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2017-12-15MachineFunction: Return reference from getFunction(); NFCMatthias Braun
The Function can never be nullptr so we can return a reference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320884 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-04[CodeGen] Unify MBB reference format in both MIR and debug outputFrancis Visoiu Mistrih
As part of the unification of the debug format and the MIR format, print MBB references as '%bb.5'. The MIR printer prints the IR name of a MBB only for block definitions. * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g' * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g' * find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g' * grep -nr 'BB#' and fix Differential Revision: https://reviews.llvm.org/D40422 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319665 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-17Fix a bunch more layering of CodeGen headers that are in TargetDavid Blaikie
All these headers already depend on CodeGen headers so moving them into CodeGen fixes the layering (since CodeGen depends on Target, not the other way around). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318490 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-15Add backend name to Target to enable runtime info to be fed back into TableGenDaniel Sanders
Summary: Make it possible to feed runtime information back to tablegen to enable profile-guided tablegen-eration, detection of untested tablegen definitions, etc. Being a cross-compiler by nature, LLVM will potentially collect data for multiple architectures (e.g. when running 'ninja check'). We therefore need a way for TableGen to figure out what data applies to the backend it is generating at the time. This patch achieves that by including the name of the 'def X : Target ...' for the backend in the TargetRegistry. Reviewers: qcolombet Reviewed By: qcolombet Subscribers: jholewinski, arsenm, jyknight, aditya_nandakumar, sdardis, nemanjai, ab, nhaehnle, t.p.northover, javed.absar, qcolombet, llvm-commits, fedor.sergeev Differential Revision: https://reviews.llvm.org/D39742 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318352 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08Target/TargetInstrInfo.h -> CodeGen/TargetInstrInfo.h to match layeringDavid Blaikie
This header includes CodeGen headers, and is not, itself, included by any Target headers, so move it into CodeGen to match the layering of its implementation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317647 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-03Move TargetFrameLowering.h to CodeGen where it's implementedDavid Blaikie
This header already includes a CodeGen header and is implemented in lib/CodeGen, so move the header there to match. This fixes a link error with modular codegeneration builds - where a header and its implementation are circularly dependent and so need to be in the same library, not split between two like this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317379 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-15Reverting r315590; it did not include changes for llvm-tblgen, which is ↵Aaron Ballman
causing link errors for several people. Error LNK2019 unresolved external symbol "public: void __cdecl `anonymous namespace'::MatchableInfo::dump(void)const " (?dump@MatchableInfo@?A0xf4f1c304@@QEBAXXZ) referenced in function "public: void __cdecl `anonymous namespace'::AsmMatcherEmitter::run(class llvm::raw_ostream &)" (?run@AsmMatcherEmitter@?A0xf4f1c304@@QEAAXAEAVraw_ostream@llvm@@@Z) llvm-tblgen D:\llvm\2017\utils\TableGen\AsmMatcherEmitter.obj 1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315854 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12Revert "TargetMachine: Merge TargetMachine and LLVMTargetMachine"Matthias Braun
Reverting to investigate layering effects of MCJIT not linking libCodeGen but using TargetMachine::getNameWithPrefix() breaking the lldb bots. This reverts commit r315633. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315637 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12TargetMachine: Merge TargetMachine and LLVMTargetMachineMatthias Braun
Merge LLVMTargetMachine into TargetMachine. - There is no in-tree target anymore that just implements TargetMachine but not LLVMTargetMachine. - It should still be possible to stub out all the various functions in case a target does not want to use lib/CodeGen - This simplifies the code and avoids methods ending up in the wrong interface. Differential Revision: https://reviews.llvm.org/D38489 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315633 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12[dump] Remove NDEBUG from test to enable dump methods [NFC]Don Hinton
Summary: Add LLVM_FORCE_ENABLE_DUMP cmake option, and use it along with LLVM_ENABLE_ASSERTIONS to set LLVM_ENABLE_DUMP. Remove NDEBUG and only use LLVM_ENABLE_DUMP to enable dump methods. Move definition of LLVM_ENABLE_DUMP from config.h to llvm-config.h so it'll be picked up by public headers. Differential Revision: https://reviews.llvm.org/D38406 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315590 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-19[MSP430] Align functions on 2-byte boundary instead of 4.Vadzim Dambrouski
Summary: There is no benefit in having the 4-byte alignment, and removing this restriction can save a lot of space for some applications. Reviewers: asl, awygle Reviewed By: awygle Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D36165 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313676 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-22Use report_fatal_error for unsupported calling conventionsAlex Bradbury
