[llvm] [NFC][LLVM] Refactor rounding mode detection of constrained fp intrinsic IDs (PR #90854)

[Thorsten Schütt via llvm-commits]

================
@@ -7962,16 +7962,8 @@ void SelectionDAGBuilder::visitConstrainedFPIntrinsic(
   SDValue Chain = DAG.getRoot();
   SmallVector<SDValue, 4> Opers;
   Opers.push_back(Chain);
-  if (FPI.isUnaryOp()) {
-    Opers.push_back(getValue(FPI.getArgOperand(0)));
-  } else if (FPI.isTernaryOp()) {
-    Opers.push_back(getValue(FPI.getArgOperand(0)));
-    Opers.push_back(getValue(FPI.getArgOperand(1)));
-    Opers.push_back(getValue(FPI.getArgOperand(2)));
-  } else {
-    Opers.push_back(getValue(FPI.getArgOperand(0)));
-    Opers.push_back(getValue(FPI.getArgOperand(1)));
-  }
+  for (unsigned i = 0, e = FPI.getNonMetadataArgCount(); i != e; ++i)
----------------
tschuett wrote:

same

https://github.com/llvm/llvm-project/pull/90854