Build fix for the latest LLVMContext changes (LLVM r75445)

This shouldn't break the build with older LLVM revs. We include
LLVMContext.h in gen/llvm.h now to make the transition a little bit
easier.

gen/aa.cpp

@@ -105,7 +105,7 @@ DValue* DtoAAIndex(Loc& loc, Type* type, DValue* aa, DValue* key, bool lvalue)
         llvm::BasicBlock* failbb = llvm::BasicBlock::Create("aaboundscheckfail", gIR->topfunc(), oldend);
         llvm::BasicBlock* okbb = llvm::BasicBlock::Create("aaboundsok", gIR->topfunc(), oldend);
 
-        LLValue* nullaa = LLConstant::getNullValue(ret->getType());
+        LLValue* nullaa = llvm::getGlobalContext().getNullValue(ret->getType());
         LLValue* cond = gIR->ir->CreateICmpNE(nullaa, ret, "aaboundscheck");
         gIR->ir->CreateCondBr(cond, okbb, failbb);
 

gen/arrays.cpp

@@ -60,7 +60,7 @@ void DtoSetArrayToNull(LLValue* v)
     assert(isaPointer(v));
     const LLType* t = v->getType()->getContainedType(0);
 
-    DtoStore(LLConstant::getNullValue(t), v);
+    DtoStore(llvm::getGlobalContext().getNullValue(t), v);
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////

gen/classes.cpp

@@ -211,7 +211,7 @@ void DtoInitClass(TypeClass* tc, LLValue* dst)
 
     // monitor always defaults to zero
     tmp = DtoGEPi(dst,0,1,"monitor");
-    val = llvm::Constant::getNullValue(tmp->getType()->getContainedType(0));
+    val = llvm::getGlobalContext().getNullValue(tmp->getType()->getContainedType(0));
     DtoStore(val, tmp);
 
     // done?
@@ -262,7 +262,7 @@ DValue* DtoCastClass(DValue* val, Type* _to)
     else if (to->ty == Tbool) {
         IF_LOG Logger::println("to bool");
         LLValue* llval = val->getRVal();
-        LLValue* zero = LLConstant::getNullValue(llval->getType());
+        LLValue* zero = llvm::getGlobalContext().getNullValue(llval->getType());
         return new DImValue(_to, gIR->ir->CreateICmpNE(llval, zero, "tmp"));
     }
     // class -> integer
@@ -326,8 +326,8 @@ DValue* DtoCastClass(DValue* val, Type* _to)
             // Sure we could have jumped over the code above in this case, but
             // it's just a GEP and (maybe) a pointer-to-pointer BitCast, so it
             // should be pretty cheap and perfectly safe even if the original was null.
-            LLValue* isNull = gIR->ir->CreateICmpEQ(orig, LLConstant::getNullValue(orig->getType()), ".nullcheck");
+            LLValue* isNull = gIR->ir->CreateICmpEQ(orig, llvm::getGlobalContext().getNullValue(orig->getType()), ".nullcheck");
-            v = gIR->ir->CreateSelect(isNull, LLConstant::getNullValue(ifType), v, ".interface");
+            v = gIR->ir->CreateSelect(isNull, llvm::getGlobalContext().getNullValue(ifType), v, ".interface");
 
             // return r-value
             return new DImValue(_to, v);
@@ -602,7 +602,7 @@ static LLConstant* build_offti_array(ClassDeclaration* cd, const LLType* arrayT)
     LLConstant* ptr;
 
     if (nvars == 0)
-        return LLConstant::getNullValue( arrayT );
+        return llvm::getGlobalContext().getNullValue( arrayT );
 
     // array type
     const llvm::ArrayType* arrTy = llvm::ArrayType::get(arrayInits[0]->getType(), nvars);

gen/complex.cpp

@@ -111,9 +111,9 @@ DValue* DtoComplex(Loc& loc, Type* to, DValue* val)
     DtoGetComplexParts(loc, to, val, re, im);
 
     if(!re)
-        re = LLConstant::getNullValue(DtoType(baserety));
+        re = llvm::getGlobalContext().getNullValue(DtoType(baserety));
     if(!im)
-        im = LLConstant::getNullValue(DtoType(baseimty));
+        im = llvm::getGlobalContext().getNullValue(DtoType(baseimty));
 
