void TryCatchFinallyScopes::runCleanups(CleanupCursor sourceScope,
CleanupCursor targetScope,
llvm::BasicBlock *continueWith) {
#if LDC_LLVM_VER >= 308
if (useMSVCEH()) {
runCleanupCopies(sourceScope, targetScope, continueWith);
return;
}
#endif
assert(targetScope <= sourceScope);
if (targetScope == sourceScope) {
// No cleanups to run, just branch to the next block.
irs.ir->CreateBr(continueWith);
return;
}
// Insert the unconditional branch to the first cleanup block.
irs.ir->CreateBr(cleanupScopes[sourceScope - 1].beginBlock());
// Update all the control flow in the cleanups to make sure we end up where
// we want.
for (CleanupCursor i = sourceScope; i-- > targetScope;) {
llvm::BasicBlock *nextBlock =
(i > targetScope) ? cleanupScopes[i - 1].beginBlock() : continueWith;
cleanupScopes[i].run(irs, irs.scopebb(), nextBlock);
}
}
void TryCatchFinallyScopes::popTryCatch() {
tryCatchScopes.pop_back();
if (useMSVCEH()) {
#if LDC_LLVM_VER >= 308
assert(isCatchSwitchBlock(cleanupScopes.back().beginBlock()));
#endif
popCleanups(currentCleanupScope() - 1);
} else {
landingPadsPerCleanupScope[currentCleanupScope()].pop_back();
}
}
void TryCatchFinallyScopes::pushTryCatch(TryCatchStatement *stmt,
llvm::BasicBlock *endbb) {
TryCatchScope scope(irs, getOrCreateEhPtrSlot(), stmt, endbb);
// Only after emitting all the catch bodies, register the catch scopes.
// This is so that (re)throwing inside a catch does not match later
// catches.
tryCatchScopes.push_back(scope);
if (!useMSVCEH())
landingPadsPerCleanupScope[currentCleanupScope()].push_back(nullptr);
}
CleanupScope::CleanupScope(llvm::BasicBlock *beginBlock,
llvm::BasicBlock *endBlock) {
#if LDC_LLVM_VER >= 308
if (useMSVCEH()) {
findSuccessors(blocks, beginBlock, endBlock);
return;
}
#endif
blocks.push_back(beginBlock);
if (endBlock != beginBlock)
blocks.push_back(endBlock);
}
TryCatchScope::TryCatchScope(IRState &irs, llvm::Value *ehPtrSlot,
TryCatchStatement *stmt, llvm::BasicBlock *endbb)
: stmt(stmt), endbb(endbb) {
assert(stmt->catches);
cleanupScope = irs.funcGen().scopes.currentCleanupScope();
catchesNonExceptions =
std::any_of(stmt->catches->begin(), stmt->catches->end(), [](Catch *c) {
for (auto cd = c->type->toBasetype()->isClassHandle(); cd;
cd = isClassDeclarationOrNull(cd->baseClass)) { // CALYPSO
if (cd == ClassDeclaration::exception)
return false;
}
return true;
});
#if LDC_LLVM_VER >= 308
if (useMSVCEH()) {
emitCatchBodiesMSVC(irs, ehPtrSlot);
return;
}
#endif
emitCatchBodies(irs, ehPtrSlot);
}
llvm::BasicBlock *TryCatchFinallyScopes::emitLandingPad() {
#if LDC_LLVM_VER >= 308
if (useMSVCEH()) {
assert(currentCleanupScope() > 0);
return emitLandingPadMSVC(currentCleanupScope() - 1);
}
#endif
// save and rewrite scope
IRScope savedIRScope = irs.scope();
// insert landing pads at the end of the function, in emission order,
// to improve human-readability of the IR
llvm::BasicBlock *beginBB = irs.insertBBBefore(nullptr, "landingPad");
irs.scope() = IRScope(beginBB);
llvm::LandingPadInst *landingPad = createLandingPadInst(irs);
// Stash away the exception object pointer and selector value into their
// stack slots.
llvm::Value *ehPtr = DtoExtractValue(landingPad, 0);
irs.ir->CreateStore(ehPtr, getOrCreateEhPtrSlot());
llvm::Value *ehSelector = DtoExtractValue(landingPad, 1);
if (!ehSelectorSlot)
ehSelectorSlot = DtoRawAlloca(ehSelector->getType(), 0, "eh.selector");
irs.ir->CreateStore(ehSelector, ehSelectorSlot);
// Add landingpad clauses, emit finallys and 'if' chain to catch the
// exception.
