mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
Generate runtime functions from an xmacro database.
Swift SVN r6266
This commit is contained in:
John McCall
@@ -187,6 +187,7 @@ IRGenModule::~IRGenModule() {
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static llvm::Constant *getRuntimeFn(IRGenModule &IGM,
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llvm::Constant *&cache,
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char const *name,
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llvm::CallingConv::ID cc,
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std::initializer_list<llvm::Type*> retTypes,
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std::initializer_list<llvm::Type*> argTypes,
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std::initializer_list<Attribute::AttrKind> attrs
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@@ -209,7 +210,7 @@ static llvm::Constant *getRuntimeFn(IRGenModule &IGM,
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// Add any function attributes and set the calling convention.
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if (auto fn = dyn_cast<llvm::Function>(cache)) {
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fn->setCallingConv(IGM.RuntimeCC);
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fn->setCallingConv(cc);
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for (auto Attr : attrs)
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fn->addFnAttr(Attr);
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@@ -218,198 +219,31 @@ static llvm::Constant *getRuntimeFn(IRGenModule &IGM,
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return cache;
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}
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llvm::Constant *IRGenModule::getAllocBoxFn() {
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// struct { RefCounted *box; void *value; } swift_allocBox(Metadata *type);
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return getRuntimeFn(*this, AllocBoxFn, "swift_allocBox",
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{ RefCountedPtrTy, OpaquePtrTy },
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{ TypeMetadataPtrTy },
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{ Attribute::NoUnwind });
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// Explicitly listing these constants is an unfortunate compromise for
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// making the database file much more compact.
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//
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// They have to be non-local because otherwise we'll get warnings when
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// a particular x-macro expansion doesn't use one.
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namespace RuntimeConstants {
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const auto ReadNone = llvm::Attribute::ReadNone;
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const auto ReadOnly = llvm::Attribute::ReadOnly;
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const auto NoUnwind = llvm::Attribute::NoUnwind;
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const auto C_CC = llvm::CallingConv::C;
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}
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llvm::Constant *IRGenModule::getAllocObjectFn() {
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// RefCounted *swift_allocObject(Metadata *type, size_t size, size_t align);
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return getRuntimeFn(*this, AllocObjectFn, "swift_allocObject",
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{ RefCountedPtrTy },
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{ TypeMetadataPtrTy, SizeTy, SizeTy },
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{ Attribute::NoUnwind });
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}
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llvm::Constant *IRGenModule::getDeallocObjectFn() {
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// void swift_deallocObject(RefCounted *obj, size_t size);
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return getRuntimeFn(*this, DeallocObjectFn, "swift_deallocObject",
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{ VoidTy },
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{ RefCountedPtrTy, SizeTy },
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{ Attribute::NoUnwind });
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}
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llvm::Constant *IRGenModule::getRawAllocFn() {
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/// void *swift_rawAlloc(SwiftAllocIndex index);
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return getRuntimeFn(*this, RawAllocFn, "swift_rawAlloc",
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{ Int8PtrTy },
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{ SizeTy },
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{ Attribute::NoUnwind });
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}
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llvm::Constant *IRGenModule::getRawDeallocFn() {
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/// void swift_rawDealloc(void *ptr, SwiftAllocIndex index);
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return getRuntimeFn(*this, RawDeallocFn, "swift_rawDealloc",
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{ VoidTy },
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{ Int8PtrTy, SizeTy },
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{ Attribute::NoUnwind });
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}
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llvm::Constant *IRGenModule::getSlowAllocFn() {
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/// void *swift_slowAlloc(size_t size, size_t flags);
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return getRuntimeFn(*this, SlowAllocFn, "swift_slowAlloc",
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{ Int8PtrTy },
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{ SizeTy, SizeTy },
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{ Attribute::NoUnwind });
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}
