Volkan Keles 1ccd86b862 [GlobalISel] Legalizer: Retry combining illegal artifacts as long as there new artifacts ... Summary: Currently, Legalizer aborts if it’s unable to legalize artifacts. However, it’s possible to combine them after processing the rest of the instruction because the legalization is likely to generate more artifacts that allow ArtifactCombiner to combine away them. Instead, move illegal artifacts to another list called RetryList and wait until all of the instruction in InstList are legalized. After that, check if there is any new artifacts and try to combine them again if that’s the case. If not, abort. The idea is similar to D59339, but the approach is a bit different. This patch fixes the issue described above, but the legalizer still may be unable to handle some cases depending on when to legalize artifacts. So, in the long run, we probably need a different legalization strategy that handles this dependency in a better way. Reviewers: dsanders, aditya_nandakumar, qcolombet, arsenm, aemerson, paquette Reviewed By: dsanders Subscribers: jvesely, wdng, nhaehnle, rovka, javed.absar, hiraditya, Petar.Avramovic, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D65894 llvm-svn: 369805		2019-08-23 20:30:35 +00:00
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CallLowering.cpp	GlobalISel: pack various parameters for lowerCall into a struct.	2019-08-09 08:26:38 +00:00
CMakeLists.txt	[GISel]: Add GISelKnownBits analysis	2019-08-06 17:18:29 +00:00
Combiner.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
CombinerHelper.cpp	Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM	2019-08-15 19:22:08 +00:00
CSEInfo.cpp	[GlobalISel] CSEMIRBuilder: Add support for G_GEP	2019-08-15 23:45:45 +00:00
CSEMIRBuilder.cpp	[globalisel] Add G_SEXT_INREG	2019-08-09 21:11:20 +00:00
GISelChangeObserver.cpp
GISelKnownBits.cpp	[GlobalISel]: Add KnownBits for G_XOR	2019-08-13 04:32:33 +00:00
GlobalISel.cpp
InstructionSelect.cpp	Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM	2019-08-15 19:22:08 +00:00
InstructionSelector.cpp
IRTranslator.cpp	[GlobalISel] Handle multiple registers in dbg.value intrinsic	2019-08-20 16:28:37 +00:00
LegalityPredicates.cpp
LegalizeMutations.cpp
Legalizer.cpp	[GlobalISel] Legalizer: Retry combining illegal artifacts as long as there new artifacts	2019-08-23 20:30:35 +00:00
LegalizerHelper.cpp	GlobalISel: Don't create G_UADDE with constant false carry in	2019-08-22 17:29:17 +00:00
LegalizerInfo.cpp	[globalisel] Add G_SEXT_INREG	2019-08-09 21:11:20 +00:00
LLVMBuild.txt	Make GlobalISel depend on SelectionDAG after D63169	2019-06-22 01:30:17 +00:00
Localizer.cpp	Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM	2019-08-15 19:22:08 +00:00
MachineIRBuilder.cpp	[GlobalISel] CSEMIRBuilder: Add support for G_GEP	2019-08-15 23:45:45 +00:00
RegBankSelect.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
RegisterBank.cpp
RegisterBankInfo.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
Utils.cpp	Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM	2019-08-15 19:22:08 +00:00