.h"
#define EIGEN_USE_THREADS

// See docs in ../ops/fft_ops.cc.
Expand Down Expand Up @@ -261,6 +262,9 @@ class FFTCPU : public FFTBase {
i == FFTRank ? fft_shape[i - 1] / 2 + 1 : fft_shape[i - 1];
full_fft_shape.AddDim(fft_shape[i - 1]);
}
OP_REQUIRES(ctx, full_fft_shape.num_elements() > 0,
errors::InvalidArgument("Obtained a FFT shape of 0 elements: ",
full_fft_shape.DebugString()));

Tensor temp;
OP_REQUIRES_OK(ctx, ctx->allocate_temp(DataTypeToEnum<ComplexT>::v(),
Expand Down