mirror of
https://github.com/xomboverlord/ldc.git
synced 2026-01-15 04:13:14 +01:00
418 lines
14 KiB
C
418 lines
14 KiB
C
#include "llvm/Constants.h"
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#include "llvm/Type.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/Instructions.h"
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#include "llvm/CallingConv.h"
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#include "mtype.h"
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#include "dsymbol.h"
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#include "aggregate.h"
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#include "declaration.h"
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#include "init.h"
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#include "gen/irstate.h"
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#include "gen/tollvm.h"
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#include "gen/arrays.h"
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#include "gen/runtime.h"
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#include "gen/logger.h"
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#include "gen/elem.h"
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//////////////////////////////////////////////////////////////////////////////////////////
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const llvm::StructType* LLVM_DtoArrayType(Type* t)
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{
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assert(t->next);
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const llvm::Type* at = LLVM_DtoType(t->next);
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const llvm::Type* arrty;
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/*if (t->ty == Tsarray) {
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TypeSArray* tsa = (TypeSArray*)t;
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assert(tsa->dim->type->isintegral());
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arrty = llvm::ArrayType::get(at,tsa->dim->toUInteger());
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}
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else {
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arrty = llvm::ArrayType::get(at,0);
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}*/
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if (at == llvm::Type::VoidTy) {
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at = llvm::Type::Int8Ty;
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}
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arrty = llvm::PointerType::get(at);
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std::vector<const llvm::Type*> members;
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if (global.params.is64bit)
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members.push_back(llvm::Type::Int64Ty);
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else
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members.push_back(llvm::Type::Int32Ty);
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members.push_back(arrty);
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return llvm::StructType::get(members);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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const llvm::ArrayType* LLVM_DtoStaticArrayType(Type* t)
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{
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if (t->llvmType)
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return llvm::cast<llvm::ArrayType>(t->llvmType);
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assert(t->ty == Tsarray);
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assert(t->next);
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const llvm::Type* at = LLVM_DtoType(t->next);
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TypeSArray* tsa = (TypeSArray*)t;
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assert(tsa->dim->type->isintegral());
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const llvm::ArrayType* arrty = llvm::ArrayType::get(at,tsa->dim->toUInteger());
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tsa->llvmType = arrty;
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return arrty;
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void LLVM_DtoNullArray(llvm::Value* v)
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{
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assert(gIR);
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llvm::Value* len = LLVM_DtoGEPi(v,0,0,"tmp",gIR->scopebb());
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llvm::Value* zerolen = llvm::ConstantInt::get(len->getType()->getContainedType(0), 0, false);
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new llvm::StoreInst(zerolen, len, gIR->scopebb());
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llvm::Value* ptr = LLVM_DtoGEPi(v,0,1,"tmp",gIR->scopebb());
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const llvm::PointerType* pty = llvm::cast<llvm::PointerType>(ptr->getType()->getContainedType(0));
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llvm::Value* nullptr = llvm::ConstantPointerNull::get(pty);
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new llvm::StoreInst(nullptr, ptr, gIR->scopebb());
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void LLVM_DtoArrayAssign(llvm::Value* dst, llvm::Value* src)
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{
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assert(gIR);
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if (dst->getType() == src->getType())
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{
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llvm::Value* ptr = LLVM_DtoGEPi(src,0,0,"tmp",gIR->scopebb());
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llvm::Value* val = new llvm::LoadInst(ptr,"tmp",gIR->scopebb());
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ptr = LLVM_DtoGEPi(dst,0,0,"tmp",gIR->scopebb());
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new llvm::StoreInst(val, ptr, gIR->scopebb());
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ptr = LLVM_DtoGEPi(src,0,1,"tmp",gIR->scopebb());
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val = new llvm::LoadInst(ptr,"tmp",gIR->scopebb());
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ptr = LLVM_DtoGEPi(dst,0,1,"tmp",gIR->scopebb());
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new llvm::StoreInst(val, ptr, gIR->scopebb());
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}
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else
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{
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if (!llvm::isa<llvm::ArrayType>(src->getType()->getContainedType(0)))
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{
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Logger::cout() << "invalid: " << *src << '\n';
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assert(0);
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}
