mirror of
https://github.com/ldc-developers/ldc.git
synced 2025-04-30 07:00:46 +03:00
a5b3dd29b5
1) The last parameter of getGetElementPtr() has type bool. In some instances, a 2 is used as parameter. This is converted to true. 2) Several loops use int instead of unsigned. This causes warning about signed/unsigned mismatch. Curiously, only Visual C++ complains about this. Nevertheless I think that the warnings should be fixed.
1853 lines
59 KiB
C++
1853 lines
59 KiB
C++
#include "gen/llvmhelpers.h"
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#include "gen/llvm.h"
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#include "mars.h"
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#include "init.h"
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#include "id.h"
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#include "expression.h"
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#include "template.h"
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#include "module.h"
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#include "gen/tollvm.h"
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#include "gen/irstate.h"
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#include "gen/runtime.h"
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#include "gen/logger.h"
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#include "gen/arrays.h"
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#include "gen/dvalue.h"
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#include "gen/complex.h"
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#include "gen/classes.h"
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#include "gen/functions.h"
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#include "gen/typeinf.h"
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#include "gen/todebug.h"
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#include "gen/cl_options.h"
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#include "gen/nested.h"
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#include "ir/irmodule.h"
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#include <stack>
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/****************************************************************************************/
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/*////////////////////////////////////////////////////////////////////////////////////////
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// DYNAMIC MEMORY HELPERS
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////////////////////////////////////////////////////////////////////////////////////////*/
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LLValue* DtoNew(Type* newtype)
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{
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// get runtime function
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_allocmemoryT");
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// get type info
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LLConstant* ti = DtoTypeInfoOf(newtype);
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assert(isaPointer(ti));
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// call runtime allocator
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LLValue* mem = gIR->CreateCallOrInvoke(fn, ti, ".gc_mem").getInstruction();
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// cast
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return DtoBitCast(mem, getPtrToType(DtoType(newtype)), ".gc_mem");
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}
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void DtoDeleteMemory(LLValue* ptr)
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{
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// get runtime function
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delmemory");
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// build args
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LLSmallVector<LLValue*,1> arg;
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arg.push_back(DtoBitCast(ptr, getVoidPtrType(), ".tmp"));
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// call
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gIR->CreateCallOrInvoke(fn, arg);
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}
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void DtoDeleteClass(LLValue* inst)
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{
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// get runtime function
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delclass");
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// build args
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LLSmallVector<LLValue*,1> arg;
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#if DMDV2
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// druntime wants a pointer to object
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LLValue *ptr = DtoRawAlloca(inst->getType(), 0, "objectPtr");
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DtoStore(inst, ptr);
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inst = ptr;
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#endif
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arg.push_back(DtoBitCast(inst, fn->getFunctionType()->getParamType(0), ".tmp"));
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// call
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gIR->CreateCallOrInvoke(fn, arg);
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}
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void DtoDeleteInterface(LLValue* inst)
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{
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// get runtime function
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delinterface");
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// build args
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LLSmallVector<LLValue*,1> arg;
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arg.push_back(DtoBitCast(inst, fn->getFunctionType()->getParamType(0), ".tmp"));
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// call
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gIR->CreateCallOrInvoke(fn, arg);
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}
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#if DMDV2
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void DtoDeleteArray(DValue* arr)
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{
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// get runtime function
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delarray_t");
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// build args
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LLSmallVector<LLValue*,2> arg;
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arg.push_back(DtoBitCast(arr->getLVal(), fn->getFunctionType()->getParamType(0)));
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arg.push_back(DtoBitCast(DtoTypeInfoOf(arr->type->nextOf()), fn->getFunctionType()->getParamType(1)));
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// call
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gIR->CreateCallOrInvoke(fn, arg);
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}
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#else
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void DtoDeleteArray(DValue* arr)
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{
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// get runtime function
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_delarray");
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// build args
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LLSmallVector<LLValue*,2> arg;
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arg.push_back(DtoArrayLen(arr));
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arg.push_back(DtoBitCast(DtoArrayPtr(arr), getVoidPtrType(), ".tmp"));
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// call
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gIR->CreateCallOrInvoke(fn, arg);
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}
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#endif
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/****************************************************************************************/
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/*////////////////////////////////////////////////////////////////////////////////////////
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// ALLOCA HELPERS
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////////////////////////////////////////////////////////////////////////////////////////*/
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llvm::AllocaInst* DtoAlloca(Type* type, const char* name)
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{
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LLType* lltype = DtoType(type);
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llvm::AllocaInst* ai = new llvm::AllocaInst(lltype, name, gIR->topallocapoint());
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ai->setAlignment(type->alignsize());
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return ai;
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}
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llvm::AllocaInst* DtoArrayAlloca(Type* type, unsigned arraysize, const char* name)
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{
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LLType* lltype = DtoType(type);
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llvm::AllocaInst* ai = new llvm::AllocaInst(
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lltype, DtoConstUint(arraysize), name, gIR->topallocapoint());
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ai->setAlignment(type->alignsize());
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return ai;
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}
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llvm::AllocaInst* DtoRawAlloca(LLType* lltype, size_t alignment, const char* name)
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{
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llvm::AllocaInst* ai = new llvm::AllocaInst(lltype, name, gIR->topallocapoint());
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if (alignment)
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ai->setAlignment(alignment);
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return ai;
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}
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LLValue* DtoGcMalloc(LLType* lltype, const char* name)
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{
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// get runtime function
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_allocmemory");
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// parameters
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LLValue *size = DtoConstSize_t(getTypeAllocSize(lltype));
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// call runtime allocator
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LLValue* mem = gIR->CreateCallOrInvoke(fn, size, name).getInstruction();
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// cast
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return DtoBitCast(mem, getPtrToType(lltype), name);
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}
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/****************************************************************************************/
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/*////////////////////////////////////////////////////////////////////////////////////////
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// ASSERT HELPER
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////////////////////////////////////////////////////////////////////////////////////////*/
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void DtoAssert(Module* M, Loc loc, DValue* msg)
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{
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std::vector<LLValue*> args;
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// func
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const char* fname = msg ? "_d_assert_msg" : "_d_assert";
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llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, fname);
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// msg param
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if (msg)
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{
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args.push_back(msg->getRVal());
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}
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// file param
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// we might be generating for an imported template function
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const char* cur_file = M->srcfile->name->toChars();
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if (loc.filename && strcmp(loc.filename, cur_file) != 0)
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{
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args.push_back(DtoConstString(loc.filename));
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}
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else
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{
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IrModule* irmod = getIrModule(M);
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args.push_back(DtoLoad(irmod->fileName));
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}
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// line param
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LLConstant* c = DtoConstUint(loc.linnum);
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args.push_back(c);
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// call
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gIR->CreateCallOrInvoke(fn, args);
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#ifndef DISABLE_DEBUG_INFO
