[PATCH] D130832: [X86][BF16] Make backend type bf16 to follow the psABI

[Phoebe Wang via Phabricator via llvm-commits]

pengfei added inline comments.


================
Comment at: llvm/lib/Target/X86/X86ISelLowering.cpp:2440
+      VT.getVectorElementType() == MVT::bf16)
+    return TypeSoftenFloat;
+
----------------
craig.topper wrote:
> craig.topper wrote:
> > What does it mean to Soften a vector?
> It doesn't appear in the switch in TargetLoweringBase::computeRegisterProperties right after the call to getPreferredVectorAction
Good question. I think I tried this way but found it doesn't work currently and there're lots work to do to go this way. I must forget to delete it.


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  https://reviews.llvm.org/D130832/new/

https://reviews.llvm.org/D130832