CleanupCursor lastCleanup = currentCleanupScope();
for (auto it = tryCatchScopes.rbegin(), end = tryCatchScopes.rend();
it != end; ++it) {
const auto &tryCatchScope = *it;
// Insert any cleanups in between the previous (inner-more) try-catch scope
// and this one.
const auto newCleanup = tryCatchScope.getCleanupScope();
assert(lastCleanup >= newCleanup);
if (lastCleanup > newCleanup) {
landingPad->setCleanup(true);
llvm::BasicBlock *afterCleanupBB =
irs.insertBB(beginBB->getName() + llvm::Twine(".after.cleanup"));
runCleanups(lastCleanup, newCleanup, afterCleanupBB);
irs.scope() = IRScope(afterCleanupBB);
lastCleanup = newCleanup;
}
for (const auto &cb : tryCatchScope.getCatchBlocks()) {
// Add the ClassInfo reference to the landingpad instruction so it is
// emitted to the EH tables.
landingPad->addClause(cb.classInfoPtr);
llvm::BasicBlock *mismatchBB =
irs.insertBB(beginBB->getName() + llvm::Twine(".mismatch"));
// "Call" llvm.eh.typeid.for, which gives us the eh selector value to
// compare the landing pad selector value with.
llvm::Value *ehTypeId =
irs.ir->CreateCall(GET_INTRINSIC_DECL(eh_typeid_for),
DtoBitCast(cb.classInfoPtr, getVoidPtrType()));
// Compare the selector value from the unwinder against the expected
// one and branch accordingly.
irs.ir->CreateCondBr(
irs.ir->CreateICmpEQ(irs.ir->CreateLoad(ehSelectorSlot), ehTypeId),
cb.bodyBB, mismatchBB, cb.branchWeights);
irs.scope() = IRScope(mismatchBB);
}
}
// No catch matched. Execute all finallys and resume unwinding.
auto resumeUnwindBlock = getOrCreateResumeUnwindBlock();
if (lastCleanup > 0) {
landingPad->setCleanup(true);
runCleanups(lastCleanup, 0, resumeUnwindBlock);
} else if (!tryCatchScopes.empty()) {
// Directly convert the last mismatch branch into a branch to the
// unwind resume block.
irs.scopebb()->replaceAllUsesWith(resumeUnwindBlock);
irs.scopebb()->eraseFromParent();
} else {
irs.ir->CreateBr(resumeUnwindBlock);
}
irs.scope() = savedIRScope;
return beginBB;
}
llvm::BasicBlock *CleanupScope::run(IRState &irs, llvm::BasicBlock *sourceBlock,
llvm::BasicBlock *continueWith) {
#if LDC_LLVM_VER >= 308
if (useMSVCEH())
return runCopying(irs, sourceBlock, continueWith);
#endif
if (exitTargets.empty() || (exitTargets.size() == 1 &&
exitTargets[0].branchTarget == continueWith)) {
// We didn't need a branch selector before and still don't need one.
assert(!branchSelector);
// Set up the unconditional branch at the end of the cleanup if we have
// not done so already.
if (exitTargets.empty()) {
exitTargets.emplace_back(continueWith);
llvm::BranchInst::Create(continueWith, endBlock());
}
exitTargets.front().sourceBlocks.push_back(sourceBlock);
return beginBlock();
}
// We need a branch selector if we are here...
if (!branchSelector) {
// ... and have not created one yet, so do so now.
branchSelector = new llvm::AllocaInst(llvm::Type::getInt32Ty(irs.context()),
#if LDC_LLVM_VER >= 500
irs.module.getDataLayout().getAllocaAddrSpace(),
#endif
llvm::Twine("branchsel.") +
beginBlock()->getName(),
irs.topallocapoint());
// Now we also need to store 0 to it to keep the paths that go to the
// only existing branch target the same.
for (auto bb : exitTargets.front().sourceBlocks) {
new llvm::StoreInst(DtoConstUint(0), branchSelector, bb->getTerminator());
}
// And convert the BranchInst to the existing branch target to a
// SelectInst so we can append the other cases to it.