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// end debug info
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if (global.params.symdebug)
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DtoDwarfFuncEnd(gIR->func()->decl);
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#endif
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// after assert is always unreachable
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gIR->ir->CreateUnreachable();
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}
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/****************************************************************************************/
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/*////////////////////////////////////////////////////////////////////////////////////////
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// LABEL HELPER
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////////////////////////////////////////////////////////////////////////////////////////*/
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LabelStatement* DtoLabelStatement(Identifier* ident)
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{
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FuncDeclaration* fd = gIR->func()->decl;
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FuncDeclaration::LabelMap::iterator iter = fd->labmap.find(ident->toChars());
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if (iter == fd->labmap.end())
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{
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if (fd->returnLabel && fd->returnLabel->ident->equals(ident))
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{
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assert(fd->returnLabel->statement);
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return fd->returnLabel->statement;
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}
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return NULL;
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}
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return iter->second;
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}
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/****************************************************************************************/
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/*////////////////////////////////////////////////////////////////////////////////////////
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// GOTO HELPER
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////////////////////////////////////////////////////////////////////////////////////////*/
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void DtoGoto(Loc loc, Identifier* target, TryFinallyStatement* sourceFinally)
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{
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assert(!gIR->scopereturned());
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LabelStatement* lblstmt = DtoLabelStatement(target);
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if(!lblstmt) {
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error(loc, "the label %s does not exist", target->toChars());
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fatal();
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}
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// if the target label is inside inline asm, error
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if(lblstmt->asmLabel) {
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error(loc, "cannot goto to label %s inside an inline asm block", target->toChars());
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fatal();
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}
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// find target basic block
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std::string labelname = gIR->func()->gen->getScopedLabelName(target->toChars());
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llvm::BasicBlock*& targetBB = gIR->func()->gen->labelToBB[labelname];
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if (targetBB == NULL)
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targetBB = llvm::BasicBlock::Create(gIR->context(), "label_" + labelname, gIR->topfunc());
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// emit code for finallys between goto and label
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DtoEnclosingHandlers(loc, lblstmt);
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// goto into finally blocks is forbidden by the spec
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// but should work fine
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if(lblstmt->enclosingFinally != sourceFinally) {
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error(loc, "spec disallows goto into or out of finally block");
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fatal();
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}
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llvm::BranchInst::Create(targetBB, gIR->scopebb());
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}
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/****************************************************************************************/
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/*////////////////////////////////////////////////////////////////////////////////////////
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// TRY-FINALLY, VOLATILE AND SYNCHRONIZED HELPER
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////////////////////////////////////////////////////////////////////////////////////////*/
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void EnclosingSynchro::emitCode(IRState * p)
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{
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if (s->exp)
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DtoLeaveMonitor(s->exp->toElem(p)->getRVal());
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else
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DtoLeaveCritical(s->llsync);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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void EnclosingVolatile::emitCode(IRState * p)
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{
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// store-load barrier
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DtoMemoryBarrier(false, false, true, false);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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void EnclosingTryFinally::emitCode(IRState * p)
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{
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if (tf->finalbody)
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{
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llvm::BasicBlock* oldpad = p->func()->gen->landingPad;
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p->func()->gen->landingPad = landingPad;
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tf->finalbody->toIR(p);
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p->func()->gen->landingPad = oldpad;
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////
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void DtoEnclosingHandlers(Loc loc, Statement* target)
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{
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// labels are a special case: they are not required to enclose the current scope
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// for them we use the enclosing scope handler as a reference point
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LabelStatement* lblstmt = target ? target->isLabelStatement() : 0;
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if (lblstmt)
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target = lblstmt->enclosingScopeExit;
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// figure out up until what handler we need to emit
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FuncGen::TargetScopeVec::reverse_iterator targetit = gIR->func()->gen->targetScopes.rbegin();
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FuncGen::TargetScopeVec::reverse_iterator it_end = gIR->func()->gen->targetScopes.rend();
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while(targetit != it_end) {
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if (targetit->s == target) {
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break;
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}
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++targetit;
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}
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if (target && targetit == it_end) {
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if (lblstmt)
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error(loc, "cannot goto into try, volatile or synchronized statement at %s", target->loc.toChars());
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else
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error(loc, "internal error, cannot find jump path to statement at %s", target->loc.toChars());
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return;
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}
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//
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// emit code for enclosing handlers
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//
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// since the labelstatements possibly inside are private
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// and might already exist push a label scope
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gIR->func()->gen->pushUniqueLabelScope("enclosing");
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FuncGen::TargetScopeVec::reverse_iterator it = gIR->func()->gen->targetScopes.rbegin();
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while (it != targetit) {
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if (it->enclosinghandler)
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it->enclosinghandler->emitCode(gIR);
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++it;
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}
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gIR->func()->gen->popLabelScope();
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}
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/****************************************************************************************/
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/*////////////////////////////////////////////////////////////////////////////////////////
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// SYNCHRONIZED SECTION HELPERS
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////////////////////////////////////////////////////////////////////////////////////////*/
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void DtoEnterCritical(LLValue* g)
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{
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LLFunction* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_criticalenter");
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gIR->CreateCallOrInvoke(fn, g);
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}
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void DtoLeaveCritical(LLValue* g)
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{
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LLFunction* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_criticalexit");
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gIR->CreateCallOrInvoke(fn, g);
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}
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void DtoEnterMonitor(LLValue* v)
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{
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LLFunction* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_monitorenter");
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v = DtoBitCast(v, fn->getFunctionType()->getParamType(0));
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gIR->CreateCallOrInvoke(fn, v);
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}
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void DtoLeaveMonitor(LLValue* v)
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{
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LLFunction* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_monitorexit");
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v = DtoBitCast(v, fn->getFunctionType()->getParamType(0));
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gIR->CreateCallOrInvoke(fn, v);
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}
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/****************************************************************************************/
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/*////////////////////////////////////////////////////////////////////////////////////////
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// ASSIGNMENT HELPER (store this in that)
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////////////////////////////////////////////////////////////////////////////////////////*/
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// is this a good approach at all ?
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void DtoAssign(Loc& loc, DValue* lhs, DValue* rhs, int op)
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{
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Logger::println("DtoAssign(...);\n");
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LOG_SCOPE;
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Type* t = lhs->getType()->toBasetype();
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Type* t2 = rhs->getType()->toBasetype();
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if (t->ty == Tstruct) {
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if (!stripModifiers(t)->equals(stripModifiers(t2))) {
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// FIXME: use 'rhs' for something !?!
