Mark CompositeType::getTypeAtIndex as const. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243845 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/IR/DerivedTypes.h b/include/llvm/IR/DerivedTypes.h
index 96962da599f65feecedd3c6d3698b9221124b85a..d28847e4ff384a7add9c08c9e648470fbac18c2a 100644 (file)
--- a/include/llvm/IR/DerivedTypes.h
+++ b/include/llvm/IR/DerivedTypes.h
@@ -153,8 +153,8 @@ public:
   /// getTypeAtIndex - Given an index value into the type, return the type of
   /// the element.
   ///
-  Type *getTypeAtIndex(const Value *V);
-  Type *getTypeAtIndex(unsigned Idx);
+  Type *getTypeAtIndex(const Value *V) const;
+  Type *getTypeAtIndex(unsigned Idx) const;
   bool indexValid(const Value *V) const;
   bool indexValid(unsigned Idx) const;
 

diff --git a/lib/IR/Type.cpp b/lib/IR/Type.cpp
index 553fa93f5856e40822b2b7cad6ec702d9e8eaed3..1b46b7b01cbb492ad0220e0c1325cf7b5bc2020a 100644 (file)
--- a/lib/IR/Type.cpp
+++ b/lib/IR/Type.cpp
@@ -620,8 +620,8 @@ StructType *Module::getTypeByName(StringRef Name) const {
 //                       CompositeType Implementation
 //===----------------------------------------------------------------------===//
 
-Type *CompositeType::getTypeAtIndex(const Value *V) {
-  if (StructType *STy = dyn_cast<StructType>(this)) {
+Type *CompositeType::getTypeAtIndex(const Value *V) const {
+  if (auto *STy = dyn_cast<StructType>(this)) {
     unsigned Idx =
       (unsigned)cast<Constant>(V)->getUniqueInteger().getZExtValue();
     assert(indexValid(Idx) && "Invalid structure index!");
@@ -630,14 +630,16 @@ Type *CompositeType::getTypeAtIndex(const Value *V) {
 
   return cast<SequentialType>(this)->getElementType();
 }
-Type *CompositeType::getTypeAtIndex(unsigned Idx) {
-  if (StructType *STy = dyn_cast<StructType>(this)) {
+
+Type *CompositeType::getTypeAtIndex(unsigned Idx) const{
+  if (auto *STy = dyn_cast<StructType>(this)) {
     assert(indexValid(Idx) && "Invalid structure index!");
     return STy->getElementType(Idx);
   }
-  
+
   return cast<SequentialType>(this)->getElementType();
 }
+
 bool CompositeType::indexValid(const Value *V) const {
   if (auto *STy = dyn_cast<StructType>(this)) {
     // Structure indexes require (vectors of) 32-bit integer constants.  In the