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* [ARM][LowOverheadLoops] Use subs during revert.Sam Parker2019-09-231-4/+4
| | | | | | | | | | Check whether there are any uses or defs between the LoopDec and LoopEnd. If there's not, then we can use a subs to set the cpsr and skip generating a cmp. Differential Revision: https://reviews.llvm.org/D67801 llvm-svn: 372560
* [ARM][LowOverheadLoops] Use tBcc when revertingSam Parker2019-09-231-1/+1
| | | | | | | | | Check the branch target ranges and use a tBcc instead of t2Bcc when we can. Differential Revision: https://reviews.llvm.org/D67796 llvm-svn: 372557
* [ARM] Fix for buildbotsSam Parker2019-09-171-11/+25
| | | | | | | Add --verifymachineinstrs and update the remaining low overhead loop tests. llvm-svn: 372121
* [Alignment] Use llvm::Align in MachineFunction and TargetLowering - fixes ↵Guillaume Chatelet2019-09-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | mir parsing Summary: This catches malformed mir files which specify alignment as log2 instead of pow2. See https://reviews.llvm.org/D65945 for reference, This is patch is part of a series to introduce an Alignment type. See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html See this patch for the introduction of the type: https://reviews.llvm.org/D64790 Reviewers: courbet Subscribers: MatzeB, qcolombet, dschuff, arsenm, sdardis, nemanjai, jvesely, nhaehnle, hiraditya, kbarton, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, s.egerton, pzheng, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67433 llvm-svn: 371608
* [ARM][LowOverheadLoops] Revert non-header LE targetSam Parker2019-07-301-0/+255
Revert the hardware loop upon finding a LoopEnd that doesn't target the loop header, instead of asserting a failure. Differential Revision: https://reviews.llvm.org/D65268 llvm-svn: 367296
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