similar to: [LLVMdev] how compile subproject

Displaying 20 results from an estimated 1000 matches similar to: "[LLVMdev] how compile subproject"

2010 Feb 04
2
[LLVMdev] Integrated instruction scheduling/register allocation
A more pressing need is a pre-regalloc scheduler that can switch modes to balance reducing latency vs. reducing register pressure. The problem is the current approach is the scheduler is locked into one mode or the other. For x86, it generally makes sense to schedule for low register pressure. That is, until you are dealing with a block that are explicitly SSE code in 64-bit mode. In that case,
2010 Aug 28
2
[LLVMdev] [Query] Programming Register Allocation
So I have a good understanding of what and how I want to do in the abstract sense. I am starting to gain a feel for the code base, and I see that I may have a allocator up and running much faster than I once thought thanks to the easy interfaces. What I need to know is how to access the machine register classes. Also, I need to know which virtual register is to be mapped into each specific
2012 Jun 18
0
[LLVMdev] Is cross-compiling for ARM on x86 with llvm/Clang possible?
On Sat, Jun 16, 2012 at 20:20:23 +0900, Journeyer J. Joh wrote: > I wonder if llvm/Clang can compile C or C++ for ARM from on x86. Yes. I use clang -emit-llvm -ccc-host-triple arm-unknown-linux-gnu -I /..arm../include/ to generate LLVM bitcode files for ARM. llc then automagically knows to generate ARM assembly, and ARM binutils take it from there. > If the cross compiling is supported,
2010 Feb 05
0
[LLVMdev] Integrated instruction scheduling/register allocation
On Thu, Feb 04, 2010 at 13:59:08 -0800, Evan Cheng wrote: > A more pressing need is a pre-regalloc scheduler that can switch modes to > balance reducing latency vs. reducing register pressure. Right. I'm actually working on implementing a variant of IPS (Goodman and Hsu, Code scheduling and register allocation in large basic blocks, http://doi.acm.org/10.1145/55364.55407) based on the
2010 Feb 06
1
[LLVMdev] Integrated instruction scheduling/register allocation
On Feb 5, 2010, at 2:01 AM, Gergö Barany wrote: > On Thu, Feb 04, 2010 at 13:59:08 -0800, Evan Cheng wrote: >> A more pressing need is a pre-regalloc scheduler that can switch modes to >> balance reducing latency vs. reducing register pressure. > > Right. I'm actually working on implementing a variant of IPS (Goodman and > Hsu, Code scheduling and register allocation
2010 Aug 29
0
[LLVMdev] [Query] Programming Register Allocation
On Sat, Aug 28, 2010 at 16:20:42 -0400, Jeff Kunkel wrote: > What I need to know is how to access the machine register classes. Also, I > need to know which virtual register is to be mapped into each specific > register class. I assume there is type information on the registers. I need > to know how to access it. MachineRegisterInfo::getRegClass will give you the TargetRegisterClass
2012 Jun 16
4
[LLVMdev] Is cross-compiling for ARM on x86 with llvm/Clang possible?
Hello list, I wonder if llvm/Clang can compile C or C++ for ARM from on x86. http://comments.gmane.org/gmane.comp.compilers.clang.devel/8896 The talk above answered 'NO' to my question, which means Clang is not yet able to cross compile for ARM on X86. Is the answer still correct for my question? I saw somewhere that Clang supports ARM on Darwin only. Then is the cross compiling
2010 Aug 29
1
[LLVMdev] [Query] Programming Register Allocation
Thanks for the information. I still don't know how do I partition registers into different classes from the virtual registers? For instance, I have the function who which iterates over the instructions, but I don't know how to write the function which returns the different register class. void RAOptimal::Gather(MachineFunction &Fn) { // Gather just iterates over the blocks,
2012 May 04
2
[LLVMdev] how compile subproject
You can also do make ONLY_TOOLS="llc" Pete On May 3, 2012, at 11:52 PM, Tim Northover wrote: > Hi Beckert, > >> is it possible to compile just an subproject? For example, just llc or lli? > > With CMake you can just type "make llc" from your build directory. I > don't know about the autotools build. > > Tim. >
2010 Nov 26
2
[LLVMdev] ARM Intruction Constraint DestReg!=SrcReg patch?