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llvm::Constant *IRGenModule::getSlowRawDeallocFn() {
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/// void swift_slowRawDealloc(void *ptr, size_t size);
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return getRuntimeFn(*this, SlowRawDeallocFn, "swift_slowRawDealloc",
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{ VoidTy },
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{ Int8PtrTy, SizeTy },
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{ Attribute::NoUnwind });
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}
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llvm::Constant *IRGenModule::getCopyPODFn() {
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/// void *swift_copyPOD(void *dest, void *src, Metadata *self);
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return getRuntimeFn(*this, CopyPODFn, "swift_copyPOD",
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{ OpaquePtrTy },
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{ OpaquePtrTy, OpaquePtrTy, TypeMetadataPtrTy },
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{ Attribute::NoUnwind });
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}
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llvm::Constant *IRGenModule::getDynamicCastClassFn() {
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// void *swift_dynamicCastClass(void*, void*);
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return getRuntimeFn(*this, DynamicCastClassFn, "swift_dynamicCastClass",
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{ Int8PtrTy },
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{ Int8PtrTy, Int8PtrTy },
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{ Attribute::NoUnwind, Attribute::ReadOnly });
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}
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llvm::Constant *IRGenModule::getDynamicCastClassUnconditionalFn() {
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// void *swift_dynamicCastClassUnconditional(void*, void*);
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return getRuntimeFn(*this, DynamicCastClassUnconditionalFn,
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"swift_dynamicCastClassUnconditional",
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{ Int8PtrTy },
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{ Int8PtrTy, Int8PtrTy },
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{ Attribute::NoUnwind, Attribute::ReadOnly });
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}
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llvm::Constant *IRGenModule::getDynamicCastFn() {
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// void *swift_dynamicCast(void*, void*);
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return getRuntimeFn(*this, DynamicCastFn, "swift_dynamicCast",
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{ Int8PtrTy },
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{ Int8PtrTy, Int8PtrTy },
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{ Attribute::NoUnwind, Attribute::ReadOnly });
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}
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llvm::Constant *IRGenModule::getDynamicCastUnconditionalFn() {
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// void *swift_dynamicCastUnconditional(void*, void*);
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return getRuntimeFn(*this, DynamicCastUnconditionalFn,
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"swift_dynamicCastUnconditional",
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{ Int8PtrTy },
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{ Int8PtrTy, Int8PtrTy },
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{ Attribute::NoUnwind, Attribute::ReadOnly });
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}
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llvm::Constant *IRGenModule::getDynamicCastIndirectFn() {
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// opaque *swift_dynamicCastIndirect(opaque*, void*, void*);
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return getRuntimeFn(*this, DynamicCastIndirectFn,
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"swift_dynamicCastIndirect",
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{ OpaquePtrTy },
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{ OpaquePtrTy, Int8PtrTy, Int8PtrTy },
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{ Attribute::NoUnwind, llvm::Attribute::ReadOnly });
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}
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llvm::Constant *IRGenModule::getDynamicCastIndirectUnconditionalFn() {
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// opaque *swift_dynamicCastIndirectUnconditional(opaque*, void*, void*);
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return getRuntimeFn(*this, DynamicCastIndirectUnconditionalFn,
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"swift_dynamicCastIndirectUnconditional",
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{ OpaquePtrTy },
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{ OpaquePtrTy, Int8PtrTy, Int8PtrTy },
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{ Attribute::NoUnwind, llvm::Attribute::ReadOnly });
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}
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llvm::Constant *IRGenModule::getRetainNoResultFn() {
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// void swift_retainNoResult(void *ptr);
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getRuntimeFn(*this, RetainNoResultFn, "swift_retain_noresult",
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{ VoidTy }, { RefCountedPtrTy },
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{ Attribute::NoUnwind });
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if (auto fn = dyn_cast<llvm::Function>(RetainNoResultFn))
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fn->setDoesNotCapture(1);
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return RetainNoResultFn;
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}
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llvm::Constant *IRGenModule::getReleaseFn() {
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// void swift_release(void *ptr);
