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//===-- aa.cpp ------------------------------------------------------------===//
//
// LDC – the LLVM D compiler
//
// This file is distributed under the BSD-style LDC license. See the LICENSE
// file for details.
//
//===----------------------------------------------------------------------===//
#include "gen/aa.h"
#include "dmd/aggregate.h"
#include "dmd/declaration.h"
#include "dmd/module.h"
#include "dmd/mtype.h"
#include "gen/arrays.h"
#include "gen/dvalue.h"
#include "gen/irstate.h"
#include "gen/llvm.h"
#include "gen/llvmhelpers.h"
#include "gen/logger.h"
#include "gen/runtime.h"
#include "gen/tollvm.h"
#include "ir/irfunction.h"
#include "ir/irmodule.h"
// returns the keytype typeinfo
static LLConstant *to_keyti(const Loc &loc, DValue *aa, LLType *targetType) {
// keyti param
assert(aa->type->toBasetype()->ty == TY::Taarray);
TypeAArray *aatype = static_cast<TypeAArray *>(aa->type->toBasetype());
LLConstant *ti = DtoTypeInfoOf(loc, aatype->index, /*base=*/false);
return DtoBitCast(ti, targetType);
}
////////////////////////////////////////////////////////////////////////////////
DLValue *DtoAAIndex(const Loc &loc, Type *type, DValue *aa, DValue *key,
bool lvalue) {
// D2:
// call:
// extern(C) void* _aaGetY(AA* aa, TypeInfo aati, size_t valuesize, void*
// pkey)
// or
// extern(C) void* _aaInX(AA aa*, TypeInfo keyti, void* pkey)
// first get the runtime function
llvm::Function *func =
getRuntimeFunction(loc, gIR->module, lvalue ? "_aaGetY" : "_aaInX");
LLFunctionType *funcTy = func->getFunctionType();
// aa param
LLValue *aaval = lvalue ? DtoLVal(aa) : DtoRVal(aa);
aaval = DtoBitCast(aaval, funcTy->getParamType(0));
// pkey param
LLValue *pkey = makeLValue(loc, key);
pkey = DtoBitCast(pkey, funcTy->getParamType(lvalue ? 3 : 2));
// call runtime
LLValue *ret;
if (lvalue) {
LLValue *rawAATI =
DtoTypeInfoOf(loc, aa->type->unSharedOf()->mutableOf(), /*base=*/false);
LLValue *castedAATI = DtoBitCast(rawAATI, funcTy->getParamType(1));
LLValue *valsize = DtoConstSize_t(getTypeAllocSize(DtoType(type)));
ret = gIR->CreateCallOrInvoke(func, aaval, castedAATI, valsize, pkey,
"aa.index");
} else {
LLValue *keyti = to_keyti(loc, aa, funcTy->getParamType(1));
ret = gIR->CreateCallOrInvoke(func, aaval, keyti, pkey, "aa.index");
}
// cast return value
LLType *targettype = DtoPtrToType(type);
if (ret->getType() != targettype) {
ret = DtoBitCast(ret, targettype);
}
// Only check bounds for rvalues ('aa[key]').
// Lvalue use ('aa[key] = value') auto-adds an element.
