search for: spu

Jerome: No, there are no plans to JIT to SPU. That's considerably more complicated -- you'd have to figure out when to JIT to the SPU and live with all of the constraints that the SPU imposes (data reformatting, r/w DMA, ensure your code lives in 256K unless you can manage to interface with the virtual I-cache work.) Basically, it...

Hi, attached is a second try for the bigstack patch for SPU, with testcase. It is essentially the patch committed as 97091, and reverted as 97099, but with the following additions: -in vararg handling, registers are marked to be live, to not confuse the register scavenger -function prologue and epilogue are not emitted, if the stack size is 16. 16 means...

On Mar 29, 2010, at 6:50 AM, Kalle Raiskila wrote: > attached is a second try for the bigstack patch for SPU, with testcase. It is essentially the patch committed as 97091, and reverted as 97099, but with the following additions: > -in vararg handling, registers are marked to be live, to not confuse the register scavenger Looks good. You can try running with -verify-machineinstrs to detect more issues...

...ons and globals in a different than the given way? No way to partition the structure new? I would really like to know how code is generated for heterogeneous architectures like Cell? I thought they use a kind of (module?) partition to difference between the parts that should be mapped on SPU and PPU ... :-( Time to think about again ;-) Nico

...is it possible to use the LLVM JIT on a PS3 with Yellow Dog 6.2 distribution, instead of the LLVM interpreter, by using the PPE as it seems to be similar to 64-bit PowerPC processors? 2009/12/18 Scott Michel <scooter.phd at gmail.com> > Jerome: > > No, there are no plans to JIT to SPU. That's considerably more complicated > -- you'd have to figure out when to JIT to the SPU and live with all of the > constraints that the SPU imposes (data reformatting, r/w DMA, ensure your > code lives in 256K unless you can manage to interface with the virtual > I-cache work...

Hi, On SPU, variables in the .bss section that are allocated with the .lcomm directive are not aligned on 16 byte boundaries. This causes misaligned loads, as the generated assembly assumes this "default" alignment. A patch to disable .lcomm in favour of '.local .comm' is attached. kall...

I compiled the following code with llvm-gcc (4.2.1) and llc (2.3svn) for spu of Cell broadband engine processor. > cat add.c float add (float a, float b) { return a + b; } > llvm-gcc add.c --emit-llvm -c -o add.bc > llc -march=cellspu add.bc Cannot yet select: 0x867c700: v4f32 = SPUISD::INSERT_MASK 0x8670800 Abort (core dumped) But llc returned th...

Hello > Is there additionnals information to provide to the linker when > compiling llvm on mac os x? Do you have libffi installed somehere? > > > The second question concerns Yellow Dog Distribution(6.2) on CellSPU > processor. Does lli support JIT compilation on CELL? No. As far as I can see, there is no JIT for SPU. -- With best regards, Anton Korobeynikov. Faculty of Mathematics & Mechanics, Saint Petersburg State University.

Hello, I noticed that the SPU assembly printer prints just ".bss", when gas requires ".section .bss". Now the gas prints out: Assembler messages: Error: expected symbol name Attached is a test case and a patch to fix this. (This time 'make check' passes also ;) kalle -------------- next part --...

hi, either function call in this code makes llc (targeting SPU) assert: declare i8 @return_i8() declare i16 @return_i16() define void @testfunc() { %rv1 = call i8 @return_i8() %rv2 = call i16 @return_i16() ret void } Attached is a patch to fix it, and remove some related redundant code. Does this rather trivial fix warrant a test case? kalle ------...

As Andy Pinski pointed out, there were some really good reasons why Cell SPU support never made it into gcc 4.2. I've attached the patches from the 4.1.1 compiler, and I've applied+compiled them in my local tree. I suggested creating a branch, but since they appear to be relatively disjoint, the need for a branch doesn't seem necessary. Sorry for the large pat...

Hello all, currently the SPU backend does not handle big stack frames (>16*511 bytes) nicely. llc asserts on malformed machine instructions. (Assertion `MI->getOperand(OpNo).isImm() && "printDFormAddr first operand is not immediate") E.g. the function: define i32 @foo() nounwind { entry: %retval =...

