[MC] Make more use of MCInstrDesc::operands. NFC.

Change MCInstrDesc::operands to return an ArrayRef so we can easily use
it everywhere instead of the (IMHO ugly) opInfo_begin and opInfo_end.
A future patch will remove opInfo_begin and opInfo_end.

Also use it instead of raw access to the OpInfo pointer. A future patch
will remove this pointer.

Differential Revision: https://reviews.llvm.org/D142213

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index a8fdfa8..27564c8 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -1086,7 +1086,7 @@ int MachineInstr::findFirstPredOperandIdx() const {
   const MCInstrDesc &MCID = getDesc();
   if (MCID.isPredicable()) {
     for (unsigned i = 0, e = getNumOperands(); i != e; ++i)
-      if (MCID.OpInfo[i].isPredicate())
+      if (MCID.operands()[i].isPredicate())
         return i;
   }
 
@@ -1524,7 +1524,7 @@ LLT MachineInstr::getTypeToPrint(unsigned OpIdx, SmallBitVector &PrintedTypes,
   if (isVariadic() || OpIdx >= getNumExplicitOperands())
     return MRI.getType(Op.getReg());
 
-  auto &OpInfo = getDesc().OpInfo[OpIdx];
+  auto &OpInfo = getDesc().operands()[OpIdx];
   if (!OpInfo.isGenericType())
     return MRI.getType(Op.getReg());