[PATCH] D130718: [compiler-rt] [builtins] Detect _Float16 support at compile time

Wed Nov 9 02:58:54 PST 2022

dim added a comment.

In D130718#3916780 <https://reviews.llvm.org/D130718#3916780>, @pengfei wrote:

> In D130718#3916720 <https://reviews.llvm.org/D130718#3916720>, @vitalybuka wrote:
>
>> What do we need to move forward with the patch?
>>
>> HEAD as-is is broken on Ubuntu 22.10
>> https://lab.llvm.org/buildbot/#/builders/169/builds/13450/steps/7/logs/stdio
>
> I noticed the bot is starting to fail 3 days ago, but the patch merged for months. Is there any recent change exposed the problem?
>
> As disscussed in https://discourse.llvm.org/t/how-to-build-compiler-rt-for-new-x86-half-float-abi/63366/25 the build of 32-bits using 64-bit config is the root cause. I think always turning on `SSE2` explicitly in the 64-bit config should be a feasible workaround.

I have another patch coming up, which I have been using for the 15.0.x test builds.

Repository:
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https://reviews.llvm.org/D130718