@rnk I tried building spec2000/eon for Windows ARM64 and ran into these
errors:
use of undeclared identifier '_interlockedbittestandset_acq'
use of undeclared identifier '_interlockedbittestandset_rel'
use of undeclared identifier '_interlockedbittestandset_nf'
I see that you have removed them in your patch. Apparently they are
needed (at least for ARM64 Win).
--Mandeep
On 6/5/2018 11:01 AM, Reid Kleckner via cfe-commits wrote:
On Tue, Jun 5, 2018 at 2:33 AM Martin Storsjö <mar...@martin.st
<mailto:mar...@martin.st>> wrote:
> // Many of MSVC builtins are on both x64 and ARM; to avoid
repeating code, we
> // handle them here.
This doesn't seem thought through wrt non-x86 architectures. I'm
not sure
if there's any similar suitable instruction to use on ARM/AArch64,
but we
should at the very least fall back to doing whatever we did before
this
change for anything not x86.
I'll go back and take a look, but I'm not convinced that what we did
before was correct for ARM either. I'm installing the Visual C++
aarch64 compiler now so I can make sure we get it right.
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