     LLValue* res = DtoAggrPair(complexTy, re, im);
 

gen/functions.cpp

@@ -811,7 +811,7 @@ void DtoDefineFunction(FuncDeclaration* fd)
             }
         }
         else
-            llvm::ReturnInst::Create(llvm::Constant::getNullValue(func->getReturnType()), bb);
+            llvm::ReturnInst::Create(llvm::getGlobalContext().getNullValue(func->getReturnType()), bb);
     }
 
 //     std::cout << *func << std::endl;

gen/llvm.h

@@ -11,6 +11,7 @@
 #include "llvm/Module.h"
 #include "llvm/Value.h"
 #include "llvm/Attributes.h"
+#include "llvm/LLVMContext.h"
 
 #include "llvm/Target/TargetData.h"
 

gen/llvmhelpers.cpp

@@ -464,13 +464,13 @@ DValue* DtoNullValue(Type* type)
     if (basetype->iscomplex())
     {
         const LLType* basefp = DtoComplexBaseType(basetype);
-        LLValue* res = DtoAggrPair(DtoType(type), LLConstant::getNullValue(basefp), LLConstant::getNullValue(basefp));
+        LLValue* res = DtoAggrPair(DtoType(type), llvm::getGlobalContext().getNullValue(basefp), llvm::getGlobalContext().getNullValue(basefp));
         return new DImValue(type, res);
     }
     // integer, floating, pointer and class have no special representation
     else if (basetype->isintegral() || basetype->isfloating() || basety == Tpointer || basety == Tclass)
     {
-        return new DConstValue(type, LLConstant::getNullValue(lltype));
+        return new DConstValue(type, llvm::getGlobalContext().getNullValue(lltype));
     }
     // dynamic array
     else if (basety == Tarray)
@@ -482,7 +482,7 @@ DValue* DtoNullValue(Type* type)
     // delegate
     else if (basety == Tdelegate)
     {
-        return new DNullValue(type, LLConstant::getNullValue(lltype));
+        return new DNullValue(type, llvm::getGlobalContext().getNullValue(lltype));
     }
 
     // unknown
@@ -577,7 +577,7 @@ DValue* DtoCastPtr(Loc& loc, DValue* val, Type* to)
     }
     else if (totype->ty == Tbool) {
         LLValue* src = val->getRVal();
-        LLValue* zero = LLConstant::getNullValue(src->getType());
+        LLValue* zero = llvm::getGlobalContext().getNullValue(src->getType());
         rval = gIR->ir->CreateICmpNE(src, zero, "tmp");
     }
     else if (totype->isintegral()) {
@@ -609,7 +609,7 @@ DValue* DtoCastFloat(Loc& loc, DValue* val, Type* to)
 
     if (totype->ty == Tbool) {
         rval = val->getRVal();
-        LLValue* zero = LLConstant::getNullValue(rval->getType());
+        LLValue* zero = llvm::getGlobalContext().getNullValue(rval->getType());
         rval = gIR->ir->CreateFCmpUNE(rval, zero, "tmp");
     }
     else if (totype->iscomplex()) {
@@ -1124,7 +1124,7 @@ LLConstant* DtoConstInitializer(Loc loc, Type* type, Initializer* init)
     {
         Logger::println("const void initializer");
         const LLType* ty = DtoType(type);
-        _init = llvm::Constant::getNullValue(ty);
+        _init = llvm::getGlobalContext().getNullValue(ty);
     }
     else {
         Logger::println("unsupported const initializer: %s", init->toChars());

gen/main.cpp

@@ -7,7 +7,6 @@
 #include "gen/llvm-version.h"
 #include "llvm/LinkAllVMCore.h"
 #include "llvm/Linker.h"
-#include "llvm/LLVMContext.h"
 #include "llvm/System/Signals.h"
 #include "llvm/Target/SubtargetFeature.h"
 #include "llvm/Target/TargetMachine.h"

gen/runtime.cpp

@@ -1,6 +1,5 @@
 #include "gen/llvm.h"
 #include "gen/llvm-version.h"
-#include "llvm/LLVMContext.h"
 #include "llvm/Module.h"
 #include "llvm/Attributes.h"
 #include "llvm/Bitcode/ReaderWriter.h"

gen/statements.cpp

@@ -114,7 +114,7 @@ void ReturnStatement::toIR(IRState* p)
                 // and return 0 instead
                 // if we're not in main, just bitcast
                 if (p->topfunc() == p->mainFunc)
-                    v = llvm::Constant::getNullValue(p->mainFunc->getReturnType());
+                    v = llvm::getGlobalContext().getNullValue(p->mainFunc->getReturnType());
                 else
                     v = gIR->ir->CreateBitCast(v, p->topfunc()->getReturnType(), "tmp");
 
