From: Caroline Tice <cmtice@google.com>
Date: Mon, 9 Jan 2023 23:38:01 +0000 (-0800)
Subject: [AAUnderlyingObjects] Initialize an uninitialized boolean.
X-Git-Tag: upstream/17.0.6~21632
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2700d0d13ac28895b7271f81895ef60a7a5ebab6;p=platform%2Fupstream%2Fllvm.git

[AAUnderlyingObjects] Initialize an uninitialized boolean.

Recent commit introducing AA for getting underluying objects of a
pointer created an uninitialized boolean, which causes tests to fail
when built unter asan/ubsan. This initialized that variable.
---

diff --git a/llvm/lib/Transforms/IPO/AttributorAttributes.cpp b/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
index 9c67a001..00c1c3e 100644
--- a/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
+++ b/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
@@ -11228,7 +11228,7 @@ struct AAUnderlyingObjectsImpl
 
     auto DoUpdate = [&](SmallSetVector<Value *, 8> &UnderlyingObjects,
                         AA::ValueScope Scope) {
-      bool UsedAssumedInformation;
+      bool UsedAssumedInformation = false;
       SmallPtrSet<Value *, 8> SeenObjects;
       SmallVector<AA::ValueAndContext> Values;