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DtoAggrZeroInit(lhs->getLVal());
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#if DMDV2
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TypeStruct *ts = (TypeStruct*) lhs->getType();
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if (ts->sym->isNested() && ts->sym->vthis)
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DtoResolveNestedContext(loc, ts->sym, lhs->getLVal());
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#endif
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}
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else {
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DtoAggrCopy(lhs->getLVal(), rhs->getRVal());
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}
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}
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else if (t->ty == Tarray) {
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// lhs is slice
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if (DSliceValue* s = lhs->isSlice()) {
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if (t->nextOf()->toBasetype()->equals(t2)) {
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DtoArrayInit(loc, lhs, rhs, op);
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}
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#if DMDV2
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else if (DtoArrayElementType(t)->equals(stripModifiers(t2))) {
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DtoArrayInit(loc, s, rhs, op);
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}
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else if (op != -1 && op != TOKblit && arrayNeedsPostblit(t)) {
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DtoArrayAssign(s, rhs, op);
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}
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#endif
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else if (DSliceValue *s2 = rhs->isSlice()) {
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DtoArrayCopySlices(s, s2);
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}
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else {
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DtoArrayCopyToSlice(s, rhs);
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}
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}
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// rhs is slice
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else if (DSliceValue* s = rhs->isSlice()) {
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//assert(s->getType()->toBasetype() == lhs->getType()->toBasetype());
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DtoSetArray(lhs,DtoArrayLen(s),DtoArrayPtr(s));
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}
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// null
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else if (rhs->isNull()) {
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DtoSetArrayToNull(lhs->getLVal());
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}
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// reference assignment
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else if (t2->ty == Tarray) {
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DtoStore(rhs->getRVal(), lhs->getLVal());
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}
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// some implicitly converting ref assignment
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else {
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DtoSetArray(lhs, DtoArrayLen(rhs), DtoArrayPtr(rhs));
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}
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}
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else if (t->ty == Tsarray) {
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// T[n] = T
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if (t->nextOf()->toBasetype()->equals(t2)) {
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DtoArrayInit(loc, lhs, rhs, op);
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}
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#if DMDV2
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else if (DtoArrayElementType(t)->equals(stripModifiers(t2))) {
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DtoArrayInit(loc, lhs, rhs, op);
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}
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else if (op != -1 && op != TOKblit && arrayNeedsPostblit(t)) {
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DtoArrayAssign(lhs, rhs, op);
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}
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#endif
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// T[n] = T[n]
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else if (DtoType(lhs->getType()) == DtoType(rhs->getType())) {
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DtoStaticArrayCopy(lhs->getLVal(), rhs->getRVal());
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}
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// T[n] = T[] - generally only generated by frontend in rare cases
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else if (t2->ty == Tarray && t->nextOf()->toBasetype()->equals(t2->nextOf()->toBasetype())) {
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DtoMemCpy(lhs->getLVal(), DtoArrayPtr(rhs), DtoArrayLen(rhs));
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} else {
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assert(0 && "Unimplemented static array assign!");
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}
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}
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else if (t->ty == Tdelegate) {
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LLValue* l = lhs->getLVal();
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LLValue* r = rhs->getRVal();
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if (Logger::enabled())
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Logger::cout() << "assign\nlhs: " << *l << "rhs: " << *r << '\n';
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DtoStore(r, l);
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}
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else if (t->ty == Tclass) {
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assert(t2->ty == Tclass);
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LLValue* l = lhs->getLVal();
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LLValue* r = rhs->getRVal();
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if (Logger::enabled())
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{
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Logger::cout() << "l : " << *l << '\n';
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Logger::cout() << "r : " << *r << '\n';
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}
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r = DtoBitCast(r, l->getType()->getContainedType(0));
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DtoStore(r, l);
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}
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else if (t->iscomplex()) {
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LLValue* dst = lhs->getLVal();
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LLValue* src = DtoCast(loc, rhs, lhs->getType())->getRVal();
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DtoStore(src, dst);
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}
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else {
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LLValue* l = lhs->getLVal();
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LLValue* r = rhs->getRVal();
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if (Logger::enabled())
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Logger::cout() << "assign\nlhs: " << *l << "rhs: " << *r << '\n';
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LLType* lit = l->getType()->getContainedType(0);
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if (r->getType() != lit) {
|
|
r = DtoCast(loc, rhs, lhs->getType())->getRVal();
|
|
if (Logger::enabled())
|
|
Logger::cout() << "really assign\nlhs: " << *l << "rhs: " << *r << '\n';
|
|
#if 1
|
|
if(r->getType() != lit) // It's wierd but it happens. TODO: try to remove this hack
|
|
r = DtoBitCast(r, lit);
|
|
#else
|
|
assert(r->getType() == lit);
|
|
#endif
|
|
}
|
|
gIR->ir->CreateStore(r, l);
|
|
}
|
|
|
|
#ifndef DISABLE_DEBUG_INFO
|
|
DVarValue *var = lhs->isVar();
|
|
VarDeclaration *varDecl = var ? var->var : 0;
|
|
if (global.params.symdebug && varDecl && varDecl->debugVariable)
|
|
DtoDwarfValue(rhs->getRVal(), lhs->isVar()->var);
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************************/
|
|
/*////////////////////////////////////////////////////////////////////////////////////////
