Messages in this thread | | | Date | Wed, 19 May 2010 09:13:57 +0200 | From | Ingo Molnar <> | Subject | Re: Does anyone care about gcc 3.x support for *x86* anymore? |
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(reposted with Andrew and Linus Cc:-ed too)
* H. Peter Anvin <hpa@zytor.com> wrote:
> [Reposting as a separate thread] > > Recently, we have seen an increasing number of problems > with gcc 3.4 on x86; mostly due to poor constant > propagation producing not just bad code but failing to > properly eliminate what should be dead code. > > I'm wondering if there is any remaining real use of gcc > 3.4 on x86 for compiling current kernels (as opposed to > residual use for compiling applications on old > enterprise distros.) I'm specifically not referring to > other architectures here -- most of these issues have > been in relation to low-level arch-specific code, and as > such only affects the x86 architectures. Other > architectures may very well have a much stronger need > for continued support of an older toolchain. > > If there isn't a reason to preserve support, I would > like to consider discontinue support for using gcc 3 to > compile x86 kernels. If there is a valid use case, it > would be good to know what it is. > > -hpa > > -- > H. Peter Anvin, Intel Open Source Technology Center > I work for Intel. I don't speak on their behalf.
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