From 9f91126ce7747f7a9f9755a98868a0d34c9d75f9 Mon Sep 17 00:00:00 2001
From: Yonghong Song <yhs@fb.com>
Date: Sat, 26 Nov 2022 17:41:33 -0800
Subject: [PATCH] Fix a llvm compilation error
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With latest llvm16, I got the following compilation error:
  /.../src/cc/bpf_module.cc: In member function ‘void ebpf::BPFModule::dump_ir(llvm::Module&)’:
  /.../src/cc/bpf_module.cc:259:15: error: ‘PrintModulePass’ was not declared in this scope
     MPM.addPass(PrintModulePass(errs()));
                 ^~~~~~~~~~~~~~~
  ...

The error is due to the llvm patch https://reviews.llvm.org/D138081.
Fix the issue by adjust corresponding header file locaiton
as in the above llvm patch.

Signed-off-by: Yonghong Song <yhs@fb.com>
---
 src/cc/bpf_module.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/cc/bpf_module.cc b/src/cc/bpf_module.cc
index 97f4518c..f48df7af 100644
--- a/src/cc/bpf_module.cc
+++ b/src/cc/bpf_module.cc
@@ -25,7 +25,11 @@
 
 #include <llvm/ExecutionEngine/MCJIT.h>
 #include <llvm/ExecutionEngine/SectionMemoryManager.h>
+#if LLVM_MAJOR_VERSION >= 16
+#include <llvm/IRPrinter/IRPrintingPasses.h>
+#else
 #include <llvm/IR/IRPrintingPasses.h>
+#endif
 #include <llvm/IR/LLVMContext.h>
 #include <llvm/IR/Module.h>
 
-- 
2.34.1