X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FVMCore%2FInstruction.cpp;h=5ddf28435406b563a55e6b4ff141d3d44eb40c08;hb=e5828f1fa7c2691f747f5060ce11b8e55cea03ab;hp=b72656bdc232bee0490fc076ca063ae68b39f4c5;hpb=b576c94c15af9a440f69d9d03c2afead7971118c;p=oota-llvm.git

diff --git a/lib/VMCore/Instruction.cpp b/lib/VMCore/Instruction.cpp
index b72656bdc23..5ddf2843540 100644
--- a/lib/VMCore/Instruction.cpp
+++ b/lib/VMCore/Instruction.cpp
@@ -15,15 +15,20 @@
 #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) {
@@ -33,14 +38,26 @@ Instruction::Instruction(const Type *ty, unsigned it, const std::string &Name,
   }
 }
 
+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
@@ -96,6 +113,7 @@ const char *Instruction::getOpcodeName(unsigned OpCode) {
   // Other instructions...
   case PHI:     return "phi";
   case Cast:    return "cast";
+  case Select:  return "select";
   case Call:    return "call";
   case Shl:     return "shl";
   case Shr:     return "shr";
@@ -147,6 +165,22 @@ bool Instruction::isCommutative(unsigned op) {
   }
 }
 
+/// 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.
 ///