[llvm] [ARM][MVE] Invalid tail predication in LowOverheadLoop pass (PR #163217)

[Sam Parker via llvm-commits]

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@@ -805,6 +805,16 @@ int llvm::findFirstVPTPredOperandIdx(const MachineInstr &MI) {
   return -1;
 }
 
+int llvm::findVPTInactiveOperandIdx(const MachineInstr &MI) {
+  const MCInstrDesc &MCID = MI.getDesc();
+
+  for (unsigned i = 0, e = MCID.getNumOperands(); i != e; ++i)
+    if (MCID.operands()[i].OperandType == ARM::OPERAND_VPRED_R)
+      return i + 3;
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sparker-arm wrote:

Okay, cheers, this seems good enough to me.

https://github.com/llvm/llvm-project/pull/163217