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const llvm::ArrayType* arrty = llvm::cast<llvm::ArrayType>(src->getType()->getContainedType(0));
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llvm::Type* dstty = llvm::PointerType::get(arrty->getElementType());
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llvm::Value* dstlen = LLVM_DtoGEPi(dst,0,0,"tmp",gIR->scopebb());
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llvm::Value* srclen = llvm::ConstantInt::get(LLVM_DtoSize_t(), arrty->getNumElements(), false);
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new llvm::StoreInst(srclen, dstlen, gIR->scopebb());
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llvm::Value* dstptr = LLVM_DtoGEPi(dst,0,1,"tmp",gIR->scopebb());
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llvm::Value* srcptr = new llvm::BitCastInst(src,dstty,"tmp",gIR->scopebb());
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new llvm::StoreInst(srcptr, dstptr, gIR->scopebb());
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void LLVM_DtoArrayInit(llvm::Value* l, llvm::Value* r)
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{
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const llvm::PointerType* ptrty = llvm::cast<llvm::PointerType>(l->getType());
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const llvm::Type* t = ptrty->getContainedType(0);
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const llvm::ArrayType* arrty = llvm::cast_or_null<llvm::ArrayType>(t);
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if (arrty)
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{
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llvm::Value* ptr = LLVM_DtoGEPi(l,0,0,"tmp",gIR->scopebb());
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llvm::Value* dim = llvm::ConstantInt::get(LLVM_DtoSize_t(), arrty->getNumElements(), false);
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llvm::Value* val = r;
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LLVM_DtoArrayInit(ptr, dim, val);
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}
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else if (llvm::isa<llvm::StructType>(t))
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{
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assert(0 && "Only static arrays support initialisers atm");
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}
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else
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assert(0);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void LLVM_DtoArrayInit(llvm::Value* ptr, llvm::Value* dim, llvm::Value* val)
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{
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const llvm::Type* t = ptr->getType()->getContainedType(0);
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std::vector<llvm::Value*> args(3,NULL);
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args[0] = ptr;
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args[1] = dim;
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args[2] = val;
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const char* funcname = NULL;
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if (llvm::isa<llvm::PointerType>(t)) {
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funcname = "_d_array_init_pointer";
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const llvm::Type* dstty = llvm::PointerType::get(llvm::PointerType::get(llvm::Type::Int8Ty));
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if (args[0]->getType() != dstty)
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args[0] = new llvm::BitCastInst(args[0],dstty,"tmp",gIR->scopebb());
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const llvm::Type* valty = llvm::PointerType::get(llvm::Type::Int8Ty);
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if (args[2]->getType() != valty)
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args[2] = new llvm::BitCastInst(args[2],valty,"tmp",gIR->scopebb());
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}
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else if (t == llvm::Type::Int1Ty) {
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funcname = "_d_array_init_i1";
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}
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else if (t == llvm::Type::Int8Ty) {
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funcname = "_d_array_init_i8";
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}
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else if (t == llvm::Type::Int16Ty) {
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funcname = "_d_array_init_i16";
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}
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else if (t == llvm::Type::Int32Ty) {
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funcname = "_d_array_init_i32";
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}
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else if (t == llvm::Type::Int64Ty) {
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funcname = "_d_array_init_i64";
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}
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else if (t == llvm::Type::FloatTy) {
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funcname = "_d_array_init_float";
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}
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else if (t == llvm::Type::DoubleTy) {
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funcname = "_d_array_init_double";
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}
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else {
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assert(0);
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}
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, funcname);
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assert(fn);
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llvm::CallInst* call = new llvm::CallInst(fn, args.begin(), args.end(), "", gIR->scopebb());
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call->setCallingConv(llvm::CallingConv::C);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void LLVM_DtoSetArray(llvm::Value* arr, llvm::Value* dim, llvm::Value* ptr)
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{
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Logger::cout() << "LLVM_DtoSetArray(" << *arr << ", " << *dim << ", " << *ptr << ")\n";
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const llvm::StructType* st = llvm::cast<llvm::StructType>(arr->getType()->getContainedType(0));
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//const llvm::PointerType* pt = llvm::cast<llvm::PointerType>(r->getType());
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llvm::Value* zero = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0, false);
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llvm::Value* one = llvm::ConstantInt::get(llvm::Type::Int32Ty, 1, false);
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llvm::Value* arrdim = LLVM_DtoGEP(arr,zero,zero,"tmp",gIR->scopebb());
