[aarch64-port-dev ] RFR(L): 8231441: AArch64: Initial SVE backend support

Andrew Haley aph at redhat.com
Thu Aug 20 08:53:52 UTC 2020

On 20/08/2020 05:48, Nick Gasson wrote:
> On 08/19/20 19:10 pm, Andrew Haley wrote:
>> On 19/08/2020 11:05, Magnus Ihse Bursie wrote:
>>> This is maybe not relevant, but I was surprised to find
>>> src/hotspot/cpu/aarch64/aarch64-asmtest.py, because a) it's python code,
>>> and b) the name implies that it is a test, even though that it resides
>>> in src. Is this really proper?
>> I have no idea whether it's really proper, but it allows us to check
>> that instructions are encoded correctly by cross-checking with the
>> system's assembler. There might well be a more hygienic way to do
>> that, but I don't want to be without it.
> It is perhaps a bit strange to have the test code under src/ and
> embedded in the assembler implementation. How about we move it under
> test/ using the existing gtest framework for native code tests? That
> runs in tier1 and also for release builds. I tried this just now and
> it's easy to do.

Go on, then!

Bear in mind that the idea of this test is that it checks the encoding
of all instructions, regardless of whether the processor supports them
or not.

Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671

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