.collect::<Vec<_>>()
};
- if let TypeVariants::TyFnDef(def_id, substs) = fn_ty.sty {
- if sig.abi == Abi::RustIntrinsic {
- let intrinsic = fx.tcx.item_name(def_id).as_str();
- let intrinsic = &intrinsic[..];
-
- let ret = match destination {
- Some((place, _)) => trans_place(fx, place),
- None => {
- println!(
- "codegen_call(fx, {:?}, {:?}, {:?})",
- func, args, destination
- );
- // Insert non returning intrinsics here
- match intrinsic {
- "abort" => {
- fx.bcx.ins().trap(TrapCode::User(!0 - 1));
- }
- "unreachable" => {
- fx.bcx.ins().trap(TrapCode::User(!0 - 1));
- }
- _ => unimplemented!("unsupported instrinsic {}", intrinsic),
- }
- return;
- }
- };
-
- codegen_intrinsic_call(fx, intrinsic, substs, args, ret);
-
- if let Some((_, dest)) = *destination {
- let ret_ebb = fx.get_ebb(dest);
- fx.bcx.ins().jump(ret_ebb, &[]);
- } else {
- fx.bcx.ins().trap(TrapCode::User(!0));
- }
- return;
- }
+ if codegen_intrinsic_call(fx, fn_ty, sig, &args, destination) {
+ return;
}
let return_ptr = match destination {
fn codegen_intrinsic_call<'a, 'tcx: 'a>(
fx: &mut FunctionCx<'a, 'tcx>,
- intrinsic: &str,
- substs: &Substs<'tcx>,
- args: Vec<CValue<'tcx>>,
- ret: CPlace<'tcx>,
-) {
- let nil_ty = fx.tcx.mk_nil();
- let u64_layout = fx.layout_of(fx.tcx.types.u64);
- let usize_layout = fx.layout_of(fx.tcx.types.usize);
+ fn_ty: Ty<'tcx>,
+ sig: FnSig<'tcx>,
+ args: &[CValue<'tcx>],
+ destination: &Option<(Place<'tcx>, BasicBlock)>,
+) -> bool {
+ if let TypeVariants::TyFnDef(def_id, substs) = fn_ty.sty {
+ if sig.abi == Abi::RustIntrinsic {
+ let intrinsic = fx.tcx.item_name(def_id).as_str();
+ let intrinsic = &intrinsic[..];
- match intrinsic {
- "assume" => {
- assert_eq!(args.len(), 1);
- }
- "arith_offset" => {
- assert_eq!(args.len(), 2);
- let base = args[0].load_value(fx);
- let offset = args[1].load_value(fx);
- let res = fx.bcx.ins().iadd(base, offset);
- let res = CValue::ByVal(res, ret.layout());
- ret.write_cvalue(fx, res);
- }
- "likely" | "unlikely" => {
- assert_eq!(args.len(), 1);
- ret.write_cvalue(fx, args[0]);
- }
- "copy" | "copy_nonoverlapping" => {
- let elem_ty = substs.type_at(0);
- let elem_size: u64 = fx.layout_of(elem_ty).size.bytes();
- let elem_size = fx.bcx.ins().iconst(types::I64, elem_size as i64);
- assert_eq!(args.len(), 3);
- let src = args[0];
- let dst = args[1];
- let count = args[2].load_value(fx);
- let byte_amount = fx.bcx.ins().imul(count, elem_size);
- fx.easy_call(
- "memmove",
- &[dst, src, CValue::ByVal(byte_amount, usize_layout)],
- nil_ty,
- );
- }
- "discriminant_value" => {
- assert_eq!(args.len(), 1);
- let discr = crate::base::trans_get_discriminant(fx, args[0], ret.layout());
- ret.write_cvalue(fx, discr);
- }
- "size_of" => {
- assert_eq!(args.len(), 0);
- let size_of = fx.layout_of(substs.type_at(0)).size.bytes();
- let size_of = CValue::const_val(fx, usize_layout.ty, size_of as i64);
- ret.write_cvalue(fx, size_of);
- }
- "type_id" => {
- assert_eq!(args.len(), 0);
- let type_id = fx.tcx.type_id_hash(substs.type_at(0));
- let type_id = CValue::const_val(fx, u64_layout.ty, type_id as i64);
- ret.write_cvalue(fx, type_id);
- }
- "min_align_of" => {
- assert_eq!(args.len(), 0);
- let min_align = fx.layout_of(substs.type_at(0)).align.abi();
- let min_align = CValue::const_val(fx, usize_layout.ty, min_align as i64);
- ret.write_cvalue(fx, min_align);
- }