if (!lvalue && gIR->emitArrayBoundsChecks()) {
llvm::BasicBlock *okbb = gIR->insertBB("aaboundsok");
llvm::BasicBlock *failbb = gIR->insertBBAfter(okbb, "aaboundscheckfail");
LLValue *nullaa = LLConstant::getNullValue(ret->getType());
LLValue *cond = gIR->ir->CreateICmpNE(nullaa, ret, "aaboundscheck");
gIR->ir->CreateCondBr(cond, okbb, failbb);
// set up failbb to call the array bounds error runtime function
gIR->ir->SetInsertPoint(failbb);
emitRangeError(gIR, loc);
// if ok, proceed in okbb
gIR->ir->SetInsertPoint(okbb);
}
return new DLValue(type, ret);
}
////////////////////////////////////////////////////////////////////////////////
DValue *DtoAAIn(const Loc &loc, Type *type, DValue *aa, DValue *key) {
// D1:
// call:
// extern(C) void* _aaIn(AA aa*, TypeInfo keyti, void* pkey)
// D2:
// call:
// extern(C) void* _aaInX(AA aa*, TypeInfo keyti, void* pkey)
// first get the runtime function
llvm::Function *func = getRuntimeFunction(loc, gIR->module, "_aaInX");
LLFunctionType *funcTy = func->getFunctionType();
IF_LOG Logger::cout() << "_aaIn = " << *func << '\n';
// aa param
LLValue *aaval = DtoRVal(aa);
IF_LOG {
Logger::cout() << "aaval: " << *aaval << '\n';
Logger::cout() << "totype: " << *funcTy->getParamType(0) << '\n';
}
aaval = DtoBitCast(aaval, funcTy->getParamType(0));
// keyti param
LLValue *keyti = to_keyti(loc, aa, funcTy->getParamType(1));
// pkey param
LLValue *pkey = makeLValue(loc, key);
pkey = DtoBitCast(pkey, getVoidPtrType());
// call runtime
LLValue *ret = gIR->CreateCallOrInvoke(func, aaval, keyti, pkey, "aa.in");
// cast return value
LLType *targettype = DtoType(type);
if (ret->getType() != targettype) {
ret = DtoBitCast(ret, targettype);
}
return new DImValue(type, ret);
}
////////////////////////////////////////////////////////////////////////////////
DValue *DtoAARemove(const Loc &loc, DValue *aa, DValue *key) {
// D1:
// call:
// extern(C) void _aaDel(AA aa, TypeInfo keyti, void* pkey)
// D2:
// call:
// extern(C) bool _aaDelX(AA aa, TypeInfo keyti, void* pkey)
// first get the runtime function
llvm::Function *func = getRuntimeFunction(loc, gIR->module, "_aaDelX");
LLFunctionType *funcTy = func->getFunctionType();
IF_LOG Logger::cout() << "_aaDel = " << *func << '\n';
// aa param
LLValue *aaval = DtoRVal(aa);
IF_LOG {
Logger::cout() << "aaval: " << *aaval << '\n';
Logger::cout() << "totype: " << *funcTy->getParamType(0) << '\n';
}
aaval = DtoBitCast(aaval, funcTy->getParamType(0));
// keyti param
LLValue *keyti = to_keyti(loc, aa, funcTy->getParamType(1));
// pkey param
LLValue *pkey = makeLValue(loc, key);
pkey = DtoBitCast(pkey, funcTy->getParamType(2));
// call runtime
LLValue *res = gIR->CreateCallOrInvoke(func, aaval, keyti, pkey);
return new DImValue(Type::tbool, res);
}
////////////////////////////////////////////////////////////////////////////////
LLValue *DtoAAEquals(const Loc &loc, EXP op, DValue *l, DValue *r) {
Type *t = l->type->toBasetype();
assert(t == r->type->toBasetype() &&
"aa equality is only defined for aas of same type");
llvm::Function *func = getRuntimeFunction(loc, gIR->module, "_aaEqual");
LLFunctionType *funcTy = func->getFunctionType();
LLValue *aaval = DtoBitCast(DtoRVal(l), funcTy->getParamType(1));
LLValue *abval = DtoBitCast(DtoRVal(r), funcTy->getParamType(2));
LLValue *aaTypeInfo = DtoTypeInfoOf(loc, t);
LLValue *res =
gIR->CreateCallOrInvoke(func, aaTypeInfo, aaval, abval, "aaEqRes");
const auto predicate = eqTokToICmpPred(op, /* invert = */ true);
res = gIR->ir->CreateICmp(predicate, res, DtoConstInt(0));
return res;
}
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