[LLVM-C] Add Bindings to the Globals Mod/Ref Alias Analysis Pass

[CodaFi]

Summary

Does what it says on the tin.

[whitequark]

LGTM

llvm/include/llvm-c/Analysis.h

 LLVMBool LLVMVerifyFunction(LLVMValueRef Fn, LLVMVerifierFailureAction Action);
 
 /* Open up a ghostview window that displays the CFG of the current function.
    Useful for debugging. */
 void LLVMViewFunctionCFG(LLVMValueRef Fn);
 void LLVMViewFunctionCFGOnly(LLVMValueRef Fn);
 
 /**
+ * Create and add the globals mod/ref alias analysis pass to the given pass
+ * manager.
+ */
+void LLVMAddGlobalsAAWrapperPass(LLVMPassManagerRef PM);
+
+/**
  * @}
  */
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif

llvm/lib/Analysis/Analysis.cpp

 //===-- Analysis.cpp ------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm-c/Analysis.h"
 #include "llvm-c/Initialization.h"
+#include "llvm/Analysis/GlobalsModRef.h"
+#include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Verifier.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/PassRegistry.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cstring>
 
 using namespace llvm;
void LLVMViewFunctionCFG(LLVMValueRef Fn) {
   Function *F = unwrap<Function>(Fn);
   F->viewCFG();
 }
 
 void LLVMViewFunctionCFGOnly(LLVMValueRef Fn) {
   Function *F = unwrap<Function>(Fn);
   F->viewCFGOnly();
 }
+
+void LLVMAddGlobalsAAWrapperPass(LLVMPassManagerRef PM) {
+  unwrap(PM)->add(createGlobalsAAWrapperPass());
+}