similar to: [ARM] Peephole optimization ( instructions tst + add )

Ok, thank you, I will implement it then. As far as I see this optimization should be done in AArch64LoadStoreOptimizer, is it right? From: Eli Friedman [mailto:efriedma at quicinc.com] Sent: Thursday, November 21, 2019 11:55 PM To: Kosov Pavel <kosov.pavel at huawei.com>; LLVM Dev <llvm-dev at lists.llvm.org> Subject: RE: [llvm-dev] [ARM] Peephole optimization ( instructions tst +

Hello. I have a crash of lldb-3.8 installed for Ubuntu 15.04 from here http://llvm.org/apt/ I want to debug it using gdb by myself but I can't get symbols. Any suggestions on how can I get it? -- Eugene

Hi, Matthew, all nice to hear about interest from Packt Publishing for LLVM I think there are a lot of professionals in this mailing list, who can be an author of the book. But writing a good book demands a lot of time, so that's why there are not so many responses (and also maybe because of well-formed and updated online documentation, which can be a good replacement for the book).

Hello, Min. I suppose I should ask you this: what do people need to know before working with LLVM? Could a book work with that and link it to LLVM specifically? Thanks, Matthew On Sat, Aug 15, 2020, 7:06 PM Min-Yih Hsu via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hi Matthew and all, > > Also I feel like one of the obstacles would be the fast-changing APIs. > Since to

Dear ALl, Sorry for my posting here but do apprecite if u guys help me.. I have already CenOS 5 and been used as my Primary DNS and primary sendmail mail server and is working perfectly fine i also have another Centos MAchine being used as my secondary DNS server and been workin fine.. i want to use this machine as my backup mail server and has gone to the DOCS have configured DNS and

I see strangeness on Thumb TST (tTST) predicate 'isCompare' It is true for regular ARM, false for Thumb: (gdb) p MI->dump() TSTri %reg16397, 3, pred:14, pred:%reg0, %CPSR<imp-def>; GPR:% reg16397 $24 = void (gdb) p MI->getDesc().isCompare() $25 = true (gdb) p MI->dump() tTST %reg16396, %reg16397, pred:14, pred:%reg0, %CPSR<imp-def>; tGPR:%reg16396,16397

On Sep 14, 2010, at 12:09 PM, Gabor Greif wrote: > I see strangeness on Thumb TST (tTST) predicate 'isCompare' > > It is true for regular ARM, false for Thumb: > > (gdb) p MI->dump() > TSTri %reg16397, 3, pred:14, pred:%reg0, %CPSR<imp-def>; GPR:% > reg16397 > $24 = void > (gdb) p MI->getDesc().isCompare() > $25 = true > > > (gdb)

Multiply operations can have a post-factor on them, which other ops don't support. Only perform the peephole optimizations when there is no post-factor involved. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89758 Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp | 12 ++++++++---- 1 file changed, 8 insertions(+),

Hi all, I am slowly working on a SwitchInst optimizer (http://llvm.org/PR8125) and now I am running into a deficiency of the x86 peephole optimizer (or jump-threader?). Here is what I get: andl $3, %edi je .LBB0_4 # BB#2: # %nz # in Loop: Header=BB0_1 Depth=1 cmpl $2, %edi

On Oct 6, 2010, at 6:16 PM, Gabor Greif wrote: > Hi all, > > I am slowly working on a SwitchInst optimizer (http://llvm.org/PR8125) > and now I am running into a deficiency of the x86 > peephole optimizer (or jump-threader?). Here is what I get: > > > andl $3, %edi > je .LBB0_4 > # BB#2: # %nz >

On Oct 13, 2010, at 11:22 AM, Gabor Greif wrote: > Hi Chris, > > I had a look into MachineCSE, but it looks like MBB-oriented. > The above problem is an inter-block one. Also MCSE seems > to perform value numbering on virtual/physical registers, which > does not map very well to status register bits that are implicitly > defined. > Any chance to recast this issue as a

Am 07.10.2010 um 19:50 schrieb Chris Lattner: > > On Oct 6, 2010, at 6:16 PM, Gabor Greif wrote: > >> Hi all, >> >> I am slowly working on a SwitchInst optimizer (http://llvm.org/ >> PR8125) >> and now I am running into a deficiency of the x86 >> peephole optimizer (or jump-threader?). Here is what I get: >> >> >> andl $3,

Hi all, The register allocator that I implemented is failing in the LLVM cvs version, but not in LLVM 1.1. The generated code fails a check in the x86 peephole optimizer: llc: PeepholeOptimizer.cpp:128: bool <unnamed>::PH::PeepholeOptimize(llvm::Machi neBasicBlock&, llvm::ilist_iterator<llvm::MachineInstr>&): Assertion `MI->getNum Operands() == 2 && "These

Hi, GlobalISel is fantastic, but obviously lacks a lot of the transforms that makes SelectionDAG so good. Whilst it's plenty usable, you'll find yourself wanting/needing to add a lot of manual little transforms to clean things up. I know of the RFC for a new Combiner with its own syntax (https://reviews.llvm.org/D54286 is the latest I can find of it), but after manually adding my Nth

Hi, List! I have a problem with rsync. I was trying to synchronize directory trees on 2 servers and got following error: multiplexing overflow 101:7104843 [receiver] rsync error: error in rsync protocol data stream (code 12) at io.c(809) Complete rsync's output: > /usr/local/bin/rsync -avzp user@host:remote_path local_path receiving file list ... done ./ DelphiStudio7.rar

Hi Zed, I checked in a pure-Ruby URI classifier to Mongrel trunk. Ola''s Java port of the TST had some bug, and I don''t think it''s necessary in the first place. The Ruby classifier is around 25 lines instead of the 400-odd lines for the C extension and the 200-odd for the Java extension. It uses a Regexp which is perhaps shady: @matcher = Regexp.new(routes.map do