[CodeGen] Use llvm::LLVMContext::MD_nontemporal (NFC)

Author: kazutakahirata

clang/lib/CodeGen/CGBuiltin.cpp

@@ -14504,7 +14504,7 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
 
     // Unaligned nontemporal store of the scalar value.
     StoreInst *SI = Builder.CreateDefaultAlignedStore(Src, BC);
-    SI->setMetadata(CGM.getModule().getMDKindID("nontemporal"), Node);
+    SI->setMetadata(llvm::LLVMContext::MD_nontemporal, Node);
     SI->setAlignment(llvm::Align(1));
     return SI;
   }
@@ -20226,8 +20226,7 @@ Value *CodeGenFunction::EmitRISCVBuiltinExpr(unsigned BuiltinID,
     LoadInst *Load = Builder.CreateLoad(
         Address(Ops[0], ResTy, CharUnits::fromQuantity(Width / 8)));
 
-    Load->setMetadata(CGM.getModule().getMDKindID("nontemporal"),
-                      NontemporalNode);
+    Load->setMetadata(llvm::LLVMContext::MD_nontemporal, NontemporalNode);
     Load->setMetadata(CGM.getModule().getMDKindID("riscv-nontemporal-domain"),
                       RISCVDomainNode);
 
@@ -20246,8 +20245,7 @@ Value *CodeGenFunction::EmitRISCVBuiltinExpr(unsigned BuiltinID,
         Ops[0], llvm::PointerType::getUnqual(Ops[1]->getType()), "cast");
 
     StoreInst *Store = Builder.CreateDefaultAlignedStore(Ops[1], BC);
-    Store->setMetadata(CGM.getModule().getMDKindID("nontemporal"),
-                       NontemporalNode);
+    Store->setMetadata(llvm::LLVMContext::MD_nontemporal, NontemporalNode);
     Store->setMetadata(CGM.getModule().getMDKindID("riscv-nontemporal-domain"),
                        RISCVDomainNode);
 

clang/lib/CodeGen/CGExpr.cpp

@@ -1777,7 +1777,7 @@ llvm::Value *CodeGenFunction::EmitLoadOfScalar(Address Addr, bool Volatile,
   if (isNontemporal) {
     llvm::MDNode *Node = llvm::MDNode::get(
         Load->getContext(), llvm::ConstantAsMetadata::get(Builder.getInt32(1)));
-    Load->setMetadata(CGM.getModule().getMDKindID("nontemporal"), Node);
+    Load->setMetadata(llvm::LLVMContext::MD_nontemporal, Node);
   }
 
   CGM.DecorateInstructionWithTBAA(Load, TBAAInfo);
@@ -1916,7 +1916,7 @@ void CodeGenFunction::EmitStoreOfScalar(llvm::Value *Value, Address Addr,
     llvm::MDNode *Node =
         llvm::MDNode::get(Store->getContext(),
                           llvm::ConstantAsMetadata::get(Builder.getInt32(1)));
-    Store->setMetadata(CGM.getModule().getMDKindID("nontemporal"), Node);
+    Store->setMetadata(llvm::LLVMContext::MD_nontemporal, Node);
   }
 
   CGM.DecorateInstructionWithTBAA(Store, TBAAInfo);