From ed141bab630026a6109acc89556dd8ff3eaee504 Mon Sep 17 00:00:00 2001
From: "Ivan A. Kosarev" <ikosarev@accesssoftek.com>
Date: Tue, 17 Oct 2017 09:12:13 +0000
Subject: [CodeGen] EmitPointerWithAlignment() to generate TBAA info along with
 LValue base info

Differential Revision: https://reviews.llvm.org/D38796

llvm-svn: 315984
---
 clang/lib/CodeGen/CodeGenTBAA.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'clang/lib/CodeGen/CodeGenTBAA.cpp')

diff --git a/clang/lib/CodeGen/CodeGenTBAA.cpp b/clang/lib/CodeGen/CodeGenTBAA.cpp
index 49a49c1f5d7..6f9747e2f0b 100644
--- a/clang/lib/CodeGen/CodeGenTBAA.cpp
+++ b/clang/lib/CodeGen/CodeGenTBAA.cpp
@@ -309,3 +309,11 @@ llvm::MDNode *CodeGenTBAA::getAccessTagInfo(TBAAAccessInfo Info) {
 TBAAAccessInfo CodeGenTBAA::getMayAliasAccessInfo() {
   return TBAAAccessInfo(getChar());
 }
+
+TBAAAccessInfo CodeGenTBAA::mergeTBAAInfoForCast(TBAAAccessInfo SourceInfo,
+                                                 TBAAAccessInfo TargetInfo) {
+  TBAAAccessInfo MayAliasInfo = getMayAliasAccessInfo();
+  if (SourceInfo == MayAliasInfo || TargetInfo == MayAliasInfo)
+    return MayAliasInfo;
+  return TargetInfo;
+}
-- 
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