[PATCH] D118534: [X86] Update generic process model to x86-64-v3 to match with GCC

[Phoebe Wang via Phabricator via llvm-commits]

pengfei added a comment.

In D118534#3281634 <https://reviews.llvm.org/D118534#3281634>, @RKSimon wrote:

> Also, I'm slightly worried about this being dropped in just before the 14.x branch - would it be better to ensure we miss 14.x so this has time to cook in trunk for a while?

Sure, I can wait for 14.x freeze. Thanks!



================
Comment at: llvm/lib/Target/X86/X86.td:1491
+                [FeatureX87, FeatureCMPXCHG8B, Feature64Bit],
+                ProcessorFeatures.HSWTuning>;
+
----------------
RKSimon wrote:
> The old tuning flags didn't match all of SandyBridge's - do we really want to match all of Haswell's?
The GCC [[ https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html | doc ]] says `generic` will be updated with compiler iteration. I think it's reasonable since the common processors will be upgraded with time.


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  https://reviews.llvm.org/D118534/new/

https://reviews.llvm.org/D118534