| pub use crate::llvm::Type; |
| |
| use crate::abi::{FnAbiLlvmExt, LlvmType}; |
| use crate::common; |
| use crate::context::CodegenCx; |
| use crate::llvm; |
| use crate::llvm::{Bool, False, True}; |
| use crate::type_of::LayoutLlvmExt; |
| use crate::value::Value; |
| use rustc_codegen_ssa::common::TypeKind; |
| use rustc_codegen_ssa::traits::*; |
| use rustc_data_structures::small_c_str::SmallCStr; |
| use rustc_middle::bug; |
| use rustc_middle::ty::layout::TyAndLayout; |
| use rustc_middle::ty::{self, Ty}; |
| use rustc_target::abi::call::{CastTarget, FnAbi, Reg}; |
| use rustc_target::abi::{AddressSpace, Align, Integer, Size}; |
| |
| use std::fmt; |
| use std::ptr; |
| |
| use libc::{c_char, c_uint}; |
| |
| impl PartialEq for Type { |
| fn eq(&self, other: &Self) -> bool { |
| ptr::eq(self, other) |
| } |
| } |
| |
| impl fmt::Debug for Type { |
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| f.write_str( |
| &llvm::build_string(|s| unsafe { |
| llvm::LLVMRustWriteTypeToString(self, s); |
| }) |
| .expect("non-UTF8 type description from LLVM"), |
| ) |
| } |
| } |
| |
| impl<'ll> CodegenCx<'ll, '_> { |
| pub(crate) fn type_named_struct(&self, name: &str) -> &'ll Type { |
| let name = SmallCStr::new(name); |
| unsafe { llvm::LLVMStructCreateNamed(self.llcx, name.as_ptr()) } |
| } |
| |
| pub(crate) fn set_struct_body(&self, ty: &'ll Type, els: &[&'ll Type], packed: bool) { |
| unsafe { llvm::LLVMStructSetBody(ty, els.as_ptr(), els.len() as c_uint, packed as Bool) } |
| } |
| |
| pub(crate) fn type_void(&self) -> &'ll Type { |
| unsafe { llvm::LLVMVoidTypeInContext(self.llcx) } |
| } |
| |
| pub(crate) fn type_token(&self) -> &'ll Type { |
| unsafe { llvm::LLVMTokenTypeInContext(self.llcx) } |
| } |
| |
| pub(crate) fn type_metadata(&self) -> &'ll Type { |
| unsafe { llvm::LLVMMetadataTypeInContext(self.llcx) } |
| } |
| |
| ///x Creates an integer type with the given number of bits, e.g., i24 |
| pub(crate) fn type_ix(&self, num_bits: u64) -> &'ll Type { |
| unsafe { llvm::LLVMIntTypeInContext(self.llcx, num_bits as c_uint) } |
| } |
| |
| pub(crate) fn type_vector(&self, ty: &'ll Type, len: u64) -> &'ll Type { |
| unsafe { llvm::LLVMVectorType(ty, len as c_uint) } |
| } |
| |
| pub(crate) fn func_params_types(&self, ty: &'ll Type) -> Vec<&'ll Type> { |
| unsafe { |
| let n_args = llvm::LLVMCountParamTypes(ty) as usize; |
| let mut args = Vec::with_capacity(n_args); |
| llvm::LLVMGetParamTypes(ty, args.as_mut_ptr()); |
| args.set_len(n_args); |
| args |
| } |
| } |
| |
| pub(crate) fn type_bool(&self) -> &'ll Type { |
| self.type_i8() |
| } |
| |
| pub(crate) fn type_int_from_ty(&self, t: ty::IntTy) -> &'ll Type { |
| match t { |
| ty::IntTy::Isize => self.type_isize(), |
| ty::IntTy::I8 => self.type_i8(), |
| ty::IntTy::I16 => self.type_i16(), |
| ty::IntTy::I32 => self.type_i32(), |
| ty::IntTy::I64 => self.type_i64(), |
| ty::IntTy::I128 => self.type_i128(), |
| } |
| } |
| |
| pub(crate) fn type_uint_from_ty(&self, t: ty::UintTy) -> &'ll Type { |
| match t { |
| ty::UintTy::Usize => self.type_isize(), |
| ty::UintTy::U8 => self.type_i8(), |
| ty::UintTy::U16 => self.type_i16(), |
| ty::UintTy::U32 => self.type_i32(), |
| ty::UintTy::U64 => self.type_i64(), |
| ty::UintTy::U128 => self.type_i128(), |
| } |
| } |
| |
| pub(crate) fn type_float_from_ty(&self, t: ty::FloatTy) -> &'ll Type { |
| match t { |
| ty::FloatTy::F32 => self.type_f32(), |
| ty::FloatTy::F64 => self.type_f64(), |
| } |
| } |
| |
| /// Return an LLVM type that has at most the required alignment, |