endBlock()->getTerminator()->eraseFromParent();
llvm::Value *sel = new llvm::LoadInst(branchSelector, "", endBlock());
llvm::SwitchInst::Create(
sel, exitTargets[0].branchTarget,
1, // Expected number of branches, only for pre-allocating.
endBlock());
}
// If we already know this branch target, figure out the branch selector
// value and simply insert the store into the source block (prior to the
// last instruction, which is the branch to the first cleanup).
for (unsigned i = 0; i < exitTargets.size(); ++i) {
CleanupExitTarget &t = exitTargets[i];
if (t.branchTarget == continueWith) {
new llvm::StoreInst(DtoConstUint(i), branchSelector,
sourceBlock->getTerminator());
// Note: Strictly speaking, keeping this up to date would not be
// needed right now, because we never to any optimizations that
// require changes to the source blocks after the initial conversion
// from one to two branch targets. Keeping this around for now to
// ease future development, but may be removed to save some work.
t.sourceBlocks.push_back(sourceBlock);
return beginBlock();
}
}
// We don't know this branch target yet, so add it to the SwitchInst...
llvm::ConstantInt *const selectorVal = DtoConstUint(exitTargets.size());
llvm::cast<llvm::SwitchInst>(endBlock()->getTerminator())
->addCase(selectorVal, continueWith);
// ... insert the store into the source block...
new llvm::StoreInst(selectorVal, branchSelector,
sourceBlock->getTerminator());
// ... and keep track of it (again, this is unnecessary right now as
// discussed in the above note).
exitTargets.emplace_back(continueWith);
exitTargets.back().sourceBlocks.push_back(sourceBlock);
return beginBlock();
}
static void buildRuntimeModule() {
Logger::println("building runtime module");
M = new llvm::Module("ldc internal runtime", gIR->context());
Type *voidTy = Type::tvoid;
Type *boolTy = Type::tbool;
Type *ubyteTy = Type::tuns8;
Type *intTy = Type::tint32;
Type *uintTy = Type::tuns32;
Type *ulongTy = Type::tuns64;
Type *sizeTy = Type::tsize_t;
Type *dcharTy = Type::tdchar;
Type *voidPtrTy = Type::tvoidptr;
Type *voidArrayTy = Type::tvoid->arrayOf();
Type *voidArrayPtrTy = voidArrayTy->pointerTo();
Type *stringTy = Type::tchar->arrayOf();
Type *wstringTy = Type::twchar->arrayOf();
Type *dstringTy = Type::tdchar->arrayOf();
// Ensure that the declarations exist before creating llvm types for them.
ensureDecl(ClassDeclaration::object, "Object");
ensureDecl(Type::typeinfoclass, "TypeInfo_Class");
ensureDecl(Type::dtypeinfo, "DTypeInfo");
ensureDecl(Type::typeinfoassociativearray, "TypeInfo_AssociativeArray");
ensureDecl(Module::moduleinfo, "ModuleInfo");
Type *objectTy = ClassDeclaration::object->type;
Type *classInfoTy = Type::typeinfoclass->type;
Type *typeInfoTy = Type::dtypeinfo->type;
Type *aaTypeInfoTy = Type::typeinfoassociativearray->type;
Type *moduleInfoPtrTy = Module::moduleinfo->type->pointerTo();
// The AA type is a struct that only contains a ptr
Type *aaTy = voidPtrTy;