- _ if intrinsic.starts_with("unchecked_") => {
- assert_eq!(args.len(), 2);
- let bin_op = match intrinsic {
- "unchecked_div" => BinOp::Div,
- "unchecked_rem" => BinOp::Rem,
- "unchecked_shl" => BinOp::Shl,
- "unchecked_shr" => BinOp::Shr,
- _ => unimplemented!("intrinsic {}", intrinsic),
- };
- let res = match ret.layout().ty.sty {
- TypeVariants::TyUint(_) => crate::base::trans_int_binop(
- fx,
- bin_op,
- args[0],
- args[1],
- ret.layout().ty,
- false,
- ),
- TypeVariants::TyInt(_) => crate::base::trans_int_binop(
- fx,
- bin_op,
- args[0],
- args[1],
- ret.layout().ty,
- true,
- ),
- _ => panic!(),
- };
- ret.write_cvalue(fx, res);
- }
- _ if intrinsic.ends_with("_with_overflow") => {
- assert_eq!(args.len(), 2);
- assert_eq!(args[0].layout().ty, args[1].layout().ty);
- let bin_op = match intrinsic {
- "add_with_overflow" => BinOp::Add,
- "sub_with_overflow" => BinOp::Sub,
- "mul_with_overflow" => BinOp::Mul,
- _ => unimplemented!("intrinsic {}", intrinsic),
- };
- let res = match args[0].layout().ty.sty {
- TypeVariants::TyUint(_) => crate::base::trans_checked_int_binop(
- fx,
- bin_op,
- args[0],
- args[1],
- ret.layout().ty,
- false,
- ),
- TypeVariants::TyInt(_) => crate::base::trans_checked_int_binop(
- fx,
- bin_op,
- args[0],
- args[1],
- ret.layout().ty,
- true,
- ),
- _ => panic!(),
- };
- ret.write_cvalue(fx, res);
- }
- _ if intrinsic.starts_with("overflowing_") => {
- assert_eq!(args.len(), 2);
- assert_eq!(args[0].layout().ty, args[1].layout().ty);
- let bin_op = match intrinsic {
- "overflowing_add" => BinOp::Add,
- "overflowing_sub" => BinOp::Sub,
- "overflowing_mul" => BinOp::Mul,
- _ => unimplemented!("intrinsic {}", intrinsic),
- };
- let res = match args[0].layout().ty.sty {
- TypeVariants::TyUint(_) => crate::base::trans_int_binop(
- fx,
- bin_op,
- args[0],
- args[1],
- ret.layout().ty,
- false,
- ),
- TypeVariants::TyInt(_) => crate::base::trans_int_binop(
- fx,
- bin_op,
- args[0],
- args[1],
- ret.layout().ty,
- true,
- ),
- _ => panic!(),
+ let ret = match destination {
+ Some((place, _)) => trans_place(fx, place),
+ None => {
+ println!(
+ "codegen_call(fx, _, {:?}, {:?})",
+ args, destination
+ );
+ // Insert non returning intrinsics here
+ match intrinsic {
+ "abort" => {
+ fx.bcx.ins().trap(TrapCode::User(!0 - 1));
+ }
+ "unreachable" => {
+ fx.bcx.ins().trap(TrapCode::User(!0 - 1));
+ }
+ _ => unimplemented!("unsupported instrinsic {}", intrinsic),
+ }
+ return true;
+ }
};
- ret.write_cvalue(fx, res);
- }
- "offset" => {
- assert_eq!(args.len(), 2);
- let base = args[0].load_value(fx);
- let offset = args[1].load_value(fx);
- let res = fx.bcx.ins().iadd(base, offset);
- ret.write_cvalue(fx, CValue::ByVal(res, args[0].layout()));
- }
- "transmute" => {
- assert_eq!(args.len(), 1);
- let src_ty = substs.type_at(0);
- let dst_ty = substs.type_at(1);
- assert_eq!(args[0].layout().ty, src_ty);
- let addr = args[0].force_stack(fx);
- let dst_layout = fx.layout_of(dst_ty);
- ret.write_cvalue(fx, CValue::ByRef(addr, dst_layout))
- }
- "uninit" => {
- assert_eq!(args.len(), 0);
- let ty = substs.type_at(0);
- let layout = fx.layout_of(ty);
- let stack_slot = fx.bcx.create_stack_slot(StackSlotData {
- kind: StackSlotKind::ExplicitSlot,
- size: layout.size.bytes() as u32,
- offset: None,
- });
- let uninit_place = CPlace::from_stack_slot(fx, stack_slot, ty);
- let uninit_val = uninit_place.to_cvalue(fx);
