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Programming: LLVM Clang, GCC, 30 Years of Haskell and More

  • Intel GCC Patches + PRM Update Adds SERIALIZE Instruction, Confirm Atom+Core Hybrid CPUs

    Intel has seemingly just updated their public programming reference manual as well as sending out some new patches to the GCC compiler for supporting new instructions on yet-to-be-released CPUs.

    Hitting the mailing list early this morning was support for TSXLDTRK. TSXLDTRK is Intel TSX Suspend Load Address Tracking and is confirmed as coming with Sapphire Rapids / Golden Cove. With that is the XSUSLDTRK to suspend tracking load addresses and XRESLDTRK so that software developers can choose the memory accesses that do not need to be tracked by a TSX (Transactional Synchronization Extensions) read set.

  • Upstreaming LLVM's Fortran "Flang" Front-End Has Been Flung Back Further

    Upstreaming of LLVM's Fortran front-end developed as "f18" and being upstreamed with the Flang name was supposed to happen back in January. Three months later, the developers still are struggling to get the code into shape for integration.

  • LLVM Clang 10.0 Compiler Performance On Intel + AMD CPUs Under Linux

    With last week's release of LLVM/Clang 10.0, here are our first benchmarks looking at the stable release of the Clang 10.0 C/C++ compiler compared to its previous (v9.0.1) release on various Intel and AMD processors under Ubuntu Linux.

  • GCC 11 Will Likely Support Using LLVM's libc++

    While GCC 10 isn't even out for a few more weeks, looking ahead to next year's GCC 11 release is already one interesting planned change.

    GCC 11's C++ front-end (G++) will likely offer support for using LLVM's libc++ standard library. There was recently a question asked on the GCC mailing list over the ability to do -stdlib=libc++ for using LLVM's C++ standard library in conjunction with the GCC C++ compiler.

  • How does kanban relate to DevOps?

    Kanban means "visual signal" and has its roots in the Toyota manufacturing industry. It was developed by Taiichi Ohno to improve manufacturing efficiency. When we jump a few decades into the future, kanban complements agile and lean, often used with frameworks such as scrum, Scaled Agile Framework, and Disciplined Agile to visualize and manage work.

  • Joachim Breitner: 30 years of Haskell

    Vitaly Bragilevsky, in a mail to the GHC Steering Committee, reminded me that the first version of the Haskell programming language was released exactly 30 years ago. On April 1st. So that raises the question: Was Haskell just an April fool's joke that was never retracted?

  • Monthly Report - March

    I lost a friend of mine, Jeff Goff (aka DrForr), who passed away on 13th March, 2020, while snorkeling with a group in the Bahamas. He will be missed by many of his friends. May his soul rest in peace.

    Most of the time last month was occupied by COVID-19. Being a type-2 diabetic didn't help the cause either. I have suffered with consistent cough all my life. It is really scary when think from COVID-19 point of view. I have survived so far by the grace of ALLAH s.w.t.

    I have been working from home since the first week of March. I have been kind of self quarantined. Kids, specially the twins (3 years old) not allowed to play with me. It is really hard to focus on work but somehow I have managed so far. I am getting used to it now.

More in Tux Machines

Python Programming

  • The PEPs of Python 3.9

    With the release of Python 3.9.0b1, the first of four planned betas for the development cycle, Python 3.9 is now feature-complete. There is still plenty to do in terms of testing and stabilization before the October final release. The release announcement lists a half-dozen Python Enhancement Proposals (PEPs) that were accepted for 3.9. We have looked at some of those PEPs along the way; there are some updates on those. It seems like a good time to fill in some of the gaps on what will be coming in Python 3.9

  • How to Write an Installable Django App

    In the Django framework, a project refers to the collection of configuration files and code for a particular website. Django groups business logic into what it calls apps, which are the modules of the Django framework. There’s plenty of documentation on how to structure your projects and the apps within them, but when it comes time to package an installable Django app, information is harder to find. In this tutorial, you’ll learn how to take an app out of a Django project and package it so that it’s installable. Once you’ve packaged your app, you can share it on PyPI so that others can fetch it through pip install.

