[llvm] [DAG][X86]added shrd in combineor for bzhiq+shlq+or (PR #125734)

[Simon Pilgrim via llvm-commits]

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@@ -51887,6 +51887,35 @@ static SDValue combineOr(SDNode *N, SelectionDAG &DAG,
     }
   }
 
+  if (N0.getOpcode() == ISD::SHL || N1.getOpcode() == ISD::SHL){
+    SDValue SHL = (N0.getOpcode() == ISD::SHL) ? N0 : N1;
+    SDValue OtherOp = (N0.getOpcode() == ISD::SHL) ? N1 : N0;
+    
+    if (OtherOp.getOpcode() == ISD::AND) {
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RKSimon wrote:

(style) Fix variable capitalisation: ShiftValue / NumBits / NewShift / NewSHL

https://github.com/llvm/llvm-project/pull/125734