//===-- Instruction.cpp - Implement the Instruction class -----------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This file implements the Instruction class for the VMCore library.
//
#include "llvm/SymbolTable.h"
#include "llvm/Type.h"
#include "Support/LeakDetector.h"
+using namespace llvm;
-Instruction::Instruction(const Type *ty, unsigned it, const std::string &Name,
- Instruction *InsertBefore)
- : User(ty, Value::InstructionVal, Name) {
- Parent = 0;
- iType = it;
-
+void Instruction::init()
+{
// Make sure that we get added to a basicblock
LeakDetector::addGarbageObject(this);
+}
+
+Instruction::Instruction(const Type *ty, unsigned it, const std::string &Name,
+ Instruction *InsertBefore)
+ : User(ty, Value::InstructionVal, Name),
+ Parent(0),
+ iType(it) {
+ init();
// If requested, insert this instruction into a basic block...
if (InsertBefore) {
}
}
+Instruction::Instruction(const Type *ty, unsigned it, const std::string &Name,
+ BasicBlock *InsertAtEnd)
+ : User(ty, Value::InstructionVal, Name),
+ Parent(0),
+ iType(it) {
+ init();
+
+ // append this instruction into the basic block
+ assert(InsertAtEnd && "Basic block to append to may not be NULL!");
+ InsertAtEnd->getInstList().push_back(this);
+}
+
void Instruction::setParent(BasicBlock *P) {
- if (getParent())
- LeakDetector::addGarbageObject(this);
+ if (getParent()) {
+ if (!P) LeakDetector::addGarbageObject(this);
+ } else {
+ if (P) LeakDetector::removeGarbageObject(this);
+ }
Parent = P;
-
- if (getParent())
- LeakDetector::removeGarbageObject(this);
}
// Specialize setName to take care of symbol table majik
case GetElementPtr: return "getelementptr";
// Other instructions...
- case PHINode: return "phi";
+ case PHI: return "phi";
case Cast: return "cast";
+ case Select: return "select";
case Call: return "call";
case Shl: return "shl";
case Shr: return "shr";
- case VarArg: return "va_arg";
+ case VANext: return "vanext";
+ case VAArg: return "vaarg";
default: return "<Invalid operator> ";
}
}
}
+/// isRelational - Return true if the instruction is a Set* instruction:
+///
+bool Instruction::isRelational(unsigned op) {
+ switch (op) {
+ case SetEQ:
+ case SetNE:
+ case SetLT:
+ case SetGT:
+ case SetLE:
+ case SetGE:
+ return true;
+ }
+ return false;
+}
+
+
/// isTrappingInstruction - Return true if the instruction may trap.
///