[OpenACC][CIR] Basic infrastructure for OpenACC lowering (#134717)

This is the first of a few patches that will do infrastructure work to
enable the OpenACC lowering via the OpenACC dialect.

At the moment this just gets the various function calls that will end up
generating OpenACC, plus some tests to validate that we're doing the
diagnostics in OpenACC specific locations.

Additionally, this adds Stmt and Decl files for CIRGen.

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/lib/CIR/CodeGen/CIRGenModule.cpp b/clang/lib/CIR/CodeGen/CIRGenModule.cpp
index d3b3b06..f0e9b03 100644
--- a/clang/lib/CIR/CodeGen/CIRGenModule.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenModule.cpp
@@ -16,6 +16,7 @@
 
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/DeclBase.h"
+#include "clang/AST/DeclOpenACC.h"
 #include "clang/AST/GlobalDecl.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/CIR/Dialect/IR/CIRDialect.h"
@@ -91,6 +92,11 @@ mlir::Location CIRGenModule::getLoc(SourceRange cRange) {
 }
 
 void CIRGenModule::emitGlobal(clang::GlobalDecl gd) {
+  if (const auto *cd = dyn_cast<clang::OpenACCConstructDecl>(gd.getDecl())) {
+    emitGlobalOpenACCDecl(cd);
+    return;
+  }
+
   const auto *global = cast<ValueDecl>(gd.getDecl());
 
   if (const auto *fd = dyn_cast<FunctionDecl>(global)) {
@@ -423,6 +429,12 @@ void CIRGenModule::emitTopLevelDecl(Decl *decl) {
     emitGlobal(vd);
     break;
   }
+  case Decl::OpenACCRoutine:
+    emitGlobalOpenACCDecl(cast<OpenACCRoutineDecl>(decl));
+    break;
+  case Decl::OpenACCDeclare:
+    emitGlobalOpenACCDecl(cast<OpenACCDeclareDecl>(decl));
+    break;
   }
 }