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[AutoDiff] Change derivative vtable thunk linkage to private.

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Derivative vtable thunks should never be public. They are only called through vtable lookup.

Resolves rdar://73791807.
This commit is contained in:
Richard Wei
2021-02-16 02:58:05 -05:00
parent 6eb00d5c39
commit 3c02dba2c4
5 changed files with 13 additions and 15 deletions
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2
lib/SIL/IR/SILDeclRef.cpp
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@@ -701,7 +701,7 @@ std::string SILDeclRef::mangle(ManglingKind MKind) const {
AutoDiffConfig silConfig(
silParameterIndices, resultIndices,
derivativeFunctionIdentifier->getDerivativeGenericSignature());
return mangler.mangleAutoDiffDerivativeFunction(
return mangler.mangleAutoDiffDerivativeFunction(
asAutoDiffOriginalFunction().getAbstractFunctionDecl(),
derivativeFunctionIdentifier->getKind(),
silConfig);