getParent()->getInstList().erase(this);
}
+/// insertBefore - Insert an unlinked instructions into a basic block
+/// immediately before the specified instruction.
+void Instruction::insertBefore(Instruction *InsertPos) {
+ InsertPos->getParent()->getInstList().insert(InsertPos, this);
+}
+
+/// insertAfter - Insert an unlinked instructions into a basic block
+/// immediately after the specified instruction.
+void Instruction::insertAfter(Instruction *InsertPos) {
+ InsertPos->getParent()->getInstList().insertAfter(InsertPos, this);
+}
+
/// moveBefore - Unlink this instruction from its current basic block and
/// insert it into the basic block that MovePos lives in, right before
/// MovePos.
// Other instructions...
case ICmp: return "icmp";
case FCmp: return "fcmp";
+ case VICmp: return "vicmp";
+ case VFCmp: return "vfcmp";
case PHI: return "phi";
case Select: return "select";
case Call: return "call";
case ExtractElement: return "extractelement";
case InsertElement: return "insertelement";
case ShuffleVector: return "shufflevector";
+ case ExtractValue: return "extractvalue";
+ case InsertValue: return "insertvalue";
default: return "<Invalid operator> ";
}
/// isIdenticalTo - Return true if the specified instruction is exactly
/// identical to the current one. This means that all operands match and any
/// extra information (e.g. load is volatile) agree.
-bool Instruction::isIdenticalTo(Instruction *I) const {
+bool Instruction::isIdenticalTo(const Instruction *I) const {
if (getOpcode() != I->getOpcode() ||
getNumOperands() != I->getNumOperands() ||
getType() != I->getType())
// Check special state that is a part of some instructions.
if (const LoadInst *LI = dyn_cast<LoadInst>(this))
- return LI->isVolatile() == cast<LoadInst>(I)->isVolatile();
+ return LI->isVolatile() == cast<LoadInst>(I)->isVolatile() &&
+ LI->getAlignment() == cast<LoadInst>(I)->getAlignment();
if (const StoreInst *SI = dyn_cast<StoreInst>(this))
- return SI->isVolatile() == cast<StoreInst>(I)->isVolatile();
+ return SI->isVolatile() == cast<StoreInst>(I)->isVolatile() &&
+ SI->getAlignment() == cast<StoreInst>(I)->getAlignment();
if (const CmpInst *CI = dyn_cast<CmpInst>(this))
return CI->getPredicate() == cast<CmpInst>(I)->getPredicate();
if (const CallInst *CI = dyn_cast<CallInst>(this))
- return CI->isTailCall() == cast<CallInst>(I)->isTailCall();
+ return CI->isTailCall() == cast<CallInst>(I)->isTailCall() &&
+ CI->getCallingConv() == cast<CallInst>(I)->getCallingConv() &&
+ CI->getAttributes().getRawPointer() ==
+ cast<CallInst>(I)->getAttributes().getRawPointer();
+ if (const InvokeInst *CI = dyn_cast<InvokeInst>(this))
+ return CI->getCallingConv() == cast<InvokeInst>(I)->getCallingConv() &&
+ CI->getAttributes().getRawPointer() ==
+ cast<InvokeInst>(I)->getAttributes().getRawPointer();
+ if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(this)) {
+ if (IVI->getNumIndices() != cast<InsertValueInst>(I)->getNumIndices())
+ return false;
+ for (unsigned i = 0, e = IVI->getNumIndices(); i != e; ++i)
+ if (IVI->idx_begin()[i] != cast<InsertValueInst>(I)->idx_begin()[i])
+ return false;
+ return true;
+ }
+ if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(this)) {
+ if (EVI->getNumIndices() != cast<ExtractValueInst>(I)->getNumIndices())
+ return false;
+ for (unsigned i = 0, e = EVI->getNumIndices(); i != e; ++i)
+ if (EVI->idx_begin()[i] != cast<ExtractValueInst>(I)->idx_begin()[i])
+ return false;
+ return true;
+ }
+
return true;
}
// isSameOperationAs
-bool Instruction::isSameOperationAs(Instruction *I) const {
+bool Instruction::isSameOperationAs(const Instruction *I) const {
if (getOpcode() != I->getOpcode() || getType() != I->getType() ||
getNumOperands() != I->getNumOperands())
return false;
// Check special state that is a part of some instructions.
