Mercurial > projects > ldc
view gen/llvmhelpers.cpp @ 602:48f079b4fe0f
Fixed ArrayLiteralExp::toConstElem for dynamic arrays, tango-user library should now be possible to build. It seems to be related to DMD bug 2356, which must have been introduced recently, as we already handled this fine for ArrayInitializers, just not ArrayLiterals... Kinda annoying to have to do this work due to DMD bugs ...
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Mon, 15 Sep 2008 15:48:59 +0200 |
parents | 1ecb43102d12 |
children | 1b62222581fb |
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#include "gen/llvm.h" #include "llvm/Target/TargetMachineRegistry.h" #include "mars.h" #include "init.h" #include "id.h" #include "expression.h" #include "template.h" #include "gen/tollvm.h" #include "gen/llvmhelpers.h" #include "gen/irstate.h" #include "gen/runtime.h" #include "gen/logger.h" #include "gen/arrays.h" #include "gen/dvalue.h" #include "gen/complex.h" #include "gen/classes.h" #include "gen/functions.h" #include "gen/typeinf.h" #include "gen/todebug.h" #include <stack> /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // DYNAMIC MEMORY HELPERS ////////////////////////////////////////////////////////////////////////////////////////*/ LLValue* DtoNew(Type* newtype) { // get runtime function llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_allocmemoryT"); // get type info LLConstant* ti = DtoTypeInfoOf(newtype); assert(isaPointer(ti)); // call runtime allocator LLValue* mem = gIR->CreateCallOrInvoke(fn, ti, ".gc_mem")->get(); // cast return DtoBitCast(mem, getPtrToType(DtoType(newtype)), ".gc_mem"); } void DtoDeleteMemory(LLValue* ptr) { // get runtime function llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delmemory"); // build args LLSmallVector<LLValue*,1> arg; arg.push_back(DtoBitCast(ptr, getVoidPtrType(), ".tmp")); // call gIR->CreateCallOrInvoke(fn, arg.begin(), arg.end()); } void DtoDeleteClass(LLValue* inst) { // get runtime function llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delclass"); // build args LLSmallVector<LLValue*,1> arg; arg.push_back(DtoBitCast(inst, fn->getFunctionType()->getParamType(0), ".tmp")); // call gIR->CreateCallOrInvoke(fn, arg.begin(), arg.end()); } void DtoDeleteInterface(LLValue* inst) { // get runtime function llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delinterface"); // build args LLSmallVector<LLValue*,1> arg; arg.push_back(DtoBitCast(inst, fn->getFunctionType()->getParamType(0), ".tmp")); // call gIR->CreateCallOrInvoke(fn, arg.begin(), arg.end()); } void DtoDeleteArray(DValue* arr) { // get runtime function llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delarray"); // build args LLSmallVector<LLValue*,2> arg; arg.push_back(DtoArrayLen(arr)); arg.push_back(DtoBitCast(DtoArrayPtr(arr), getVoidPtrType(), ".tmp")); // call gIR->CreateCallOrInvoke(fn, arg.begin(), arg.end()); } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // ALLOCA HELPERS ////////////////////////////////////////////////////////////////////////////////////////*/ llvm::AllocaInst* DtoAlloca(const LLType* lltype, const std::string& name) { return new llvm::AllocaInst(lltype, name, gIR->topallocapoint()); } llvm::AllocaInst* DtoAlloca(const LLType* lltype, LLValue* arraysize, const std::string& name) { return new llvm::AllocaInst(lltype, arraysize, name, gIR->topallocapoint()); } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // ASSERT HELPER ////////////////////////////////////////////////////////////////////////////////////////*/ void DtoAssert(Loc* loc, DValue* msg) { std::vector<LLValue*> args; LLConstant* c; // func const char* fname = msg ? "_d_assert_msg" : "_d_assert"; llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, fname); // param attrs llvm::PAListPtr palist; int idx = 1; // FIXME: every assert creates a global for the filename !!! c = DtoConstString(loc->filename); // msg param if (msg) { if (DSliceValue* s = msg->isSlice()) { llvm::AllocaInst* alloc = gIR->func()->msgArg; if (!alloc) { alloc = DtoAlloca(c->getType(), ".assertmsg"); DtoSetArray(alloc, DtoArrayLen(s), DtoArrayPtr(s)); gIR->func()->msgArg = alloc; } args.push_back(alloc); } else { args.push_back(msg->getRVal()); } palist = palist.addAttr(idx++, llvm::ParamAttr::ByVal); } // file param llvm::AllocaInst* alloc = gIR->func()->srcfileArg; if (!alloc) { alloc = DtoAlloca(c->getType(), ".srcfile"); gIR->func()->srcfileArg = alloc; } LLValue* ptr = DtoGEPi(alloc, 0,0, "tmp"); DtoStore(c->getOperand(0), ptr); ptr = DtoGEPi(alloc, 0,1, "tmp"); DtoStore(c->getOperand(1), ptr); args.push_back(alloc); palist = palist.addAttr(idx++, llvm::ParamAttr::ByVal); // line param c = DtoConstUint(loc->linnum); args.push_back(c); // call CallOrInvoke* call = gIR->CreateCallOrInvoke(fn, args.begin(), args.end()); call->setParamAttrs(palist); // after assert is always unreachable gIR->ir->CreateUnreachable(); } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // LABEL HELPER ////////////////////////////////////////////////////////////////////////////////////////*/ LabelStatement* DtoLabelStatement(Identifier* ident) { FuncDeclaration* fd = gIR->func()->decl; FuncDeclaration::LabelMap::iterator iter = fd->labmap.find(ident->toChars()); if (iter == fd->labmap.end()) { if (fd->returnLabel && fd->returnLabel->ident->equals(ident)) { assert(fd->returnLabel->statement); return fd->returnLabel->statement; } return NULL; } return iter->second; } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // GOTO HELPER ////////////////////////////////////////////////////////////////////////////////////////*/ void DtoGoto(Loc* loc, Identifier* target, EnclosingHandler* enclosinghandler, TryFinallyStatement* sourcetf) { assert(!gIR->scopereturned()); LabelStatement* lblstmt = DtoLabelStatement(target); if(!lblstmt) { error(*loc, "the label %s does not exist", target->toChars()); fatal(); } // if the target label is inside inline asm, error if(lblstmt->asmLabel) { error(*loc, "cannot goto to label %s inside an inline asm block", target->toChars()); fatal(); } // find target basic block std::string labelname = gIR->func()->getScopedLabelName(target->toChars()); llvm::BasicBlock*& targetBB = gIR->func()->labelToBB[labelname]; if (targetBB == NULL) targetBB = llvm::BasicBlock::Create("label", gIR->topfunc()); // find finallys between goto and label EnclosingHandler* endfinally = enclosinghandler; while(endfinally != NULL && endfinally != lblstmt->enclosinghandler) { endfinally = endfinally->getEnclosing(); } // error if didn't find tf statement of label if(endfinally != lblstmt->enclosinghandler) error(*loc, "cannot goto into try block"); // goto into finally blocks is forbidden by the spec // though it should not be problematic to implement if(lblstmt->tf != sourcetf) { error(*loc, "spec disallows goto into finally block"); fatal(); } // emit code for finallys between goto and label DtoEnclosingHandlers(enclosinghandler, endfinally); llvm::BranchInst::Create(targetBB, gIR->scopebb()); } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // TRY-FINALLY, VOLATILE AND SYNCHRONIZED HELPER ////////////////////////////////////////////////////////////////////////////////////////*/ void EnclosingSynchro::emitCode(IRState * p) { if (s->exp) DtoLeaveMonitor(s->llsync); else DtoLeaveCritical(s->llsync); } EnclosingHandler* EnclosingSynchro::getEnclosing() { return s->enclosinghandler; } //////////////////////////////////////////////////////////////////////////////////////// void EnclosingVolatile::emitCode(IRState * p) { // store-load barrier DtoMemoryBarrier(false, false, true, false); } EnclosingHandler* EnclosingVolatile::getEnclosing() { return v->enclosinghandler; } //////////////////////////////////////////////////////////////////////////////////////// void EnclosingTryFinally::emitCode(IRState * p) { assert(tf->finalbody); tf->finalbody->toIR(p); } EnclosingHandler* EnclosingTryFinally::getEnclosing() { return tf->enclosinghandler; } //////////////////////////////////////////////////////////////////////////////////////// void DtoEnclosingHandlers(EnclosingHandler* start, EnclosingHandler* end) { // verify that end encloses start EnclosingHandler* endfinally = start; while(endfinally != NULL && endfinally != end) { endfinally = endfinally->getEnclosing(); } assert(endfinally == end); // // emit code for finallys between start and end // // since the labelstatements possibly inside are private // and might already exist push a label scope gIR->func()->pushUniqueLabelScope("enclosing"); EnclosingHandler* tf = start; while(tf != end) { tf->emitCode(gIR); tf = tf->getEnclosing(); } gIR->func()->popLabelScope(); } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // SYNCHRONIZED SECTION HELPERS ////////////////////////////////////////////////////////////////////////////////////////*/ void DtoEnterCritical(LLValue* g) { LLFunction* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_criticalenter"); gIR->CreateCallOrInvoke(fn, g); } void DtoLeaveCritical(LLValue* g) { LLFunction* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_criticalexit"); gIR->CreateCallOrInvoke(fn, g); } void DtoEnterMonitor(LLValue* v) { LLFunction* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_monitorenter"); v = DtoBitCast(v, fn->getFunctionType()->getParamType(0)); gIR->CreateCallOrInvoke(fn, v); } void DtoLeaveMonitor(LLValue* v) { LLFunction* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_monitorexit"); v = DtoBitCast(v, fn->getFunctionType()->getParamType(0)); gIR->CreateCallOrInvoke(fn, v); } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // NESTED VARIABLE HELPERS ////////////////////////////////////////////////////////////////////////////////////////*/ DValue* DtoNestedVariable(Loc loc, Type* astype, VarDeclaration* vd) { Dsymbol* vdparent = vd->toParent2(); assert(vdparent); IrFunction* irfunc = gIR->func(); // is the nested variable in this scope? if (vdparent == irfunc->decl) { LLValue* val = vd->ir.getIrValue(); return new DVarValue(astype, vd, val); } // get it from the nested context LLValue* ctx = 0; if (irfunc->decl->isMember2()) { ClassDeclaration* cd = irfunc->decl->isMember2()->isClassDeclaration(); LLValue* val = DtoLoad(irfunc->thisArg); ctx = DtoLoad(DtoGEPi(val, 0,2+cd->vthis->ir.irField->index, ".vthis")); } else ctx = irfunc->nestArg; assert(ctx); assert(vd->ir.irLocal); LLValue* val = DtoBitCast(ctx, getPtrToType(getVoidPtrType())); val = DtoGEPi1(val, vd->ir.irLocal->nestedIndex); val = DtoLoad(val); assert(vd->ir.irLocal->value); val = DtoBitCast(val, vd->ir.irLocal->value->getType(), vd->toChars()); return new DVarValue(astype, vd, val); } LLValue* DtoNestedContext(Loc loc, Dsymbol* sym) { Logger::println("DtoNestedContext for %s", sym->toPrettyChars()); LOG_SCOPE; IrFunction* irfunc = gIR->func(); if (irfunc->nestedVar) return irfunc->nestedVar; else if (irfunc->nestArg) return irfunc->nestArg; else if (irfunc->thisArg) { ClassDeclaration* cd = irfunc->decl->isMember2()->isClassDeclaration(); if (!cd || !cd->vthis) return getNullPtr(getVoidPtrType()); LLValue* val = DtoLoad(irfunc->thisArg); return DtoLoad(DtoGEPi(val, 0,2+cd->vthis->ir.irField->index, ".vthis")); } else { return getNullPtr(getVoidPtrType()); } } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // ASSIGNMENT HELPER (store this in that) ////////////////////////////////////////////////////////////////////////////////////////*/ void DtoAssign(Loc& loc, DValue* lhs, DValue* rhs) { Logger::cout() << "DtoAssign(...);\n"; LOG_SCOPE; Type* t = lhs->getType()->toBasetype(); Type* t2 = rhs->getType()->toBasetype(); if (t->ty == Tstruct) { if (!t->equals(t2)) { // TODO: fix this, use 'rhs' for something DtoAggrZeroInit(lhs->getLVal()); } else { DtoAggrCopy(lhs->getLVal(), rhs->getRVal()); } } else if (t->ty == Tarray) { // lhs is slice if (DSliceValue* s = lhs->isSlice()) { if (DSliceValue* s2 = rhs->isSlice()) { DtoArrayCopySlices(s, s2); } else if (t->next->toBasetype()->equals(t2)) { DtoArrayInit(loc, s, rhs); } else { DtoArrayCopyToSlice(s, rhs); } } // rhs is slice else if (DSliceValue* s = rhs->isSlice()) { assert(s->getType()->toBasetype() == lhs->getType()->toBasetype()); DtoSetArray(lhs->getLVal(),DtoArrayLen(s),DtoArrayPtr(s)); } // null else if (rhs->isNull()) { DtoSetArrayToNull(lhs->getLVal()); } // reference assignment else { DtoArrayAssign(lhs->getLVal(), rhs->getRVal()); } } else if (t->ty == Tsarray) { if (DtoType(lhs->getType()) == DtoType(rhs->getType())) { DtoStaticArrayCopy(lhs->getLVal(), rhs->getRVal()); } else { DtoArrayInit(loc, lhs, rhs); } } else if (t->ty == Tdelegate) { if (rhs->isNull()) DtoAggrZeroInit(lhs->getLVal()); else { LLValue* l = lhs->getLVal(); LLValue* r = rhs->getRVal(); Logger::cout() << "assign\nlhs: " << *l << "rhs: " << *r << '\n'; DtoAggrCopy(l, r); } } else if (t->ty == Tclass) { assert(t2->ty == Tclass); LLValue* l = lhs->getLVal(); LLValue* r = rhs->getRVal(); Logger::cout() << "l : " << *l << '\n'; Logger::cout() << "r : " << *r << '\n'; r = DtoBitCast(r, l->getType()->getContainedType(0)); DtoStore(r, l); } else if (t->iscomplex()) { LLValue* dst; if (DLRValue* lr = lhs->isLRValue()) { dst = lr->getLVal(); rhs = DtoCastComplex(loc, rhs, lr->getLType()); } else { dst = lhs->getLVal(); } DtoStore(rhs->getRVal(), dst); } else { LLValue* l = lhs->getLVal(); LLValue* r = rhs->getRVal(); Logger::cout() << "assign\nlhs: " << *l << "rhs: " << *r << '\n'; const LLType* lit = l->getType()->getContainedType(0); if (r->getType() != lit) { // handle lvalue cast assignments if (DLRValue* lr = lhs->isLRValue()) { Logger::println("lvalue cast!"); r = DtoCast(loc, rhs, lr->getLType())->getRVal(); } else { r = DtoCast(loc, rhs, lhs->getType())->getRVal(); } Logger::cout() << "really assign\nlhs: " << *l << "rhs: " << *r << '\n'; assert(r->getType() == l->getType()->getContainedType(0)); } gIR->ir->CreateStore(r, l); } } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // NULL VALUE HELPER ////////////////////////////////////////////////////////////////////////////////////////*/ DValue* DtoNullValue(Type* type) { Type* basetype = type->toBasetype(); TY basety = basetype->ty; const LLType* lltype = DtoType(basetype); // complex, needs to be first since complex are also floating if (basetype->iscomplex()) { const LLType* basefp = DtoComplexBaseType(basetype); LLValue* res = DtoAggrPair(DtoType(type), LLConstant::getNullValue(basefp), LLConstant::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)); } // dynamic array else if (basety == Tarray) { LLValue* len = DtoConstSize_t(0); LLValue* ptr = getNullPtr(getPtrToType(DtoType(basetype->next))); return new DSliceValue(type, len, ptr); } // delegate else if (basety == Tdelegate) { return new DNullValue(type, LLConstant::getNullValue(lltype)); } // unknown std::cout << "unsupported: null value for " << type->toChars() << '\n'; assert(0); return 0; } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // CASTING HELPERS ////////////////////////////////////////////////////////////////////////////////////////*/ DValue* DtoCastInt(Loc& loc, DValue* val, Type* _to) { const LLType* tolltype = DtoType(_to); Type* to = _to->toBasetype(); Type* from = val->getType()->toBasetype(); assert(from->isintegral()); size_t