[PATCH] D12433: [WinEH] Add cleanupendpad instruction

[Joseph Tremoulet via llvm-commits]

JosephTremoulet created this revision.
JosephTremoulet added reviewers: rnk, majnemer, andrew.w.kaylor.
JosephTremoulet added a subscriber: llvm-commits.

Add a `cleanupendpad` instruction, used to mark exceptional exits out of
cleanups (for languages/targets that can abort a cleanup with another
exception).  The `cleanupendpad` instruction is similar to the `catchendpad`
instruction in that it is an EH pad which is the target of unwind edges in
the handler and which itself has an unwind edge to the next EH action.
The `cleanupendpad` instruction, similar to `cleanupret` has a `cleanuppad`
argument indicating which cleanup it exits.  The unwind successors of a
`cleanuppad`'s `cleanupendpad`s must agree with each other and with its
`cleanupret`s.

Update WinEHPrepare (and docs/tests) to accomodate `cleanupendpad`.

http://reviews.llvm.org/D12433

Files:
  docs/ExceptionHandling.rst
  docs/LangRef.rst
  include/llvm-c/Core.h
  include/llvm/Bitcode/LLVMBitCodes.h
  include/llvm/IR/IRBuilder.h
  include/llvm/IR/InstVisitor.h
  include/llvm/IR/InstrTypes.h
  include/llvm/IR/Instruction.def
  include/llvm/IR/Instruction.h
  include/llvm/IR/Instructions.h
  lib/Analysis/ValueTracking.cpp
  lib/AsmParser/LLLexer.cpp
  lib/AsmParser/LLParser.cpp
  lib/AsmParser/LLParser.h
  lib/AsmParser/LLToken.h
  lib/Bitcode/Reader/BitcodeReader.cpp
  lib/Bitcode/Writer/BitcodeWriter.cpp
  lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
  lib/CodeGen/TargetLoweringBase.cpp
  lib/CodeGen/WinEHPrepare.cpp
  lib/IR/AsmWriter.cpp
  lib/IR/Instruction.cpp
  lib/IR/Instructions.cpp
  lib/IR/Verifier.cpp
  lib/Transforms/Instrumentation/MemorySanitizer.cpp
  lib/Transforms/Utils/InlineFunction.cpp
  test/Assembler/invalid-OperatorConstraint.ll
  test/Feature/exception.ll
  tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp

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