[PATCH] D149445: [MachineInst] Switch NumOperands to 16bits

[Dávid Bolvanský via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG20831c3c2385: [MachineInst] Switch NumOperands to 16bits (authored by xbolva00).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149445/new/

https://reviews.llvm.org/D149445

Files:
  llvm/include/llvm/CodeGen/MachineInstr.h
  llvm/lib/CodeGen/MachineInstr.cpp


Index: llvm/lib/CodeGen/MachineInstr.cpp
===================================================================
--- llvm/lib/CodeGen/MachineInstr.cpp
+++ llvm/lib/CodeGen/MachineInstr.cpp
@@ -192,6 +192,7 @@
 /// an explicit operand it is added at the end of the explicit operand list
 /// (before the first implicit operand).
 void MachineInstr::addOperand(MachineFunction &MF, const MachineOperand &Op) {
+  assert(NumOperands < USHRT_MAX && "Cannot add more operands.");
   assert(MCID && "Cannot add operands before providing an instr descriptor");
 
   // Check if we're adding one of our existing operands.
Index: llvm/include/llvm/CodeGen/MachineInstr.h
===================================================================
--- llvm/include/llvm/CodeGen/MachineInstr.h
+++ llvm/include/llvm/CodeGen/MachineInstr.h
@@ -120,7 +120,7 @@
 
   // Operands are allocated by an ArrayRecycler.
   MachineOperand *Operands = nullptr;   // Pointer to the first operand.
-  unsigned NumOperands = 0;             // Number of operands on instruction.
+  uint16_t NumOperands = 0;             // Number of operands on instruction.
 
   uint16_t Flags = 0;                   // Various bits of additional
                                         // information about machine


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