fromsz = from->size(); size_t tosz = to->size(); LLValue* rval = val->getRVal(); if (rval->getType() == tolltype) { return new DImValue(_to, rval); } if (to->isintegral()) { if (fromsz < tosz) { Logger::cout() << "cast to: " << *tolltype << '\n'; if (from->isunsigned() || from->ty == Tbool) { rval = new llvm::ZExtInst(rval, tolltype, "tmp", gIR->scopebb()); } else { rval = new llvm::SExtInst(rval, tolltype, "tmp", gIR->scopebb()); } } else if (fromsz > tosz) { rval = new llvm::TruncInst(rval, tolltype, "tmp", gIR->scopebb()); } else { rval = DtoBitCast(rval, tolltype); } } else if (to->iscomplex()) { return DtoComplex(loc, to, val); } else if (to->isfloating()) { if (from->isunsigned()) { rval = new llvm::UIToFPInst(rval, tolltype, "tmp", gIR->scopebb()); } else { rval = new llvm::SIToFPInst(rval, tolltype, "tmp", gIR->scopebb()); } } else if (to->ty == Tpointer) { Logger::cout() << "cast pointer: " << *tolltype << '\n'; rval = gIR->ir->CreateIntToPtr(rval, tolltype, "tmp"); } else { error(loc, "invalid cast from '%s' to '%s'", val->getType()->toChars(), _to->toChars()); fatal(); } return new DImValue(_to, rval); } DValue* DtoCastPtr(Loc& loc, DValue* val, Type* to) { const LLType* tolltype = DtoType(to); Type* totype = to->toBasetype(); Type* fromtype = val->getType()->toBasetype(); assert(fromtype->ty == Tpointer || fromtype->ty == Tfunction); LLValue* rval; if (totype->ty == Tpointer || totype->ty == Tclass) { LLValue* src = val->getRVal(); Logger::cout() << "src: " << *src << "to type: " << *tolltype << '\n'; rval = DtoBitCast(src, tolltype); } else if (totype->isintegral()) { rval = new llvm::PtrToIntInst(val->getRVal(), tolltype, "tmp", gIR->scopebb()); } else { error(loc, "invalid cast from '%s' to '%s'", val->getType()->toChars(), to->toChars()); fatal(); } return new DImValue(to, rval); } DValue* DtoCastFloat(Loc& loc, DValue* val, Type* to) { if (val->getType() == to) return val; const LLType* tolltype = DtoType(to); Type* totype = to->toBasetype(); Type* fromtype = val->getType()->toBasetype(); assert(fromtype->isfloating()); size_t fromsz = fromtype->size(); size_t tosz = totype->size(); LLValue* rval; if (totype->iscomplex()) { return DtoComplex(loc, to, val); } else if (totype->isfloating()) { if (fromsz == tosz) { rval = val->getRVal(); assert(rval->getType() == tolltype); } else if (fromsz < tosz) { rval = new llvm::FPExtInst(val->getRVal(), tolltype, "tmp", gIR->scopebb()); } else if (fromsz > tosz) { rval = new llvm::FPTruncInst(val->getRVal(), tolltype, "tmp", gIR->scopebb()); } else { error(loc, "invalid cast from '%s' to '%s'", val->getType()->toChars(), to->toChars()); fatal(); } } else if (totype->isintegral()) { if (totype->isunsigned()) { rval = new llvm::FPToUIInst(val->getRVal(), tolltype, "tmp", gIR->scopebb()); } else { rval = new llvm::FPToSIInst(val->getRVal(), tolltype, "tmp", gIR->scopebb()); } } else { error(loc, "invalid cast from '%s' to '%s'", val->getType()->toChars(), to->toChars()); fatal(); } return new DImValue(to, rval); } DValue* DtoCastDelegate(Loc& loc, DValue* val, Type* to) { LLValue* res = 0; to = to->toBasetype(); if (to->ty == Tdelegate) { const LLType* toll = getPtrToType(DtoType(to)); res = DtoBitCast(val->getRVal(), toll); } else { error(loc, "invalid cast from '%s' to '%s'", val->getType()->toChars(), to->toChars()); fatal(); } return new DImValue(to, res); } DValue* DtoCast(Loc& loc, DValue* val, Type* to) { Type* fromtype = val->getType()->toBasetype(); Logger::println("Casting from '%s' to '%s'", fromtype->toChars(), to->toChars()); if (fromtype->isintegral()) { return DtoCastInt(loc, val, to); } else if (fromtype->iscomplex()) { return DtoCastComplex(loc, val, to); } else if (fromtype->isfloating()) { return DtoCastFloat(loc, val, to); } else if (fromtype->ty == Tclass) { return DtoCastClass(val, to); } else if (fromtype->ty == Tarray || fromtype->ty == Tsarray) { return DtoCastArray(loc, val, to); } else if (fromtype->ty == Tpointer || fromtype->ty == Tfunction) { return DtoCastPtr(loc, val, to); } else if (fromtype->ty == Tdelegate) { return DtoCastDelegate(loc, val, to); } else { error(loc, "invalid cast from '%s' to '%s'", val->getType()->toChars(), to->toChars()); fatal(); } } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // TEMPLATE HELPERS ////////////////////////////////////////////////////////////////////////////////////////*/ bool DtoIsTemplateInstance(Dsymbol* s) { if (!s) return false; if (s->isTemplateInstance() && !s->isTemplateMixin()) return true; else if (s->parent) return DtoIsTemplateInstance(s->parent); return false; } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // LAZY STATIC INIT HELPER ////////////////////////////////////////////////////////////////////////////////////////*/ void DtoLazyStaticInit(bool istempl, LLValue* gvar, Initializer* init, Type* t) { // create a flag to make sure initialization only happens once llvm::GlobalValue::LinkageTypes gflaglink = istempl ? llvm::GlobalValue::WeakLinkage : llvm::GlobalValue::InternalLinkage; std::string gflagname(gvar->getName()); gflagname.append("__initflag"); llvm::GlobalVariable* gflag = new llvm::GlobalVariable(LLType::Int1Ty,false,gflaglink,DtoConstBool(false),gflagname,gIR->module); // check flag and do init if not already done llvm::BasicBlock* oldend = gIR->scopeend(); llvm::BasicBlock* initbb = llvm::BasicBlock::Create("ifnotinit",gIR->topfunc(),oldend); llvm::BasicBlock* endinitbb = llvm::BasicBlock::Create("ifnotinitend",gIR->topfunc(),oldend); LLValue* cond = gIR->ir->CreateICmpEQ(gIR->ir->CreateLoad(gflag,"tmp"),DtoConstBool(false)); gIR->ir->CreateCondBr(cond, initbb, endinitbb); gIR->scope() = IRScope(initbb,endinitbb); DValue* ie = DtoInitializer(gvar, init); DVarValue dst(t, gvar); DtoAssign(init->loc, &dst, ie); gIR->ir->CreateStore(DtoConstBool(true), gflag); gIR->ir->CreateBr(endinitbb); gIR->scope() = IRScope(endinitbb,oldend); } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // PROCESSING QUEUE HELPERS ////////////////////////////////////////////////////////////////////////////////////////*/ void DtoResolveDsymbol(Dsymbol* dsym) { if (StructDeclaration* sd = dsym->isStructDeclaration()) { DtoResolveStruct(sd); } else if (ClassDeclaration* cd = dsym->isClassDeclaration()) { DtoResolveClass(cd); } else if (FuncDeclaration* fd = dsym->isFuncDeclaration()) { DtoResolveFunction(fd); } else if (TypeInfoDeclaration* fd = dsym->isTypeInfoDeclaration()) { DtoResolveTypeInfo(fd); } else { error(dsym->loc, "unsupported dsymbol: %s", dsym->toChars()); assert(0 && "unsupported dsymbol for DtoResolveDsymbol"); } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoDeclareDsymbol(Dsymbol* dsym) { if (StructDeclaration* sd = dsym->isStructDeclaration()) { DtoDeclareStruct(sd); } else if (ClassDeclaration* cd = dsym->isClassDeclaration()) { DtoDeclareClass(cd); } else if (FuncDeclaration* fd = dsym->isFuncDeclaration()) { DtoDeclareFunction(fd); } else if (TypeInfoDeclaration* fd = dsym->isTypeInfoDeclaration()) { DtoDeclareTypeInfo(fd); } else { error(dsym->loc, "unsupported dsymbol: %s", dsym->toChars()); assert(0 && "unsupported dsymbol for DtoDeclareDsymbol"); } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoConstInitDsymbol(Dsymbol* dsym) { if (StructDeclaration* sd = dsym->isStructDeclaration()) { DtoConstInitStruct(sd); } else if (ClassDeclaration* cd = dsym->isClassDeclaration()) { DtoConstInitClass(cd); } else if (TypeInfoDeclaration* fd = dsym->isTypeInfoDeclaration()) { DtoConstInitTypeInfo(fd); } else if (VarDeclaration* vd = dsym->isVarDeclaration()) { DtoConstInitGlobal(vd); } else { error(dsym->loc, "unsupported dsymbol: %s", dsym->toChars()); assert(0 && "unsupported dsymbol for DtoConstInitDsymbol"); } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoDefineDsymbol(Dsymbol* dsym) { if (StructDeclaration* sd = dsym->isStructDeclaration()) { DtoDefineStruct(sd); } else if (ClassDeclaration* cd = dsym->isClassDeclaration()) { DtoDefineClass(cd); } else if (FuncDeclaration* fd = dsym->isFuncDeclaration()) { DtoDefineFunc(fd); } else if (TypeInfoDeclaration* fd = dsym->isTypeInfoDeclaration()) { DtoDefineTypeInfo(fd); } else { error(dsym->loc, "unsupported dsymbol: %s", dsym->toChars()); assert(0 && "unsupported dsymbol for DtoDefineDsymbol"); } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoConstInitGlobal(VarDeclaration* vd) { if (vd->ir.initialized) return; vd->ir.initialized = gIR->dmodule; Logger::println("* DtoConstInitGlobal(%s)", vd->toChars()); LOG_SCOPE; bool emitRTstaticInit = false; LLConstant* _init = 0; if (vd->parent && vd->parent->isFuncDeclaration() && vd->init && vd->init->isExpInitializer()) { _init = DtoConstInitializer(vd->type, NULL); emitRTstaticInit = true; } else { _init = DtoConstInitializer(vd->type, vd->init); } const LLType* _type = DtoType(vd->type); Type* t = vd->type->toBasetype(); //Logger::cout() << "initializer: " << *_init << '\n'; if (_type != _init->getType()) { Logger::cout() << "got type '" << *_init->getType() << "' expected '" << *_type << "'\n"; // zero initalizer if (_init->isNullValue()) _init = llvm::Constant::getNullValue(_type); // pointer to global constant (struct.init) else if (llvm::isa<llvm::GlobalVariable>(_init)) { assert(_init->getType()->getContainedType(0) == _type); llvm::GlobalVariable* gv = llvm::cast<llvm::GlobalVariable>(_init); assert(t->ty == Tstruct); TypeStruct* ts = (TypeStruct*)t; assert(ts->sym->ir.irStruct->constInit); _init = ts->sym->ir.irStruct->constInit; } // array single value init else if (isaArray(_type)) { _init = DtoConstStaticArray(_type, _init); } else { Logger::cout() << "Unexpected initializer type: " << *_type << '\n'; //assert(0); } } bool istempl = false; if ((vd->storage_class & STCcomdat) || (vd->parent && DtoIsTemplateInstance(vd->parent))) { istempl = true; } if (_init && _init->getType() != _type) _type = _init->getType(); llvm::cast<LLOpaqueType>(vd->ir.irGlobal->type.get())->refineAbstractTypeTo(_type); _type = vd->ir.irGlobal->type.get(); //_type->dump(); assert(!_type->isAbstract()); llvm::GlobalVariable* gvar = llvm::cast<llvm::GlobalVariable>(vd->ir.irGlobal->value); if (!