Duncan P. N. Exon Smith 0294f639d2 IR: Drop metadata references more aggressively during teardown ... Sometimes teardown happens before the debug info graph is complete (e.g., when clang throws an error). In that case, `MDNode`s will still have RAUW, so deleting constants that the `MDNode`s point at will be relatively expensive -- it'll cause re-uniquing all up the chain (what I've been referring to as "teardown madness"). So, drop references *before* deleting constants. We need to drop a few more references now: the metadata side of the metadata/value bridges needs to be dropped off the cliff along with the rest of it (previously, the bridges were cleaned before we did anything with the `MDNode`s). There's no real functionality change here -- state before and after `LLVMContextImpl::~LLVMContextImpl()` is unchanged -- so no testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226044 91177308-0d34-0410-b5e6-96231b3b80d8		2015-01-14 21:58:17 +00:00
..
ADT	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
Analysis	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
AsmParser
Bitcode	AsmParser/Bitcode: Add support for MDLocation	2015-01-13 21:10:44 +00:00
CodeGen	Remove dead code for llvm.eh.selector in the old EH model	2015-01-14 18:49:39 +00:00
Config	[multilib] Add support to the autoconf build to substitute	2014-12-29 11:58:17 +00:00
DebugInfo	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
ExecutionEngine	[MCJIT] Unique-ptrify the RTDyldMemoryManager member of MCJIT. NFC.	2014-12-03 00:51:19 +00:00
IR	IR: Drop metadata references more aggressively during teardown	2015-01-14 21:58:17 +00:00
IRReader
LineEditor
Linker	Use the DiagnosticHandler to print diagnostics when reading bitcode.	2015-01-10 00:07:30 +00:00
LTO	Remove StringMap::GetOrCreateValue in favor of StringMap::insert	2014-11-19 05:49:42 +00:00
MC	Revert "Add r224985 back with two fixes."	2015-01-14 19:07:23 +00:00
Object	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
Option
ProfileData	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
Support	Add comment about a gotcha I ran across while touching this code.	2015-01-14 19:59:18 +00:00
TableGen	Make MultiClass::DefPrototypes own their Records to fix memory leaks.	2014-12-11 05:25:33 +00:00
Target	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
Transforms	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
CMakeLists.txt
InitializePasses.h	Revert "Insert random noops to increase security against ROP attacks (llvm)"	2015-01-14 05:24:33 +00:00
LinkAllIR.h
LinkAllPasses.h	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
module.modulemap	Update the modules build to match r223802.	2014-12-12 02:25:18 +00:00
module.modulemap.build
Pass.h
PassAnalysisSupport.h
PassInfo.h
PassManager.h
PassRegistry.h
PassSupport.h