[DirectX] Annotate interfaces for DLL export

This is largely based off of #143615, but for the DirectX target which
is still in experimental.

Author: bogner

llvm/include/llvm/InitializePasses.h

@@ -90,7 +90,6 @@ LLVM_ABI void initializeDSELegacyPassPass(PassRegistry &);
 LLVM_ABI void initializeDXILMetadataAnalysisWrapperPassPass(PassRegistry &);
 LLVM_ABI void initializeDXILMetadataAnalysisWrapperPrinterPass(PassRegistry &);
 LLVM_ABI void initializeDXILResourceBindingWrapperPassPass(PassRegistry &);
-LLVM_ABI void initializeDXILResourceImplicitBindingLegacyPass(PassRegistry &);
 LLVM_ABI void initializeDXILResourceTypeWrapperPassPass(PassRegistry &);
 LLVM_ABI void initializeDXILResourceWrapperPassPass(PassRegistry &);
 LLVM_ABI void initializeDeadMachineInstructionElimPass(PassRegistry &);

llvm/lib/Target/DirectX/DirectXAsmPrinter.cpp

@@ -52,6 +52,7 @@ void DXILAsmPrinter::emitGlobalVariable(const GlobalVariable *GV) {
   emitGlobalConstant(GV->getDataLayout(), GV->getInitializer());
 }
 
-extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeDirectXAsmPrinter() {
+extern "C" LLVM_ABI LLVM_EXTERNAL_VISIBILITY void
+LLVMInitializeDirectXAsmPrinter() {
   RegisterAsmPrinter<DXILAsmPrinter> X(getTheDirectXTarget());
 }

llvm/lib/Target/DirectX/DirectXTargetMachine.cpp

@@ -53,7 +53,8 @@
 
 using namespace llvm;
 
-extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeDirectXTarget() {
+extern "C" LLVM_ABI LLVM_EXTERNAL_VISIBILITY void
+LLVMInitializeDirectXTarget() {
   RegisterTargetMachine<DirectXTargetMachine> X(getTheDirectXTarget());
   auto *PR = PassRegistry::getPassRegistry();
   initializeDXILIntrinsicExpansionLegacyPass(*PR);

llvm/lib/Target/DirectX/MCTargetDesc/DirectXMCTargetDesc.cpp

@@ -132,7 +132,8 @@ static MCRegisterInfo *createDirectXMCRegisterInfo(const Triple &Triple) {
 
 static MCInstrInfo *createDirectXMCInstrInfo() { return new MCInstrInfo(); }
 
-extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeDirectXTargetMC() {
+extern "C" LLVM_ABI LLVM_EXTERNAL_VISIBILITY void
+LLVMInitializeDirectXTargetMC() {
   Target &T = getTheDirectXTarget();
   RegisterMCAsmInfo<DirectXMCAsmInfo> X(T);
   TargetRegistry::RegisterMCInstrInfo(T, createDirectXMCInstrInfo);

llvm/lib/Target/DirectX/TargetInfo/DirectXTargetInfo.cpp

@@ -24,7 +24,8 @@ Target &getTheDirectXTarget() {
 
 using namespace llvm;
 
-extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeDirectXTargetInfo() {
+extern "C" LLVM_ABI LLVM_EXTERNAL_VISIBILITY void
+LLVMInitializeDirectXTargetInfo() {
   RegisterTarget<Triple::dxil, /*HasJIT=*/false> X(
       getTheDirectXTarget(), "dxil", "DirectX Intermediate Language", "DXIL");
 }