[PATCH] D130492: [AArch64][SVE] Add patterns to select mla/mls

[Paul Walker via Phabricator via llvm-commits]

paulwalker-arm added inline comments.


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Comment at: llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td:350
+                            [(int_aarch64_sve_mla node:$pred, node:$op1, node:$op2, node:$op3),
+                             (add node:$op1, (AArch64mul_p_oneuse node:$pred, node:$op2, node:$op3)),
+                             // add(a, select(mask, mul(b, c), splat(0))) -> mla(a, mask, b, c)
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paulwalker-arm wrote:
> FYI: This is consistent with how the code works today but I suspect we'll eventually pull this pattern out because it should really map to the `FMLA_ZPZZZ_UNDEF` pseudo instructions.
`s/FMLA_ZPZZZ_UNDEF/MLA_ZPZZZ_UNDEF`

NOTE: These don't exist today.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D130492/new/

https://reviews.llvm.org/D130492