Add two new AST nodes to represent initialization of an array in terms of

initialization of each array element:

 * ArrayInitLoopExpr is a prvalue of array type with two subexpressions:
   a common expression (an OpaqueValueExpr) that represents the up-front
   computation of the source of the initialization, and a subexpression
   representing a per-element initializer
 * ArrayInitIndexExpr is a prvalue of type size_t representing the current
   position in the loop

This will be used to replace the creation of explicit index variables in lambda
capture of arrays and copy/move construction of classes with array elements,
and also C++17 structured bindings of arrays by value (which inexplicably allow
copying an array by value, unlike all of C++'s other array declarations).

No uses of these nodes are introduced by this change, however.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@289413 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/AST/StmtProfile.cpp b/lib/AST/StmtProfile.cpp
index d8185d35dd..b55250056c 100644
--- a/lib/AST/StmtProfile.cpp
+++ b/lib/AST/StmtProfile.cpp
@@ -972,6 +972,14 @@ void StmtProfiler::VisitDesignatedInitUpdateExpr(
                    "initializer");
 }
 
+void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
+  VisitExpr(S);
+}
+
+void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
+  VisitExpr(S);
+}
+
 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
 }