Allow machine instructions with variable numbers of arguments.
This is used only by Phi for now.
llvm-svn: 336
diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index 64fcaa0..d3e468c 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -19,13 +19,24 @@
//************************ Class Implementations **************************/
-
+// Constructor for instructions with fixed #operands (nearly all)
MachineInstr::MachineInstr(MachineOpCode _opCode,
OpCodeMask _opCodeMask)
: opCode(_opCode),
opCodeMask(_opCodeMask),
operands(TargetInstrDescriptors[_opCode].numOperands)
{
+ assert(TargetInstrDescriptors[_opCode].numOperands >= 0);
+}
+
+// Constructor for instructions with variable #operands
+MachineInstr::MachineInstr(MachineOpCode _opCode,
+ unsigned numOperands,
+ OpCodeMask _opCodeMask)
+ : opCode(_opCode),
+ opCodeMask(_opCodeMask),
+ operands(numOperands)
+{
}
void