Bug#704111: [cfe-dev] Bug#704111: clang fails to correctly implement hard float ABI during default compiles due to rediculously low default CPU setting.

Anton Korobeynikov anton at korobeynikov.info
Thu Mar 28 08:41:30 UTC 2013


> 2: If noone can provide an answer to the above question then taking into the
> account how late we are in the freeze should we play it safe and specify a
> lower (armv6) CPU version to make sure that neon and the extra vfp registers
> don't get accidently used. I personally think that the answer is yes but I'm
> open to arguments.
Given that 3.0 is pretty old (~1.5 year) LLVM version you can do with
debian-provided version whatever you want. I doubt anyone cares here
now about that old version.

ARM (especially hardware FP) support is known to contain many problems
in that old version. The recent LLVM 3.2 release provides proper
hardware FP support out of the box.

cortex-a8 indeed by default implies full vfp and NEON. This seems to
be reasonable default for ARMv7.

--
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University



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