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// Construct some attribute lists used below (possibly multiple times)
AttrSet NoAttrs, Attr_NoAlias(NoAttrs, llvm::AttributeSet::ReturnIndex,
llvm::Attribute::NoAlias),
Attr_NoUnwind(NoAttrs, llvm::AttributeSet::FunctionIndex,
llvm::Attribute::NoUnwind),
Attr_ReadOnly(NoAttrs, llvm::AttributeSet::FunctionIndex,
llvm::Attribute::ReadOnly),
Attr_Cold(NoAttrs, llvm::AttributeSet::FunctionIndex,
llvm::Attribute::Cold),
Attr_Cold_NoReturn(Attr_Cold, llvm::AttributeSet::FunctionIndex,
llvm::Attribute::NoReturn),
Attr_ReadOnly_NoUnwind(Attr_ReadOnly, llvm::AttributeSet::FunctionIndex,
llvm::Attribute::NoUnwind),
Attr_ReadOnly_1_NoCapture(Attr_ReadOnly, 1, llvm::Attribute::NoCapture),
Attr_ReadOnly_1_3_NoCapture(Attr_ReadOnly_1_NoCapture, 3,
llvm::Attribute::NoCapture),
Attr_ReadOnly_NoUnwind_1_NoCapture(Attr_ReadOnly_1_NoCapture, ~0U,
llvm::Attribute::NoUnwind),
Attr_ReadNone(NoAttrs, ~0U, llvm::Attribute::ReadNone),
Attr_1_NoCapture(NoAttrs, 1, llvm::Attribute::NoCapture),
Attr_NoAlias_1_NoCapture(Attr_1_NoCapture, 0, llvm::Attribute::NoAlias),
Attr_1_2_NoCapture(Attr_1_NoCapture, 2, llvm::Attribute::NoCapture),
Attr_1_3_NoCapture(Attr_1_NoCapture, 3, llvm::Attribute::NoCapture),
Attr_1_4_NoCapture(Attr_1_NoCapture, 4, llvm::Attribute::NoCapture);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// void _d_assert(string file, uint line)
// void _d_arraybounds(string file, uint line)
createFwdDecl(LINKc, Type::tvoid, {"_d_assert", "_d_arraybounds"},
{stringTy, uintTy}, {}, Attr_Cold_NoReturn);
// void _d_assert_msg(string msg, string file, uint line)
createFwdDecl(LINKc, voidTy, {"_d_assert_msg"}, {stringTy, stringTy, uintTy},
{}, Attr_Cold_NoReturn);
// void _d_assertm(immutable(ModuleInfo)* m, uint line)
// void _d_array_bounds(immutable(ModuleInfo)* m, uint line)
// void _d_switch_error(immutable(ModuleInfo)* m, uint line)
createFwdDecl(
LINKc, voidTy, {"_d_assertm", "_d_array_bounds", "_d_switch_error"},
{moduleInfoPtrTy, uintTy}, {STCimmutable, 0}, Attr_Cold_NoReturn);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// void* _d_allocmemory(size_t sz)
createFwdDecl(LINKc, voidPtrTy, {"_d_allocmemory"}, {sizeTy}, {},
Attr_NoAlias);
// void* _d_allocmemoryT(TypeInfo ti)
createFwdDecl(LINKc, voidPtrTy, {"_d_allocmemoryT"}, {typeInfoTy}, {},
Attr_NoAlias);
// void[] _d_newarrayT (const TypeInfo ti, size_t length)
// void[] _d_newarrayiT(const TypeInfo ti, size_t length)
// void[] _d_newarrayU (const TypeInfo ti, size_t length)
createFwdDecl(LINKc, voidArrayTy,
{"_d_newarrayT", "_d_newarrayiT", "_d_newarrayU"},
{typeInfoTy, sizeTy}, {STCconst, 0});
// void[] _d_newarraymTX (const TypeInfo ti, size_t[] dims)
// void[] _d_newarraymiTX(const TypeInfo ti, size_t[] dims)
createFwdDecl(LINKc, voidArrayTy, {"_d_newarraymTX", "_d_newarraymiTX"},
{typeInfoTy, sizeTy->arrayOf()}, {STCconst, 0});
// void[] _d_arraysetlengthT (const TypeInfo ti, size_t newlength, void[]* p)
// void[] _d_arraysetlengthiT(const TypeInfo ti, size_t newlength, void[]* p)
