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authorGravatar A. Unique TensorFlower <gardener@tensorflow.org>2017-12-22 19:28:38 -0800
committerGravatar TensorFlower Gardener <gardener@tensorflow.org>2017-12-22 19:32:50 -0800
commit7d1072dd3374a0aa22637a0fd4a17a4ddd064110 (patch)
tree610b7bc7d64a0e31481f7f080f1ce49168120f09 /tensorflow/compiler/xla/service/shape_inference.h
parent12a4c9b8628b23cc2bf4c89c83c32760aded6124 (diff)
Adds FFT for XLA: CPU via Eigen, GPU via cuFFT.
GPU support includes plan reuse with new scratch allocator per execution in fft_thunk. PiperOrigin-RevId: 179983419
Diffstat (limited to 'tensorflow/compiler/xla/service/shape_inference.h')
-rw-r--r--tensorflow/compiler/xla/service/shape_inference.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/tensorflow/compiler/xla/service/shape_inference.h b/tensorflow/compiler/xla/service/shape_inference.h
index c06340d2d5..b39151ebbc 100644
--- a/tensorflow/compiler/xla/service/shape_inference.h
+++ b/tensorflow/compiler/xla/service/shape_inference.h
@@ -109,6 +109,11 @@ class ShapeInference {
const Shape& lhs, const Shape& rhs, const Window& window,
const ConvolutionDimensionNumbers& dimension_numbers);
+ // Infers the shape produced by the given FFT type on the given operand.
+ static StatusOr<Shape> InferFftShape(
+ const Shape& in, FftType fft_type,
+ tensorflow::gtl::ArraySlice<int64> fft_length);
+
// Infers the shape produced a cross replica sum with the given operand
// shapes.
static StatusOr<Shape> InferCrossReplicaSumShape(