The runtime functions for multi-dim arrays have changed.

_d_newarraymT and _d_newarraymiT are now named _d_newarraymTX and
_d_newarraymiTX. There is also a change in the signature: instead
of a variable length argumentlist the functions now require an array
of dimensions.

This should fix test runnable/test28.d

gen/arrays.cpp

@@ -631,7 +631,7 @@ DSliceValue* DtoNewDynArray(Loc& loc, Type* arrayType, DValue* dim, bool default
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////
-DSliceValue* DtoNewMulDimDynArray(Loc& loc, Type* arrayType, DValue** dims, size_t ndims, bool defaultInit)
+DSliceValue* DtoNewMulDimDynArray(Loc& loc, Type* arrayType, DValue** dims, size_t ndims)
 {
     IF_LOG Logger::println("DtoNewMulDimDynArray : %s", arrayType->toChars());
     LOG_SCOPE;
@@ -641,26 +641,56 @@ DSliceValue* DtoNewMulDimDynArray(Loc& loc, Type* arrayType, DValue** dims, size
 
     // get value type
     Type* vtype = arrayType->toBasetype();
-    for (size_t i=0; i<ndims; ++i)
+    for (size_t i = 0; i < ndims; ++i)
         vtype = vtype->nextOf();
 
     // get runtime function
-    bool zeroInit = vtype->isZeroInit();
-    if (defaultInit && !isInitialized(vtype))
-        defaultInit = false;
-
-    const char* fnname = zeroInit ? "_d_newarraymT" : "_d_newarraymiT";
-
+    const char* fnname = vtype->isZeroInit() ? "_d_newarraymTX" : "_d_newarraymiTX";
     LLFunction* fn = LLVM_D_GetRuntimeFunction(loc, gIR->module, fnname);
 
-    std::vector<LLValue*> args;
-    args.reserve(ndims+2);
-    args.push_back(arrayTypeInfo);
-    args.push_back(DtoConstSize_t(ndims));
+    // Check if constant
+    bool allDimsConst = true;
+    for (size_t i = 0; i < ndims; ++i)
+    {
+        if (!isaConstant(dims[i]->getRVal()))
+            allDimsConst = false;
+    }
 
     // build dims
-    for (size_t i=0; i<ndims; ++i)
-        args.push_back(dims[i]->getRVal());
+    LLValue* array;
+    if (allDimsConst)
+    {
+        // Build constant array for dimensions
+        std::vector<LLConstant*> argsdims;
+        argsdims.reserve(ndims);
+        for (size_t i = 0; i < ndims; ++i)
+        {
+            argsdims.push_back(isaConstant(dims[i]->getRVal()));
+        }
+
+        llvm::Constant* dims = llvm::ConstantArray::get(llvm::ArrayType::get(DtoSize_t(), ndims), argsdims);
+        LLGlobalVariable* gvar = new llvm::GlobalVariable(*gIR->module, dims->getType(), true, LLGlobalValue::InternalLinkage, dims, ".dimsarray");
+        array = llvm::ConstantExpr::getBitCast(gvar, getPtrToType(dims->getType()));
+    }
+    else
+    {
+        // Build static array for dimensions
+        LLArrayType* type = LLArrayType::get(DtoSize_t(), ndims);
+        array = DtoRawAlloca(type, 0, ".dimarray");
+        unsigned int i = 0;
+        for (size_t i = 0; i < ndims; ++i)
+            DtoStore(dims[i]->getRVal(), DtoGEPi(array, 0, i, ".ndim"));
+    }
+
+    LLStructType* dtype = DtoArrayType(DtoSize_t());
+    LLValue* darray = DtoRawAlloca(dtype, 0, ".array");
+    DtoStore(DtoConstSize_t(ndims), DtoGEPi(darray, 0, 0, ".len"));
+    DtoStore(DtoBitCast(array, getPtrToType(DtoSize_t())), DtoGEPi(darray, 0, 1, ".ptr"));
+
+    llvm::Value* args[] = {
+        arrayTypeInfo,
+        DtoLoad(darray)
+    };
 
     // call allocator
     LLValue* newptr = gIR->CreateCallOrInvoke(fn, args, ".gc_mem").getInstruction();

gen/arrays.h

@@ -57,7 +57,7 @@ void DtoSetArray(DValue* array, LLValue* dim, LLValue* ptr);
 void DtoSetArrayToNull(LLValue* v);
 
 DSliceValue* DtoNewDynArray(Loc& loc, Type* arrayType, DValue* dim, bool defaultInit=true);
-DSliceValue* DtoNewMulDimDynArray(Loc& loc, Type* arrayType, DValue** dims, size_t ndims, bool defaultInit=true);
+DSliceValue* DtoNewMulDimDynArray(Loc& loc, Type* arrayType, DValue** dims, size_t ndims);
 DSliceValue* DtoResizeDynArray(Loc& loc, Type* arrayType, DValue* array, llvm::Value* newdim);
 
 void DtoCatAssignElement(Loc& loc, Type* type, DValue* arr, Expression* exp);

gen/runtime.cpp

@@ -87,8 +87,8 @@ static void checkForImplicitGCCall(const Loc &loc, const char *name)
             "_d_delmemory",
             "_d_newarrayT",
             "_d_newarrayiT",
-            "_d_newarraymT",
-            "_d_newarraymiT",
+            "_d_newarraymTX",
+            "_d_newarraymiTX",
             "_d_newarrayU",
             "_d_newclass",
             "_d_newitemT",
@@ -433,13 +433,13 @@ static void LLVM_D_BuildRuntimeModule()
         llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname2, M);
         llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname3, M);
     }
-    // void[] _d_newarraymT (const TypeInfo ti, size_t[] dims)
-    // void[] _d_newarraymiT(const TypeInfo ti, size_t[] dims)
+    // void[] _d_newarraymTX (const TypeInfo ti, size_t[] dims)
+    // void[] _d_newarraymiTX(const TypeInfo ti, size_t[] dims)
     {
-        llvm::StringRef fname ("_d_newarraymT");
-        llvm::StringRef fname2("_d_newarraymiT");
+        llvm::StringRef fname ("_d_newarraymTX");
+        llvm::StringRef fname2("_d_newarraymiTX");
         LLType *types[] = { typeInfoTy, rt_array(sizeTy) };
-        LLFunctionType* fty = llvm::FunctionType::get(voidArrayTy, types, true);
+        LLFunctionType* fty = llvm::FunctionType::get(voidArrayTy, types, false);
         llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M);
         llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname2, M);
     }

gen/toir.cpp

@@ -1888,7 +1888,7 @@ public:
                 dims.reserve(ndims);
                 for (size_t i=0; i<ndims; ++i)
                     dims.push_back(toElem((*e->arguments)[i]));
-                result = DtoNewMulDimDynArray(e->loc, e->newtype, &dims[0], ndims, true);
+                result = DtoNewMulDimDynArray(e->loc, e->newtype, &dims[0], ndims);
             }
         }
         // new static array