if (const LoadInst *LI = dyn_cast<LoadInst>(this))
- return LI->isVolatile() == cast<LoadInst>(I)->isVolatile();
+ return LI->isVolatile() == cast<LoadInst>(I)->isVolatile() &&
+ LI->getAlignment() == cast<LoadInst>(I)->getAlignment();
if (const StoreInst *SI = dyn_cast<StoreInst>(this))
- return SI->isVolatile() == cast<StoreInst>(I)->isVolatile();
+ return SI->isVolatile() == cast<StoreInst>(I)->isVolatile() &&
+ SI->getAlignment() == cast<StoreInst>(I)->getAlignment();
if (const CmpInst *CI = dyn_cast<CmpInst>(this))
return CI->getPredicate() == cast<CmpInst>(I)->getPredicate();
if (const CallInst *CI = dyn_cast<CallInst>(this))
- return CI->isTailCall() == cast<CallInst>(I)->isTailCall();
+ return CI->isTailCall() == cast<CallInst>(I)->isTailCall() &&
+ CI->getCallingConv() == cast<CallInst>(I)->getCallingConv() &&
+ CI->getAttributes().getRawPointer() ==
+ cast<CallInst>(I)->getAttributes().getRawPointer();
+ if (const InvokeInst *CI = dyn_cast<InvokeInst>(this))
+ return CI->getCallingConv() == cast<InvokeInst>(I)->getCallingConv() &&
+ CI->getAttributes().getRawPointer() ==
+ cast<InvokeInst>(I)->getAttributes().getRawPointer();
+ if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(this)) {
+ if (IVI->getNumIndices() != cast<InsertValueInst>(I)->getNumIndices())
+ return false;
+ for (unsigned i = 0, e = IVI->getNumIndices(); i != e; ++i)
+ if (IVI->idx_begin()[i] != cast<InsertValueInst>(I)->idx_begin()[i])
+ return false;
+ return true;
+ }
+ if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(this)) {
+ if (EVI->getNumIndices() != cast<ExtractValueInst>(I)->getNumIndices())
+ return false;
+ for (unsigned i = 0, e = EVI->getNumIndices(); i != e; ++i)
+ if (EVI->idx_begin()[i] != cast<ExtractValueInst>(I)->idx_begin()[i])
+ return false;
+ return true;
+ }
return true;
}
+/// isUsedOutsideOfBlock - Return true if there are any uses of I outside of the
+/// specified block. Note that PHI nodes are considered to evaluate their
+/// operands in the corresponding predecessor block.
+bool Instruction::isUsedOutsideOfBlock(const BasicBlock *BB) const {
+ for (use_const_iterator UI = use_begin(), E = use_end(); UI != E; ++UI) {
+ // PHI nodes uses values in the corresponding predecessor block. For other
+ // instructions, just check to see whether the parent of the use matches up.
+ const PHINode *PN = dyn_cast<PHINode>(*UI);
+ if (PN == 0) {
+ if (cast<Instruction>(*UI)->getParent() != BB)
+ return true;
+ continue;
+ }
+
+ if (PN->getIncomingBlock(UI) != BB)
+ return true;
+ }
+ return false;
+}
+
+/// mayReadFromMemory - Return true if this instruction may read memory.
+///
+bool Instruction::mayReadFromMemory() const {
+ switch (getOpcode()) {
+ default: return false;
+ case Instruction::Free:
+ case Instruction::VAArg:
+ case Instruction::Load:
+ return true;
+ case Instruction::Call:
+ return !cast<CallInst>(this)->doesNotAccessMemory();
+ case Instruction::Invoke:
+ return !cast<InvokeInst>(this)->doesNotAccessMemory();
+ case Instruction::Store:
+ return cast<StoreInst>(this)->isVolatile();
+ }
+}
+
/// mayWriteToMemory - Return true if this instruction may modify memory.
///
bool Instruction::mayWriteToMemory() const {
switch (getOpcode()) {
default: return false;
case Instruction::Free:
- case Instruction::Invoke:
case Instruction::Store:
case Instruction::VAArg:
return true;
case Instruction::Call:
return !cast<CallInst>(this)->onlyReadsMemory();
+ case Instruction::Invoke:
+ return !cast<InvokeInst>(this)->onlyReadsMemory();
case Instruction::Load:
return cast<LoadInst>(this)->isVolatile();
}
}
}
-/// isTrappingInstruction - Return true if the instruction may trap.
+/// isTrapping - Return true if the instruction may trap.
///
bool Instruction::isTrapping(unsigned op) {
switch(op) {
case Store:
case Call:
case Invoke:
+ case VAArg:
return true;
default:
return false;