createFwdDecl(LINKc, voidArrayTy,
{"_d_arraysetlengthT", "_d_arraysetlengthiT"},
{typeInfoTy, sizeTy, voidArrayPtrTy}, {STCconst, 0, 0});
// byte[] _d_arrayappendcTX(const TypeInfo ti, ref byte[] px, size_t n)
createFwdDecl(LINKc, voidArrayTy, {"_d_arrayappendcTX"},
{typeInfoTy, voidArrayTy, sizeTy}, {STCconst, STCref, 0});
// void[] _d_arrayappendT(const TypeInfo ti, ref byte[] x, byte[] y)
createFwdDecl(LINKc, voidArrayTy, {"_d_arrayappendT"},
{typeInfoTy, voidArrayTy, voidArrayTy}, {STCconst, STCref, 0});
// void[] _d_arrayappendcd(ref byte[] x, dchar c)
// void[] _d_arrayappendwd(ref byte[] x, dchar c)
createFwdDecl(LINKc, voidArrayTy, {"_d_arrayappendcd", "_d_arrayappendwd"},
{voidArrayTy, dcharTy}, {STCref, 0});
// byte[] _d_arraycatT(const TypeInfo ti, byte[] x, byte[] y)
createFwdDecl(LINKc, voidArrayTy, {"_d_arraycatT"},
{typeInfoTy, voidArrayTy, voidArrayTy}, {STCconst, 0, 0});
// void[] _d_arraycatnTX(const TypeInfo ti, byte[][] arrs)
createFwdDecl(LINKc, voidArrayTy, {"_d_arraycatnTX"},
{typeInfoTy, voidArrayTy->arrayOf()}, {STCconst, 0});
// Object _d_newclass(const ClassInfo ci)
createFwdDecl(LINKc, objectTy, {"_d_newclass"}, {classInfoTy}, {STCconst},
Attr_NoAlias);
// void* _d_newitemT (TypeInfo ti)
// void* _d_newitemiT(TypeInfo ti)
createFwdDecl(LINKc, voidPtrTy, {"_d_newitemT", "_d_newitemiT"}, {typeInfoTy},
{0}, Attr_NoAlias);
// void _d_delarray_t(void[]* p, const TypeInfo_Struct ti)
createFwdDecl(LINKc, voidTy, {"_d_delarray_t"},
{voidArrayPtrTy, Type::typeinfostruct->type}, {0, STCconst});
// void _d_delmemory(void** p)
// void _d_delinterface(void** p)
createFwdDecl(LINKc, voidTy, {"_d_delmemory", "_d_delinterface"},
{voidPtrTy->pointerTo()});
// void _d_callfinalizer(void* p)
createFwdDecl(LINKc, voidTy, {"_d_callfinalizer"}, {voidPtrTy});
// D2: void _d_delclass(Object* p)
createFwdDecl(LINKc, voidTy, {"_d_delclass"}, {objectTy->pointerTo()});
// void _d_delstruct(void** p, TypeInfo_Struct inf)
createFwdDecl(LINKc, voidTy, {"_d_delstruct"},
{voidPtrTy->pointerTo(), Type::typeinfostruct->type});
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// array slice copy when assertions are on!
// void _d_array_slice_copy(void* dst, size_t dstlen, void* src, size_t
// srclen)
createFwdDecl(LINKc, voidTy, {"_d_array_slice_copy"},
{voidPtrTy, sizeTy, voidPtrTy, sizeTy}, {}, Attr_1_3_NoCapture);
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// int _aApplycd1(in char[] aa, dg_t dg)
// int _aApplyRcd1(in char[] aa, dg_t dg)
#define STR_APPLY1(TY, a, b) \
{ \
const std::string prefix = "_aApply"; \
std::string fname1 = prefix + (a) + '1', fname2 = prefix + (b) + '1', \
fname3 = prefix + 'R' + (a) + '1', \
fname4 = prefix + 'R' + (b) + '1'; \
createFwdDecl(LINKc, sizeTy, {fname1, fname2, fname3, fname4}, \
{TY, rt_dg1()}); \
}
STR_APPLY1(stringTy, "cw", "cd")
STR_APPLY1(wstringTy, "wc", "wd")
STR_APPLY1(dstringTy, "dc", "dw")
#undef STR_APPLY1
// int _aApplycd2(in char[] aa, dg2_t dg)
