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Merge pull request #35811 from rxwei/69980056-differentiable-reverse

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[AutoDiff] Add '@differentiable(reverse)'.
This commit is contained in:
Richard Wei
2021-02-08 04:32:27 -08:00
committed by GitHub
parent d3db32df8d af8942d940
commit 18fe723543
149 changed files with 1674 additions and 1536 deletions
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8
lib/Serialization/ModuleFormat.h
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@@ -56,7 +56,7 @@ const uint16_t SWIFTMODULE_VERSION_MAJOR = 0;
/// describe what change you made. The content of this comment isn't important;
/// it just ensures a conflict if two people change the module format.
/// Don't worry about adhering to the 80-column limit for this line.
const uint16_t SWIFTMODULE_VERSION_MINOR = 593; // foreign async convention
const uint16_t SWIFTMODULE_VERSION_MINOR = 594; // @differentiable(reverse) attr
/// A standard hash seed used for all string hashes in a serialized module.
///
@@ -237,10 +237,12 @@ using FunctionTypeRepresentationField = BCFixed<4>;
// the module version.
enum class DifferentiabilityKind : uint8_t {
NonDifferentiable = 0,
Forward,
Reverse,
Normal,
Linear,
};
using DifferentiabilityKindField = BCFixed<2>;
using DifferentiabilityKindField = BCFixed<3>;
// These IDs must \em not be renumbered or reordered without incrementing the
// module version.
@@ -1884,7 +1886,7 @@ namespace decls_block {
using DifferentiableDeclAttrLayout = BCRecordLayout<
Differentiable_DECL_ATTR,
BCFixed<1>, // Implicit flag.
BCFixed<1>, // Linear flag.
DifferentiabilityKindField, // Differentiability kind.
GenericSignatureIDField, // Derivative generic signature.
BCArray<BCFixed<1>> // Differentiation parameter indices' bitvector.
>;