|
|
// NULL VALUE HELPER
|
|
////////////////////////////////////////////////////////////////////////////////////////*/
|
|
|
|
DValue* DtoNullValue(Type* type)
|
|
{
|
|
Type* basetype = type->toBasetype();
|
|
TY basety = basetype->ty;
|
|
LLType* lltype = DtoType(basetype);
|
|
|
|
// complex, needs to be first since complex are also floating
|
|
if (basetype->iscomplex())
|
|
{
|
|
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->nextOf())));
|
|
return new DSliceValue(type, len, ptr);
|
|
}
|
|
// delegate
|
|
else if (basety == Tdelegate)
|
|
{
|
|
return new DNullValue(type, LLConstant::getNullValue(lltype));
|
|
}
|
|
|
|
// unknown
|
|
error("unsupported: null value for %s", type->toChars());
|
|
assert(0);
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
/****************************************************************************************/
|
|
/*////////////////////////////////////////////////////////////////////////////////////////
|
|
// CASTING HELPERS
|
|
////////////////////////////////////////////////////////////////////////////////////////*/
|
|
|
|
DValue* DtoCastInt(Loc& loc, DValue* val, Type* _to)
|
|
{
|
|
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->ty == Tbool) {
|
|
LLValue* zero = LLConstantInt::get(rval->getType(), 0, false);
|
|
rval = gIR->ir->CreateICmpNE(rval, zero, "tmp");
|
|
}
|
|
else if (to->isintegral()) {
|
|
if (fromsz < tosz || from->ty == Tbool) {
|
|
if (Logger::enabled())
|
|
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) {
|
|
if (Logger::enabled())
|
|
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)
|
|
{
|
|
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();
|
|
if (Logger::enabled())
|
|
Logger::cout() << "src: " << *src << "to type: " << *tolltype << '\n';
|
|
rval = DtoBitCast(src, tolltype);
|
|
}
|
|
else if (totype->ty == Tbool) {
|
|
LLValue* src = val->getRVal();
|
|
LLValue* zero = LLConstant::getNullValue(src->getType());
|
|
rval = gIR->ir->CreateICmpNE(src, zero, "tmp");
|
|
}
|
|
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;
|
|
|
|
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->ty == Tbool) {
|
|
rval = val->getRVal();
|
|
LLValue* zero = LLConstant::getNullValue(rval->getType());
|
|
rval = gIR->ir->CreateFCmpUNE(rval, zero, "tmp");
|
|
}
|
|
else 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)
|
|
{
|
|
if (to->toBasetype()->ty == Tdelegate)
|
|
{
|
|
return DtoPaintType(loc, val, to);
|
|
}
|
|
else if (to->toBasetype()->ty == Tbool)
|
|
{
|
|
return new DImValue(to, DtoDelegateEquals(TOKnotequal, val->getRVal(), NULL));
|
|
}
|
|
else
|
|
{
|
|
error(loc, "invalid cast from '%s' to '%s'", val->getType()->toChars(), to->toChars());
|
|
fatal();
|
|
}
|
|
}
|
|
|
|
DValue* DtoCast(Loc& loc, DValue* val, Type* to)
|
|
{
|
|
Type* fromtype = val->getType()->toBasetype();
|
|
Type* totype = to->toBasetype();
|
|
|
|
#if DMDV2
|
|
if (fromtype->ty == Taarray)
|
|
fromtype = ((TypeAArray*)fromtype)->getImpl()->type;
|
|
if (totype->ty == Taarray)
|
|
totype = ((TypeAArray*)totype)->getImpl()->type;
|
|
#endif
|
|
|
|
if (fromtype->equals(totype))
|
|
return val;
|
|
|
|
Logger::println("Casting from '%s' to '%s'", fromtype->toChars(), to->toChars());
|
|
LOG_SCOPE;
|
|
|
|
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();
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
DValue* DtoPaintType(Loc& loc, DValue* val, Type* to)
|
|
{
|
|
Type* from = val->getType()->toBasetype();
|
|
Logger::println("repainting from '%s' to '%s'", from->toChars(), to->toChars());
|
|
|
|
if (from->ty == Tarray)
|
|
{
|
|
Type* at = to->toBasetype();
|
|
assert(at->ty == Tarray);
|
|
Type* elem = at->nextOf()->pointerTo();
|
|
if (DSliceValue* slice = val->isSlice())
|
|
{
|
|
return new DSliceValue(to, slice->len, DtoBitCast(slice->ptr, DtoType(elem)));
|
|
}
|
|
else if (val->isLVal())
|
|
{
|
|
LLValue* ptr = val->getLVal();
|
|
ptr = DtoBitCast(ptr, DtoType(at->pointerTo()));
|
|
return new DVarValue(to, ptr);
|
|
}
|
|
else
|
|
{
|
|
LLValue *len, *ptr;
|
|
len = DtoArrayLen(val);
|
|
ptr = DtoArrayPtr(val);
|
|
ptr = DtoBitCast(ptr, DtoType(elem));
|
|
return new DImValue(to, DtoAggrPair(len, ptr, "tmp"));
|
|
}
|
|
}
|
|
else if (from->ty == Tdelegate)
|
|
{
|
|
Type* dgty = to->toBasetype();
|
|
assert(dgty->ty == Tdelegate);
|
|
if (val->isLVal())
|
|
{
|
|
LLValue* ptr = val->getLVal();
|
|
assert(isaPointer(ptr));
|
|
ptr = DtoBitCast(ptr, getPtrToType(DtoType(dgty)));
|
|
if (Logger::enabled())
|
|
Logger::cout() << "dg ptr: " << *ptr << '\n';
|
|
return new DVarValue(to, ptr);
|
|
}
|
|
else
|
|
{
|
|
LLValue* dg = val->getRVal();
|
|
LLValue* context = gIR->ir->CreateExtractValue(dg, 0, ".context");
|
|
LLValue* funcptr = gIR->ir->CreateExtractValue(dg, 1, ".funcptr");
|
|
funcptr = DtoBitCast(funcptr, DtoType(dgty)->getContainedType(1));
|
|
LLValue* aggr = DtoAggrPair(context, funcptr, "tmp");
|
|
if (Logger::enabled())
|
|
Logger::cout() << "dg: " << *aggr << '\n';
|
|
return new DImValue(to, aggr);
|
|
}
|
|
}
|
|
else if (from->ty == Tpointer || from->ty == Tclass || from->ty == Taarray)
|
|
{
|
|
Type* b = to->toBasetype();
|
|
assert(b->ty == Tpointer || b->ty == Tclass || b->ty == Taarray);
|
|
LLValue* ptr = DtoBitCast(val->getRVal(), DtoType(b));
|
|
return new DImValue(to, ptr);
|
|
}
|
|
else
|
|
{
|
|
// assert(!val->isLVal()); TODO: what is it needed for?
|
|
assert(DtoType(to) == DtoType(to));
|
|
return new DImValue(to, val->getRVal());
|
|
}
|
|
}
|
|
|
|
/****************************************************************************************/
|
|
/*////////////////////////////////////////////////////////////////////////////////////////
|
|
// TEMPLATE HELPERS
|
|
////////////////////////////////////////////////////////////////////////////////////////*/
|
|
|
|
TemplateInstance* DtoIsTemplateInstance(Dsymbol* s)
|
|
{
|
|
if (!s) return NULL;
|
|
if (s->isTemplateInstance() && !s->isTemplateMixin())
|
|
return s->isTemplateInstance();
|
|
else if (s->parent)
|
|
return DtoIsTemplateInstance(s->parent);
|
|
return NULL;
|
|
}
|
|
|
|
/****************************************************************************************/
|
|
/*////////////////////////////////////////////////////////////////////////////////////////
|
|
// 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 DtoConstInitGlobal(VarDeclaration* vd)
|
|
{
|
|
vd->codegen(Type::sir);
|
|
|
|
if (vd->ir.initialized) return;
|
|
vd->ir.initialized = gIR->dmodule;
|
|
|
|
Logger::println("DtoConstInitGlobal(%s) @ %s", vd->toChars(), vd->loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
// build the initializer
|
|
LLConstant* initVal = DtoConstInitializer(vd->loc, vd->type, vd->init);
|
|
|
|
// set the initializer if appropriate
|
|
IrGlobal* glob = vd->ir.irGlobal;
|
|
llvm::GlobalVariable* gvar = llvm::cast<llvm::GlobalVariable>(glob->value);
|
|
|
|
//if (LLStructType *st = isaStruct(glob->type)) {
|
|
// st->setBody(initVal);
|
|
//}
|
|
|
|
assert(!glob->constInit);
|
|
glob->constInit = initVal;
|
|
|
|
// assign the initializer
|
|
if (!(vd->storage_class & STCextern) && mustDefineSymbol(vd))
|
|
{
|
|
if (Logger::enabled())
|
|
{
|
|
Logger::println("setting initializer");
|
|
Logger::cout() << "global: " << *gvar << '\n';
|
|
#if 0
|
|
Logger::cout() << "init: " << *initVal << '\n';
|
|
#endif
|
|
}
|
|
|
|
gvar->setInitializer(initVal);
|
|
|
|
#ifndef DISABLE_DEBUG_INFO
|
|
// do debug info
|
|
if (global.params.symdebug)
|
|
DtoDwarfGlobalVariable(gvar, vd);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/****************************************************************************************/
|
|
/*////////////////////////////////////////////////////////////////////////////////////////
|
|
// 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");
|
|
|
|
// if aliassym is set, this VarDecl is redone as an alias to another symbol
|
|
// this seems to be done to rewrite Tuple!(...) v;
|
|
// as a TupleDecl that contains a bunch of individual VarDecls
|
|
if (vd->aliassym)
|
|
return DtoDeclarationExp(vd->aliassym);
|
|
|
|
// static
|
|
if (vd->isDataseg())
|
|
{
|
|
vd->codegen(Type::sir);
|
|
}
|
|
else
|
|
{
|
|
if (global.params.llvmAnnotate)
|
|
DtoAnnotation(declaration->toChars());
|
|
|
|
Logger::println("vdtype = %s", vd->type->toChars());
|
|
|
|
// ref vardecls are generated when DMD lowers foreach to a for statement,
|
|
// and this is a hack to support them for this case only
|
|
if(vd->isRef())
|
|
{
|
|
if (!vd->ir.irLocal)
|
|
vd->ir.irLocal = new IrLocal(vd);
|
|
|
|
ExpInitializer* ex = vd->init->isExpInitializer();
|
|
assert(ex && "ref vars must have expression initializer");
|
|
assert(ex->exp);
|
|
AssignExp* as = ex->exp->isAssignExp();
|
|
assert(as && "ref vars must be initialized by an assign exp");
|
|
DValue *val = as->e2->toElem(gIR);
|
|
if (val->isLVal())
|
|
{
|
|
vd->ir.irLocal->value = val->getLVal();
|
|
}
|
|
else
|
|
{
|
|
LLValue *newVal = DtoAlloca(val->type);
|
|
DtoStore(val->getRVal(), newVal);
|
|
vd->ir.irLocal->value = newVal;
|
|
}
|
|
}
|
|
|
|
// referenced by nested delegate?