| /// and exactly the required size, as a best-effort padding array. |
| pub(crate) fn type_padding_filler(&self, size: Size, align: Align) -> &'ll Type { |
| let unit = Integer::approximate_align(self, align); |
| let size = size.bytes(); |
| let unit_size = unit.size().bytes(); |
| assert_eq!(size % unit_size, 0); |
| self.type_array(self.type_from_integer(unit), size / unit_size) |
| } |
| |
| pub(crate) fn type_variadic_func(&self, args: &[&'ll Type], ret: &'ll Type) -> &'ll Type { |
| unsafe { llvm::LLVMFunctionType(ret, args.as_ptr(), args.len() as c_uint, True) } |
| } |
| } |
| |
| impl<'ll, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'ll, 'tcx> { |
| fn type_i1(&self) -> &'ll Type { |
| unsafe { llvm::LLVMInt1TypeInContext(self.llcx) } |
| } |
| |
| fn type_i8(&self) -> &'ll Type { |
| unsafe { llvm::LLVMInt8TypeInContext(self.llcx) } |
| } |
| |
| fn type_i16(&self) -> &'ll Type { |
| unsafe { llvm::LLVMInt16TypeInContext(self.llcx) } |
| } |
| |
| fn type_i32(&self) -> &'ll Type { |
| unsafe { llvm::LLVMInt32TypeInContext(self.llcx) } |
| } |
| |
| fn type_i64(&self) -> &'ll Type { |
| unsafe { llvm::LLVMInt64TypeInContext(self.llcx) } |
| } |
| |
| fn type_i128(&self) -> &'ll Type { |
| unsafe { llvm::LLVMIntTypeInContext(self.llcx, 128) } |
| } |
| |
| fn type_isize(&self) -> &'ll Type { |
| self.isize_ty |
| } |
| |
| fn type_f32(&self) -> &'ll Type { |
| unsafe { llvm::LLVMFloatTypeInContext(self.llcx) } |
| } |
| |
| fn type_f64(&self) -> &'ll Type { |
| unsafe { llvm::LLVMDoubleTypeInContext(self.llcx) } |
| } |
| |
| fn type_func(&self, args: &[&'ll Type], ret: &'ll Type) -> &'ll Type { |
| unsafe { llvm::LLVMFunctionType(ret, args.as_ptr(), args.len() as c_uint, False) } |
| } |
| |
| fn type_struct(&self, els: &[&'ll Type], packed: bool) -> &'ll Type { |
| unsafe { |
| llvm::LLVMStructTypeInContext( |
| self.llcx, |
| els.as_ptr(), |
| els.len() as c_uint, |
| packed as Bool, |
| ) |
| } |
| } |
| |
| fn type_kind(&self, ty: &'ll Type) -> TypeKind { |
| unsafe { llvm::LLVMRustGetTypeKind(ty).to_generic() } |
| } |
| |
| fn type_ptr(&self) -> &'ll Type { |
| self.type_ptr_ext(AddressSpace::DATA) |
| } |
| |
| fn type_ptr_ext(&self, address_space: AddressSpace) -> &'ll Type { |
| unsafe { llvm::LLVMPointerTypeInContext(self.llcx, address_space.0) } |
| } |
| |
| fn element_type(&self, ty: &'ll Type) -> &'ll Type { |
| match self.type_kind(ty) { |
| TypeKind::Array | TypeKind::Vector => unsafe { llvm::LLVMGetElementType(ty) }, |
| TypeKind::Pointer => bug!("element_type is not supported for opaque pointers"), |
| other => bug!("element_type called on unsupported type {:?}", other), |
| } |
| } |
| |
| fn vector_length(&self, ty: &'ll Type) -> usize { |
| unsafe { llvm::LLVMGetVectorSize(ty) as usize } |
| } |
| |
| fn float_width(&self, ty: &'ll Type) -> usize { |
| match self.type_kind(ty) { |
| TypeKind::Float => 32, |
| TypeKind::Double => 64, |
| TypeKind::X86_FP80 => 80, |
| TypeKind::FP128 | TypeKind::PPC_FP128 => 128, |
| _ => bug!("llvm_float_width called on a non-float type"), |
| } |
| } |
| |
| fn int_width(&self, ty: &'ll Type) -> u64 { |
| unsafe { llvm::LLVMGetIntTypeWidth(ty) as u64 } |
| } |
| |
| fn val_ty(&self, v: &'ll Value) -> &'ll Type { |
| common::val_ty(v) |
| } |
| |
| fn type_array(&self, ty: &'ll Type, len: u64) -> &'ll Type { |
| unsafe { llvm::LLVMRustArrayType(ty, len) } |
| } |
| } |
| |
| impl Type { |
| pub fn i8_llcx(llcx: &llvm::Context) -> &Type { |
| unsafe { llvm::LLVMInt8TypeInContext(llcx) } |
| } |
| |
| /// Creates an integer type with the given number of bits, e.g., i24 |
