Chandler Carruth f8c8a9cbb4 Teach the function cloner (and thus the inliner) to simplify PHINodes ... aggressively. There are lots of dire warnings about this being expensive that seem to predate switching to the TrackingVH-based value remapper that is automatically updated on RAUW. This makes it easy to not just prune single-entry PHIs, but to fully simplify PHIs, and to recursively simplify the newly inlined code to propagate PHINode simplifications. This introduces a bit of a thorny problem though. We may end up simplifying a branch condition to a constant when we fold PHINodes, and we would like to nuke any dead blocks resulting from this so that time isn't wasted continually analyzing them, but this isn't easy. Deleting basic blocks *after* they are fully cloned and mapped into the new function currently requires manually updating the value map. The last piece of the simplification-during-inlining puzzle will require either switching to WeakVH mappings or some other piece of refactoring. I've left a FIXME in the testcase about this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153410 91177308-0d34-0410-b5e6-96231b3b80d8		2012-03-25 10:34:54 +00:00
..
AddrModeMatcher.cpp	Add a little heuristic to Value::isUsedInBasicBlock to speed it up for small basic blocks.	2011-12-05 17:23:27 +00:00
BasicBlockUtils.cpp	Remove unreachable code. (replace with llvm_unreachable to help GCC where necessary)	2012-01-17 04:43:56 +00:00
BreakCriticalEdges.cpp	SplitBlockPredecessors uses ArrayRef instead of Data and Size.	2011-12-09 21:19:53 +00:00
BuildLibCalls.cpp	Add support for custom names for library functions in TargetLibraryInfo. Add a custom name for fwrite and fputs on x86-32 OSX. Make SimplifyLibCalls honor the custom	2011-11-17 01:27:36 +00:00
CloneFunction.cpp	Teach the function cloner (and thus the inliner) to simplify PHINodes	2012-03-25 10:34:54 +00:00
CloneModule.cpp	Fix llvm::CloneModule to correctly clone globals. Patch per bug report by Simon Moll on llvmdev.	2011-08-15 21:05:06 +00:00
CMakeLists.txt	Remove the basic inliner. This was added in 2007, and hasn't really	2012-03-15 01:37:56 +00:00
CmpInstAnalysis.cpp	Convert assert(0) to llvm_unreachable	2012-02-07 05:05:23 +00:00
CodeExtractor.cpp	Taken into account Duncan's comments for r149481 dated by 2nd Feb 2012:	2012-03-08 07:06:20 +00:00
DemoteRegToStack.cpp	Remove redundant comment. Use a more efficient datatype.	2012-02-17 02:12:54 +00:00
InlineFunction.cpp	Add support for disabling llvm.lifetime intrinsics in the AlwaysInliner. These	2012-02-25 02:56:01 +00:00
InstructionNamer.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
LCSSA.cpp	There is no need to force DebugLoc on a PHI at this point.	2011-05-16 22:05:03 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
Local.cpp	Add an asserting ValueHandle to the block simplification code which will	2012-03-25 03:29:25 +00:00
LoopSimplify.cpp	LoopSimplify bug fix. Handle indirect loop back edges.	2012-03-20 21:24:52 +00:00
LoopUnroll.cpp	Avoid a confusing assert for silly options: -unroll-runtime -unroll-count=1.	2011-12-16 02:03:48 +00:00
LoopUnrollRuntime.cpp	- Use getExitingBlock instead of getExitingBlocks.	2011-12-18 21:52:30 +00:00
LowerExpectIntrinsic.cpp	llvm::SwitchInst	2012-03-11 06:09:17 +00:00
LowerInvoke.cpp	[unwind removal] We no longer have 'unwind' instructions being generated, so	2012-02-06 21:16:41 +00:00
LowerSwitch.cpp	llvm::SwitchInst	2012-03-11 06:09:17 +00:00
Makefile	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00
Mem2Reg.cpp	Remove outdated references to dominance frontiers.	2011-01-18 03:53:26 +00:00
ModuleUtils.cpp	[asan] fix a bug (issue 19) where dlclose and the following mmap caused a false positive. compiler part.	2011-12-15 21:59:03 +00:00
PromoteMemoryToRegister.cpp	Switch mem2reg to use the new hashing infrastructure.	2012-03-05 11:29:56 +00:00
SimplifyCFG.cpp	llvm::SwitchInst	2012-03-11 06:09:17 +00:00
SimplifyIndVar.cpp	Remove unused simplifyIVUsers	2012-03-22 17:47:30 +00:00
SimplifyInstructions.cpp	Propagate TargetLibraryInfo throughout ConstantFolding.cpp and	2011-12-01 03:08:23 +00:00
SSAUpdater.cpp	Make headers standalone, move a virtual method out of line.	2011-11-14 17:22:45 +00:00
UnifyFunctionExitNodes.cpp	[unwind removal] We no longer have 'unwind' instructions being generated, so	2012-02-06 21:16:41 +00:00
Utils.cpp	Add a new convenience pass for testing InstructionSimplify. Previously	2010-12-20 20:54:37 +00:00
ValueMapper.cpp	We need to map DebugLoc. It leads to Fuction * (through subprogram entry node) which should be appropriately mapped.	2011-08-04 20:02:18 +00:00