|
|
#if DMDV2
|
|
if (vd->nestedrefs.dim) {
|
|
#else
|
|
if (vd->nestedref) {
|
|
#endif
|
|
Logger::println("has nestedref set");
|
|
assert(vd->ir.irLocal);
|
|
DtoNestedInit(vd);
|
|
// is it already allocated?
|
|
} else if(vd->ir.irLocal) {
|
|
// nothing to do...
|
|
}
|
|
#if DMDV2
|
|
/* Named Return Value Optimization (NRVO):
|
|
T f(){
|
|
T ret; // &ret == hidden pointer
|
|
ret = ...
|
|
return ret; // NRVO.
|
|
}
|
|
*/
|
|
else if (gIR->func()->retArg && gIR->func()->decl->nrvo_can && gIR->func()->decl->nrvo_var == vd) {
|
|
vd->ir.irLocal = new IrLocal(vd);
|
|
vd->ir.irLocal->value = gIR->func()->retArg;
|
|
}
|
|
#endif
|
|
// normal stack variable, allocate storage on the stack if it has not already been done
|
|
else if(!vd->isRef()) {
|
|
vd->ir.irLocal = new IrLocal(vd);
|
|
|
|
#if DMDV2
|
|
/* NRVO again:
|
|
T t = f(); // t's memory address is taken hidden pointer
|
|
*/
|
|
ExpInitializer *ei = 0;
|
|
if (vd->type->toBasetype()->ty == Tstruct && vd->init &&
|
|
!!(ei = vd->init->isExpInitializer()))
|
|
{
|
|
if (ei->exp->op == TOKconstruct) {
|
|
AssignExp *ae = (AssignExp*)ei->exp;
|
|
if (ae->e2->op == TOKcall) {
|
|
CallExp *ce = (CallExp *)ae->e2;
|
|
TypeFunction *tf = (TypeFunction *)ce->e1->type->toBasetype();
|
|
if (tf->ty == Tfunction && tf->retStyle() == RETstack) {
|
|
vd->ir.irLocal->value = ce->toElem(gIR)->getLVal();
|
|
goto Lexit;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
LLType* lltype = DtoType(vd->type);
|
|
|
|
llvm::Value* allocainst;
|
|
if(gTargetData->getTypeSizeInBits(lltype) == 0)
|
|
allocainst = llvm::ConstantPointerNull::get(getPtrToType(lltype));
|
|
else
|
|
allocainst = DtoAlloca(vd->type, vd->toChars());
|
|
|
|
//allocainst->setAlignment(vd->type->alignsize()); // TODO
|
|
vd->ir.irLocal->value = allocainst;
|
|
|
|
#ifndef DISABLE_DEBUG_INFO
|
|
if (global.params.symdebug)
|
|
DtoDwarfLocalVariable(allocainst, vd);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
assert(vd->ir.irLocal->value);
|
|
}
|
|
|
|
if (Logger::enabled())
|
|
Logger::cout() << "llvm value for decl: " << *vd->ir.irLocal->value << '\n';
|
|
if (!vd->isRef())
|
|
DtoInitializer(vd->ir.irLocal->value, vd->init); // TODO: Remove altogether?
|
|
|
|
#if DMDV2
|
|
Lexit:
|
|
/* Mark the point of construction of a variable that needs to be destructed.
|
|
*/
|
|
if (vd->edtor && !vd->noscope)
|
|
{
|
|
// Put vd on list of things needing destruction
|
|
gIR->varsInScope().push_back(vd);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return new DVarValue(vd->type, vd, vd->ir.getIrValue());
|
|
}
|
|
// struct declaration
|
|
else if (StructDeclaration* s = declaration->isStructDeclaration())
|
|
{
|
|
Logger::println("StructDeclaration");
|
|
s->codegen(Type::sir);
|
|
}
|
|
// function declaration
|
|
else if (FuncDeclaration* f = declaration->isFuncDeclaration())
|
|
{
|
|
Logger::println("FuncDeclaration");
|
|
f->codegen(Type::sir);
|
|
}
|
|
// alias declaration
|
|
else if (declaration->isAliasDeclaration())
|
|
{
|
|
Logger::println("AliasDeclaration - no work");
|
|
// do nothing
|
|
}
|
|
// enum
|
|
else if (declaration->isEnumDeclaration())
|
|
{
|
|
Logger::println("EnumDeclaration - no work");
|
|
// do nothing
|
|
}
|
|
// class
|
|
else if (ClassDeclaration* e = declaration->isClassDeclaration())
|
|
{
|
|
Logger::println("ClassDeclaration");
|
|
e->codegen(Type::sir);
|
|
}
|
|
// 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");
|
|
// choose the right set in case this is a conditional declaration
|
|
Array *d = a->include(NULL, NULL);
|
|
if (d)
|
|
for (unsigned i=0; i < d->dim; ++i)
|
|
{
|
|
DtoDeclarationExp((Dsymbol*)d->data[i]);
|
|
}
|
|
}
|
|
// mixin declaration
|
|
else if (TemplateMixin* m = declaration->isTemplateMixin())
|
|
{
|
|
Logger::println("TemplateMixin");
|
|
for (unsigned i=0; i < m->members->dim; ++i)
|
|
{
|
|
Dsymbol* mdsym = (Dsymbol*)m->members->data[i];
|
|
DtoDeclarationExp(mdsym);
|
|
}
|
|
}
|
|
// tuple declaration
|
|
else if (TupleDeclaration* tupled = declaration->isTupleDeclaration())
|
|
{
|
|
Logger::println("TupleDeclaration");
|
|
if(!tupled->isexp) {
|
|
error(declaration->loc, "don't know how to handle non-expression tuple decls yet");
|
|
assert(0);
|
|
}
|
|
|
|
assert(tupled->objects);
|
|
for (unsigned i=0; i < tupled->objects->dim; ++i)
|
|
{
|
|
DsymbolExp* exp = (DsymbolExp*)tupled->objects->data[i];
|
|
DtoDeclarationExp(exp->s);
|
|
}
|
|
}
|
|
// template
|
|
else if (TemplateDeclaration* t = declaration->isTemplateDeclaration())
|
|
{
|
|
Logger::println("TemplateDeclaration");
|
|
// do nothing
|
|
}
|
|
// unsupported declaration
|
|
else
|
|
{
|
|
error(declaration->loc, "Unimplemented Declaration type for DeclarationExp. kind: %s", declaration->kind());
|
|
assert(0);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
// does pretty much the same as DtoDeclarationExp, except it doesn't initialize, and only handles var declarations
|
|
LLValue* DtoRawVarDeclaration(VarDeclaration* var, LLValue* addr)
|
|
{
|
|
// we don't handle globals with this one
|
|
assert(!var->isDataseg());
|
|
|
|
// we don't handle aliases either
|
|
assert(!var->aliassym);
|
|
|
|
// alloca if necessary
|
|
if (!addr && (!var->ir.irLocal || !var->ir.irLocal->value))
|
|
{
|
|
addr = DtoAlloca(var->type, var->toChars());
|
|
|
|
#ifndef DISABLE_DEBUG_INFO
|
|
// add debug info
|
|
if (global.params.symdebug)
|
|
DtoDwarfLocalVariable(addr, var);
|
|
#endif
|
|
}
|
|
|
|
// referenced by nested function?
