Chandler Carruth c49e7e6aee [PM] Add the preservation system to the new pass manager. ... This adds a new set-like type which represents a set of preserved analysis passes. The set is managed via the opaque PassT::ID() void*s. The expected convenience templates for interacting with specific passes are provided. It also supports a symbolic "all" state which is represented by an invalid pointer in the set. This state is nicely saturating as it comes up often. Finally, it supports intersection which is used when finding the set of preserved passes after N different transforms. The pass API is then changed to return the preserved set rather than a bool. This is much more self-documenting than the previous system. Returning "none" is a conservatively correct solution just like returning "true" from todays passes and not marking any passes as preserved. Passes can also be dynamically preserved or not throughout the run of the pass, and whatever gets returned is the binding state. Finally, preserving "all" the passes is allowed for no-op transforms that simply can't harm such things. Finally, the analysis managers are changed to instead of blindly invalidating all of the analyses, invalidate those which were not preserved. This should rig up all of the basic preservation functionality. This also correctly combines the preservation moving up from one IR-layer to the another and the preservation aggregation across N pass runs. Still to go is incrementally correct invalidation and preservation across IR layers incrementally during N pass runs. That will wait until we have a device for even exposing analyses across IR layers. While the core of this change is obvious, I'm not happy with the current testing, so will improve it to cover at least some of the invalidation that I can test easily in a subsequent commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195241 91177308-0d34-0410-b5e6-96231b3b80d8		2013-11-20 11:31:50 +00:00
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Analysis
AsmParser
Bitcode
CodeGen	Remove polymorphic destruction for DIE. DIEBlocks are owned elsewhere	2013-11-20 00:54:31 +00:00
DebugInfo
ExecutionEngine
IR	[PM] Add the preservation system to the new pass manager.	2013-11-20 11:31:50 +00:00
IRReader
Linker
LTO
MC
Object
Option
Support	Give SmallPtrSet move semantics when we have R-value references.	2013-11-20 11:14:33 +00:00
TableGen
Target	X86ISelLowering.cpp: Mark a variable VT as LLVM_ATTRIBUTE_UNUSED. [-Wunused-variable]	2013-11-20 10:55:22 +00:00
Transforms	llvm-cov: Added file checksum to gcno and gcda files.	2013-11-20 04:15:05 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile