[PATCH] D98487: [AArch64][SVE/NEON] Add support for FROUNDEVEN for both NEON and fixed length SVE

[Dave Green via Phabricator via cfe-commits]

dmgreen added inline comments.


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Comment at: llvm/include/llvm/Target/TargetSelectionDAG.td:158
 ]>;
+def SDTFPRoundEvenOp  : SDTypeProfile<1, 1, [   // froundeven
+  SDTCisFP<0>, SDTCisFP<1>, SDTCisOpSmallerThanOp<0, 1>, SDTCisSameNumEltsAs<0, 1>
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bsmith wrote:
> dmgreen wrote:
> > Is this used? The one above should maybe say `// fpround`?
> No it's not, I added it for consistency, but perhaps I shouldn't? I think fround is correct for the one above, or at least is consistent with the others in this file, for example fextend below.
It's used below in `def fpround    : SDNode<"ISD::FP_ROUND"   , SDTFPRoundOp>;`, so it looks like its used with the fptrunc instruction, not the fround intrinsic.

I see your point about fextend... I would say they should both be changed to fpextend/fpround, for consistency with the nodes they act upon.


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https://reviews.llvm.org/D98487