@@ -1380,7 +1380,7 @@ void WithStatement::toIR(IRState* p)
 static LLConstant* generate_unique_critical_section()
 {
     const LLType* Mty = DtoMutexType();
-    return new llvm::GlobalVariable(*gIR->module, Mty, false, llvm::GlobalValue::InternalLinkage, LLConstant::getNullValue(Mty), ".uniqueCS");
+    return new llvm::GlobalVariable(*gIR->module, Mty, false, llvm::GlobalValue::InternalLinkage, llvm::getGlobalContext().getNullValue(Mty), ".uniqueCS");
 }
 
 void SynchronizedStatement::toIR(IRState* p)

gen/structs.cpp

@@ -162,22 +162,22 @@ size_t add_zeros(std::vector<llvm::Value*>& values, size_t diff)
     {
         if (is64 && diff % 8 == 0)
         {
-            values.push_back(llvm::Constant::getNullValue(llvm::Type::Int64Ty));
+            values.push_back(llvm::getGlobalContext().getNullValue(llvm::Type::Int64Ty));
             diff -= 8;
         }
         else if (diff % 4 == 0)
         {
-            values.push_back(llvm::Constant::getNullValue(llvm::Type::Int32Ty));
+            values.push_back(llvm::getGlobalContext().getNullValue(llvm::Type::Int32Ty));
             diff -= 4;
         }
         else if (diff % 2 == 0)
         {
-            values.push_back(llvm::Constant::getNullValue(llvm::Type::Int16Ty));
+            values.push_back(llvm::getGlobalContext().getNullValue(llvm::Type::Int16Ty));
             diff -= 2;
         }
         else
         {
-            values.push_back(llvm::Constant::getNullValue(llvm::Type::Int8Ty));
+            values.push_back(llvm::getGlobalContext().getNullValue(llvm::Type::Int8Ty));
             diff -= 1;
         }
     }

gen/todebug.cpp

@@ -19,7 +19,7 @@
 
 using namespace llvm::dwarf;
 
-#define DBG_NULL    ( LLConstant::getNullValue(DBG_TYPE) )
+#define DBG_NULL    ( llvm::getGlobalContext().getNullValue(DBG_TYPE) )
 #define DBG_TYPE    ( getPtrToType(llvm::StructType::get(NULL,NULL)) )
 #define DBG_CAST(X) ( llvm::ConstantExpr::getBitCast(X, DBG_TYPE) )
 
@@ -297,7 +297,7 @@ static llvm::DICompositeType dwarfCompositeType(Type* type, llvm::DICompileUnit
         std::vector<LLConstant*> initvals(11);
         initvals[0] = DBG_TAG(DW_TAG_structure_type);
         for (int i = 1; i < initvals.size(); ++i)
-            initvals[i] = LLConstant::getNullValue(getDwarfCompositeTypeType()->getContainedType(i));
+            initvals[i] = llvm::getGlobalContext().getNullValue(getDwarfCompositeTypeType()->getContainedType(i));
         gv->setInitializer(LLConstantStruct::get(getDwarfCompositeTypeType(), initvals));
         ir->diCompositeType = llvm::DICompositeType(gv);
 

