[llvm] Support building with c++23 (#154372)

closes #154331 

This PR addresses all minimum changes needed to compile LLVM and MLIR
with the c++23 standard.
It is a work in progress and to be reviewed for better methods of
handling the parts of the build broken by c++23.

1 files changed, 17 insertions, 0 deletions

diff --git a/llvm/tools/llvm-cov/SourceCoverageView.cpp b/llvm/tools/llvm-cov/SourceCoverageView.cpp
index dfecddf..336ed47 100644
--- a/llvm/tools/llvm-cov/SourceCoverageView.cpp
+++ b/llvm/tools/llvm-cov/SourceCoverageView.cpp
@@ -21,6 +21,23 @@
 
 using namespace llvm;
 
+ExpansionView::ExpansionView(const CounterMappingRegion &Region,
+                             std::unique_ptr<SourceCoverageView> View)
+    : Region(Region), View(std::move(View)) {}
+
+ExpansionView::ExpansionView(ExpansionView &&RHS)
+    : Region(std::move(RHS.Region)), View(std::move(RHS.View)) {}
+
+ExpansionView &ExpansionView::operator=(ExpansionView &&RHS) {
+  Region = std::move(RHS.Region);
+  View = std::move(RHS.View);
+  return *this;
+}
+
+InstantiationView::InstantiationView(StringRef FunctionName, unsigned Line,
+                                     std::unique_ptr<SourceCoverageView> View)
+    : FunctionName(FunctionName), Line(Line), View(std::move(View)) {}
+
 void CoveragePrinter::StreamDestructor::operator()(raw_ostream *OS) const {
   if (OS == &outs())
     return;