[llvm] [X86] Recognise VPMADD52L pattern with AVX512IFMA/AVXIFMA (#153787) (PR #156714)

[Simon Pilgrim via llvm-commits]

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@@ -4461,6 +4462,7 @@ SDValue SplitOpsAndApply(SelectionDAG &DAG, const X86Subtarget &Subtarget,
   unsigned NumSubs = 1;
   if ((CheckBWI && Subtarget.useBWIRegs()) ||
       (!CheckBWI && Subtarget.useAVX512Regs())) {
+    // if (0) {
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RKSimon wrote:

remove this

https://github.com/llvm/llvm-project/pull/156714