[llvm] r236686 - IR: Initialize DerefOrNullBytes in the AttrBuilder constructors

[Justin Bogner]

Author: bogner
Date: Wed May  6 19:56:34 2015
New Revision: 236686

URL: http://llvm.org/viewvc/llvm-project?rev=236686&view=rev
Log:
IR: Initialize DerefOrNullBytes in the AttrBuilder constructors

MSAN pointed out that this value is used uninitialized:

    http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/3678

Modified:
    llvm/trunk/include/llvm/IR/Attributes.h

Modified: llvm/trunk/include/llvm/IR/Attributes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/Attributes.h?rev=236686&r1=236685&r2=236686&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/Attributes.h (original)
+++ llvm/trunk/include/llvm/IR/Attributes.h Wed May  6 19:56:34 2015
@@ -436,13 +436,17 @@ class AttrBuilder {
   uint64_t DerefBytes;
   uint64_t DerefOrNullBytes;
 public:
-  AttrBuilder() : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0) {}
+  AttrBuilder()
+      : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0),
+        DerefOrNullBytes(0) {}
   explicit AttrBuilder(uint64_t Val)
-    : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0) {
+      : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0),
+        DerefOrNullBytes(0) {
     addRawValue(Val);
   }
   AttrBuilder(const Attribute &A)
-    : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0) {
+      : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0),
+        DerefOrNullBytes(0) {
     addAttribute(A);
   }
   AttrBuilder(AttributeSet AS, unsigned Idx);