IRGen: Address llvm::Intrinsic::getDeclaration deprecation

See llvm/llvm-project#112242.

Author: AnthonyLatsis

lib/IRGen/GenBuiltin.cpp

@@ -444,9 +444,9 @@ void irgen::emitBuiltinCall(IRGenFunction &IGF, const BuiltinInfo &Builtin,
     SmallVector<llvm::Type*, 4> ArgTys;
     for (auto T : IInfo.Types)
       ArgTys.push_back(IGF.IGM.getStorageTypeForLowered(T->getCanonicalType()));
-      
-    auto F = llvm::Intrinsic::getDeclaration(&IGF.IGM.Module,
-                                             (llvm::Intrinsic::ID)IID, ArgTys);
+
+    auto F = llvm::Intrinsic::getOrInsertDeclaration(
+        &IGF.IGM.Module, (llvm::Intrinsic::ID)IID, ArgTys);
     llvm::FunctionType *FT = F->getFunctionType();
     SmallVector<llvm::Value*, 8> IRArgs;
     for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i)
@@ -512,7 +512,7 @@ void irgen::emitBuiltinCall(IRGenFunction &IGF, const BuiltinInfo &Builtin,
     SmallVector<llvm::Type *, 2> ArgTys;                                       \
     auto opType = Builtin.Types[0]->getCanonicalType();                        \
     ArgTys.push_back(IGF.IGM.getStorageTypeForLowered(opType));                \
-    auto F = llvm::Intrinsic::getDeclaration(                                  \
+    auto F = llvm::Intrinsic::getOrInsertDeclaration(                          \
         &IGF.IGM.Module, getLLVMIntrinsicIDForBuiltinWithOverflow(Builtin.ID), \
         ArgTys);                                                               \
     SmallVector<llvm::Value *, 2> IRArgs;                                      \

lib/IRGen/IRBuilder.h

@@ -310,8 +310,8 @@ class IRBuilder : public IRBuilderBase {
   // FunctionPointer.
 
   bool isTrapIntrinsic(llvm::Value *Callee) {
-    return Callee ==
-           llvm::Intrinsic::getDeclaration(getModule(), llvm::Intrinsic::trap);
+    return Callee == llvm::Intrinsic::getOrInsertDeclaration(
+                         getModule(), llvm::Intrinsic::trap);
   }
   bool isTrapIntrinsic(llvm::Intrinsic::ID intrinsicID) {
     return intrinsicID == llvm::Intrinsic::trap;
@@ -381,7 +381,7 @@ class IRBuilder : public IRBuilderBase {
                                       const Twine &name = "") {
     assert(!isTrapIntrinsic(intrinsicID) && "Use CreateNonMergeableTrap");
     auto intrinsicFn =
-      llvm::Intrinsic::getDeclaration(getModule(), intrinsicID);
+        llvm::Intrinsic::getOrInsertDeclaration(getModule(), intrinsicID);
     return CreateCallWithoutDbgLoc(
         cast<llvm::FunctionType>(intrinsicFn->getValueType()), intrinsicFn,
         args, name);
@@ -393,8 +393,8 @@ class IRBuilder : public IRBuilderBase {
                                       ArrayRef<llvm::Value *> args,
                                       const Twine &name = "") {
     assert(!isTrapIntrinsic(intrinsicID) && "Use CreateNonMergeableTrap");
-    auto intrinsicFn =
-      llvm::Intrinsic::getDeclaration(getModule(), intrinsicID, typeArgs);
+    auto intrinsicFn = llvm::Intrinsic::getOrInsertDeclaration(
+        getModule(), intrinsicID, typeArgs);
     return CreateCallWithoutDbgLoc(
         cast<llvm::FunctionType>(intrinsicFn->getValueType()), intrinsicFn,
         args, name);

lib/IRGen/IRGenFunction.cpp

@@ -525,8 +525,8 @@ llvm::CallInst *IRBuilder::CreateNonMergeableTrap(IRGenModule &IGM,
   }
 
   // Emit the trap instruction.
-  llvm::Function *trapIntrinsic =
-      llvm::Intrinsic::getDeclaration(&IGM.Module, llvm::Intrinsic::trap);
+  llvm::Function *trapIntrinsic = llvm::Intrinsic::getOrInsertDeclaration(
+      &IGM.Module, llvm::Intrinsic::trap);
   if (EnableTrapDebugInfo && IGM.DebugInfo && !failureMsg.empty()) {
     IGM.DebugInfo->addFailureMessageToCurrentLoc(*this, failureMsg);
   }