gen/toir.cpp

@@ -341,7 +341,7 @@ LLConstant* NullExp::toConstElem(IRState* p)
         return llvm::ConstantAggregateZero::get(t);
     }
     else {
-        return llvm::Constant::getNullValue(t);
+        return llvm::getGlobalContext().getNullValue(t);
     }
     assert(0);
     return NULL;
@@ -1656,7 +1656,7 @@ DValue* DeleteExp::toElem(IRState* p)
         LLValue* rval = dval->getRVal();
         DtoDeleteMemory(rval);
         if (dval->isVar())
-            DtoStore(llvm::Constant::getNullValue(rval->getType()), dval->getLVal());
+            DtoStore(llvm::getGlobalContext().getNullValue(rval->getType()), dval->getLVal());
     }
     // class
     else if (et->ty == Tclass)
@@ -1680,7 +1680,7 @@ DValue* DeleteExp::toElem(IRState* p)
         }
         if (dval->isVar()) {
             LLValue* lval = dval->getLVal();
-            DtoStore(llvm::Constant::getNullValue(lval->getType()->getContainedType(0)), lval);
+            DtoStore(llvm::getGlobalContext().getNullValue(lval->getType()->getContainedType(0)), lval);
         }
     }
     // dyn array
@@ -2547,7 +2547,7 @@ DValue* AssocArrayLiteralExp::toElem(IRState* p)
     // it should be possible to avoid the temporary in some cases
     LLValue* tmp = DtoAlloca(type,"aaliteral");
     DValue* aa = new DVarValue(type, tmp);
-    DtoStore(LLConstant::getNullValue(DtoType(type)), tmp);
+    DtoStore(llvm::getGlobalContext().getNullValue(DtoType(type)), tmp);
 
     const size_t n = keys->dim;
     for (size_t i=0; i<n; ++i)

gen/tollvm.cpp

@@ -213,7 +213,7 @@ LLValue* DtoDelegateEquals(TOK op, LLValue* lhs, LLValue* rhs)
     llvm::Value *b1, *b2;
     if (rhs == NULL)
     {
-        rhs = LLConstant::getNullValue(lhs->getType());
+        rhs = llvm::getGlobalContext().getNullValue(lhs->getType());
     }
 
     LLValue* l = gIR->ir->CreateExtractValue(lhs, 0);
@@ -741,7 +741,7 @@ llvm::ConstantPointerNull* getNullPtr(const LLType* t)
 
 LLConstant* getNullValue(const LLType* t)
 {
-    return LLConstant::getNullValue(t);
+    return llvm::getGlobalContext().getNullValue(t);
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////

gen/toobj.cpp

@@ -14,7 +14,6 @@
 #include "gen/llvm-version.h"
 #include "llvm/Analysis/Verifier.h"
 #include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/LLVMContext.h"
 #include "llvm/Module.h"
 #include "llvm/ModuleProvider.h"
 #include "llvm/PassManager.h"
@@ -555,7 +554,7 @@ static LLFunction* build_module_reference_and_ctor(LLConstant* moduleinfo)
     // provide the default initializer
     const LLStructType* modulerefTy = DtoModuleReferenceType();
     std::vector<LLConstant*> mrefvalues;
-    mrefvalues.push_back(LLConstant::getNullValue(modulerefTy->getContainedType(0)));
+    mrefvalues.push_back(llvm::getGlobalContext().getNullValue(modulerefTy->getContainedType(0)));
     mrefvalues.push_back(llvm::ConstantExpr::getBitCast(moduleinfo, modulerefTy->getContainedType(1)));
     LLConstant* thismrefinit = LLConstantStruct::get(modulerefTy, mrefvalues);
 

ir/irstruct.cpp

@@ -117,22 +117,22 @@ size_t add_zeros(std::vector<llvm::Constant*>& constants, size_t diff)
     {
         if (global.params.is64bit && diff % 8 == 0)
         {
-            constants.push_back(llvm::Constant::getNullValue(llvm::Type::Int64Ty));
+            constants.push_back(llvm::getGlobalContext().getNullValue(llvm::Type::Int64Ty));
             diff -= 8;
         }
         else if (diff % 4 == 0)
         {
-            constants.push_back(llvm::Constant::getNullValue(llvm::Type::Int32Ty));
+            constants.push_back(llvm::getGlobalContext().getNullValue(llvm::Type::Int32Ty));
             diff -= 4;
         }
         else if (diff % 2 == 0)
         {
-            constants.push_back(llvm::Constant::getNullValue(llvm::Type::Int16Ty));
+            constants.push_back(llvm::getGlobalContext().getNullValue(llvm::Type::Int16Ty));
             diff -= 2;
         }
         else
         {
-            constants.push_back(llvm::Constant::getNullValue(llvm::Type::Int8Ty));
+            constants.push_back(llvm::getGlobalContext().getNullValue(llvm::Type::Int8Ty));
             diff -= 1;
         }
     }