On 22.11.2009 18:22, Daniel Dunbar wrote: > On Sun, Nov 22, 2009 at 7:26 AM, Chris Lattner <[email protected]> wrote: > >> On Nov 14, 2009, at 2:04 PM, Daniel Dunbar wrote: >> >>> Author: ddunbar >>> New Revision: 88819 >>> >>> Add clang -mcpu=native support, patch by Roman Divacky, varioustweaks by me. >>> - We still need support for detecting the target features, since the name >>> doesn't actually do a good job of decribing what the CPU supports (for >>> LLVM). >>> >> Very cool. Should this be the default on linux and BSDs? >> > > I personally think -march=native is not the right default, but I see > the arguments for it. I guess the argument for making it the default > on Linux/BSDs is that many users build their own software? What do > modern GCC's do? IIRC, you brought this up before and I don't think I > was the only opponent. >
Given that I often have to deal with non-developer people who screwed up one machine and need to compile a few recovery apps on another machine, then transfer them via pen drive, my personal preference is to have -mcpu not use anything that may cause problems or extreme slowdowns on the screwed up machine. This is purely from a user perspective though, feel free to ignore it. Regards, Carl-Daniel -- Developer quote of the month: "We are juggling too many chainsaws and flaming arrows and tigers." _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