// int _aApplyRcd2(in char[] aa, dg2_t dg)
#define STR_APPLY2(TY, a, b) \
{ \
const std::string prefix = "_aApply"; \
std::string fname1 = prefix + (a) + '2', fname2 = prefix + (b) + '2', \
fname3 = prefix + 'R' + (a) + '2', \
fname4 = prefix + 'R' + (b) + '2'; \
createFwdDecl(LINKc, sizeTy, {fname1, fname2, fname3, fname4}, \
{TY, rt_dg2()}); \
}
STR_APPLY2(stringTy, "cw", "cd")
STR_APPLY2(wstringTy, "wc", "wd")
STR_APPLY2(dstringTy, "dc", "dw")
#undef STR_APPLY2
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// fixes the length for dynamic array casts
// size_t _d_array_cast_len(size_t len, size_t elemsz, size_t newelemsz)
createFwdDecl(LINKc, sizeTy, {"_d_array_cast_len"}, {sizeTy, sizeTy, sizeTy},
{}, Attr_ReadNone);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// void[] _d_arrayassign_l(TypeInfo ti, void[] src, void[] dst, void* ptmp)
// void[] _d_arrayassign_r(TypeInfo ti, void[] src, void[] dst, void* ptmp)
createFwdDecl(LINKc, voidArrayTy, {"_d_arrayassign_l", "_d_arrayassign_r"},
{typeInfoTy, voidArrayTy, voidArrayTy, voidPtrTy});
// void[] _d_arrayctor(TypeInfo ti, void[] from, void[] to)
createFwdDecl(LINKc, voidArrayTy, {"_d_arrayctor"},
{typeInfoTy, voidArrayTy, voidArrayTy});
// void* _d_arraysetassign(void* p, void* value, int count, TypeInfo ti)
// void* _d_arraysetctor(void* p, void* value, int count, TypeInfo ti)
createFwdDecl(LINKc, voidPtrTy, {"_d_arraysetassign", "_d_arraysetctor"},
{voidPtrTy, voidPtrTy, intTy, typeInfoTy}, {}, Attr_NoAlias);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// cast interface
// void* _d_interface_cast(void* p, ClassInfo c)
createFwdDecl(LINKc, voidPtrTy, {"_d_interface_cast"},
{voidPtrTy, classInfoTy}, {}, Attr_ReadOnly_NoUnwind);
// dynamic cast
// void* _d_dynamic_cast(Object o, ClassInfo c)
createFwdDecl(LINKc, voidPtrTy, {"_d_dynamic_cast"}, {objectTy, classInfoTy},
{}, Attr_ReadOnly_NoUnwind);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// char[] _adReverseChar(char[] a)
// char[] _adSortChar(char[] a)
createFwdDecl(LINKc, stringTy, {"_adReverseChar", "_adSortChar"}, {stringTy});
// wchar[] _adReverseWchar(wchar[] a)
// wchar[] _adSortWchar(wchar[] a)
createFwdDecl(LINKc, wstringTy, {"_adReverseWchar", "_adSortWchar"},
{wstringTy});
// void[] _adReverse(void[] a, size_t szelem)
createFwdDecl(LINKc, wstringTy, {"_adReverse"}, {voidArrayTy, sizeTy}, {},
Attr_NoUnwind);
// int _adEq2(void[] a1, void[] a2, TypeInfo ti)
// int _adCmp2(void[] a1, void[] a2, TypeInfo ti)
createFwdDecl(LINKc, intTy, {"_adEq2", "_adCmp2"},
{voidArrayTy, voidArrayTy, typeInfoTy}, {}, Attr_ReadOnly);
// int _adCmpChar(void[] a1, void[] a2)
createFwdDecl(LINKc, intTy, {"_adCmpChar"}, {voidArrayTy, voidArrayTy}, {},
Attr_ReadOnly_NoUnwind);
// void[] _adSort(void[] a, TypeInfo ti)
createFwdDecl(LINKc, voidArrayTy, {"_adSort"}, {voidArrayTy, typeInfoTy});
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// size_t _aaLen(in AA aa)
createFwdDecl(LINKc, sizeTy, {"_aaLen"}, {aaTy}, {STCin},