|
|
#if DMDV2
|
|
if (var->nestedrefs.dim)
|
|
#else
|
|
if (var->nestedref)
|
|
#endif
|
|
{
|
|
assert(var->ir.irLocal);
|
|
if(!var->ir.irLocal->value)
|
|
{
|
|
assert(addr);
|
|
var->ir.irLocal->value = addr;
|
|
}
|
|
else
|
|
assert(!addr || addr == var->ir.irLocal->value);
|
|
|
|
DtoNestedInit(var);
|
|
}
|
|
// normal local variable
|
|
else
|
|
{
|
|
// if this already has storage, it must've been handled already
|
|
if (var->ir.irLocal && var->ir.irLocal->value) {
|
|
if (addr && addr != var->ir.irLocal->value) {
|
|
// This can happen, for example, in scope(exit) blocks which
|
|
// are translated to IR multiple times.
|
|
// That *should* only happen after the first one is completely done
|
|
// though, so just set the address.
|
|
IF_LOG {
|
|
Logger::println("Replacing LLVM address of %s", var->toChars());
|
|
LOG_SCOPE;
|
|
Logger::cout() << "Old val: " << *var->ir.irLocal->value << '\n';
|
|
Logger::cout() << "New val: " << *addr << '\n';
|
|
}
|
|
var->ir.irLocal->value = addr;
|
|
}
|
|
return addr;
|
|
}
|
|
|
|
assert(!var->ir.isSet());
|
|
assert(addr);
|
|
var->ir.irLocal = new IrLocal(var);
|
|
var->ir.irLocal->value = addr;
|
|
}
|
|
|
|
// return the alloca
|
|
return var->ir.irLocal->value;
|
|
}
|
|
|
|
/****************************************************************************************/
|
|
/*////////////////////////////////////////////////////////////////////////////////////////
|
|
// INITIALIZER HELPERS
|
|
////////////////////////////////////////////////////////////////////////////////////////*/
|
|
|
|
LLType* DtoConstInitializerType(Type* type, Initializer* init)
|
|
{
|
|
if (type->ty == Ttypedef) {
|
|
TypeTypedef *td = (TypeTypedef*)type;
|
|
if (td->sym->init)
|
|
return DtoConstInitializerType(td->sym->basetype, td->sym->init);
|
|
}
|
|
|
|
type = type->toBasetype();
|
|
if (type->ty == Tsarray)
|
|
{
|
|
if (!init)
|
|
{
|
|
TypeSArray *tsa = (TypeSArray*)type;
|
|
LLType *llnext = DtoConstInitializerType(type->nextOf(), init);
|
|
return LLArrayType::get(llnext, tsa->dim->toUInteger());
|
|
}
|
|
else if (ArrayInitializer* ai = init->isArrayInitializer())
|
|
{
|
|
return DtoConstArrayInitializerType(ai);
|
|
}
|
|
}
|
|
else if (type->ty == Tstruct)
|
|
{
|
|
if (!init)
|
|
{
|
|
LdefaultInit:
|
|
TypeStruct *ts = (TypeStruct*)type;
|
|
DtoResolveStruct(ts->sym);
|
|
return ts->sym->ir.irStruct->getDefaultInit()->getType();
|
|
}
|
|
else if (ExpInitializer* ex = init->isExpInitializer())
|
|
{
|
|
if (ex->exp->op == TOKstructliteral) {
|
|
StructLiteralExp* le = (StructLiteralExp*)ex->exp;
|
|
if (!le->constType)
|
|
le->constType = LLStructType::create(gIR->context(), std::string(type->toChars()) + "_init");
|
|
return le->constType;
|
|
} else if (ex->exp->op == TOKvar) {
|
|
if (((VarExp*)ex->exp)->var->isStaticStructInitDeclaration())
|
|
goto LdefaultInit;
|
|
}
|
|
}
|
|
else if (StructInitializer* si = init->isStructInitializer())
|
|
{
|
|
if (!si->ltype)
|
|
si->ltype = LLStructType::create(gIR->context(), std::string(type->toChars()) + "_init");
|
|
return si->ltype;
|
|
}
|
|
}
|
|
|
|
return DtoTypeNotVoid(type);
|
|
}
|
|
|
|
LLConstant* DtoConstInitializer(Loc loc, Type* type, Initializer* init)
|
|
{
|
|
LLConstant* _init = 0; // may return zero
|
|
if (!init)
|
|
{
|
|
Logger::println("const default initializer for %s", type->toChars());
|
|
_init = DtoConstExpInit(loc, type, type->defaultInit());
|
|
}
|
|
else if (ExpInitializer* ex = init->isExpInitializer())
|
|
{
|
|
Logger::println("const expression initializer");
|
|
_init = DtoConstExpInit(loc, type, ex->exp);
|
|
}
|
|
else if (StructInitializer* si = init->isStructInitializer())
|
|
{
|
|
Logger::println("const struct initializer");
|
|
si->ad->codegen(Type::sir);
|
|
return si->ad->ir.irStruct->createStructInitializer(si);
|
|
}
|
|
else if (ArrayInitializer* ai = init->isArrayInitializer())
|
|
{
|
|
Logger::println("const array initializer");
|
|
_init = DtoConstArrayInitializer(ai);
|
|
}
|
|
else if (init->isVoidInitializer())
|
|
{
|
|
Logger::println("const void initializer");
|
|
LLType* ty = DtoTypeNotVoid(type);
|
|
_init = LLConstant::getNullValue(ty);
|
|
}
|
|
else {
|
|
Logger::println("unsupported const initializer: %s", init->toChars());
|
|
}
|
|
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);
|
|
return ex->exp->toElem(gIR);
|
|
}
|
|
else if (ArrayInitializer* ai = init->isArrayInitializer())
|
|
{
|
|
// TODO: do nothing ?