Hi, Paul Curtis wrote: > If you read the Arm Architecture document for ARMv5, it states for MUL: > > "Operand restriction: Specifying the same register for <Rd> and <Rm> was > previously described as producing UNPREDICTABLE results. There is no > restriction in ARMv6, and it is believed all relevant ARMv4 and ARMv5 > implementations do not require this
2012 Jun 21
1
[LLVMdev] LLVM stack
Hello Everyone, Would you please send me any links to documentation on LLVM stack? I am particularly interested in knowing how each instruction in an LLVM bit code file(.ll file) affects its stack. To be specific, is it possible to map an LLVM program as operations on a stack? Thanks, Amruth
2012 Aug 02
1
[LLVMdev] Question about arm thumb2 code generation
Thanks andrew for the answer. I would like to generate code for Cortex-A9 that don't use neon for fp computation but vfpv3 -d16. I've tried some combination of -mattr=+neon,-neonfp,+vfp3,+d16 but couldn't get ".fpu vfpv3-d16" directive generated in assembly file. Do you know how to make it happen ? Best Regards Seb From: Andrew Trick [mailto:atrick at apple.com] Sent:
2012 Aug 08
1
[LLVMdev] Creating DAGs
All, I apologize if this is an inappropriate question for this mailing list. If so, please recommend an appropriate place to post the question. I'm also somewhat new to LLVM, so I could have some pretty fundamental misunderstandings about what I am trying to do. I have searched for information on the llvm.org website (user's guide, programmer's manual and doxygen documentation),
2012 May 04
2
[LLVMdev] how compile subproject
> Neither worked. =( Hmm. Something seems to have gone horribly wrong then. I've just reproduced Peter's suggestion on the autoconf build and it worked fine. Perhaps try a clean build out of tree: CMake: mkdir my_special_build_dir cd my_special_build_dir cmake $PATH_TO_LLVM_SOURCE make llc Autotools: mkdir my_special_build_dir cd my_special_build_dir $PATH_TO_LLVM_SOURCE/configure
2012 Sep 10
5
[LLVMdev] Minimum Array Size
Hello, clang currently seems to generate the same code for both: double something_a(char A[const static 256]) { ... } and for: double something_b(char (*const A)) { ... } even though in the first case the programmer has told us that the array A is at least 256 bytes in length (and, thus, will not be null). Do we currently have a way to pass this information to LLVM? Thanks again, Hal
2011 May 26
2
[LLVMdev] Need advice on writing scheduling pass
Hi, thank you for your explanations. In order to get a pre-RA scheduling, I would need something like: - LiveVars - PhiElim - TwoAddr - LiveIntervals - Coalescing - Scheduler (new) - SlotIndexing - LiveIntervals2 (new) - RegAllocMy qeustion then is, is it really so difficult to create the live intervals information, with modifications to the original algorithm, or even from scratch?
2011 Nov 09
3
[LLVMdev] Alternate instruction sequences
I was wondering, is there any way to express in the IR that an instruction/instruction sequence/basic block/region/function/module/whatever is an alternate version of another? e.g. let's keep things simple and say that I have an instruction I. An optimization pass reads it and could be able to produce one or more functionally-equivalent instructions I1, ..., In without being really able
2012 May 05
0
[LLVMdev] how compile subproject
Hi, thanks for your answers. I did: cd workspace svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm cd llvm/ mkdir build cd build/ ../configure --enable-jit make                                                      # OK, everything went fine. cd ../lib/Transforms/InstCombine/            # Just to test vim InstCombineCalls.cpp                       # added `if (0 == 1) return 0;` at
2010 Dec 06
0
[LLVMdev] Reviewer for our Path Profiling Implementation
On Dec 3, 2010, at 11:21 AM, Adam Preuss wrote: > I am a student at the University of Alberta under the > supervision of José Nelson Amaral, and I have been working on > implementing path profiling into LLVM. I have completed my project > and would like to submit it. > > We are looking for a reviewer for the path profiling implementation. We > have sent previous requests
2012 May 04
0
[LLVMdev] how compile subproject
Hi Beckert, > is it possible to compile just an subproject? For example, just llc or lli? With CMake you can just type "make llc" from your build directory. I don't know about the autotools build. Tim.