similar to: [LLVMdev] dragonegg

On 02/23/2013 04:28 AM, David Chisnall wrote: > Hi Reed, > > -Os could do with some love. It is more or less the same set of passes as -O2, but with a few things that are most likely to increase code size removed. We have had problems with it in the past for FreeBSD's bootloader. By tweaking the set of default passes added for -Os, I got the size down by about 20%, but I didn't

At one of the BOFS during the llvm conference a few years back, one of the Apple managers stated in effect that their view of -Os was to get some modest savings but only if performance has near 0 impact. On 02/23/2013 09:45 AM, Reed Kotler wrote: > On 02/23/2013 04:28 AM, David Chisnall wrote: >> Hi Reed, >> >> -Os could do with some love. It is more or less the same set

On 02/24/2014 04:42 PM, Eric Christopher wrote: > On Mon, Feb 24, 2014 at 4:40 PM, reed kotler <rkotler at mips.com> wrote: >> I need to leave soon and will take a look in the morning. >> >> I did look at the autoconf input files configure.ac >> >> There is a disable-zlib but not a disable-valgrind, even though it seems >> like there used to be.

Hi Reed, -Os could do with some love. It is more or less the same set of passes as -O2, but with a few things that are most likely to increase code size removed. We have had problems with it in the past for FreeBSD's bootloader. By tweaking the set of default passes added for -Os, I got the size down by about 20%, but I didn't have time to evaluate whether this was a general saving or

I need to leave soon and will take a look in the morning. I did look at the autoconf input files configure.ac There is a disable-zlib but not a disable-valgrind, even though it seems like there used to be. You can find scripts on the internet when you google of people adding disable-valgrind to configure. I can probably implement disable-valgrind in configure.ac. Reed On 02/24/2014 04:33

What is the purpose of tablegen created files for fast-isel? If I make the following change to Makefile in lib/Target/Mips BUILT_SOURCES = MipsGenRegisterInfo.inc MipsGenInstrInfo.inc \ MipsGenAsmWriter.inc MipsGenCodeEmitter.inc \ MipsGenDAGISel.inc MipsGenCallingConv.inc \ - MipsGenSubtargetInfo.inc MipsGenMCCodeEmitter.inc \ +

I used the A9 schedule as an example: http://llvm.org/svn/llvm-project/llvm/trunk/lib/Target/ARM/ARMScheduleA9.td The documentation could use more clarity, but this is how I was able to do it to always get two specific instructions to be scheduled together. ________________________________________ From: reed kotler [rkotler at mips.com] Sent: Tuesday, September 17, 2013 8:54 PM To: Micah Villmow

That doesn't actually give you a guarantee that they won't be split up. Phases other than the scheduler may insert instructions in the middle of block (constant island pass, for example). Pseudo-instructions are the canonical answer to that problem. --Owen On Sep 17, 2013, at 11:09 PM, Micah Villmow <micah.villmow at smachines.com> wrote: > I used the A9 schedule as an

On 02/24/2014 04:19 PM, Eric Christopher wrote: > On Mon, Feb 24, 2014 at 4:14 PM, reed kotler <rkotler at mips.com> wrote: >> I'm trying to build a native hosted mips compiler on ubuntu x86. >> >> When I run configure with clang/llvm as the compiler, configure thinks that >> zlib is present and that valgrind is. >> >> But later on the make it

On 08/16/2013 02:13 PM, Eli Friedman wrote: > On Fri, Aug 16, 2013 at 2:01 PM, reed kotler <rkotler at mips.com > <mailto:rkotler at mips.com>> wrote: > > the good news is that (thanks to Simon) the clang driver is > working so well for Mips now that we are more or less switching > away from using llc during development for all our various >

----- Original Message ----- > From: "Reed Kotler" <rkotler at mips.com> > To: "Hal Finkel" <hfinkel at anl.gov> > Cc: LLVMdev at cs.uiuc.edu > Sent: Friday, November 22, 2013 11:18:53 PM > Subject: Re: bugpoint question > > In that case it tries to do something but fails. > > rkotler at ubuntu-rkotler:~/testmips16$ >

the good news is that (thanks to Simon) the clang driver is working so well for Mips now that we are more or less switching away from using llc during development for all our various host/target configurations. the bad news is that we have make clang all the time and it is really slow to do that. we used to be able to just make in the lib/target/Mips and then in llc and it was really fast.

If you can help get it working on big-endian systems, we should be able to remove the XFAIL. That seems like the cleanest way out of this. Yuchen sent a patch to llvm-commits on 12/19/13. (I can resend it to you if you don’t have that.) Can you try that out on a BE mips system? On Feb 21, 2014, at 7:11 AM, Reed Kotler <Reed.Kotler at imgtec.com> wrote: > On 02/21/2014 02:58 AM, Daniel

On 03/10/2014 03:37 PM, Eric Christopher wrote: > cc'ing Bill as Release Manager > > On Mon, Mar 10, 2014 at 2:53 PM, reed kotler <rkotler at mips.com> wrote: >> I'm trying to understand how Mips will fit into the official release >> procedure. >> >> There are two Mips compilers: >> 1) The X86 resident llvm/clang compiler that can generate

On 12/15/2012 12:53 PM, Chandler Carruth wrote: > On Sat, Dec 15, 2012 at 12:33 PM, Reed Kotler <rkotler at mips.com > <mailto:rkotler at mips.com>> wrote: > > I have an approved target independent putback and i've run all > that we have at Mips as well as on x86 " make TEST=simple" > > Is there anything else that is easy to run that I

On 03/28/2013 12:22 PM, Nadav Rotem wrote: > Hi Reed, > > On Mar 28, 2013, at 12:18 PM, Reed Kotler <rkotler at mips.com > <mailto:rkotler at mips.com>> wrote: > >> As for the BasicTransformInfoPassass, for this dual mode I'm using >> createNoTargetTransformInfoPass right now. > > So, MIPS does not need LSR, LowerSwitch and other optimizations

How is alignment set? On 02/04/2014 08:48 AM, Rafael Espíndola wrote: > On 31 January 2014 18:59, reed kotler <rkotler at mips.com> wrote: >> I'm rewriting this patch for the stubs to not use outputing of raw text. >> >> Generating the instructions is very straightforward and that part is done. > awesome! > >> I'm translating the actual function

In that case it tries to do something but fails. rkotler at ubuntu-rkotler:~/testmips16$ /home/rkotler/llvmw/install/bin/bugpoint casts.bc -llc-safe --safe-tool-args -target=mips-linux-gnu -mcpu=mips16 -mips16-constant-islands Read input file : 'casts.bc' *** All input ok Initializing execution environment: Found llc: /home/rkotler/llvmw/install/bin/llc Running the code

The issues seems to be this line in the tools Makefile timeit-target: timeit.c $(LD_ENV_OVERRIDES) $(LCC) -o $@ $< $(LDFLAGS) $(CFLAGS) $(TARGET_FLAGS) -O3 It should not add target flags if we are simulating the target on the host. On 06/06/2013 06:59 PM, reed kotler wrote: > I want to get lnt to use qemu for the execution. > > In that case, RHOST= is not set. > > But I

I see what my problem is here.... I'll continue to move further. Seems like Richards fix is still okay. On 02/25/2014 02:42 PM, Eric Christopher wrote: > On Tue, Feb 25, 2014 at 2:41 PM, reed kotler <rkotler at mips.com> wrote: >> On 02/25/2014 02:38 PM, Eric Christopher wrote: >>> On Tue, Feb 25, 2014 at 2:32 PM, reed kotler <rkotler at mips.com> wrote: