Chris Lattner 5095e3d1d1 Fix some nasty callgraph dangling pointer problems in ... argpromotion and structretpromote. Basically, when replacing a function, they used the 'changeFunction' api which changes the entry in the function map (and steals/reuses the callgraph node). This has some interesting effects: first, the problem is that it doesn't update the "callee" edges in any callees of the function in the call graph. Second, this covers for a major problem in all the CGSCC pass stuff, which is that it is completely broken when functions are deleted if they *don't* reuse a CGN. (there is a cute little fixme about this though :). This patch changes the protocol that CGSCC passes must obey: now the CGSCC pass manager copies the SCC and preincrements its iterator to avoid passes invalidating it. This allows CGSCC passes to mutate the current SCC. However multiple passes may be run on that SCC, so if passes do this, they are now required to *update* the SCC to be current when they return. Other less interesting parts of this patch are that it makes passes update the CG more directly, eliminates changeFunction, and requires clients of replaceCallSite to specify the new callee CGN if they are changing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80527 91177308-0d34-0410-b5e6-96231b3b80d8		2009-08-31 00:19:58 +00:00
..
ArgumentPromotion.cpp	Fix some nasty callgraph dangling pointer problems in	2009-08-31 00:19:58 +00:00
CMakeLists.txt
ConstantMerge.cpp	Use hasDefinitiveInitializer() instead of testing the same thing	2009-08-19 18:20:44 +00:00
DeadArgumentElimination.cpp	remove a few DOUTs here and there.	2009-08-23 06:35:02 +00:00
DeadTypeElimination.cpp
ExtractGV.cpp
FunctionAttrs.cpp	Fix some nasty callgraph dangling pointer problems in	2009-08-31 00:19:58 +00:00
GlobalDCE.cpp
GlobalOpt.cpp	eliminate the "Value" printing methods that print to a std::ostream.	2009-08-23 04:37:46 +00:00
IndMemRemoval.cpp
InlineAlways.cpp
Inliner.cpp	Fix some nasty callgraph dangling pointer problems in	2009-08-31 00:19:58 +00:00
InlineSimple.cpp	Use hasDefinitiveInitializer() instead of testing the same thing	2009-08-19 18:20:44 +00:00
Internalize.cpp	eliminate uses of cerr()	2009-08-23 07:05:07 +00:00
IPConstantPropagation.cpp
IPO.cpp
LoopExtractor.cpp	convert LoopInfo.h and GraphWriter.h to use raw_ostream	2009-08-23 07:19:13 +00:00
LowerSetJmp.cpp
Makefile
MergeFunctions.cpp	Rename Instruction::isIdenticalTo to Instruction::isIdenticalToWhenDefined,	2009-08-25 22:11:20 +00:00
PartialInlining.cpp
PartialSpecialization.cpp
PruneEH.cpp	Fix some nasty callgraph dangling pointer problems in	2009-08-31 00:19:58 +00:00
RaiseAllocations.cpp
StripDeadPrototypes.cpp
StripSymbols.cpp	Reapply 79977.	2009-08-28 23:24:31 +00:00
StructRetPromotion.cpp	Fix some nasty callgraph dangling pointer problems in	2009-08-31 00:19:58 +00:00