[PATCH] D80344: [Windows SEH]: HARDWARE EXCEPTION HANDLING (MSVC -EHa) - Part 1

[Pengfei Wang via Phabricator via llvm-commits]

pengfei added a comment.

In D80344#2407305 <https://reviews.llvm.org/D80344#2407305>, @tentzen wrote:

> In D80344#2407250 <https://reviews.llvm.org/D80344#2407250>, @pengfei wrote:
>
>> Do we need to consider FP exceptions in _try block?
>
> Yes, FP exception is handled as long as FP exceptions are not disabled (Ex via _controlfp() runtime) and FP exception code is filtered & handled via ___except() statement (Ex, ___except(GetExceptionCode()==EXCEPTION_FLT_INEXACT_RESULT)).

I see. If this is the case, you may need to assign FPE_Strict to _try block to preserve FP instructions' order.


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