[weak vtables] Remove a bunch of weak vtables

This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195064 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 26 insertions, 0 deletions

diff --git a/lib/Target/NVPTX/NVPTXISelLowering.cpp b/lib/Target/NVPTX/NVPTXISelLowering.cpp
index 7ff43bf231..6a8be753c8 100644
--- a/lib/Target/NVPTX/NVPTXISelLowering.cpp
+++ b/lib/Target/NVPTX/NVPTXISelLowering.cpp
@@ -2288,3 +2288,29 @@ void NVPTXTargetLowering::ReplaceNodeResults(
     return;
   }
 }
+
+// Pin NVPTXSection's and NVPTXTargetObjectFile's vtables to this file.
+void NVPTXSection::anchor() {}
+
+NVPTXTargetObjectFile::~NVPTXTargetObjectFile() {
+  delete TextSection;
+  delete DataSection;
+  delete BSSSection;
+  delete ReadOnlySection;
+
+  delete StaticCtorSection;
+  delete StaticDtorSection;
+  delete LSDASection;
+  delete EHFrameSection;
+  delete DwarfAbbrevSection;
+  delete DwarfInfoSection;
+  delete DwarfLineSection;
+  delete DwarfFrameSection;
+  delete DwarfPubTypesSection;
+  delete DwarfDebugInlineSection;
+  delete DwarfStrSection;
+  delete DwarfLocSection;
+  delete DwarfARangesSection;
+  delete DwarfRangesSection;
+  delete DwarfMacroInfoSection;
+}