From: Fangrui Song <maskray@google.com>
Date: Sat, 30 May 2020 02:48:33 +0000 (-0700)
Subject: [ValueLattice] Fix uninitialized-value after D79036
X-Git-Tag: llvmorg-12-init~4621
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=034a7b6604067b0ccb36c761a5782456b76c447e;p=platform%2Fupstream%2Fllvm.git

[ValueLattice] Fix uninitialized-value after D79036

Many check-clang-codegen tests failed.
---

diff --git a/llvm/include/llvm/Analysis/ValueLattice.h b/llvm/include/llvm/Analysis/ValueLattice.h
index 00a230f..bf5bab9 100644
--- a/llvm/include/llvm/Analysis/ValueLattice.h
+++ b/llvm/include/llvm/Analysis/ValueLattice.h
@@ -142,11 +142,12 @@ public:
   };
 
   // ConstVal and Range are initialized on-demand.
-  ValueLatticeElement() : Tag(unknown) {}
+  ValueLatticeElement() : Tag(unknown), NumRangeExtensions(0) {}
 
   ~ValueLatticeElement() { destroy(); }
 
-  ValueLatticeElement(const ValueLatticeElement &Other) : Tag(Other.Tag) {
+  ValueLatticeElement(const ValueLatticeElement &Other)
+      : Tag(Other.Tag), NumRangeExtensions(0) {
     switch (Other.Tag) {
     case constantrange:
     case constantrange_including_undef:
@@ -164,7 +165,8 @@ public:
     }
   }
 
-  ValueLatticeElement(ValueLatticeElement &&Other) : Tag(Other.Tag) {
+  ValueLatticeElement(ValueLatticeElement &&Other)
+      : Tag(Other.Tag), NumRangeExtensions(0) {
     switch (Other.Tag) {
     case constantrange:
     case constantrange_including_undef: