================
@@ -4344,6 +4344,112 @@ class SizeOfPackExpr final
}
};
+class PackIndexingExpr final
+ : public Expr,
+ private llvm::TrailingObjects<PackIndexingExpr, Expr *> {
+ friend class ASTStmtReader;
+ friend class ASTStmtWriter;
+ friend TrailingObjects;
+
+ SourceLocation EllipsisLoc;
+
+ // The location of the closing bracket
+ SourceLocation RSquareLoc;
+
+ // The pack being indexed, followed by the index
+ Stmt *SubExprs[2];
+
+ // The evaluated index
+ std::optional<int64_t> Index;
+
+ size_t TransformedExpressions;
+
+ PackIndexingExpr(QualType Type, SourceLocation EllipsisLoc,
+ SourceLocation RSquareLoc, Expr *PackIdExpr, Expr
*IndexExpr,
+ std::optional<int64_t> Index = std::nullopt,
+ ArrayRef<Expr *> SubstitutedExprs = {})
+ : Expr(PackIndexingExprClass, Type, VK_LValue, OK_Ordinary),
+ EllipsisLoc(EllipsisLoc), RSquareLoc(RSquareLoc),
+ SubExprs{PackIdExpr, IndexExpr}, Index(Index),
+ TransformedExpressions(SubstitutedExprs.size()) {
+
+ auto *Exprs = getTrailingObjects<Expr *>();
+ std::uninitialized_copy(SubstitutedExprs.begin(), SubstitutedExprs.end(),
+ Exprs);
+
+ ExprDependence D = IndexExpr->getDependence();
----------------
erichkeane wrote:
I THINK most of this dependence calculation should be moved into the
'calculateDependence' infrastructure, right? There is a file somewhere where
all of these are implemented.
https://github.com/llvm/llvm-project/pull/72644
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