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-rw-r--r--clang/lib/AST/ASTContext.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index 2e906247cc1..c81d5786402 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -9483,6 +9483,23 @@ bool ASTContext::DeclMustBeEmitted(const Decl *D) {
return false;
}
+void ASTContext::forEachMultiversionedFunctionVersion(
+ const FunctionDecl *FD,
+ llvm::function_ref<void(const FunctionDecl *)> Pred) const {
+ assert(FD->isMultiVersion() && "Only valid for multiversioned functions");
+ llvm::SmallDenseSet<const FunctionDecl*, 4> SeenDecls;
+ FD = FD->getCanonicalDecl();
+ for (auto *CurDecl :
+ FD->getDeclContext()->getRedeclContext()->lookup(FD->getDeclName())) {
+ FunctionDecl *CurFD = CurDecl->getAsFunction()->getCanonicalDecl();
+ if (CurFD && hasSameType(CurFD->getType(), FD->getType()) &&
+ std::end(SeenDecls) == llvm::find(SeenDecls, CurFD)) {
+ SeenDecls.insert(CurFD);
+ Pred(CurFD);
+ }
+ }
+}
+
CallingConv ASTContext::getDefaultCallingConvention(bool IsVariadic,
bool IsCXXMethod) const {
// Pass through to the C++ ABI object
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