On Tue, 2003-02-04 at 21:25, Pawel Salek wrote: > On 2003.02.04 19:06 Michel Dänzer wrote: > > > > And there's even more: newer compilers seem to optimize away some of > > the > > reads with strict aliasing. I thought I'd steal some code from the > > kernel to detect if the compiler supports -fno-strict-aliasing, but it > > looks like it just uses that unconditionally. We probably want to do > > the > > same for the DRM at least? AFAIR it's been supported since early 2.95. > > Isn't the volatile keyword the right way to disable such optimizations?
The problem with strict aliasing is slightly different, though I don't pretend to understand it fully, so far, what I've figured out is that it's the definitive enemy of anybody doing typecasts, like we do regulary in drivers. Ben. ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
