sdisel flag -> glue.

[oota-llvm.git] / lib / VMCore / Globals.cpp

diff --git a/lib/VMCore/Globals.cpp b/lib/VMCore/Globals.cpp
index 5c05308eaab56328eb43a583a87b784b6a549c71..96716eeb349b9434264d325af7ca89d3c445458d 100644 (file)
--- a/lib/VMCore/Globals.cpp
+++ b/lib/VMCore/Globals.cpp
@@ -16,12 +16,10 @@
 #include "llvm/GlobalVariable.h"
 #include "llvm/GlobalAlias.h"
 #include "llvm/DerivedTypes.h"
-#include "llvm/LLVMContext.h"
 #include "llvm/Module.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/LeakDetector.h"
-#include "llvm/Support/Streams.h"
 using namespace llvm;
 
 //===----------------------------------------------------------------------===//
@@ -45,13 +43,26 @@ static bool removeDeadUsersOfConstant(const Constant *C) {
   return true;
 }
 
+bool GlobalValue::isMaterializable() const {
+  return getParent() && getParent()->isMaterializable(this);
+}
+bool GlobalValue::isDematerializable() const {
+  return getParent() && getParent()->isDematerializable(this);
+}
+bool GlobalValue::Materialize(std::string *ErrInfo) {
+  return getParent()->Materialize(this, ErrInfo);
+}
+void GlobalValue::Dematerialize() {
+  getParent()->Dematerialize(this);
+}
+
 /// removeDeadConstantUsers - If there are any dead constant users dangling
 /// off of this global value, remove them.  This method is useful for clients
 /// that want to check to see if a global is unused, but don't want to deal
 /// with potentially dead constants hanging off of the globals.
 void GlobalValue::removeDeadConstantUsers() const {
-  Value::use_const_iterator I = use_begin(), E = use_end();
-  Value::use_const_iterator LastNonDeadUser = E;
+  Value::const_use_iterator I = use_begin(), E = use_end();
+  Value::const_use_iterator LastNonDeadUser = E;
   while (I != E) {
     if (const Constant *User = dyn_cast<Constant>(*I)) {
       if (!removeDeadUsersOfConstant(User)) {
@@ -76,6 +87,7 @@ void GlobalValue::removeDeadConstantUsers() const {
   }
 }
 
+
 /// Override destroyConstant to make sure it doesn't get called on
 /// GlobalValue's because they shouldn't be treated like other constants.
 void GlobalValue::destroyConstant() {
@@ -90,16 +102,22 @@ void GlobalValue::copyAttributesFrom(const GlobalValue *Src) {
   setVisibility(Src->getVisibility());
 }
 
-
+void GlobalValue::setAlignment(unsigned Align) {
+  assert((Align & (Align-1)) == 0 && "Alignment is not a power of 2!");
+  assert(Align <= MaximumAlignment &&
+         "Alignment is greater than MaximumAlignment!");
+  Alignment = Log2_32(Align) + 1;
+  assert(getAlignment() == Align && "Alignment representation error!");
+}
+  
 //===----------------------------------------------------------------------===//
 // GlobalVariable Implementation
 //===----------------------------------------------------------------------===//
 
-GlobalVariable::GlobalVariable(LLVMContext &Context, const Type *Ty,
-                               bool constant, LinkageTypes Link,
-                               Constant *InitVal, const std::string &Name,
+GlobalVariable::GlobalVariable(const Type *Ty, bool constant, LinkageTypes Link,
+                               Constant *InitVal, const Twine &Name,
                                bool ThreadLocal, unsigned AddressSpace)
-  : GlobalValue(Context.getPointerType(Ty, AddressSpace), 
+  : GlobalValue(PointerType::get(Ty, AddressSpace), 
                 Value::GlobalVariableVal,
                 OperandTraits<GlobalVariable>::op_begin(this),
                 InitVal != 0, Link, Name),
@@ -115,10 +133,10 @@ GlobalVariable::GlobalVariable(LLVMContext &Context, const Type *Ty,
 
 GlobalVariable::GlobalVariable(Module &M, const Type *Ty, bool constant,
                                LinkageTypes Link, Constant *InitVal,
-                               const std::string &Name,
+                               const Twine &Name,
                                GlobalVariable *Before, bool ThreadLocal,
                                unsigned AddressSpace)
-  : GlobalValue(M.getContext().getPointerType(Ty, AddressSpace), 
+  : GlobalValue(PointerType::get(Ty, AddressSpace), 
                 Value::GlobalVariableVal,
                 OperandTraits<GlobalVariable>::op_begin(this),
                 InitVal != 0, Link, Name),
@@ -173,6 +191,21 @@ void GlobalVariable::replaceUsesOfWithOnConstant(Value *From, Value *To,
   this->setOperand(0, cast<Constant>(To));
 }
 
+void GlobalVariable::setInitializer(Constant *InitVal) {
+  if (InitVal == 0) {
+    if (hasInitializer()) {
+      Op<0>().set(0);
+      NumOperands = 0;
+    }
+  } else {
+    assert(InitVal->getType() == getType()->getElementType() &&
+           "Initializer type must match GlobalVariable type");
+    if (!hasInitializer())
+      NumOperands = 1;
+    Op<0>().set(InitVal);
+  }
+}
+
 /// copyAttributesFrom - copy all additional attributes (those not needed to
 /// create a GlobalVariable) from the GlobalVariable Src to this one.
 void GlobalVariable::copyAttributesFrom(const GlobalValue *Src) {
@@ -188,7 +221,7 @@ void GlobalVariable::copyAttributesFrom(const GlobalValue *Src) {
 //===----------------------------------------------------------------------===//
 
 GlobalAlias::GlobalAlias(const Type *Ty, LinkageTypes Link,
-                         const std::string &Name, Constant* aliasee,
+                         const Twine &Name, Constant* aliasee,
                          Module *ParentModule)
   : GlobalValue(Ty, Value::GlobalAliasVal, &Op<0>(), 1, Link, Name) {
   LeakDetector::addGarbageObject(this);