David Majnemer bf189bdcd7 [IR] Reformulate LLVM's EH funclet IR ... While we have successfully implemented a funclet-oriented EH scheme on top of LLVM IR, our scheme has some notable deficiencies: - catchendpad and cleanupendpad are necessary in the current design but they are difficult to explain to others, even to seasoned LLVM experts. - catchendpad and cleanupendpad are optimization barriers. They cannot be split and force all potentially throwing call-sites to be invokes. This has a noticable effect on the quality of our code generation. - catchpad, while similar in some aspects to invoke, is fairly awkward. It is unsplittable, starts a funclet, and has control flow to other funclets. - The nesting relationship between funclets is currently a property of control flow edges. Because of this, we are forced to carefully analyze the flow graph to see if there might potentially exist illegal nesting among funclets. While we have logic to clone funclets when they are illegally nested, it would be nicer if we had a representation which forbade them upfront. Let's clean this up a bit by doing the following: - Instead, make catchpad more like cleanuppad and landingpad: no control flow, just a bunch of simple operands; catchpad would be splittable. - Introduce catchswitch, a control flow instruction designed to model the constraints of funclet oriented EH. - Make funclet scoping explicit by having funclet instructions consume the token produced by the funclet which contains them. - Remove catchendpad and cleanupendpad. Their presence can be inferred implicitly using coloring information. N.B. The state numbering code for the CLR has been updated but the veracity of it's output cannot be spoken for. An expert should take a look to make sure the results are reasonable. Reviewers: rnk, JosephTremoulet, andrew.w.kaylor Differential Revision: http://reviews.llvm.org/D15139 llvm-svn: 255422		2015-12-12 05:38:55 +00:00
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Analysis	[IR] Reformulate LLVM's EH funclet IR	2015-12-12 05:38:55 +00:00
AsmParser	[IR] Reformulate LLVM's EH funclet IR	2015-12-12 05:38:55 +00:00
Bitcode	[IR] Reformulate LLVM's EH funclet IR	2015-12-12 05:38:55 +00:00
CodeGen	[IR] Reformulate LLVM's EH funclet IR	2015-12-12 05:38:55 +00:00
DebugInfo	[llvm-dwp] Retrieve the DWOID from the CU for the cu_index entry	2015-12-04 17:20:04 +00:00
ExecutionEngine	[Orc] Rename IndirectStubsManagerBase to IndirectStubsManager.	2015-12-06 19:44:45 +00:00
Fuzzer	[LibFuzzer] Introducing FUZZER_FLAG_UNSIGNED and using it for seeding.	2015-12-10 20:41:53 +00:00
IR	[IR] Reformulate LLVM's EH funclet IR	2015-12-12 05:38:55 +00:00
IRReader
LibDriver	[Option] Use an ArrayRef to store the Option Infos in OptTable. NFC	2015-10-21 16:30:42 +00:00
LineEditor
Linker	Fix another case where the linkage was not set.	2015-12-10 18:44:26 +00:00
LTO	MSVC complains about this being ambiguous.	2015-12-04 22:26:21 +00:00
MC	Replace uint16_t with the MCPhysReg typedef in many places. A lot of physical register arrays already use this typedef.	2015-12-05 07:13:35 +00:00
Object	Use make_range to reduce mentions of iterator type. NFC	2015-12-06 05:08:07 +00:00
Option	[Option] Use an ArrayRef to store the Option Infos in OptTable. NFC	2015-10-21 16:30:42 +00:00
Passes	[PM] Port StripDeadPrototypes to the new pass manager	2015-10-30 23:28:12 +00:00
ProfileData	[PGO] Revert r255365: solution incomplete, not handling lambda yet	2015-12-11 20:23:22 +00:00
Support	Avoid buffered reads of /dev/urandom	2015-12-11 22:52:32 +00:00
TableGen	[TblGen] ArrayRefize TGParser. No functional change intended.	2015-10-24 12:46:45 +00:00
Target	[IR] Reformulate LLVM's EH funclet IR	2015-12-12 05:38:55 +00:00
Transforms	[IR] Reformulate LLVM's EH funclet IR	2015-12-12 05:38:55 +00:00
CMakeLists.txt
LLVMBuild.txt	Wrap some long lines in LLVMBuild files. NFC	2015-06-12 18:44:57 +00:00
Makefile