On Feb 22, 2010, at 6:08 AM, Kalle.Raiskila at nokia.com wrote: > Hello all, > > currently the SPU backend does not handle big stack frames (>16*511 > bytes) nicely. llc asserts on malformed machine instructions. > (Assertion `MI->getOperand(OpNo).isImm() && "printDFormAddr first > operand is not immediate") Sounds fine to me in general. Please write a testcase...

...fig inside CMake). This project has been successfully tested on Linux and windows platforms with the same computer. So my first question is : Is there additionnals information to provide to the linker when compiling llvm on mac os x? The second question concerns Yellow Dog Distribution(6.2) on CellSPU processor. Does lli support JIT compilation on CELL? For the moment, it seems to only work with the interpreter (-force-interpreter option). Many thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20091208...

...Ubuntu 13.10 with Samba 3.6.18. I have Kerberos properly configured and have successfully joined the domain, and can list users, groups, etc. All I want to do is have a server that is part of AD, and have a public share on it. The smb.conf is very simple and listed here: [global] workgroup = SPU server string = %h server (Samba, Ubuntu) dns proxy = no log file = /var/log/samba/log.%m max log size = 1000 log level = 3 syslog = 0 panic action = /usr/share/samba/panic-action %d security = ADS realm = SPU.COS.LOCAL map to guest = Bad User usershare allow guests...

Firstoff, let me say what a mind fsck the Cell SPU can be. It's really not that hard an architecture to get one's mind around, but I can see how it becomes a compiler writer's nightmare. And I'm attempting to write a SPU backend. And it's going slowly. Here's my problem: The SPU's registers are all 128-bit vector regis...

...JTjAxXHByb2ZpbGVzXHNwdQ0= sn:: c3B1DQ== pwdmustchange:: MjE0NzQ4MzY0Nw0= ntpassword:: QzEwQ0Q1NDBGMjc2MUFGQzExRkFERjdEQUVERUQ0MjEN -------------- next part -------------- dn: ou=users, dc=toto,dc=be ou: users description: utilisateurs corman objectClass: top objectClass: organizationalUnit dn: uid=spu, ou=users, dc=toto,dc=be logonTime: 0 displayName: System User lmPassword: 30C04294B6C7D9521AA818381E4E281B primaryGroupID: 1201 objectClass: inetOrgPerson objectClass: posixAccount objectClass: sambaAccount smbHome: \\ADMIN01\homes acctFlags: [UX] scriptPath: adm.bat userPassword:: e1NTSEF9b3FGN2R...

Hi all, Does anyone have any experience porting libvorbis to platforms with small total memory sizes? Specifically, I'm trying to figure out if it's feasible to run Ogg Vorbis decoding on one of the PlayStation 3's SPU's -- secondary processors with only 256kb of local memory. It looks like out of the box the memory footprint of libvorbis is roughly: ~130k code ~60k static data ~160k heap So clearly there's some work to be done. I have some ideas of things to try... speed isn't a huge issue so I...

...te: >>    I was trying to extract out the IR for some CELLBE code. However i >> was not able to compile with llvm-gcc. > > Can you give a couple examples of error messages you're getting? llvm-gcc -emit-llvm -S -W -Wall -Winline -Wno-main -I. -I /opt/cell/sysroot/usr/spu/include -I /opt/cell/sysroot/opt/cell/sdk/usr/spu/include -O3 -c simpleDMA_spu.c simpleDMA_spu.c:42:23: error: spu_mfcio.h: No such file or directory simpleDMA_spu.c: In function ‘main’: simpleDMA_spu.c:60: warning: implicit declaration of function ‘mfc_tag_reserve’ simpleDMA_spu.c:60: error: ‘MFC...

On Thu, 2010-06-03 at 02:53 +0200, Jakob Stoklund Olesen wrote: > If you are using the local register allocator, please try switching to the fast allocator and report any bugs you find. > Tried it, and it seems to break quite a big chunk of our tests on SPU :) Before r103488 ("Mostly rewrite RegAllocFast") there was no problem. But with r103488, I get a: llvm/lib/CodeGen/RegisterScavenging.cpp:196: void llvm::RegScavenger::forward(): Assertion `SubUsed && "Using an undefined register!"' failed. In r103685 ("More...