The calling convention can be specified by the user in IR. Failing to support a particular calling convention isn't a programming error, and so relying on llvm_unreachable to catch and report an unsupported calling convention is not appropriate. Differential Revision: https://reviews.llvm.org/D36830 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311435 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-10Add "Restored" flag to CalleeSavedInfoKrzysztof Parzyszek
The liveness-tracking code assumes that the registers that were saved in the function's prolog are live outside of the function. Specifically, that registers that were saved are also live-on-exit from the function. This isn't always the case as illustrated by the LR register on ARM. Differential Revision: https://reviews.llvm.org/D36160 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310619 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-03Delete Default and JITDefault code modelsRafael Espindola
IMHO it is an antipattern to have a enum value that is Default. At any given piece of code it is not clear if we have to handle Default or if has already been mapped to a concrete value. In this case in particular, only the target can do the mapping and it is nice to make sure it is always done. This deletes the two default enum values of CodeModel and uses an explicit Optional<CodeModel> when it is possible that it is unspecified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309911 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-23[MSP430] Fix data layout string.Vadzim Dambrouski
Summary: Without this patch some types have incorrect size and/or alignment according to the MSP430 EABI. Reviewers: asl, awygle Reviewed By: asl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D34561 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306159 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-06Sort the remaining #include lines in include/... and lib/....Chandler Carruth
I did this a long time ago with a janky python script, but now clang-format has built-in support for this. I fed clang-format every line with a #include and let it re-sort things according to the precise LLVM rules for include ordering baked into clang-format these days. I've reverted a number of files where the results of sorting includes isn't healthy. Either places where we have legacy code relying on particular include ordering (where possible, I'll fix these separately) or where we have particular formatting around #include lines that I didn't want to disturb in this patch. This patch is *entirely* mechanical. If you get merge conflicts or anything, just ignore the changes in this patch and run clang-format over your #include lines in the files. Sorry for any noise here, but it is important to keep these things stable. I was seeing an increasing number of patches with irrelevant re-ordering of #include lines because clang-format was used. This patch at least isolates that churn, makes it easy to skip when resolving conflicts, and gets us to a clean baseline (again). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304787 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-30TargetPassConfig: Keep a reference to an LLVMTargetMachine; NFCMatthias Braun
TargetPassConfig is not useful for targets that do not use the CodeGen library, so we may just as well store a pointer to an LLVMTargetMachine instead of just to a TargetMachine. While at it, also change the constructor to take a reference instead of a pointer as the TM must not be nullptr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304247 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-24[MSP430] Fix PR33050: Don't use ADD16ri to lower FrameIndex.Vadzim Dambrouski
Use ADDframe pseudo instruction instead. This will fix machine verifier error, and will help to fix PR32146. Differential Revision: https://reviews.llvm.org/D33452 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303758 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-23[MSP430] Add subtarget features for hardware multiplier.Vadzim Dambrouski
Also add more processors to make -mcpu option behave similar to gcc. Differential Revision: https://reviews.llvm.org/D33335 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303695 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-11[MSP430] Generate EABI-compliant libcallsVadzim Dambrouski
Updates the MSP430 target to generate EABI-compatible libcall names. As a byproduct, adjusts the hardware multiplier options available in the MSP430 target, adds support for promotion of the ISD::MUL operation for 8-bit integers, and correctly marks R11 as used by call instructions. Patch by Andrew Wygle. Differential Revision: https://reviews.llvm.org/D32676 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302820 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-09Add extra operand to CALLSEQ_START to keep frame part set up previouslySerge Pavlov
Using arguments with attribute inalloca creates problems for verification of machine representation. This attribute instructs the backend that the argument is prepared in stack prior to CALLSEQ_START..CALLSEQ_END sequence (see http://llvm.org/docs/InAlloca.htm for details). Frame size stored in CALLSEQ_START in this case does not count the size of this argument. However CALLSEQ_END still keeps total frame size, as caller can be responsible for cleanup of entire frame. So CALLSEQ_START and CALLSEQ_END keep different frame size and the difference is treated by MachineVerifier as stack error. Currently there is no way to distinguish this case from actual errors. This patch adds additional argument to CALLSEQ_START and its target-specific counterparts to keep size of stack that is set up prior to the call frame sequence. This argument allows MachineVerifier to calculate actual frame size associated with frame setup instruction and correctly process the case of inalloca arguments. The changes made by the patch are: - Frame setup instructions get