On Thursday, May 28, 2020 9:41:54 PM MST Paul Dufresne via devel wrote: > On 2020-05-28 7:36 a.m., Dridi Boukelmoune wrote: > > On Tue, May 26, 2020 at 12:07 PM Jan Kratochvil > > > > <jan.kratoch...@redhat.com> wrote: > >> On Sun, 24 May 2020 05:21:05 +0200, Paul Dufresne via devel wrote: > >>> The idea was to push code generation as near as possible of code > >>> execution. > >>> Because at execution time, you know what are the specific features of > >>> the > >>> CPU, and what is used to most often by the user of the program. > >> > >> In Free Software you have that already - it is called the source code. > >> If you want host-specific optimizations use Gentoo Linux. > > > > One could implement a DNF plugin that builds packages locally since we > > have source RPM repositories. > > Well... when I said code generation as near as possible of code > execution... I did not want to start compiling from source code, which > take way too long in my opinion. LLVM Intermediate Representation is a > bit like compiled Java, or run-everywhere .NET exe, that are not yet > generated code for a specific CPU. But unlike compiled Java or .Net > intermediary language that are specific to one language or family of > language, LLVM intermediate language is like a RISC assembler with > unlimited registers (as far as I know). Also using some Single Static > Assignment, like used in C compilers to make it easier to do > transformations on the code. LLVM IR can be run with *"lli* directly > executes programs in LLVM bitcode format. It takes a program in LLVM > bitcode format and executes it using a just-in-time compiler or an > interpreter." > > But when I proposed that, I was not aware main developer had been hired > by Apple. And like people have replied before, they don't like the Clang > (C, C++ LLVM-based compiler) I guess in good part because of the more > permissive license than GPL it use: Illinois/NCSA license.
Paul, What benefit do you see in the overhead of LLVM IR, compared to standard packages? -- John M. Harris, Jr. Splentity _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
