[LLVMdev] [3.6 Release] RC4 has been tagged

[Daniel Sanders]

The Mips binary releases are built and tested on Mips hardware Debian Jessie (mips/mipsel) systems. The little-endian system lacks a local hard disk and an FPU so it takes a _very_ long time. The big-endian system still lacks an FPU but it has an SSD and 10 cores so it's pretty quick. Each of these are tested for –mips32, -mips32r2, and default-options. I don't look at the performance of the test-suite yet since the lack of FPU's means that a lot of the tests are really testing the performance of the kernel instruction emulation (2% user 98% sys is pretty common). However, I discovered a few days ago that the 'MIPS Creator CI20' is pretty good at the test-suite (it has an FPU and finishes in ~2 hours) so I'm hoping to have this in place for future releases.
I'm not doing 64-bit builds yet because of a couple issues recursing the compiler with the release script but it's hopefully on its way.

The cross compilation testing builds the test-suite several times (currently 23) for various ISA's, endians, ABI's, etc. and executes the tests under qemu. This lets me cover things I don't have the silicon for at the moment (e.g. Mips32r6, MSA, etc.) but it also prevents meaningful performance testing. I'm hoping to get hardware involved in this where possible but I haven't had time to look into it.

From: Nikola Smiljanic [mailto:popizdeh at gmail.com]
Sent: 23 February 2015 10:46
To: Daniel Sanders
Cc: Hans Wennborg; Ben Pope; Renato Golin; Sylvestre Ledru; Dimitry Andric; Sebastian Dreßler; llvmdev; cfe-dev
Subject: Re: [3.6 Release] RC4 has been tagged

Renato and Daniel, how are you guys testing, are you using real hardware or emulation? I'm just curious about your setup.

On Mon, Feb 23, 2015 at 9:41 PM, Daniel Sanders <Daniel.Sanders at imgtec.com<mailto:Daniel.Sanders at imgtec.com>> wrote:
Mips binaries uploaded.

clang+llvm-3.6.0-rc4-mips-linux-gnu.tar.xz
        All good

clang+llvm-3.6.0-rc4-mipsel-linux-gnu.tar.xz
        Still running due to a silly setup mistake on the first run (a broken symlink to the test-suite source). Second attempt is a fair way through and looks good so far though

clang+llvm-3.6.0-rc4-x86_64-linux-gnu-ubuntu-14.04.tar.xz (cross compiling to Mips)
        Everything was fine until my disk filled up after 14 of the 23 configs I run. I'll rerun those that didn't run first time.

> -----Original Message-----
> From: hwennborg at google.com<mailto:hwennborg at google.com> [mailto:hwennborg at google.com<mailto:hwennborg at google.com>] On Behalf
> Of Hans Wennborg
> Sent: 18 February 2015 23:27
> To: Ben Pope; Renato Golin; Sylvestre Ledru; Dimitry Andric; Sebastian
> Dreßler; Daniel Sanders; Nikola Smiljanić
> Cc: llvmdev; cfe-dev
> Subject: [3.6 Release] RC4 has been tagged
>
> Hello testers,
>
> RC4 has just been tagged (at r229782 on the branch).
>
> RC3 was disqualified due to an infloop that Duncan reported, and fixed
> in r229421. That, fixes for a few scary X86 bugs, a GCC5 bootstrap
> problem (PR22625), and parts of PR22589 is included in RC4.
>
> Baring any showstoppers, this release candidate will be promoted to release.
>
> Please let me know how it looks and upload binaries as usual.
>
> Thanks,
> Hans

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