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new llvm::StoreInst(dim, arrdim, gIR->scopebb());
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llvm::Value* arrptr = LLVM_DtoGEP(arr,zero,one,"tmp",gIR->scopebb());
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new llvm::StoreInst(ptr, arrptr, gIR->scopebb());
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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llvm::Constant* LLVM_DtoArrayInitializer(ArrayInitializer* arrinit)
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{
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Logger::println("arr init begin");
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assert(arrinit->type->ty == Tsarray);
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TypeSArray* t = (TypeSArray*)arrinit->type;
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integer_t tdim = t->dim->toInteger();
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std::vector<llvm::Constant*> inits(tdim, 0);
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const llvm::Type* elemty = LLVM_DtoType(arrinit->type->next);
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assert(arrinit->index.dim == arrinit->value.dim);
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for (int i=0,j=0; i < tdim; ++i)
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{
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Initializer* init = 0;
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Expression* idx = (Expression*)arrinit->index.data[j];
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if (idx)
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{
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integer_t k = idx->toInteger();
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if (i == k)
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{
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init = (Initializer*)arrinit->value.data[j];
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assert(init);
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++j;
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}
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}
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else
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{
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init = (Initializer*)arrinit->value.data[j];
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++j;
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}
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llvm::Constant* v = 0;
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if (!init)
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{
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elem* e = t->next->defaultInit()->toElem(gIR);
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v = llvm::cast<llvm::Constant>(e->val);
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delete e;
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}
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else if (ExpInitializer* ex = init->isExpInitializer())
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{
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elem* e = ex->exp->toElem(gIR);
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v = llvm::cast<llvm::Constant>(e->val);
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delete e;
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}
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else if (StructInitializer* si = init->isStructInitializer())
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{
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v = LLVM_DtoStructInitializer(si);
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}
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else if (ArrayInitializer* ai = init->isArrayInitializer())
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{
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v = LLVM_DtoArrayInitializer(ai);
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}
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else if (init->isVoidInitializer())
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{
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v = llvm::UndefValue::get(elemty);
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}
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else
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assert(v);
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inits[i] = v;
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}
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const llvm::ArrayType* arrty = LLVM_DtoStaticArrayType(t);
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return llvm::ConstantArray::get(arrty, inits);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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static llvm::Value* get_slice_ptr(elem* e, llvm::Value*& sz)
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{
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assert(e->mem);
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const llvm::Type* t = e->mem->getType()->getContainedType(0);
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llvm::Value* ret = 0;
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if (e->arg != 0) {
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// this means it's a real slice
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ret = e->mem;
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size_t elembsz = gTargetData->getTypeSize(ret->getType());
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llvm::ConstantInt* elemsz = llvm::ConstantInt::get(LLVM_DtoSize_t(), elembsz, false);
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if (llvm::isa<llvm::ConstantInt>(e->arg)) {
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sz = llvm::ConstantExpr::getMul(elemsz, llvm::cast<llvm::Constant>(e->arg));
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}
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else {
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sz = llvm::BinaryOperator::createMul(elemsz,e->arg,"tmp",gIR->scopebb());
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}
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}
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else if (llvm::isa<llvm::ArrayType>(t)) {
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ret = LLVM_DtoGEPi(e->mem, 0, 0, "tmp", gIR->scopebb());
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size_t elembsz = gTargetData->getTypeSize(ret->getType()->getContainedType(0));
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llvm::ConstantInt* elemsz = llvm::ConstantInt::get(LLVM_DtoSize_t(), elembsz, false);
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size_t numelements = llvm::cast<llvm::ArrayType>(t)->getNumElements();
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llvm::ConstantInt* nelems = llvm::ConstantInt::get(LLVM_DtoSize_t(), numelements, false);
