Chris Lattner 0b14487591 * Add a new commandline argument to control the "global roots hack". Default ... it to be off. If it looks like it's completely unnecessary after testing, I will remove it completely (which is the hope). * Callers of the DSNode "copy ctor" can not choose to not copy links. * Make node collapsing not create a garbage node in some cases, avoiding a memory allocation, and a subsequent DNE. * When merging types, allow two functions of different types to be merged without collapsing. * Use DSNodeHandle::isNull more often instead of DSNodeHandle::getNode() == 0, as it is much more efficient. *** Implement the new, more efficient reachability cloner class In addition to only cloning nodes that are reachable from interesting roots, this also fixes the huge inefficiency we had where we cloned lots of nodes, only to merge them away immediately after they were cloned. Now we only actually allocate a node if there isn't one to merge it into. * Eliminate the now-obsolete cloneReachable* and clonePartiallyInto methods * Rewrite updateFromGlobalsGraph to use the reachability cloner * Rewrite mergeInGraph to use the reachability cloner * Disable the scalar map scanning code in removeTriviallyDeadNodes. In large SCC's, this is extremely expensive. We need a better data structure for the scalar map, because we really want to scan the unique node handles, not ALL of the scalars. * Remove the incorrect SANER_CODE_FOR_CHECKING_IF_ALL_REFERRERS_ARE_FROM_SCALARMAP code. * Move the code for eliminating integer nodes from the trivially dead eliminator to the dead node eliminator. * removeDeadNodes no longer uses removeTriviallyDeadNodes, as it contains a superset of the node removal power. * Only futz around with the globals graph in removeDeadNodes if it is modified git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10987 91177308-0d34-0410-b5e6-96231b3b80d8		2004-01-27 22:03:40 +00:00
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Analysis	* Add a new commandline argument to control the "global roots hack". Default	2004-01-27 22:03:40 +00:00
Archive	* finegrainify namespacification of ArchiveReader.cpp	2004-01-10 19:00:15 +00:00
AsmParser	Don't use ConstantExpr::getShift anymore	2004-01-12 19:08:43 +00:00
Bytecode	Implement ModuleProvider::materializeModule() by only materializing functions	2004-01-21 22:55:34 +00:00
CodeGen	Fix failing test cases with joined live intervals. It turns out that	2004-01-23 13:37:51 +00:00
Debugger	"fix" a nasty race condition	2004-01-14 21:18:03 +00:00
ExecutionEngine	Don't pass anything to the IntrinsicLowering class that is not_intrinsic,	2004-01-14 06:02:53 +00:00
Linker	Fixes for PR214. Use the SHLIBEXT variable instead of hardcoding .so into	2004-01-26 20:59:41 +00:00
Support	Fixes for PR214. Use the SHLIBEXT variable instead of hardcoding .so into	2004-01-26 20:59:41 +00:00
Target	Add the JITInfo object, accessor & initializer.	2004-01-23 06:39:30 +00:00
Transforms	Fix InstCombine/2004-01-13-InstCombineInvokePHI.ll, which also fixes lots	2004-01-14 06:06:08 +00:00
VMCore	Fix a problem brian ran into with the bytecode reader asserting. It turns	2004-01-23 00:55:21 +00:00
Makefile	Add new dir	2004-01-05 05:25:59 +00:00