|
|
}
|
|
else if (init->isVoidInitializer())
|
|
{
|
|
// do nothing
|
|
}
|
|
else if (StructInitializer *si = init->isStructInitializer()) {
|
|
// TODO: again 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());
|
|
LLType* dstTy = DtoType(base);
|
|
if (Logger::enabled())
|
|
Logger::cout() << "final llvm type requested: " << *dstTy << '\n';
|
|
|
|
LLConstant* val = exp->toConstElem(gIR);
|
|
|
|
Type* expbase = stripModifiers(exp->type->toBasetype());
|
|
Logger::println("expbase: %s", expbase->toChars());
|
|
Type* t = base->toBasetype();
|
|
|
|
LLSmallVector<size_t, 4> dims;
|
|
|
|
while(1)
|
|
{
|
|
Logger::println("t: %s", t->toChars());
|
|
if (t->equals(expbase))
|
|
break;
|
|
assert(t->ty == Tsarray);
|
|
TypeSArray* tsa = (TypeSArray*)t;
|
|
dims.push_back(tsa->dim->toInteger());
|
|
assert(t->nextOf());
|
|
t = t->nextOf()->toBasetype();
|
|
}
|
|
|
|
size_t i = dims.size();
|
|
assert(i);
|
|
|
|
std::vector<LLConstant*> inits;
|
|
while (i--)
|
|
{
|
|
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* DtoConstExpInit(Loc loc, Type* type, Expression* exp)
|
|
{
|
|
#if DMDV2
|
|
Type* expbase = exp->type->toBasetype()->mutableOf()->merge();
|
|
Type* base = type->toBasetype()->mutableOf()->merge();
|
|
#else
|
|
Type* expbase = exp->type->toBasetype();
|
|
Type* base = type->toBasetype();
|
|
#endif
|
|
|
|
// if not the same basetypes, we won't get the same llvm types either
|
|
if (!expbase->equals(base))
|
|
{
|
|
if (base->ty == Tsarray)
|
|
{
|
|
if (base->nextOf()->toBasetype()->ty == Tvoid) {
|
|
error(loc, "static arrays of voids have no default initializer");
|
|
fatal();
|
|
}
|
|
Logger::println("type is a static array, building constant array initializer to single value");
|
|
return expand_to_sarray(base, exp);
|
|
}
|
|
else
|
|
{
|
|
error("cannot yet convert default initializer %s of 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!
|
|
// FIXME: this is const folded and eliminated immediately ... :/
|
|
gIR->ir->CreateAnd(DtoConstSize_t(0),DtoConstSize_t(0),s.c_str());
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
LLConstant* DtoTypeInfoOf(Type* type, bool base)
|
|
{
|
|
type = type->merge2(); // needed.. getTypeInfo does the same
|
|
type->getTypeInfo(NULL);
|
|
TypeInfoDeclaration* tidecl = type->vtinfo;
|
|
assert(tidecl);
|
|
tidecl->codegen(Type::sir);
|
|
assert(tidecl->ir.irGlobal != NULL);
|
|
assert(tidecl->ir.irGlobal->value != NULL);
|
|
LLConstant* c = isaConstant(tidecl->ir.irGlobal->value);
|
|
assert(c != NULL);
|
|
if (base)
|
|
return llvm::ConstantExpr::getBitCast(c, DtoType(Type::typeinfo->type));
|
|
return c;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
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 prefix = T->isreal() ? 'f' : T->isintegral() ? 'i' : 0;
|
|
if (!prefix) {
|
|
ti->error("has invalid template parameter for intrinsic: %s", T->toChars());
|
|
fatal(); // or LLVM asserts
|
|
}
|
|
|
|
char tmp[21]; // probably excessive, but covers a uint64_t
|
|
sprintf(tmp, "%lu", (unsigned long) gTargetData->getTypeSizeInBits(DtoType(T)));
|
|
|
|
// replace # in name with bitsize
|
|
name = td->intrinsicName;
|
|
|
|
std::string needle("#");
|
|
size_t pos;
|
|
while(std::string::npos != (pos = name.find(needle))) {
|
|
if (pos > 0 && name[pos-1] == prefix) {
|
|
// Properly prefixed, insert bitwidth.
|
|
name.replace(pos, 1, tmp);
|
|
} else {
|
|
if (pos && (name[pos-1] == 'i' || name[pos-1] == 'f')) {
|
|
// Wrong type character.
|
|
ti->error("has invalid parameter type for intrinsic %s: %s is not a%s type",
|
|
name.c_str(), T->toChars(),
|
|
(name[pos-1] == 'i' ? "n integral" : " floating-point"));
|
|
} else {
|
|
// Just plain wrong. (Error in declaration, not instantiation)
|
|
td->error("has an invalid intrinsic name: %s", name.c_str());
|
|
}
|
|
fatal(); // or LLVM asserts
|
|
}
|
|
}
|
|
|
|
Logger::println("final intrinsic name: %s", name.c_str());
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool mustDefineSymbol(Dsymbol* s)
|
|
{
|
|
if (FuncDeclaration* fd = s->isFuncDeclaration())
|
|
{
|
|
// we can't (and probably shouldn't?) define functions
|
|
// that weren't semantic3'ed
|
|
if (fd->semanticRun < 4)
|
|
return false;
|
|
|
|
if (fd->isArrayOp)
|
|
return true;
|
|
|
|
if (global.params.useAvailableExternally && fd->availableExternally) {
|
|
// Emit extra functions if we're inlining.
|
|
// These will get available_externally linkage,
|
|
// so they shouldn't end up in object code.
|
|
|
|
assert(fd->type->ty == Tfunction);
|
|
// * If we define extra static constructors, static destructors
|
|
// and unittests they'll get registered to run, and we won't
|
|
// be calling them directly anyway.
|
|
// * If it's a large function, don't emit it unnecessarily.
|
|
// Use DMD's canInline() to determine whether it's large.
|
|
// inlineCost() members have been changed to pay less attention
|
|
// to DMDs limitations, but still have some issues. The most glaring
|
|
// offenders are any kind of control flow statements other than
|
|
// 'if' and 'return'.
|
|
if ( !fd->isStaticCtorDeclaration()
|
|
&& !fd->isStaticDtorDeclaration()
|
|
&& !fd->isUnitTestDeclaration()
|
|
&& fd->canInline(true))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// This was only semantic'ed for inlining checks.
|
|
// We won't be inlining this, so we only need to emit a declaration.
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Inlining checks may create some variable and class declarations
|
|
// we don't need to emit.
