Chandler Carruth 72105b1195 [LCG] Add the first round of mutation support to the lazy call graph. ... This implements the core functionality necessary to remove an edge from the call graph and correctly update both the basic graph and the SCC structure. As part of that it has to run a tiny (in number of nodes) Tarjan-style DFS walk of an SCC being mutated to compute newly formed SCCs, etc. This is *very rough* and a WIP. I have a bunch of FIXMEs for code cleanup that will reduce the boilerplate in this change substantially. I also have a bunch of simplifications to various parts of both algorithms that I want to make, but first I'd like to have a more holistic picture. Ideally, I'd also like more testing. I'll probably add quite a few more unit tests as I go here to cover the various different aspects and corner cases of removing edges from the graph. Still, this is, so far, successfully updating the SCC graph in-place without disrupting the identity established for the existing SCCs even when we do challenging things like delete the critical edge that made an SCC cycle at all and have to reform things as a tree of smaller SCCs. Getting this to work is really critical for the new pass manager as it is going to associate significant state with the SCC instance and needs it to be stable. That is also the motivation behind the return of the newly formed SCCs. Eventually, I'll wire this all the way up to the public API so that the pass manager can use it to correctly re-enqueue newly formed SCCs into a fresh postorder traversal. llvm-svn: 206968		2014-04-23 11:03:03 +00:00
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Analysis	[LCG] Add the first round of mutation support to the lazy call graph.	2014-04-23 11:03:03 +00:00
AsmParser	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-16 04:21:27 +00:00
Bitcode	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 06:32:26 +00:00
CodeGen	Requisite reformatting for previous commit.	2014-04-22 23:09:36 +00:00
DebugInfo	[Modules] Make Support/Debug.h modular. This requires it to not change	2014-04-21 22:55:11 +00:00
ExecutionEngine	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 03:04:17 +00:00
IR	Fix DataLayout::operator==().	2014-04-22 17:47:03 +00:00
IRReader	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 06:32:26 +00:00
LineEditor	[CMake] Use LINK_LIBS instead of target_link_libraries().	2014-02-26 06:41:29 +00:00
Linker	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 06:32:26 +00:00
LTO	Fix the assembler to print a better relocatable expression error	2014-04-22 17:27:29 +00:00
MC	Integrated assbemler, macros: added 'vararg' argument qualifier support.	2014-04-23 06:56:28 +00:00
Object	Convert getFileOffset to getOffset and move it to its only user.	2014-04-21 13:45:32 +00:00
Option	Protect the ArgList dtor	2014-04-20 23:59:00 +00:00
ProfileData	ProfileData: Remove an extra semicolon	2014-04-19 23:42:50 +00:00
Support	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 03:07:47 +00:00
TableGen	[C++11] Make use of 'nullptr' in TableGen library.	2014-04-09 04:50:04 +00:00
Target	[ARM64] Fix formatting.	2014-04-23 10:50:32 +00:00
Transforms	[LV] Statistics numbers for LoopVectorize introduced: a number of analyzed loops & a number of vectorized loops.	2014-04-23 08:40:37 +00:00
CMakeLists.txt	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00
LLVMBuild.txt	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00
Makefile	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00