[llvm] [X86][GlobalISel] - Legalize And Select of G_FPTOSI/G_SITOFP in X87 mode (PR #137377)

[Evgenii Kudriashov via llvm-commits]

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@@ -871,21 +871,21 @@ def X86fp_to_i16mem : PatFrag<(ops node:$val, node:$ptr),
                               (X86fp_to_mem node:$val, node:$ptr), [{
   return cast<MemIntrinsicSDNode>(N)->getMemoryVT() == MVT::i16;
 }]> {
-  let GISelPredicateCode = [{ return checkMemoryOpSize(MI, 2); }];
+  let GISelPredicateCode = [{ return checkMemoryOpSize(MI, LLT::scalar(16)); }];
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e-kud wrote:

Hi @arsenm, I don't get the idea. Do you suggest to specify the type of `$val` and get rid of predicate for both SDAG and GISEL? I've tried to find examples of `PatFrag` using its memory fields but was unsuccessful.
Otherwise GlobalISel will always try to find its own version of predicate regardless of SDAG implementation.

https://github.com/llvm/llvm-project/pull/137377