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cross-module-optimization: Don't serialize functions which reference implementationOnly-imported functions

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The check for implementationOnly imports was already done for types, but it was missing for functions.
Fixes a crash when implementationOnly-importing a C module.

https://bugs.swift.org/browse/SR-15048
rdar://81701218
This commit is contained in:
Erik Eckstein
2021-08-19 11:06:16 +02:00
parent 990fc4b815
commit c1e1bf2bd6
12 changed files with 57 additions and 18 deletions
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7
include/swift/AST/Module.h
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@@ -676,9 +676,10 @@ public:
/// This assumes that \p module was imported.
bool isImportedImplementationOnly(const ModuleDecl *module) const;
/// Returns true if a function, which is using \p nominal, can be serialized
/// by cross-module-optimization.
bool canBeUsedForCrossModuleOptimization(NominalTypeDecl *nominal) const;
/// Returns true if decl context or its content can be serialized by
/// cross-module-optimization.
/// The \p ctxt can e.g. be a NominalType or the context of a function.
bool canBeUsedForCrossModuleOptimization(DeclContext *ctxt) const;
/// Finds all top-level decls of this module.
///