Attr_ReadOnly_NoUnwind_1_NoCapture);
// void* _aaGetY(AA* aa, const TypeInfo aati, in size_t valuesize,
// in void* pkey)
createFwdDecl(LINKc, voidPtrTy, {"_aaGetY"},
{aaTy->pointerTo(), aaTypeInfoTy, sizeTy, voidPtrTy},
{0, STCconst, STCin, STCin}, Attr_1_4_NoCapture);
// inout(void)* _aaInX(inout AA aa, in TypeInfo keyti, in void* pkey)
// FIXME: "inout" storageclass is not applied to return type
createFwdDecl(LINKc, voidPtrTy, {"_aaInX"}, {aaTy, typeInfoTy, voidPtrTy},
{STCin | STCout, STCin, STCin}, Attr_ReadOnly_1_3_NoCapture);
// bool _aaDelX(AA aa, in TypeInfo keyti, in void* pkey)
createFwdDecl(LINKc, boolTy, {"_aaDelX"}, {aaTy, typeInfoTy, voidPtrTy},
{0, STCin, STCin}, Attr_1_3_NoCapture);
// inout(void[]) _aaValues(inout AA aa, in size_t keysize,
// in size_t valuesize, const TypeInfo tiValueArray)
createFwdDecl(
LINKc, voidArrayTy, {"_aaValues"}, {aaTy, sizeTy, sizeTy, typeInfoTy},
{STCin | STCout, STCin, STCin, STCconst}, Attr_ReadOnly_1_3_NoCapture);
// void* _aaRehash(AA* paa, in TypeInfo keyti)
createFwdDecl(LINKc, voidPtrTy, {"_aaRehash"},
{aaTy->pointerTo(), typeInfoTy}, {0, STCin});
// inout(void[]) _aaKeys(inout AA aa, in size_t keysize,
// const TypeInfo tiKeyArray)
createFwdDecl(LINKc, voidArrayTy, {"_aaKeys"}, {aaTy, sizeTy, typeInfoTy},
{STCin | STCout, STCin, STCconst}, Attr_NoAlias_1_NoCapture);
// int _aaApply(AA aa, in size_t keysize, dg_t dg)
createFwdDecl(LINKc, intTy, {"_aaApply"}, {aaTy, sizeTy, rt_dg1()},
{0, STCin, 0}, Attr_1_NoCapture);
// int _aaApply2(AA aa, in size_t keysize, dg2_t dg)
createFwdDecl(LINKc, intTy, {"_aaApply2"}, {aaTy, sizeTy, rt_dg2()},
{0, STCin, 0}, Attr_1_NoCapture);
// int _aaEqual(in TypeInfo tiRaw, in AA e1, in AA e2)
createFwdDecl(LINKc, intTy, {"_aaEqual"}, {typeInfoTy, aaTy, aaTy},
{STCin, STCin, STCin}, Attr_1_2_NoCapture);
// AA _d_assocarrayliteralTX(const TypeInfo_AssociativeArray ti,
// void[] keys, void[] values)
createFwdDecl(LINKc, aaTy, {"_d_assocarrayliteralTX"},
{aaTypeInfoTy, voidArrayTy, voidArrayTy}, {STCconst, 0, 0});
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// void _moduleCtor()
// void _moduleDtor()
createFwdDecl(LINKc, voidTy, {"_moduleCtor", "_moduleDtor"}, {});
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// void _d_throw_exception(Object e)
createFwdDecl(LINKc, voidTy, {"_d_throw_exception"}, {objectTy});
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// int _d_switch_string(char[][] table, char[] ca)
createFwdDecl(LINKc, intTy, {"_d_switch_string"},
{stringTy->arrayOf(), stringTy}, {}, Attr_ReadOnly);
// int _d_switch_ustring(wchar[][] table, wchar[] ca)
createFwdDecl(LINKc, intTy, {"_d_switch_ustring"},
{wstringTy->arrayOf(), wstringTy}, {}, Attr_ReadOnly);
// int _d_switch_dstring(dchar[][] table, dchar[] ca)
createFwdDecl(LINKc, intTy, {"_d_switch_dstring"},
{dstringTy->arrayOf(), dstringTy}, {}, Attr_ReadOnly);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// int _d_eh_personality(...)