|
|
if (global.params.useAvailableExternally)
|
|
{
|
|
if (VarDeclaration* vd = s->isVarDeclaration())
|
|
if (vd->availableExternally)
|
|
return false;
|
|
|
|
if (ClassDeclaration* cd = s->isClassDeclaration())
|
|
if (cd->availableExternally)
|
|
return false;
|
|
}
|
|
|
|
TemplateInstance* tinst = DtoIsTemplateInstance(s);
|
|
if (tinst)
|
|
{
|
|
if (!opts::singleObj)
|
|
return true;
|
|
|
|
if (!tinst->emittedInModule)
|
|
{
|
|
gIR->seenTemplateInstances.insert(tinst);
|
|
tinst->emittedInModule = gIR->dmodule;
|
|
}
|
|
return tinst->emittedInModule == gIR->dmodule;
|
|
}
|
|
|
|
return s->getModule() == gIR->dmodule;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool needsTemplateLinkage(Dsymbol* s)
|
|
{
|
|
return DtoIsTemplateInstance(s) && mustDefineSymbol(s);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool hasUnalignedFields(Type* t)
|
|
{
|
|
t = t->toBasetype();
|
|
if (t->ty == Tsarray) {
|
|
assert(t->nextOf()->size() % t->nextOf()->alignsize() == 0);
|
|
return hasUnalignedFields(t->nextOf());
|
|
} else if (t->ty != Tstruct)
|
|
return false;
|
|
|
|
TypeStruct* ts = (TypeStruct*)t;
|
|
if (ts->unaligned)
|
|
return (ts->unaligned == 2);
|
|
|
|
StructDeclaration* sym = ts->sym;
|
|
|
|
// go through all the fields and try to find something unaligned
|
|
ts->unaligned = 2;
|
|
for (unsigned i = 0; i < sym->fields.dim; i++)
|
|
{
|
|
VarDeclaration* f = (VarDeclaration*)sym->fields.data[i];
|
|
unsigned a = f->type->alignsize() - 1;
|
|
if (((f->offset + a) & ~a) != f->offset)
|
|
return true;
|
|
else if (f->type->toBasetype()->ty == Tstruct && hasUnalignedFields(f->type))
|
|
return true;
|
|
}
|
|
|
|
ts->unaligned = 1;
|
|
return false;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
IrModule * getIrModule(Module * M)
|
|
{
|
|
if (M == NULL)
|
|
M = gIR->func()->decl->getModule();
|
|
assert(M && "null module");
|
|
if (!M->ir.irModule)
|
|
M->ir.irModule = new IrModule(M, M->srcfile->toChars());
|
|
return M->ir.irModule;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
size_t realignOffset(size_t offset, Type* type)
|
|
{
|
|
size_t alignsize = type->alignsize();
|
|
size_t alignedoffset = (offset + alignsize - 1) & ~(alignsize - 1);
|
|
|
|
// if the aligned offset already matches the input offset
|
|
// don't waste time checking things are ok!
|
|
if (alignedoffset == offset)
|
|
return alignedoffset;
|
|
|
|
// we cannot get the llvm alignment if the type is still opaque, this can happen in some
|
|
// forward reference situations, so when this happens we fall back to manual padding.
|
|
// also handle arbitrary "by-value" opaques nested inside aggregates.
|
|
LLType* T = DtoType(type);
|
|
if (!T->isSized())
|
|
{
|
|
return offset;
|
|
}
|
|
|
|
// then we check against the llvm alignment
|
|
size_t alignsize2 = gTargetData->getABITypeAlignment(T);
|
|
|
|
// if it differs we need to insert manual padding as well
|
|
if (alignsize != alignsize2)
|
|
{
|
|
// FIXME: this assert fails on std.typecons
|
|
//assert(alignsize > alignsize2 && "this is not good, the D and LLVM "
|
|
// "type alignments differ, but LLVM's is bigger! This will break "
|
|
// "aggregate type mapping");
|
|
// don't try and align the offset, and let the mappers pad 100% manually
|
|
return offset;
|
|
}
|
|
|
|
// ok, we're good, llvm will align properly!
|
|
return alignedoffset;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Type * stripModifiers( Type * type )
|
|
{
|
|
#if DMDV2
|
|
if (type->ty == Tfunction)
|
|
return type;
|
|
Type *t = type;
|
|
while (t->mod)
|
|
{
|
|
switch (t->mod)
|
|
{
|
|
case MODconst:
|
|
t = type->cto;
|
|
break;
|
|
case MODshared:
|
|
t = type->sto;
|
|
break;
|
|
case MODimmutable:
|
|
t = type->ito;
|
|
break;
|
|
case MODshared | MODconst:
|
|
t = type->scto;
|
|
break;
|
|
case MODwild:
|
|
t = type->wto;
|
|
break;
|
|
case MODshared | MODwild:
|
|
t = type->swto;
|
|
break;
|
|
default:
|
|
assert(0 && "Unhandled type modifier");
|
|
}
|
|
|
|
if (!t)
|
|
{
|
|
unsigned sz = type->sizeTy[type->ty];
|
|
t = (Type *)malloc(sz);
|
|
memcpy(t, type, sz);
|
|
t->mod = 0;
|
|
t->deco = NULL;
|
|
t->arrayof = NULL;
|
|
t->pto = NULL;
|
|
t->rto = NULL;
|
|
t->cto = NULL;
|
|
t->ito = NULL;
|
|
t->sto = NULL;
|
|
t->scto = NULL;
|
|
t->wto = NULL;
|
|
t->swto = NULL;
|
|
t->vtinfo = NULL;
|
|
t = t->merge();
|
|
|
|
t->fixTo(type);
|
|
switch (type->mod)
|
|
{
|
|
case MODconst:
|
|
t->cto = type;
|
|
break;
|
|
|
|
case MODimmutable:
|
|
t->ito = type;
|
|
break;
|
|
|
|
case MODshared:
|
|
t->sto = type;
|
|
break;
|
|
|
|
case MODshared | MODconst:
|
|
t->scto = type;
|
|
break;
|
|
|
|
case MODwild:
|
|
t->wto = type;
|
|
break;
|
|
|
|
case MODshared | MODwild:
|
|
t->swto = type;
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
}
|
|
return t;
|
|
#else
|
|
return type;
|
|
#endif
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
LLValue* makeLValue(Loc& loc, DValue* value)
|
|
{
|
|
Type* valueType = value->getType();
|
|
bool needsMemory;
|
|
LLValue* valuePointer;
|
|
if (value->isIm()) {
|
|
valuePointer = value->getRVal();
|
|
needsMemory = !DtoIsPassedByRef(valueType);
|
|
}
|
|
else if (value->isVar()) {
|
|
valuePointer = value->getLVal();
|
|
needsMemory = false;
|
|
}
|
|
else if (value->isConst()) {
|
|
valuePointer = value->getRVal();
|
|
needsMemory = true;
|
|
}
|
|
else {
|
|
valuePointer = DtoAlloca(valueType, ".makelvaluetmp");
|
|
DVarValue var(valueType, valuePointer);
|
|
DtoAssign(loc, &var, value);
|
|
needsMemory = false;
|
|
}
|
|
|
|
if (needsMemory) {
|
|
LLValue* tmp = DtoAlloca(valueType, ".makelvaluetmp");
|
|
DtoStore(valuePointer, tmp);
|
|
valuePointer = tmp;
|
|
}
|
|
|
|
return valuePointer;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#if DMDV2
|
|
void callPostblit(Loc &loc, Expression *exp, LLValue *val)
|
|
{
|
|
|
|
Type *tb = exp->type->toBasetype();
|
|
if ((exp->op == TOKvar || exp->op == TOKdotvar || exp->op == TOKstar || exp->op == TOKthis) &&
|
|
tb->ty == Tstruct)
|
|
{ StructDeclaration *sd = ((TypeStruct *)tb)->sym;
|
|
if (sd->postblit)
|
|
{
|
|
FuncDeclaration *fd = sd->postblit;
|
|
if (fd->storage_class & STCdisable)
|
|
fd->toParent()->error(loc, "is not copyable because it is annotated with @disable");
|
|
fd->codegen(Type::sir);
|
|
Expressions args;
|
|
DFuncValue dfn(fd, fd->ir.irFunc->func, val);
|
|
DtoCallFunction(loc, Type::basic[Tvoid], &dfn, &args);
|
|
}
|
|
}
|
|
}
|
|
#endif
|