llvm-mirror/lib/VMCore/iSwitch.cpp
Chris Lattner 6f7587e4d3 Changed the fundemental architecture of Operands for Instructions. Now
Operands are maintained as a vector<Use> in the User class, and operator
iterators are provided as before.  Getting an operand no longer requires
a virtual function call.

WARNING: getOperand(x) where x >= getNumOperands() will now assert instead
of returning null!

llvm-svn: 149
2001-07-07 08:36:50 +00:00

34 lines
984 B
C++

//===-- iSwitch.cpp - Implement the Switch instruction -----------*- C++ -*--=//
//
// This file implements the Switch instruction...
//
//===----------------------------------------------------------------------===//
#include "llvm/iTerminators.h"
#include "llvm/BasicBlock.h"
#ifndef NDEBUG
#include "llvm/Type.h"
#endif
SwitchInst::SwitchInst(Value *V, BasicBlock *DefDest)
: TerminatorInst(Instruction::Switch) {
assert(V && DefDest);
Operands.push_back(Use(V, this));
Operands.push_back(Use(DefDest, this));
}
SwitchInst::SwitchInst(const SwitchInst &SI)
: TerminatorInst(Instruction::Switch) {
Operands.reserve(SI.Operands.size());
for (unsigned i = 0, E = SI.Operands.size(); i != E; i+=2) {
Operands.push_back(Use(SI.Operands[i], this));
Operands.push_back(Use(SI.Operands[i+1], this));
}
}
void SwitchInst::dest_push_back(ConstPoolVal *OnVal, BasicBlock *Dest) {
Operands.push_back(Use(OnVal, this));
Operands.push_back(Use(Dest, this));
}