{
if (global.params.targetTriple->isWindowsMSVCEnvironment()) {
const char *fname =
useMSVCEH() ? "__CxxFrameHandler3" : "_d_eh_personality";
// (ptr ExceptionRecord, ptr EstablisherFrame, ptr ContextRecord,
// ptr DispatcherContext)
createFwdDecl(LINKc, intTy, {fname},
{voidPtrTy, voidPtrTy, voidPtrTy, voidPtrTy});
} else if (global.params.targetTriple->getArch() == llvm::Triple::arm) {
// (int state, ptr ucb, ptr context)
createFwdDecl(LINKc, intTy, {"_d_eh_personality"},
{intTy, voidPtrTy, voidPtrTy});
} else {
// (int ver, int actions, ulong eh_class, ptr eh_info, ptr context)
createFwdDecl(LINKc, intTy, {"_d_eh_personality"},
{intTy, intTy, ulongTy, voidPtrTy, voidPtrTy});
}
}
if (useMSVCEH()) {
// _d_enter_cleanup(ptr frame)
createFwdDecl(LINKc, boolTy, {"_d_enter_cleanup"}, {voidPtrTy});
// _d_leave_cleanup(ptr frame)
createFwdDecl(LINKc, voidTy, {"_d_leave_cleanup"}, {voidPtrTy});
// Object _d_eh_enter_catch(ptr exception, ClassInfo catchType)
createFwdDecl(LINKc, objectTy, {"_d_eh_enter_catch"},
{voidPtrTy, classInfoTy}, {});
} else {
// void _d_eh_resume_unwind(ptr)
createFwdDecl(LINKc, voidTy, {"_d_eh_resume_unwind"}, {voidPtrTy});
// Object _d_eh_enter_catch(ptr)
createFwdDecl(LINKc, objectTy, {"_d_eh_enter_catch"}, {voidPtrTy}, {},
Attr_NoUnwind);
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// void invariant._d_invariant(Object o)
createFwdDecl(
LINKd, voidTy,
{gABI->mangleFunctionForLLVM("_D9invariant12_d_invariantFC6ObjectZv", LINKd)},
{objectTy});
// void _d_dso_registry(CompilerDSOData* data)
llvm::StringRef fname("_d_dso_registry");
LLType *LLvoidTy = LLType::getVoidTy(gIR->context());
LLType *LLvoidPtrPtrTy = getPtrToType(getPtrToType(LLvoidTy));
LLType *moduleInfoPtrPtrTy =
getPtrToType(getPtrToType(DtoType(Module::moduleinfo->type)));
llvm::StructType *dsoDataTy =
llvm::StructType::get(DtoSize_t(), // version
LLvoidPtrPtrTy, // slot
moduleInfoPtrPtrTy, // _minfo_beg
moduleInfoPtrPtrTy, // _minfo_end
NULL);
llvm::Type *types[] = {getPtrToType(dsoDataTy)};
llvm::FunctionType *fty = llvm::FunctionType::get(LLvoidTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// extern (C) void _d_cover_register2(string filename, size_t[] valid,
// uint[] data, ubyte minPercent)
if (global.params.cov) {
createFwdDecl(LINKc, voidTy, {"_d_cover_register2"},
{stringTy, sizeTy->arrayOf(), uintTy->arrayOf(), ubyteTy});
}
if (global.params.hasObjectiveC) {
assert(global.params.targetTriple->isOSDarwin());
// The types of these functions don't really matter because they are always
// bitcast to correct signature before calling.
Type* objectPtrTy = voidPtrTy;
Type* selectorPtrTy = voidPtrTy;
Type* realTy = Type::tfloat80;
// id objc_msgSend(id self, SEL op, ...)
// Function called early and/or often, so lazy binding isn't worthwhile.
createFwdDecl(LINKc, objectPtrTy, {"objc_msgSend"},
{objectPtrTy, selectorPtrTy}, {},
AttrSet(NoAttrs, ~0U, llvm::Attribute::NonLazyBind));
switch (global.params.targetTriple->getArch()) {
case llvm::Triple::x86_64:
// creal objc_msgSend_fp2ret(id self, SEL op, ...)
createFwdDecl(LINKc, Type::tcomplex80, {"objc_msgSend_fp2ret"},
{objectPtrTy, selectorPtrTy});
// fall-thru
case llvm::Triple::x86:
// x86_64 real return only, x86 float, double, real return
// real objc_msgSend_fpret(id self, SEL op, ...)
createFwdDecl(LINKc, realTy, {"objc_msgSend_fpret"},
{objectPtrTy, selectorPtrTy});
// fall-thru
case llvm::Triple::arm:
case llvm::Triple::thumb:
// used when return value is aggregate via a hidden sret arg
// void objc_msgSend_stret(T *sret_arg, id self, SEL op, ...)
createFwdDecl(LINKc, voidTy, {"objc_msgSend_stret"},
{objectPtrTy, selectorPtrTy});
break;
default:
break;
}
}
}