[llvm] [X86][SelectionDAG] - Add support for llvm.canonicalize intrinsic (PR #106370)

[Phoebe Wang via llvm-commits]

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@@ -1980,6 +1980,16 @@ SDValue DAGCombiner::visit(SDNode *N) {
   case ISD::FREEZE:             return visitFREEZE(N);
   case ISD::GET_FPENV_MEM:      return visitGET_FPENV_MEM(N);
   case ISD::SET_FPENV_MEM:      return visitSET_FPENV_MEM(N);
+  case ISD::FCANONICALIZE:{
+    SDValue Operand = N->getOperand(0);
+    EVT VT = Operand.getValueType();
+    SDLoc dl(N);
+    if(Operand.isUndef()){
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phoebewang wrote:

Space

https://github.com/llvm/llvm-project/pull/106370