Chandler Carruth 36b699f2b1 [C++11] Add range based accessors for the Use-Def chain of a Value. ... This requires a number of steps. 1) Move value_use_iterator into the Value class as an implementation detail 2) Change it to actually be a *Use* iterator rather than a *User* iterator. 3) Add an adaptor which is a User iterator that always looks through the Use to the User. 4) Wrap these in Value::use_iterator and Value::user_iterator typedefs. 5) Add the range adaptors as Value::uses() and Value::users(). 6) Update *all* of the callers to correctly distinguish between whether they wanted a use_iterator (and to explicitly dig out the User when needed), or a user_iterator which makes the Use itself totally opaque. Because #6 requires churning essentially everything that walked the Use-Def chains, I went ahead and added all of the range adaptors and switched them to range-based loops where appropriate. Also because the renaming requires at least churning every line of code, it didn't make any sense to split these up into multiple commits -- all of which would touch all of the same lies of code. The result is still not quite optimal. The Value::use_iterator is a nice regular iterator, but Value::user_iterator is an iterator over User*s rather than over the User objects themselves. As a consequence, it fits a bit awkwardly into the range-based world and it has the weird extra-dereferencing 'operator->' that so many of our iterators have. I think this could be fixed by providing something which transforms a range of T&s into a range of T*s, but that *can* be separated into another patch, and it isn't yet 100% clear whether this is the right move. However, this change gets us most of the benefit and cleans up a substantial amount of code around Use and User. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203364 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-09 03:16:01 +00:00
..
InstPrinter
MCTargetDesc
TargetInfo
CMakeLists.txt
Hexagon.h
Hexagon.td
HexagonAsmPrinter.cpp
HexagonAsmPrinter.h
HexagonCallingConv.td
HexagonCallingConvLower.cpp
HexagonCallingConvLower.h
HexagonCFGOptimizer.cpp
HexagonCopyToCombine.cpp	[C++11] Replace llvm::next and llvm::prior with std::next and std::prev.	2014-03-02 12:27:27 +00:00
HexagonExpandPredSpillCode.cpp
HexagonFixupHwLoops.cpp
HexagonFrameLowering.cpp	[C++11] Replace llvm::next and llvm::prior with std::next and std::prev.	2014-03-02 12:27:27 +00:00
HexagonFrameLowering.h
HexagonHardwareLoops.cpp	[C++11] Replace llvm::next and llvm::prior with std::next and std::prev.	2014-03-02 12:27:27 +00:00
HexagonInstrFormats.td
HexagonInstrFormatsV4.td
HexagonInstrInfo.cpp	Replace PROLOG_LABEL with a new CFI_INSTRUCTION.	2014-03-07 06:08:31 +00:00
HexagonInstrInfo.h
HexagonInstrInfo.td
HexagonInstrInfoV3.td
HexagonInstrInfoV4.td
HexagonInstrInfoV5.td
HexagonIntrinsics.td
HexagonIntrinsicsDerived.td
HexagonIntrinsicsV3.td
HexagonIntrinsicsV4.td
HexagonIntrinsicsV5.td
HexagonISelDAGToDAG.cpp
HexagonISelLowering.cpp
HexagonISelLowering.h
HexagonMachineFunctionInfo.cpp
HexagonMachineFunctionInfo.h
HexagonMachineScheduler.cpp	Replace PROLOG_LABEL with a new CFI_INSTRUCTION.	2014-03-07 06:08:31 +00:00
HexagonMachineScheduler.h
HexagonMCInstLower.cpp
HexagonNewValueJump.cpp
HexagonOperands.td
HexagonPeephole.cpp
HexagonRegisterInfo.cpp
HexagonRegisterInfo.h
HexagonRegisterInfo.td
HexagonRemoveSZExtArgs.cpp	[C++11] Add range based accessors for the Use-Def chain of a Value.	2014-03-09 03:16:01 +00:00
HexagonSchedule.td
HexagonScheduleV4.td
HexagonSelectCCInfo.td
HexagonSelectionDAGInfo.cpp
HexagonSelectionDAGInfo.h
HexagonSplitConst32AndConst64.cpp
HexagonSplitTFRCondSets.cpp
HexagonSubtarget.cpp
HexagonSubtarget.h
HexagonTargetMachine.cpp
HexagonTargetMachine.h
HexagonTargetObjectFile.cpp
HexagonTargetObjectFile.h
HexagonVarargsCallingConvention.h
HexagonVLIWPacketizer.cpp	[C++11] Replace llvm::next and llvm::prior with std::next and std::prev.	2014-03-02 12:27:27 +00:00
LLVMBuild.txt
Makefile