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getRuntimeFn(*this, ReleaseFn, "swift_release",
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{ VoidTy }, { RefCountedPtrTy }, { Attribute::NoUnwind });
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if (auto fn = dyn_cast<llvm::Function>(ReleaseFn))
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fn->setDoesNotCapture(1);
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return ReleaseFn;
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}
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llvm::Constant *IRGenModule::getGetFunctionMetadataFn() {
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// type_metadata_t *swift_getFunctionMetadata(type_metadata_t *arg,
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// type_metadata_t *result);
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return getRuntimeFn(*this, GetFunctionMetadataFn,
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"swift_getFunctionTypeMetadata",
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{ TypeMetadataPtrTy },
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{ TypeMetadataPtrTy, TypeMetadataPtrTy },
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{ Attribute::NoUnwind, Attribute::ReadNone });
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}
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llvm::Constant *IRGenModule::getGetGenericMetadataFn() {
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// type_metadata_t *swift_getGenericMetadata(type_metadata_pattern_t *pattern,
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// const void *arguments);
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return getRuntimeFn(*this, GetGenericMetadataFn, "swift_getGenericMetadata",
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{ TypeMetadataPtrTy },
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{ TypeMetadataPatternPtrTy, Int8PtrTy });
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}
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llvm::Constant *IRGenModule::getGetMetatypeMetadataFn() {
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// type_metadata_t *swift_getMetatypeMetadata(type_metadata_t *instanceTy);
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return getRuntimeFn(*this, GetMetatypeMetadataFn, "swift_getMetatypeMetadata",
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{ TypeMetadataPtrTy },
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{ TypeMetadataPtrTy },
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{ Attribute::NoUnwind, Attribute::ReadNone });
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}
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llvm::Constant *IRGenModule::getGetObjCClassMetadataFn() {
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// type_metadata_t *swift_getObjCClassMetadata(struct objc_class *theClass);
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return getRuntimeFn(*this, GetObjCClassMetadataFn, "swift_getObjCClassMetadata",
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{ TypeMetadataPtrTy },
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{ TypeMetadataPtrTy },
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{ Attribute::NoUnwind, Attribute::ReadNone });
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}
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llvm::Constant *IRGenModule::getStaticTypeofFn() {
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// type_metadata_t *swift_staticTypeof(opaque_t *obj, type_metadata_t *self);
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return getRuntimeFn(*this, StaticTypeofFn, "swift_staticTypeof",
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{ TypeMetadataPtrTy },
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{ OpaquePtrTy, TypeMetadataPtrTy },
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{ Attribute::NoUnwind, Attribute::ReadNone });
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}
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llvm::Constant *IRGenModule::getObjectTypeofFn() {
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// type_metadata_t *swift_objectTypeof(opaque_t *obj, type_metadata_t *self);
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return getRuntimeFn(*this, ObjectTypeofFn, "swift_objectTypeof",
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{ TypeMetadataPtrTy },
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{ OpaquePtrTy, TypeMetadataPtrTy },
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{ Attribute::NoUnwind });
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}
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llvm::Constant *IRGenModule::getObjCTypeofFn() {
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// type_metadata_t *swift_objcTypeof(opaque_t *obj, type_metadata_t *self);
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return getRuntimeFn(*this, ObjCTypeofFn, "swift_objcTypeof",
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{ TypeMetadataPtrTy },
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{ OpaquePtrTy, TypeMetadataPtrTy },
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{ Attribute::NoUnwind });
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#define RETURNS(...) { __VA_ARGS__ }
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#define ARGS(...) { __VA_ARGS__ }
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#define NO_ARGS {}
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#define ATTRS(...) { __VA_ARGS__ }
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#define NO_ATTRS {}
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#define FUNCTION(ID, NAME, CC, RETURNS, ARGS, ATTRS) \
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llvm::Constant *IRGenModule::get##ID##Fn() { \
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using namespace RuntimeConstants; \
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return getRuntimeFn(*this, ID##Fn, #NAME, CC, \
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RETURNS, ARGS, ATTRS); \
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}
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#include "RuntimeFunctions.def"
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llvm::Constant *IRGenModule::getEmptyTupleMetadata() {
