[llvm] r238418 - [AsmPrinter] Destroy allocated DIEAbbrevs on teardown.

[Benjamin Kramer]

Author: d0k
Date: Thu May 28 07:55:43 2015
New Revision: 238418

URL: http://llvm.org/viewvc/llvm-project?rev=238418&view=rev
Log:
[AsmPrinter] Destroy allocated DIEAbbrevs on teardown.

DIEAbbrev contains a SmallVector that can leak for overly large abbrevs. They
used to be owned by the DIE, but after the recent refactoring DWARFFile
allocates its own abbrevs.

Leak found by asan.

Modified:
    llvm/trunk/lib/CodeGen/AsmPrinter/DwarfFile.cpp

Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfFile.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfFile.cpp?rev=238418&r1=238417&r2=238418&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfFile.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfFile.cpp Thu May 28 07:55:43 2015
@@ -20,7 +20,10 @@ namespace llvm {
 DwarfFile::DwarfFile(AsmPrinter *AP, StringRef Pref, BumpPtrAllocator &DA)
     : Asm(AP), StrPool(DA, *Asm, Pref) {}
 
-DwarfFile::~DwarfFile() {}
+DwarfFile::~DwarfFile() {
+  for (DIEAbbrev *Abbrev : Abbreviations)
+    Abbrev->~DIEAbbrev();
+}
 
 // Define a unique number for the abbreviation.
 //