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sz = llvm::ConstantExpr::getMul(elemsz, nelems);
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}
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else if (llvm::isa<llvm::StructType>(t)) {
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ret = LLVM_DtoGEPi(e->mem, 0, 1, "tmp", gIR->scopebb());
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ret = new llvm::LoadInst(ret, "tmp", gIR->scopebb());
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size_t elembsz = gTargetData->getTypeSize(ret->getType()->getContainedType(0));
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llvm::ConstantInt* elemsz = llvm::ConstantInt::get(LLVM_DtoSize_t(), elembsz, false);
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llvm::Value* len = LLVM_DtoGEPi(e->mem, 0, 0, "tmp", gIR->scopebb());
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len = new llvm::LoadInst(len, "tmp", gIR->scopebb());
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sz = llvm::BinaryOperator::createMul(len,elemsz,"tmp",gIR->scopebb());
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}
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else {
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assert(0);
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}
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return ret;
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}
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void LLVM_DtoArrayCopy(elem* dst, elem* src)
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{
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Logger::cout() << "Array copy ((((" << *src->mem << ")))) into ((((" << *dst->mem << "))))\n";
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assert(dst->type == elem::SLICE);
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assert(src->type == elem::SLICE);
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llvm::Type* arrty = llvm::PointerType::get(llvm::Type::Int8Ty);
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llvm::Value* sz1;
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llvm::Value* dstarr = new llvm::BitCastInst(get_slice_ptr(dst,sz1),arrty,"tmp",gIR->scopebb());
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llvm::Value* sz2;
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llvm::Value* srcarr = new llvm::BitCastInst(get_slice_ptr(src,sz2),arrty,"tmp",gIR->scopebb());
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llvm::Function* fn = (global.params.is64bit) ? LLVM_DeclareMemCpy64() : LLVM_DeclareMemCpy32();
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std::vector<llvm::Value*> llargs;
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llargs.resize(4);
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llargs[0] = dstarr;
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llargs[1] = srcarr;
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llargs[2] = sz1;
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llargs[3] = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0, false);
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new llvm::CallInst(fn, llargs.begin(), llargs.end(), "", gIR->scopebb());
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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llvm::Constant* LLVM_DtoConstantSlice(llvm::Constant* dim, llvm::Constant* ptr)
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{
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std::vector<const llvm::Type*> types;
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types.push_back(dim->getType());
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types.push_back(ptr->getType());
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const llvm::StructType* type = llvm::StructType::get(types);
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std::vector<llvm::Constant*> values;
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values.push_back(dim);
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values.push_back(ptr);
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return llvm::ConstantStruct::get(type,values);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void LLVM_DtoNewDynArray(llvm::Value* dst, llvm::Value* dim, Type* dty, bool doinit)
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{
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const llvm::Type* ty = LLVM_DtoType(dty);
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size_t sz = gTargetData->getTypeSize(ty);
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llvm::ConstantInt* n = llvm::ConstantInt::get(LLVM_DtoSize_t(), sz, false);
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llvm::Value* bytesize = llvm::BinaryOperator::createMul(n,dim,"tmp",gIR->scopebb());
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llvm::Value* nullptr = llvm::ConstantPointerNull::get(llvm::PointerType::get(ty));
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llvm::Value* newptr = LLVM_DtoRealloc(nullptr, bytesize);
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if (doinit) {
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elem* e = dty->defaultInit()->toElem(gIR);
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LLVM_DtoArrayInit(newptr,dim,e->getValue());
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delete e;
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}
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llvm::Value* lenptr = LLVM_DtoGEPi(dst,0,0,"tmp",gIR->scopebb());
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new llvm::StoreInst(dim,lenptr,gIR->scopebb());
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llvm::Value* ptrptr = LLVM_DtoGEPi(dst,0,1,"tmp",gIR->scopebb());
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new llvm::StoreInst(newptr,ptrptr,gIR->scopebb());
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void LLVM_DtoResizeDynArray(llvm::Value* arr, llvm::Value* sz)
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{
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llvm::Value* ptr = LLVM_DtoGEPi(arr, 0, 1, "tmp", gIR->scopebb());
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llvm::Value* ptrld = new llvm::LoadInst(ptr,"tmp",gIR->scopebb());
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size_t isz = gTargetData->getTypeSize(ptrld->getType()->getContainedType(0));
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llvm::ConstantInt* n = llvm::ConstantInt::get(LLVM_DtoSize_t(), isz, false);
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llvm::Value* bytesz = llvm::BinaryOperator::createMul(n,sz,"tmp",gIR->scopebb());
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llvm::Value* newptr = LLVM_DtoRealloc(ptrld, bytesz);
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new llvm::StoreInst(newptr,ptr,gIR->scopebb());
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llvm::Value* len = LLVM_DtoGEPi(arr, 0, 0, "tmp", gIR->scopebb());
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new llvm::StoreInst(sz,len,gIR->scopebb());
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}
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