similar to: [LLVMdev] make check for clang/llvm

I've always debugged the backend llc by running it as a separate executable. I'm seeing a bug that only happens when I run the compiler from clang. How do you debug this from gdb? I can put a breakpoint but it never stops when I say "run ...." Tia. Reed

Are you debugging the driver process or the -cc1 process? To get the -cc1 process, unfortunately you have to go through the dance of passing -### to get the -cc1 line and then run that in gdb (or write one manually). Alternatively in gdb you can say "set follow-fork child" (or something, check the docs) to automatically follow into the -cc1 child. On Tue, May 21, 2013 at 8:00 AM,

Is there a way to just run one test with "make check" for either the llvm or clang test suites? Tia. Reed

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

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:

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: >> On 02/25/2014 09:30 AM, Richard Sandiford wrote: >>> reed kotler <rkotler at mips.com> writes: >>>> On 02/24/2014 04:42 PM, Eric Christopher wrote: >>>>> On Mon, Feb 24, 2014 at 4:40 PM, reed kotler <rkotler at

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.

On 02/25/2014 09:30 AM, Richard Sandiford wrote: > reed kotler <rkotler at mips.com> writes: >> 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

`llvm-lit path/to/test/file/here` Joey On 12 January 2013 12:08, Reed Kotler <rkotler at mips.com> wrote: > Is there a way to just run one test with "make check" for either the llvm > or clang test suites? > > Tia. > > Reed > ______________________________**_________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu

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

On 02/13/2014 11:35 AM, Tim Northover wrote: > Hi Reed, > >> but then many tests fail when i do a "make check" > > That's not normal (all tests pass for me on Linux and OS X). Is this > on your build machine, or a MIPS board with some odd > cross-compilation? The latter is more likely to have weird CMake > issues (I know AArch64 does if you're not

Is there a way to run make check and force it to add verify-machineinstr on each llvm assembly file? Tia. Reed

Mips 16 is basically to save space. I want to start comparing real benchmarks with llvm and gcc -mips16. Does -Os have any meaning currently to clang? llvm? What about inlining? Is inlining turned off? Tia. Reed

Does anyone know some simple c/c++ code or .ll code which will cause this ctlz pattern to be emitted? Tia. Reed

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 04/20/2013 02:04 PM, Reed Kotler wrote: > On 04/20/2013 01:30 PM, reed kotler wrote: >> Can I create a "naked" function that has only inline assembler and no >> return IR for example? >> >> If I create just a function will an empty basic block, it's core dumps. >> >> I'm debugging it now. > > Seems that you have to have at least a

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 16 August 2013 20:02, reed kotler <rkotler at mips.com> wrote: > -std=gnu89 is not valid for c++ > I think the point here is that this is the default std for GCC but not Clang, so you have to force clang to behave like GCC. For C++, you'll have to force whatever default GCC has for it's C++ standard. Though, GCC 4.8 is getting very close to Clang's behaviour, so

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.