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Re: compiler-rt and softfloat
On Wed, Jun 1, 2011 at 5:03 PM, Joerg Sonnenberger
> On Wed, Jun 01, 2011 at 10:20:37AM +0900, Masao Uebayashi wrote:
>> I think so. I also think that pcc should use the one in pcc-libs.
> I disagree.
>> These helper functions are the internal ideas compilers have - which
>> is hard to understand and emulate by outsiders. It's compiler's
>> responsibility to provide helper funcs IMO.
> No, actually, they are a pretty consistent, if underspecified API. There
> is little reason to reinvent the wheel for every compiler/platform
"Underspecified" - yes, but it's much better now than a few years ago.
"Reinvent the wheel" - that is a problem of theirs, not ours.
What I don't like is managing local changes against them. We're
picking up part of libgcc funcs (to use libc/softfloat), which is hard
to maintain. This is why I tried to export all functions from libgcc
in matt-nb5-mips64. Again, my point is that compilers provide helper
funcs, we should use them as is.
If GCC specifies libgcc API clearly, and compiler-rt people implements
100% compatible versions (for all GCC versions), that's simply great.
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