the second mandatory argument. It affects all targets that use frame pseudo instructions and touched many files although the changes are uniform. - Access to frame properties are implemented using special instructions rather than calls getOperand(N).getImm(). For X86 and ARM such replacement was made previously. - Changes that reflect appearance of additional argument of frame setup instruction. These involve proper instruction initialization and methods that access instruction arguments. - MachineVerifier retrieves frame size using method, which reports sum of frame parts initialized inside frame instruction pair and outside it. The patch implements approach proposed by Quentin Colombet in https://bugs.llvm.org/show_bug.cgi?id=27481#c1. It fixes 9 tests failed with machine verifier enabled and listed in PR27481. Differential Revision: https://reviews.llvm.org/D32394 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302527 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-26[MSP430] Fix PR32769: Select8 and Select16 need to have SR in Uses.Vadzim Dambrouski
If Select pseudo instruction doesn't have use SR, then CMP instructions are being marked as dead and later can be removed by MachineCSE pass. This leads to incorrect code generation. Differential Revision: https://reviews.llvm.org/D32473 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301372 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-17Distinguish between code pointer size and DataLayout::getPointerSize() in ↵Konstantin Zhuravlyov
DWARF info generation git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300463 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-02[MSP430] Add SRet support to MSP430 targetVadzim Dambrouski
This patch adds support for struct return values to the MSP430 target backend. It also reverses the order of argument and return registers in the calling convention to bring it into closer alignment with the published EABI from TI. Patch by Andrew Wygle (awygle). Differential Revision: https://reviews.llvm.org/D29069 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296807 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-28Test commit, fix typo, NFC.Vadzim Dambrouski
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296447 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-28Use print() instead of dump() in codeMatthias Braun
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293371 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-28Cleanup dump() functions.Matthias Braun
We had various variants of defining dump() functions in LLVM. Normalize them (this should just consistently implement the things discussed in http://lists.llvm.org/pipermail/cfe-dev/2014-January/034323.html For reference: - Public headers should just declare the dump() method but not use LLVM_DUMP_METHOD or #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) - The definition of a dump method should look like this: #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) LLVM_DUMP_METHOD void MyClass::dump() { // print stuff to dbgs()... } #endif git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293359 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-13[CodeGen] Rename MachineInstrBuilder::addOperand. NFCDiana Picus
Rename from addOperand to just add, to match the other method that has been added to MachineInstrBuilder for adding more than just 1 operand. See https://reviews.llvm.org/D28057 for the whole discussion. Differential Revision: https://reviews.llvm.org/D28556 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291891 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-08Fix PR27500: on MSP430 the branch destination offset is measured in words, ↵Anton Korobeynikov
not bytes. Summary: In addition, the branch instructions will have proper BB destinations, not offsets, like before. Reviewers: asl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23718 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286252 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-09Move the global variables representing each Target behind accessor functionMehdi Amini
This avoids "static initialization order fiasco" Differential Revision: https://reviews.llvm.org/D25412 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283702 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-08Turn cl::values() (for enum) from a vararg function to using C++ variadic ↵Mehdi Amini
template The core of the change is supposed to be NFC, however it also fixes what I believe was an undefined behavior when calling: va_start(ValueArgs, Desc); with Desc being a StringRef. Differential Revision: https://reviews.llvm.org/D25342 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283671 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-01Use StringRef in Pass/PassManager APIs (NFC)Mehdi Amini
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283004 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-14Finish renaming remaining analyzeBranch functionsMatt Arsenault
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281535 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-14Make analyzeBranch family of instruction names consistentMatt Arsenault
analyzeBranch was renamed to use lowercase first, rename the related set to match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281506 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-14AArch64: Use TTI branch functions in branch relaxationMatt Arsenault
The main change is to return the code size from InsertBranch/RemoveBranch. Patch mostly by Tim Northover git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281505 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-25MachineFunctionProperties/MIRParser: Rename AllVRegsAllocated->NoVRegs, ↵Matthias Braun
