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Comment: Re:Or upgrade to llvm ... (Score 1) 640

by perpenso (#47554485) Attached to: Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"

LLVM has improved a lot, but in CPU-bound workloads such as cryptography, GCC still outperforms it by 15% or more.

"When it comes to the run-time performance of the compiled programs, GCC previously outperformed LLVM by about 10% on average. Newer results do indicate, however, that LLVM has now caught up with GCC in this area, and is now compiling binaries of approximately equal performance, except for programs using OpenMP"
http://en.wikipedia.org/wiki/L...

Comment: Re:Or upgrade to llvm ... (Score 1) 640

by perpenso (#47554467) Attached to: Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"

Disregard my previous post, it's even worse than I thought. If I take your own source, it doesn't even back up its own introduction. According to that Wikipedia page the only frontend mentioned that is in better state than a vague 'state of development' is Haskell.

The development state of the various language front ends is irrelevant. Their existence proves the point that llvm is not specific to c or c-derived languages.

So yeah. You're a stupid fanboi who cannot but parrot marketing language.

Actually the fanboi in this conversation is the person getting all emotional. You might want to re-evaluate who that is. I'm just a person who thinks the option to use gcc **or** an llvm based compiler would be nice. No one is saying gcc should be replaced, you need not get all emotional and defensive. I often like to use different compilers, especially different architecture targets, as a way to shake bugs out of code.

Comment: Your grocery store experiments on you ... (Score 3, Informative) 69

by perpenso (#47554339) Attached to: OKCupid Experiments on Users Too
That probably depends upon whether you consider the terms of use of the online service, grocery store loyalty card, casino player's card, etc to be transparent. Those terms of use that no one reads.

There is also consent by action. The casino does A/B testing by offering some a $40 steak dinner plus $40 in chips while it offers others $80 in chips. You clicked on the advertisement/offer, or you opened the envelope that arrived in your postal mail, etc.

Similarly the coupons a grocery store offers you are often part of an experiment. Hell, changing the items on the isle end caps are sometimes part of an experiment.

My marketing processor thought that grocery store loyalty cards were the greatest invention ever in the history of marketing. The data collected and opportunity for experiments enormous.

Comment: Re:"or later" ... its a blank check ... its a trap (Score 1) 640

by perpenso (#47547111) Attached to: Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"

The resulting binary derives its license from its source, not the compiler used.

Until you build something that doesn't allow you to license the runtime libraries without bringing the entire executable under the same license.

That's not the compiler, and that doesn't happen with bsd licensed tools/libs.

Comment: Bet he can't tell ... (Score 4, Insightful) 520

by perpenso (#47545345) Attached to: Satellite Images Show Russians Shelling Ukraine

I bet you could not tell the difference between a civilian plane and a military plane flying at 30,000 feet over a war zone either.

I bet he can't tell them apart either, but I also bet he wouldn't fire a missile at it. *Firing a missile anyway* is the important thing here, not a failure to identify the aircraft.

Comment: Re:Or upgrade to llvm ... (Score 4, Informative) 640

by perpenso (#47545037) Attached to: Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"

That may be an upgrade if all you program in is a C-derivative.

"Originally implemented for C and C++, the language-agnostic design (and the success) of LLVM has since spawned a wide variety of front ends: languages with compilers that use LLVM include ActionScript, Ada, D, Fortran, OpenGL Shading Language, Haskell, Java bytecode, Julia, Objective-C, Swift, Python, Ruby, Rust, Scala, and C#."
http://en.wikipedia.org/wiki/L...

Comment: Re:Or upgrade to llvm ... (Score 1) 640

by perpenso (#47544959) Attached to: Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"

Debian people should probably downgrate their shiny new compiler.

Or upgrade to llvm. Being [able] to compile with either gcc or llvm would be a nice option.

"Update to to icc", that I would understand (for Intel platforms). "Upgrade to LLVM" sounds like this is not coming from a C++ programmer who really cares about the final binary ...

Then your politics is blinding you. Having two unrelated compilers build your code is sometimes helpful in finding bugs in your code. Bug free is goal #1. Being slightly faster is an important but secondary consideration. As I said, it would be nice to have the option to compile with *either* gcc or llvm. Again, note "either", only your politics is creating the straw man of llvm replacing gcc.

Plus one compiler being faster than another is not a given, things change over time

Comment: "or later" ... its a blank check ... its a trap ! (Score 1) 640

by perpenso (#47544813) Attached to: Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"

The main problem is that Linus did not take copyright assignments, so it's practially impossible now to relicense the Linux kernel or upgrade it to GPLv3. Therefore, always remember to use "GPLv3 or later" when you release software. The "or later" is really important.

No, Linus did the right thing. "Or later" is very dangerous, its a blank check, its an unknown, ... its a trap! We have no idea what some future GPL license may include. It may include things that we do not want. As some developers who are staying with gpl 2 intentionally have said about gpl 3.

That said, the above is off topic. Compiling the kernel with llvm does not change the license of the kernel. A BSD licensed compiler has no effect on GPL licensed source code. The resulting binary derives its license from its source, not the compiler used.

Comment: Compiler doesn't change the license ... (Score 5, Informative) 640

by perpenso (#47544637) Attached to: Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"

Debian people should probably downgrate their shiny new compiler.

Or upgrade to llvm. Being [able] to compile with either gcc or llvm would be a nice option.

How could you _upgrade_ from GPLv3 to BSD? Sounds like the reverse.

Compiling with a BSD licensed compiler does not change the license of the software being compiled. Linux would remain gpl regardless of whether gcc or llvm is used.

Comment: Some politicians are just like wall street ... (Score 1) 104

by perpenso (#47544605) Attached to: SpaceX Executive Calls For $22-25 Billion NASA Budget

why should we fund NASA at all?

For exploration, for technology development. Some things are too big, too risky or the return on investment too long for commercial space companies.

Contrary to some of its critics beliefs, some NASA spending does have a return on investment, a benefit to the U.S. economy and U.S. society. Much like some investments in basic scientific research. The problem is that some politicians are just like wall street, they want to see the payback in a fiscal quarter or two -- well unless their district provides something to NASA. Sometimes budget cuts are a politician's way of saying "I didn't get my piece of the pie".

Comment: More CS Majors ... (Score 1) 90

by perpenso (#47535877) Attached to: The Truth About Solar Storms

If the humanities infrastructure suffers, no doubt there'll be fewer English majors, and more CS majors, so it'll be a good thing, right? Or did someone mean "humanity's infrastructure"?

If we get more CS majors then maybe we can update the voice recognition software to do a better job of picking between phonetically similar words using context.

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