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if (EmptyTupleMetadata)
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@@ -419,82 +253,6 @@ llvm::Constant *IRGenModule::getEmptyTupleMetadata() {
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Module.getOrInsertGlobal("_TMdT_", FullTypeMetadataStructTy);
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}
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llvm::Constant *IRGenModule::getGetTupleMetadataFn() {
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// type_metadata_t *swift_getTupleMetadata(size_t numElements,
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// type_metadata_t * const *elements,
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// const char *labels,
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// value_witness_table_t *proposed);
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return getRuntimeFn(*this, GetTupleMetadataFn, "swift_getTupleTypeMetadata",
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{ TypeMetadataPtrTy },
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{
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SizeTy,
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TypeMetadataPtrTy->getPointerTo(0),
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Int8PtrTy,
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WitnessTablePtrTy
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},
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{ Attribute::NoUnwind, Attribute::ReadOnly });
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}
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llvm::Constant *IRGenModule::getGetTupleMetadata2Fn() {
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// type_metadata_t *swift_getTupleMetadata2(type_metadata_t *elt0,
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// type_metadata_t *elt1,
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// const char *labels,
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// value_witness_table_t *proposed);
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return getRuntimeFn(*this, GetTupleMetadata2Fn, "swift_getTupleTypeMetadata2",
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{ TypeMetadataPtrTy },
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{
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TypeMetadataPtrTy,
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TypeMetadataPtrTy,
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Int8PtrTy,
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WitnessTablePtrTy
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},
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{ Attribute::NoUnwind, Attribute::ReadNone });
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}
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llvm::Constant *IRGenModule::getGetTupleMetadata3Fn() {
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// type_metadata_t *swift_getTupleMetadata3(type_metadata_t *elt0,
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// type_metadata_t *elt1,
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// type_metadata_t *elt2,
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// const char *labels,
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// value_witness_table_t *proposed);
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return getRuntimeFn(*this, GetTupleMetadata3Fn, "swift_getTupleTypeMetadata3",
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{ TypeMetadataPtrTy },
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{
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TypeMetadataPtrTy,
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TypeMetadataPtrTy,
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TypeMetadataPtrTy,
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Int8PtrTy,
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WitnessTablePtrTy
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},
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{ Attribute::NoUnwind, Attribute::ReadNone });
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}
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llvm::Constant *IRGenModule::getGetObjectClassFn() {
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if (GetObjectClassFn) return GetObjectClassFn;
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// Class object_getClass(id object);
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// This is an Objective-C runtime function.
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// We have to mark it readonly instead of readnone because isa-rewriting
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// can have a noticeable effect here.
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return getRuntimeFn(*this, GetObjectClassFn, "object_getClass",
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{ TypeMetadataPtrTy },
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{ ObjCPtrTy },
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{ Attribute::NoUnwind, Attribute::ReadOnly });
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}
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llvm::Constant *IRGenModule::getGetObjectTypeFn() {
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// type_metadata_t *swift_getObjectType(id object);
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// Since this supposedly looks through dynamic subclasses, it's
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// invariant across reasonable isa-rewriting schemes and therefore
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// can be readnone.
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return getRuntimeFn(*this, GetObjectTypeFn, "swift_getObjectType",
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{ TypeMetadataPtrTy },
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{ ObjCPtrTy },
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{ Attribute::NoUnwind, Attribute::ReadNone });
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}
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llvm::Constant *IRGenModule::getObjCEmptyCachePtr() {
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if (ObjCEmptyCachePtr) return ObjCEmptyCachePtr;
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