compute it Rename AllVRegsAllocated to NoVRegs. This avoids the connotation of running after register and simply describes that no vregs are used in a machine function. With that we can simply compute the property and do not need to dump/parse it in .mir files. Differential Revision: http://reviews.llvm.org/D23850 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279698 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-19Revert r279242 - it's failing the testsAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279247 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-19Fix PR27500: on MSP430 the branch destination offset is measured in words, ↵Anton Korobeynikov
not bytes. In addition, the branch instructions will have proper BB destinations, not offsets, like before. Patch by Vadzim Dambrouski! Differential Revision: https://reviews.llvm.org/D20162 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279242 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-17Replace "fallthrough" comments with LLVM_FALLTHROUGHJustin Bogner
This is a mechanical change of comments in switches like fallthrough, fall-through, or fall-thru to use the LLVM_FALLTHROUGH macro instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278902 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-29TargetInstrInfo: add virtual function getInstSizeInBytesSjoerd Meijer
This adds a target hook getInstSizeInBytes to TargetInstrInfo that a lot of subclasses already implement. Differential Revision: https://reviews.llvm.org/D22885 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277126 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-28MachineFunction: Return reference for getFrameInfo(); NFCMatthias Braun
getFrameInfo() never returns nullptr so we should use a reference instead of a pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277017 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-28TargetInstrInfo: rename GetInstSizeInBytes to getInstSizeInBytes. NFCSjoerd Meijer
Differential Revision: https://reviews.llvm.org/D22925 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276997 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-15[SelectionDAG] Get rid of bool parameters in SelectionDAG::getLoad, ↵Justin Lebar
getStore, and friends. Summary: Instead, we take a single flags arg (a bitset). Also add a default 0 alignment, and change the order of arguments so the alignment comes before the flags. This greatly simplifies many callsites, and fixes a bug in AMDGPUISelLowering, wherein the order of the args to getLoad was inverted. It also greatly simplifies the process of adding another flag to getLoad. Reviewers: chandlerc, tstellarAMD Subscribers: jholewinski, arsenm, jyknight, dsanders, nemanjai, llvm-commits Differential Revision: http://reviews.llvm.org/D22249 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275592 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-15Rename AnalyzeBranch* to analyzeBranch*.Jacques Pienaar
Summary: NFC. Rename AnalyzeBranch/AnalyzeBranchPredicate to analyzeBranch/analyzeBranchPredicate to follow LLVM coding style and be consistent with TargetInstrInfo's analyzeCompare and analyzeSelect. Reviewers: tstellarAMD, mcrosier Subscribers: mcrosier, jholewinski, jfb, arsenm, dschuff, jyknight, dsanders, nemanjai Differential Revision: https://reviews.llvm.org/D22409 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275564 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-08MSP430: Avoid implicit iterator conversions, NFCDuncan P. N. Exon Smith
Avoid implicit conversions from MachineInstrBundleIIterator to MachineInstr* in the MSP430 backend by preferring MachineInstr& over MachineInstr* when a pointer isn't nullable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274933 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-30CodeGen: Use MachineInstr& in TargetLowering, NFCDuncan P. N. Exon Smith
This is a mechanical change to make TargetLowering API take MachineInstr& (instead of MachineInstr*), since the argument is expected to be a valid MachineInstr. In one case, changed a parameter from MachineInstr* to MachineBasicBlock::iterator, since it was used as an insertion point. As a side effect, this removes a bunch of MachineInstr* to MachineBasicBlock::iterator implicit conversions, a necessary step toward fixing PR26753. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274287 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-30Delete MCCodeGenInfo.Rafael Espindola
MC doesn't really care about CodeGen stuff, so this was just complicating target initialization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274258 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-12Pass DebugLoc and SDLoc by const ref.Benjamin Kramer
This used to be free, copying and moving DebugLocs became expensive after the metadata rewrite. Passing by reference eliminates a ton of track/untrack operations. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272512 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-18Delete Reloc::Default.Rafael Espindola
Having an enum member named Default is quite confusing: Is it distinct from the others? This patch removes that member and instead uses Optional<Reloc> in places where we have a user input that still hasn't been maped to the default value, which is now clear has no be one of the remaining 3 options. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269988 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-13SDAG: Implement Select instead of SelectImpl in MSP430DAGToDAGISelJustin Bogner
- Where we were returning a node before, call ReplaceNode instead. - Where we would return null to fall back to another selector, rename the method to try* and return a bool for success. - Where we were calling SelectNodeTo, just return afterwards. Part of llvm.org/pr26808. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269393 91177308-0d34-0410-b5e6-96231b3b80d8
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