(vd->storage_class & STCextern) && (vd->getModule() == gIR->dmodule || istempl)) { Logger::println("setting initializer"); Logger::cout() << "global: " << *gvar << '\n'; Logger::cout() << "init: " << *_init << '\n'; gvar->setInitializer(_init); // do debug info if (global.params.symdebug) { LLGlobalVariable* gv = DtoDwarfGlobalVariable(gvar, vd); // keep a reference so GDCE doesn't delete it ! gIR->usedArray.push_back(llvm::ConstantExpr::getBitCast(gv, getVoidPtrType())); } } if (emitRTstaticInit) DtoLazyStaticInit(istempl, gvar, vd->init, t); } ////////////////////////////////////////////////////////////////////////////////////////// void DtoEmptyResolveList() { //Logger::println("DtoEmptyResolveList()"); Dsymbol* dsym; while (!gIR->resolveList.empty()) { dsym = gIR->resolveList.front(); gIR->resolveList.pop_front(); DtoResolveDsymbol(dsym); } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoEmptyDeclareList() { //Logger::println("DtoEmptyDeclareList()"); Dsymbol* dsym; while (!gIR->declareList.empty()) { dsym = gIR->declareList.front(); gIR->declareList.pop_front(); DtoDeclareDsymbol(dsym); } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoEmptyConstInitList() { //Logger::println("DtoEmptyConstInitList()"); Dsymbol* dsym; while (!gIR->constInitList.empty()) { dsym = gIR->constInitList.front(); gIR->constInitList.pop_front(); DtoConstInitDsymbol(dsym); } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoEmptyDefineList() { //Logger::println("DtoEmptyDefineList()"); Dsymbol* dsym; while (!gIR->defineList.empty()) { dsym = gIR->defineList.front(); gIR->defineList.pop_front(); DtoDefineDsymbol(dsym); } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoEmptyAllLists() { for(;;) { Dsymbol* dsym; if (!gIR->resolveList.empty()) { dsym = gIR->resolveList.front(); gIR->resolveList.pop_front(); DtoResolveDsymbol(dsym); } else if (!gIR->declareList.empty()) { dsym = gIR->declareList.front(); gIR->declareList.pop_front(); DtoDeclareDsymbol(dsym); } else if (!gIR->constInitList.empty()) { dsym = gIR->constInitList.front(); gIR->constInitList.pop_front(); DtoConstInitDsymbol(dsym); } else if (!gIR->defineList.empty()) { dsym = gIR->defineList.front(); gIR->defineList.pop_front(); DtoDefineDsymbol(dsym); } else { break; } } } ////////////////////////////////////////////////////////////////////////////////////////// void DtoForceDeclareDsymbol(Dsymbol* dsym) { if (dsym->ir.declared) return; Logger::println("DtoForceDeclareDsymbol(%s)", dsym->toPrettyChars()); LOG_SCOPE; DtoResolveDsymbol(dsym); DtoEmptyResolveList(); DtoDeclareDsymbol(dsym); } ////////////////////////////////////////////////////////////////////////////////////////// void DtoForceConstInitDsymbol(Dsymbol* dsym) { if (dsym->ir.initialized) return; Logger::println("DtoForceConstInitDsymbol(%s)", dsym->toPrettyChars()); LOG_SCOPE; DtoResolveDsymbol(dsym); DtoEmptyResolveList(); DtoEmptyDeclareList(); DtoConstInitDsymbol(dsym); } ////////////////////////////////////////////////////////////////////////////////////////// void DtoForceDefineDsymbol(Dsymbol* dsym) { if (dsym->ir.defined) return; Logger::println("DtoForceDefineDsymbol(%s)", dsym->toPrettyChars()); LOG_SCOPE; DtoResolveDsymbol(dsym); DtoEmptyResolveList(); DtoEmptyDeclareList(); DtoEmptyConstInitList(); DtoDefineDsymbol(dsym); } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // DECLARATION EXP HELPER ////////////////////////////////////////////////////////////////////////////////////////*/ DValue* DtoDeclarationExp(Dsymbol* declaration) { Logger::print("DtoDeclarationExp: %s\n", declaration->toChars()); LOG_SCOPE; // variable declaration if (VarDeclaration* vd = declaration->isVarDeclaration()) { Logger::println("VarDeclaration"); // static if (vd->isDataseg()) { vd->toObjFile(0); // TODO: multiobj } else { if (global.params.llvmAnnotate) DtoAnnotation(declaration->toChars()); Logger::println("vdtype = %s", vd->type->toChars()); // referenced by nested delegate? if (vd->nestedref) { Logger::println("has nestedref set"); assert(vd->ir.irLocal); // alloca as usual is no value already if (!vd->ir.irLocal->value) { vd->ir.irLocal->value = DtoAlloca(DtoType(vd->type), vd->toChars()); } // store the address into the nested vars array assert(vd->ir.irLocal->nestedIndex >= 0); LLValue* gep = DtoGEPi(gIR->func()->decl->ir.irFunc->nestedVar, 0, vd->ir.irLocal->nestedIndex); assert(isaPointer(vd->ir.irLocal->value)); LLValue* val = DtoBitCast(vd->ir.irLocal->value, getVoidPtrType()); DtoStore(val, gep); } // normal stack variable, allocate storage on the stack if it has not already been done else if(!vd->ir.irLocal) { const LLType* lltype = DtoType(vd->type); llvm::Value* allocainst; if(gTargetData->getTypeSizeInBits(lltype) == 0) allocainst = llvm::ConstantPointerNull::get(getPtrToType(lltype)); else allocainst = DtoAlloca(lltype, vd->toChars()); //allocainst->setAlignment(vd->type->alignsize()); // TODO vd->ir.irLocal = new IrLocal(vd); vd->ir.irLocal->value = allocainst; if (global.params.symdebug) { DtoDwarfLocalVariable(allocainst, vd); } } else { assert(vd->ir.irLocal->value); } Logger::cout() << "llvm