From d0eed3480b1d7852f8b1293f1cee0ad318a6a469 Mon Sep 17 00:00:00 2001
From: Nathan Lanza <nathanlanza@gmail.com>
Date: Tue, 16 Apr 2024 22:11:47 -0700
Subject: [PATCH] [CIR][Rebase] Add new enum type handling

---
 clang/lib/CIR/CodeGen/CIRGenExpr.cpp          | 2 ++
 clang/lib/CIR/CodeGen/CIRGenExprAgg.cpp       | 2 ++
 clang/lib/CIR/CodeGen/CIRGenExprConst.cpp     | 1 +
 clang/lib/CIR/CodeGen/CIRGenFunction.cpp      | 4 ++++
 clang/lib/CIR/CodeGen/CIRGenItaniumCXXABI.cpp | 4 ++++
 clang/lib/CIR/CodeGen/CIRGenTypes.cpp         | 2 ++
 6 files changed, 15 insertions(+)

diff --git a/clang/lib/CIR/CodeGen/CIRGenExpr.cpp b/clang/lib/CIR/CodeGen/CIRGenExpr.cpp
index 2945ab084641..b79c5ed26151 100644
--- a/clang/lib/CIR/CodeGen/CIRGenExpr.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenExpr.cpp
@@ -21,6 +21,7 @@
 
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/GlobalDecl.h"
+#include "clang/AST/OperationKinds.h"
 #include "clang/Basic/Builtins.h"
 #include "clang/CIR/Dialect/IR/CIRDialect.h"
 #include "clang/CIR/Dialect/IR/CIROpsEnums.h"
@@ -1601,6 +1602,7 @@ LValue CIRGenFunction::buildStringLiteralLValue(const StringLiteral *E) {
 /// result, including noop aggregate casts, and cast from scalar to union.
 LValue CIRGenFunction::buildCastLValue(const CastExpr *E) {
   switch (E->getCastKind()) {
+  case CK_HLSLArrayRValue:
   case CK_HLSLVectorTruncation:
   case CK_ToVoid:
   case CK_BitCast:
diff --git a/clang/lib/CIR/CodeGen/CIRGenExprAgg.cpp b/clang/lib/CIR/CodeGen/CIRGenExprAgg.cpp
index ae627ef50d59..06139f66c017 100644
--- a/clang/lib/CIR/CodeGen/CIRGenExprAgg.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenExprAgg.cpp
@@ -599,6 +599,8 @@ bool AggExprEmitter::TypeRequiresGCollection(QualType T) {
 /// TODO(cir): this can be shared with LLVM codegen.
 static bool castPreservesZero(const CastExpr *CE) {
   switch (CE->getCastKind()) {
+  case CK_HLSLArrayRValue:
+    llvm_unreachable("NYI");
   case CK_HLSLVectorTruncation:
     llvm_unreachable("NYI");
     // No-ops.
diff --git a/clang/lib/CIR/CodeGen/CIRGenExprConst.cpp b/clang/lib/CIR/CodeGen/CIRGenExprConst.cpp
index 0d4bbd35d3c2..8c527c2072bd 100644
--- a/clang/lib/CIR/CodeGen/CIRGenExprConst.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenExprConst.cpp
@@ -877,6 +877,7 @@ class ConstExprEmitter
     Expr *subExpr = E->getSubExpr();
 
     switch (E->getCastKind()) {
+    case CK_HLSLArrayRValue:
     case CK_HLSLVectorTruncation:
     case CK_ToUnion:
       llvm_unreachable("not implemented");
diff --git a/clang/lib/CIR/CodeGen/CIRGenFunction.cpp b/clang/lib/CIR/CodeGen/CIRGenFunction.cpp
index 6aa98084ba28..9a4698681fad 100644
--- a/clang/lib/CIR/CodeGen/CIRGenFunction.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenFunction.cpp
@@ -56,6 +56,8 @@ TypeEvaluationKind CIRGenFunction::getEvaluationKind(QualType type) {
   type = type.getCanonicalType();
   while (true) {
     switch (type->getTypeClass()) {
+    case Type::ArrayParameter:
+      llvm_unreachable("NYI");
 #define TYPE(name, parent)
 #define ABSTRACT_TYPE(name, parent)
 #define NON_CANONICAL_TYPE(name, parent) case Type::name:
@@ -1554,6 +1556,8 @@ void CIRGenFunction::buildVariablyModifiedType(QualType type) {
 
     const Type *ty = type.getTypePtr();
     switch (ty->getTypeClass()) {
+    case Type::ArrayParameter:
+      llvm_unreachable("NYI");
     case clang::Type::CountAttributed:
     case clang::Type::PackIndexing:
       llvm_unreachable("NYI");
diff --git a/clang/lib/CIR/CodeGen/CIRGenItaniumCXXABI.cpp b/clang/lib/CIR/CodeGen/CIRGenItaniumCXXABI.cpp
index c8a374faa41e..a14cbb03d98b 100644
--- a/clang/lib/CIR/CodeGen/CIRGenItaniumCXXABI.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenItaniumCXXABI.cpp
@@ -1467,6 +1467,8 @@ void CIRGenItaniumRTTIBuilder::BuildVTablePointer(mlir::Location loc,
   const char *VTableName = nullptr;
 
   switch (Ty->getTypeClass()) {
+  case Type::ArrayParameter:
+    llvm_unreachable("NYI");
 #define TYPE(Class, Base)
 #define ABSTRACT_TYPE(Class, Base)
 #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) case Type::Class:
@@ -1838,6 +1840,8 @@ mlir::Attribute CIRGenItaniumRTTIBuilder::BuildTypeInfo(
   Fields.push_back(TypeNameField);
 
   switch (Ty->getTypeClass()) {
+  case Type::ArrayParameter:
+    llvm_unreachable("NYI");
 #define TYPE(Class, Base)
 #define ABSTRACT_TYPE(Class, Base)
 #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) case Type::Class:
diff --git a/clang/lib/CIR/CodeGen/CIRGenTypes.cpp b/clang/lib/CIR/CodeGen/CIRGenTypes.cpp
index a5bbf40c238b..f3e73df675ce 100644
--- a/clang/lib/CIR/CodeGen/CIRGenTypes.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenTypes.cpp
@@ -374,6 +374,8 @@ mlir::Type CIRGenTypes::ConvertType(QualType T) {
   // If we don't have it in the cache, convert it now.
   mlir::Type ResultType = nullptr;
   switch (Ty->getTypeClass()) {
+  case Type::ArrayParameter:
+    llvm_unreachable("NYI");
   case Type::Record: // Handled above.
 #define TYPE(Class, Base)
 #define ABSTRACT_TYPE(Class, Base)