[PATCH] D49856: [COFF] clean up global resources after completion

[Andrew Kelley via Phabricator via llvm-commits]

andrewrk created this revision.
andrewrk added a reviewer: ruiu.
Herald added a subscriber: llvm-commits.

Previously, running lld::coff::link() twice in the same process would access stale pointers because of these global variables not being reset. After this patch, lld::coff::link() can be called any number of times, just like its ELF and MACH-O counterparts.


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D49856

Files:
  lld/COFF/Driver.cpp


Index: lld/COFF/Driver.cpp
===================================================================
--- lld/COFF/Driver.cpp
+++ lld/COFF/Driver.cpp
@@ -72,6 +72,9 @@
     exitLld(errorCount() ? 1 : 0);
 
   freeArena();
+  ObjFile::Instances.clear();
+  ImportFile::Instances.clear();
+  BitcodeFile::Instances.clear();
   return !errorCount();
 }
 


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