value for decl: " << *vd->ir.irLocal->value << '\n'; DValue* ie = DtoInitializer(vd->ir.irLocal->value, vd->init); } return new DVarValue(vd->type, vd, vd->ir.getIrValue()); } // struct declaration else if (StructDeclaration* s = declaration->isStructDeclaration()) { Logger::println("StructDeclaration"); DtoForceConstInitDsymbol(s); } // function declaration else if (FuncDeclaration* f = declaration->isFuncDeclaration()) { Logger::println("FuncDeclaration"); DtoForceDeclareDsymbol(f); } // alias declaration else if (AliasDeclaration* a = declaration->isAliasDeclaration()) { Logger::println("AliasDeclaration - no work"); // do nothing } // enum else if (EnumDeclaration* e = declaration->isEnumDeclaration()) { Logger::println("EnumDeclaration - no work"); // do nothing } // class else if (ClassDeclaration* e = declaration->isClassDeclaration()) { Logger::println("ClassDeclaration"); DtoForceConstInitDsymbol(e); } // typedef else if (TypedefDeclaration* tdef = declaration->isTypedefDeclaration()) { Logger::println("TypedefDeclaration"); DtoTypeInfoOf(tdef->type, false); } // attribute declaration else if (AttribDeclaration* a = declaration->isAttribDeclaration()) { Logger::println("AttribDeclaration"); for (int i=0; i < a->decl->dim; ++i) { DtoDeclarationExp((Dsymbol*)a->decl->data[i]); } } // mixin declaration else if (TemplateMixin* m = declaration->isTemplateMixin()) { Logger::println("TemplateMixin"); for (int i=0; i < m->members->dim; ++i) { Dsymbol* mdsym = (Dsymbol*)m->members->data[i]; DtoDeclarationExp(mdsym); } } // unsupported declaration else { error(declaration->loc, "Unimplemented Declaration type for DeclarationExp. kind: %s", declaration->kind()); assert(0); } return NULL; } /****************************************************************************************/ /*//////////////////////////////////////////////////////////////////////////////////////// // INITIALIZER HELPERS ////////////////////////////////////////////////////////////////////////////////////////*/ LLConstant* DtoConstInitializer(Type* type, Initializer* init) { LLConstant* _init = 0; // may return zero if (!init) { Logger::println("const default initializer for %s", type->toChars()); _init = DtoDefaultInit(type); } else if (ExpInitializer* ex = init->isExpInitializer()) { Logger::println("const expression initializer"); _init = ex->exp->toConstElem(gIR); } else if (StructInitializer* si = init->isStructInitializer()) { Logger::println("const struct initializer"); _init = DtoConstStructInitializer(si); } else if (ArrayInitializer* ai = init->isArrayInitializer()) { Logger::println("const array initializer"); _init = DtoConstArrayInitializer(ai); } else if (init->isVoidInitializer()) { Logger::println("const void initializer"); const LLType* ty = DtoType(type); _init = llvm::Constant::getNullValue(ty); } else { Logger::println("unsupported const initializer: %s", init->toChars()); } return _init; } ////////////////////////////////////////////////////////////////////////////////////////// LLConstant* DtoConstFieldInitializer(Type* t, Initializer* init) { Logger::println("DtoConstFieldInitializer"); LOG_SCOPE; const LLType* _type = DtoType(t); LLConstant* _init = DtoConstInitializer(t, init); assert(_init); if (_type != _init->getType()) { Logger::cout() << "field init is: " << *_init << " type should be " << *_type << '\n'; if (t->ty == Tsarray) { const LLArrayType* arrty = isaArray(_type); uint64_t n = arrty->getNumElements(); std::vector<LLConstant*> vals(n,_init); _init = llvm::ConstantArray::get(arrty, vals); } else if (t->ty == Tarray) { assert(isaStruct(_type)); _init = llvm::ConstantAggregateZero::get(_type); } else if (t->ty == Tstruct) { const LLStructType* structty = isaStruct(_type); TypeStruct* ts = (TypeStruct*)t; assert(ts); assert(ts->sym); assert(ts->sym->ir.irStruct->constInit); _init = ts->sym->ir.irStruct->constInit; } else if (t->ty == Tclass) { _init = llvm::Constant::getNullValue(_type); } else { Logger::println("failed for type %s", t->toChars()); assert(0); } } return _init; } ////////////////////////////////////////////////////////////////////////////////////////// DValue* DtoInitializer(LLValue* target, Initializer* init) { if (!init) return 0; else if (ExpInitializer* ex = init->isExpInitializer()) { Logger::println("expression initializer"); assert(ex->exp); DValue* res = ex->exp->toElem(gIR); assert(llvm::isa<llvm::PointerType>(target->getType()) && "init target must be ptr"); const LLType* targetty = target->getType()->getContainedType(0); if(targetty == LLType::X86_FP80Ty) { Logger::println("setting fp80 padding to zero"); LLValue* castv = DtoBitCast(target, getPtrToType(LLType::Int16Ty)); LLValue* padding = DtoGEPi1(castv, 5); DtoStore(llvm::Constant::getNullValue(LLType::Int16Ty), padding); } else if(targetty == DtoComplexType(Type::tcomplex80)) { Logger::println("setting complex fp80 padding to zero"); LLValue* castv = DtoBitCast(target, getPtrToType(LLType::Int16Ty)); LLValue* padding = DtoGEPi1(castv, 5); DtoStore(llvm::Constant::getNullValue(LLType::Int16Ty), padding); padding = DtoGEPi1(castv, 11); DtoStore(llvm::Constant::getNullValue(LLType::Int16Ty), padding); } return res; } else if (init->isVoidInitializer()) { // do nothing } else { Logger::println("unsupported initializer: %s", init->toChars()); assert(0); } return 0; } ////////////////////////////////////////////////////////////////////////////////////////// static LLConstant* expand_to_sarray(Type *base, Expression* exp) { Logger::println("building type %s from expression (%s) of type %s", base->toChars(), exp->toChars(), exp->type->toChars()); const LLType* dstTy = DtoType(base); Logger::cout() << "final llvm type requested: " << *dstTy << '\n'; LLConstant* val = exp->toConstElem(gIR); Type* expbase = exp->type->toBasetype(); Type* t = base; LLSmallVector<size_t, 4> dims; while(1) { if (t->equals(expbase)) break; assert(t->ty == Tsarray); TypeSArray* tsa = (TypeSArray*)t; dims.push_back(tsa->dim->toInteger()); assert(t->next); t = t->next->toBasetype(); } size_t i = dims.size(); assert(i); std::vector<LLConstant*> inits; while (i--) { const LLArrayType* arrty = LLArrayType::get(val->getType(), dims[i]); inits.clear(); inits.insert(inits.end(), dims[i], val); val = LLConstantArray::get(arrty, inits); } return val; } LLConstant* DtoDefaultInit(Type* type) { Expression* exp = type->defaultInit(); Type* expbase = exp->type->toBasetype(); Type* base = type->toBasetype(); // if not the same basetypes, we won't get the same llvm types either if (!expbase->equals(base)) { if (base->ty == Tsarray) { Logger::println("type is a static array, building constant array initializer from single value"); return expand_to_sarray(base, exp); } else { error("cannot yet convert default initializer %s from type %s to %s", exp->toChars(), exp->type->toChars(), type->toChars()); fatal(); } assert(0); } return exp->toConstElem(gIR); } ////////////////////////////////////////////////////////////////////////////////////////// void DtoAnnotation(const char* str) { std::string s("CODE: "); s.append(str); char* p = &s[0]; while (*p) { if (*p == '"') *p = '\''; ++p; } // create a noop with the code as the result name! gIR->ir->CreateAnd(DtoConstSize_t(0),DtoConstSize_t(0),s.c_str()); } ////////////////////////////////////////////////////////////////////////////////////////// LLConstant* DtoTypeInfoOf(Type* type, bool base) { type = type->merge(); // needed.. getTypeInfo does the same type->getTypeInfo(NULL); TypeInfoDeclaration* tidecl = type->vtinfo; assert(tidecl); DtoForceDeclareDsymbol(tidecl); assert(tidecl->ir.irGlobal != NULL); LLConstant* c = isaConstant(tidecl->ir.irGlobal->value); assert(c != NULL); if (base) return llvm::ConstantExpr::getBitCast(c, DtoType(Type::typeinfo->type)); return c; } ////////////////////////////////////////////////////////////////////////////////////////// LLValue* DtoBoolean(Loc& loc, DValue* dval) { Type* dtype = dval->getType()->toBasetype(); TY ty = dtype->ty; // integer if (dtype->isintegral()) { LLValue* val = dval->getRVal(); if (val->getType() == LLType::Int1Ty) return val; else { LLValue* zero = LLConstantInt::get(val->getType(), 0, false); return gIR->ir->CreateICmpNE(val, zero, "tmp"); } } // complex else if (dtype->iscomplex()) { return DtoComplexEquals(loc, TOKnotequal, dval, DtoNullValue(dtype)); } // floating point else if (dtype->isfloating()) { LLValue* val = dval->getRVal(); LLValue* zero = LLConstant::getNullValue(val->getType()); return gIR->ir->CreateFCmpONE(val, zero, "tmp"); } // pointer/class else if (ty == Tpointer || ty == Tclass) { LLValue* val = dval->getRVal(); LLValue* zero = LLConstant::getNullValue(val->getType()); Logger::cout() << "val: " << *val << '\n'; Logger::cout() << "zero: " << *zero << '\n'; return gIR->ir->CreateICmpNE(val, zero, "tmp"); } // dynamic array else if (ty == Tarray) { // return (arr.length != 0) return gIR->ir->CreateICmpNE(DtoArrayLen(dval), DtoConstSize_t(0), "tmp"); } // delegate else if (ty == Tdelegate) { // return (dg !is null) return DtoDelegateEquals(TOKnotequal, dval->getRVal(), NULL); } // unknown std::cout << "unsupported -> bool : " << dtype->toChars() << '\n'; assert(0); return 0; } ////////////////////////////////////////////////////////////////////////////////////////// void DtoOverloadedIntrinsicName(TemplateInstance* ti, TemplateDeclaration* td, std::string& name) { Logger::println("DtoOverloadedIntrinsicName"); LOG_SCOPE; Logger::println("template instance: %s", ti->toChars()); Logger::println("template declaration: %s", td->toChars()); Logger::println("intrinsic name: %s", td->intrinsicName.c_str()); // for now use the size in bits of the first template param in the instance assert(ti->tdtypes.dim == 1); Type* T = (Type*)ti->tdtypes.data[0]; char tmp[10]; if (T->toBasetype()->ty == Tbool) // otherwise we'd get a mismatch sprintf(tmp, "1"); else sprintf(tmp, "%d", T->size()*8); // replace # in name with bitsize name = td->intrinsicName; std::string needle("#"); size_t pos; while(std::string::npos != (pos = name.find(needle))) name.replace(pos, 1, tmp); Logger::println("final intrinsic name: %s", name.c_str()); }