From 825c74c241504c261b9f7fc87fbb0cf777b7e2fc Mon Sep 17 00:00:00 2001
From: Philip Reames <listmail@philipreames.com>
Date: Wed, 22 Aug 2018 03:32:52 +0000
Subject: [AST] Move a function definition into the cpp [NFC]

llvm-svn: 340382
---
 llvm/lib/Analysis/AliasSetTracker.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'llvm/lib/Analysis/AliasSetTracker.cpp')

diff --git a/llvm/lib/Analysis/AliasSetTracker.cpp b/llvm/lib/Analysis/AliasSetTracker.cpp
index dc6ecd58b7b..66fdf7f22f0 100644
--- a/llvm/lib/Analysis/AliasSetTracker.cpp
+++ b/llvm/lib/Analysis/AliasSetTracker.cpp
@@ -252,6 +252,18 @@ bool AliasSet::aliasesUnknownInst(const Instruction *Inst,
   return false;
 }
 
+Instruction* AliasSet::getUniqueInstruction() {
+  if (size() != 0)
+    // Can't track source of pointer, might be many instruction
+    return nullptr;
+  if (AliasAny)
+    // May have collapses alias set
+    return nullptr;
+ if (1 != UnknownInsts.size())
+    return nullptr;
+  return cast<Instruction>(UnknownInsts[0]);
+}
+
 void AliasSetTracker::clear() {
   // Delete all the PointerRec entries.
   for (PointerMapType::iterator I = PointerMap.begin(), E = PointerMap.end();
-- 
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