[llvm] [AArch64][llvm] Allow FPRCVT insns to run in streaming mode if safe (PR #175544)

[Jonathan Thackray via llvm-commits]

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@@ -20325,6 +20325,9 @@ tryToReplaceScalarFPConversionWithSVE(SDNode *N, SelectionDAG &DAG,
   if (DCI.isBeforeLegalizeOps())
     return SDValue();
 
+  if (Subtarget->isStreaming() && Subtarget->hasFPRCVT())
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jthackray wrote:

I chatted to Carol about this, and she thought not. I've moved this PR to a new PR https://github.com/llvm/llvm-project/pull/177334/ to allow for pre-commit tests.

https://github.com/llvm/llvm-project/pull/175544