  • Pros and Cons of Python: A Definitive Python Web Development Guide

    Python is a powerful programming language for mobile and web development projects. It is also the most popular programming language for AI in 2020. RedI Python development’s use cases in scientific computing, statistics, and education make it one of the highly preferred programming languages for Python programmers. The open-source programming language launched in 1992 is now on the verge of becoming the most popular and used programming language. Due to the rise in demand for AI and ML applications, Python web programming is now the first thing that comes to mind for coding such applications. But is Python for web development even worth it? It definitely is. Some of the top companies use Python web programming in their technology stack.

Fedora 32 Elections

mesa 20.1.0

Hi all,

I'd like to announce Mesa 20.1.0, the first release for the 20.1 branch.

Being the first release of this new branch, there can be issues that
will be discovered now that the new code will be widely used, so you may
want to stay on the 20.0.x releases until the 20.1.1 release, scheduled
for 14 days from now on 2020-06-10.

One already known issue that I want to point out is that Unreal Engine 4
has a bug in its usage of glDrawRangeElements() causing it to be
called with a number of vertices in place of the `end` parameter,
that was recently revealed. This is an annoying bug that we haven't
worked around yet. For more details:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/2917

Eric

---

Andrii Simiklit (1):
      i965/vec4: Ignore swizzle of VGRF for use by var_range_end()

Bas Nieuwenhuizen (4):
      radv/winsys:  Remove extra sizeof multiply.
      radv: Handle failing to create .cache dir.
      radv: Do not close fd -1 when NULL-winsys creation fails.
      radv: Implement vkGetSwapchainGrallocUsage2ANDROID.

D Scott Phillips (1):
      anv/gen11+: Disable object level preemption

Danylo Piliaiev (3):
      meson: Disable GCC's dead store elimination for memory zeroing custom new
      mesa: Fix double-lock of Shared->FrameBuffers and usage of wrong mutex
      intel/fs: Work around dual-source blending hangs in combination with SIMD16

Dave Airlie (1):
      llvmpipe: compute shaders work better with all the threads.

Eric Engestrom (4):
      .pick_status.json: Update to a91306677c613ba7511b764b3decc9db42b24de1
      tree-wide: fix deprecated GitLab URLs
      docs: Add release notes for 20.1.0
      VERSION: bump to 20.1.0 release

Erik Faye-Lund (1):
      zink: use general-layout when blitting to/from same resource

Gert Wollny (1):
      r600: Fix duplicated subexpression in r600_asm.c

Hanno Böck (1):
      Properly check mmap return value

Icecream95 (1):
      panfrost: Fix background showing when using discard

Jason Ekstrand (3):
      nir/lower_double_ops: Rework the if (progress) tree
      nir/opt_deref: Report progress if we remove a deref
      nir/copy_prop_vars: Record progress in more places

Kristian Høgsberg (1):
      freedreno: Use the right amount of &'s

Nataraj Deshpande (1):
      dri_util: Update internal_format to GL_RGB8 for MESA_FORMAT_R8G8B8X8_UNORM

Pierre-Eric Pelloux-Prayer (1):
      amd/addrlib: fix forgotten char -> enum conversions

Rhys Perry (1):
      nir: fix lowering to scratch with boolean access

Rob Clark (1):
      freedreno: clear last_fence after resource tracking

Samuel Pitoiset (2):
      radv: handle different Vulkan API versions correctly
      radv: update the list of allowed Android extensions

Timothy Arceri (2):
      glsl: stop cascading errors if process_parameters() fails
      glsl: fix slow linking of uniforms in the nir linker

Vinson Lee (3):
      r600/sfn: Initialize VertexStageExportForGS m_num_clip_dist member variable.
      r600/sfn: Use correct setter method.
      freedreno: Add missing va_end.

git tag: mesa-20.1.0
Read more Also: Mesa 20.1 Released With Numerous Linux Graphics Driver Improvements

Android Mirroring App ‘Scrcpy’ Just Added a Bunch of New Features

If you read this blog regularly enough you’ll be familiar with scrcpy, an ace root-free way to mirror your Android smartphone on your Ubuntu desktop and interact with it. Scrcpy is free, it’s open source, it’s awesome. Oh yeah, and it’s updated regularly! Which is what this post is about: telling you what’s new and notable in the latest release, scrcpy 1.14 — so let’s get to it! Read more