| pub fn ix_llcx(llcx: &llvm::Context, num_bits: u64) -> &Type { |
| unsafe { llvm::LLVMIntTypeInContext(llcx, num_bits as c_uint) } |
| } |
| |
| pub fn ptr_llcx(llcx: &llvm::Context) -> &Type { |
| unsafe { llvm::LLVMPointerTypeInContext(llcx, AddressSpace::DATA.0) } |
| } |
| } |
| |
| impl<'ll, 'tcx> LayoutTypeMethods<'tcx> for CodegenCx<'ll, 'tcx> { |
| fn backend_type(&self, layout: TyAndLayout<'tcx>) -> &'ll Type { |
| layout.llvm_type(self) |
| } |
| fn immediate_backend_type(&self, layout: TyAndLayout<'tcx>) -> &'ll Type { |
| layout.immediate_llvm_type(self) |
| } |
| fn is_backend_immediate(&self, layout: TyAndLayout<'tcx>) -> bool { |
| layout.is_llvm_immediate() |
| } |
| fn is_backend_scalar_pair(&self, layout: TyAndLayout<'tcx>) -> bool { |
| layout.is_llvm_scalar_pair() |
| } |
| fn backend_field_index(&self, layout: TyAndLayout<'tcx>, index: usize) -> u64 { |
| layout.llvm_field_index(self, index) |
| } |
| fn scalar_pair_element_backend_type( |
| &self, |
| layout: TyAndLayout<'tcx>, |
| index: usize, |
| immediate: bool, |
| ) -> &'ll Type { |
| layout.scalar_pair_element_llvm_type(self, index, immediate) |
| } |
| fn cast_backend_type(&self, ty: &CastTarget) -> &'ll Type { |
| ty.llvm_type(self) |
| } |
| fn fn_decl_backend_type(&self, fn_abi: &FnAbi<'tcx, Ty<'tcx>>) -> &'ll Type { |
| fn_abi.llvm_type(self) |
| } |
| fn fn_ptr_backend_type(&self, fn_abi: &FnAbi<'tcx, Ty<'tcx>>) -> &'ll Type { |
| fn_abi.ptr_to_llvm_type(self) |
| } |
| fn reg_backend_type(&self, ty: &Reg) -> &'ll Type { |
| ty.llvm_type(self) |
| } |
| fn scalar_copy_backend_type(&self, layout: TyAndLayout<'tcx>) -> Option<Self::Type> { |
| layout.scalar_copy_llvm_type(self) |
| } |
| } |
| |
| impl<'ll, 'tcx> TypeMembershipMethods<'tcx> for CodegenCx<'ll, 'tcx> { |
| fn add_type_metadata(&self, function: &'ll Value, typeid: String) { |
| let typeid_metadata = self.typeid_metadata(typeid).unwrap(); |
| let v = [self.const_usize(0), typeid_metadata]; |
| unsafe { |
| llvm::LLVMRustGlobalAddMetadata( |
| function, |
| llvm::MD_type as c_uint, |
| llvm::LLVMValueAsMetadata(llvm::LLVMMDNodeInContext( |
| self.llcx, |
| v.as_ptr(), |
| v.len() as c_uint, |
| )), |
| ) |
| } |
| } |
| |
| fn set_type_metadata(&self, function: &'ll Value, typeid: String) { |
| let typeid_metadata = self.typeid_metadata(typeid).unwrap(); |
| let v = [self.const_usize(0), typeid_metadata]; |
| unsafe { |
| llvm::LLVMGlobalSetMetadata( |
| function, |
| llvm::MD_type as c_uint, |
| llvm::LLVMValueAsMetadata(llvm::LLVMMDNodeInContext( |
| self.llcx, |
| v.as_ptr(), |
| v.len() as c_uint, |
| )), |
| ) |
| } |
| } |
| |
| fn typeid_metadata(&self, typeid: String) -> Option<&'ll Value> { |
| Some(unsafe { |
| llvm::LLVMMDStringInContext( |
| self.llcx, |
| typeid.as_ptr() as *const c_char, |
| typeid.len() as c_uint, |
| ) |
| }) |
| } |
| |
| fn add_kcfi_type_metadata(&self, function: &'ll Value, kcfi_typeid: u32) { |
| let kcfi_type_metadata = self.const_u32(kcfi_typeid); |
| unsafe { |
| llvm::LLVMRustGlobalAddMetadata( |
| function, |
| llvm::MD_kcfi_type as c_uint, |
| llvm::LLVMMDNodeInContext2( |
| self.llcx, |
| &llvm::LLVMValueAsMetadata(kcfi_type_metadata), |
| 1, |
| ), |
| ) |
| } |
| } |
| |
| fn set_kcfi_type_metadata(&self, function: &'ll Value, kcfi_typeid: u32) { |
| let kcfi_type_metadata = self.const_u32(kcfi_typeid); |
| unsafe { |
| llvm::LLVMGlobalSetMetadata( |
| function, |
| llvm::MD_kcfi_type as c_uint, |
| llvm::LLVMMDNodeInContext2( |
| self.llcx, |
| &llvm::LLVMValueAsMetadata(kcfi_type_metadata), |
| 1, |
| ), |
| ) |
| } |
| } |
| } |
