From fdfea09dd7410d6ed7ad54df1ba3092bd0eecb92 Mon Sep 17 00:00:00 2001
From: Pierre Ducroquet <pinaraf@pinaraf.info>
Date: Wed, 24 Jan 2018 22:28:34 +0100
Subject: [PATCH] Allow building with LLVM 5.0

---
 src/backend/lib/llvmjit_wrap.cpp | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/backend/lib/llvmjit_wrap.cpp b/src/backend/lib/llvmjit_wrap.cpp
index b745aec4fe..7961148a85 100644
--- a/src/backend/lib/llvmjit_wrap.cpp
+++ b/src/backend/lib/llvmjit_wrap.cpp
@@ -29,7 +29,6 @@ extern "C"
 
 #include "llvm-c/Core.h"
 #include "llvm-c/BitReader.h"
-#include "llvm-c/DebugInfo.h"
 
 #include <fcntl.h>
 #include <sys/mman.h>
@@ -50,6 +49,7 @@ extern "C"
 #include "llvm/Analysis/ModuleSummaryAnalysis.h"
 #include "llvm/Bitcode/BitcodeReader.h"
 #include "llvm/IR/CallSite.h"
+#include "llvm/IR/DebugInfo.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/ModuleSummaryIndex.h"
 #include "llvm/Linker/IRMover.h"
@@ -218,6 +218,13 @@ llvm_inline(LLVMModuleRef M)
 	llvm_execute_inline_plan(mod, globalsToInline.get());
 }
 
+
+inline llvm::GlobalValueSummary *GlobalValueSummary__getBaseObject(llvm::GlobalValueSummary *gvs) {
+  if (auto *AS = llvm::dyn_cast<llvm::AliasSummary>(gvs))
+    return &AS->getAliasee();
+  return gvs;
+}
+
 /*
  * Build information necessary for inlining external function references in
  * mod.
@@ -282,7 +289,7 @@ llvm_build_inline_plan(llvm::Module *mod)
 			const llvm::Module *defMod;
 			llvm::Function *funcDef;
 
-			fs = llvm::cast<llvm::FunctionSummary>(gvs->getBaseObject());
+			fs = llvm::cast<llvm::FunctionSummary>(GlobalValueSummary__getBaseObject(gvs.get()));
 			elog(DEBUG2, "func %s might be in %s",
 				 funcName.data(),
 				 modPath.data());
@@ -476,7 +483,7 @@ load_module(llvm::StringRef Identifier)
 	 * code. Until that changes, not much point in wasting memory and cycles
 	 * on processing debuginfo.
 	 */
-	LLVMStripModuleDebugInfo(mod);
+	llvm::StripDebugInfo(*llvm::unwrap(mod));
 
 	return std::unique_ptr<llvm::Module>(llvm::unwrap(mod));
 }
-- 
2.15.1