- ret.write_cvalue(fx, uninit_val);
- }
- "ctlz" | "ctlz_nonzero" => {
- assert_eq!(args.len(), 1);
- let arg = args[0].load_value(fx);
- let res = CValue::ByVal(fx.bcx.ins().clz(arg), args[0].layout());
- ret.write_cvalue(fx, res);
- }
- "cttz" | "cttz_nonzero" => {
- assert_eq!(args.len(), 1);
- let arg = args[0].load_value(fx);
- let res = CValue::ByVal(fx.bcx.ins().clz(arg), args[0].layout());
- ret.write_cvalue(fx, res);
- }
- "ctpop" => {
- assert_eq!(args.len(), 1);
- let arg = args[0].load_value(fx);
- let res = CValue::ByVal(fx.bcx.ins().popcnt(arg), args[0].layout());
- ret.write_cvalue(fx, res);
+ let nil_ty = fx.tcx.mk_nil();
+ let u64_layout = fx.layout_of(fx.tcx.types.u64);
+ let usize_layout = fx.layout_of(fx.tcx.types.usize);
+
+ match intrinsic {
+ "assume" => {
+ assert_eq!(args.len(), 1);
+ }
+ "arith_offset" => {
+ assert_eq!(args.len(), 2);
+ let base = args[0].load_value(fx);
+ let offset = args[1].load_value(fx);
+ let res = fx.bcx.ins().iadd(base, offset);
+ let res = CValue::ByVal(res, ret.layout());
+ ret.write_cvalue(fx, res);
+ }
+ "likely" | "unlikely" => {
+ assert_eq!(args.len(), 1);
+ ret.write_cvalue(fx, args[0]);
+ }
+ "copy" | "copy_nonoverlapping" => {
+ let elem_ty = substs.type_at(0);
+ let elem_size: u64 = fx.layout_of(elem_ty).size.bytes();
+ let elem_size = fx.bcx.ins().iconst(types::I64, elem_size as i64);
+ assert_eq!(args.len(), 3);
+ let src = args[0];
+ let dst = args[1];
+ let count = args[2].load_value(fx);
+ let byte_amount = fx.bcx.ins().imul(count, elem_size);
+ fx.easy_call(
+ "memmove",
+ &[dst, src, CValue::ByVal(byte_amount, usize_layout)],
+ nil_ty,
+ );
+ }
+ "discriminant_value" => {
+ assert_eq!(args.len(), 1);
+ let discr = crate::base::trans_get_discriminant(fx, args[0], ret.layout());
+ ret.write_cvalue(fx, discr);
+ }
+ "size_of" => {
+ assert_eq!(args.len(), 0);
+ let size_of = fx.layout_of(substs.type_at(0)).size.bytes();
+ let size_of = CValue::const_val(fx, usize_layout.ty, size_of as i64);
+ ret.write_cvalue(fx, size_of);
+ }
+ "type_id" => {
+ assert_eq!(args.len(), 0);
+ let type_id = fx.tcx.type_id_hash(substs.type_at(0));
+ let type_id = CValue::const_val(fx, u64_layout.ty, type_id as i64);
+ ret.write_cvalue(fx, type_id);
+ }
+ "min_align_of" => {
+ assert_eq!(args.len(), 0);
+ let min_align = fx.layout_of(substs.type_at(0)).align.abi();
+ let min_align = CValue::const_val(fx, usize_layout.ty, min_align as i64);
+ ret.write_cvalue(fx, min_align);
+ }
+ _ if intrinsic.starts_with("unchecked_") => {
+ assert_eq!(args.len(), 2);
+ let bin_op = match intrinsic {
+ "unchecked_div" => BinOp::Div,
+ "unchecked_rem" => BinOp::Rem,
+ "unchecked_shl" => BinOp::Shl,
+ "unchecked_shr" => BinOp::Shr,
+ _ => unimplemented!("intrinsic {}", intrinsic),
+ };
+ let res = match ret.layout().ty.sty {
+ TypeVariants::TyUint(_) => crate::base::trans_int_binop(
+ fx,
+ bin_op,
+ args[0],
+ args[1],
+ ret.layout().ty,
+ false,
+ ),
+ TypeVariants::TyInt(_) => crate::base::trans_int_binop(
+ fx,
+ bin_op,
+ args[0],
+ args[1],
+ ret.layout().ty,
+ true,
+ ),
+ _ => panic!(),
+ };
+ ret.write_cvalue(fx, res);
+ }
+ _ if intrinsic.ends_with("_with_overflow") => {
+ assert_eq!(args.len(), 2);
+ assert_eq!(args[0].layout().ty, args[1].layout().ty);
+ let bin_op = match intrinsic {
+ "add_with_overflow" => BinOp::Add,
+ "sub_with_overflow" => BinOp::Sub,
+ "mul_with_overflow" => BinOp::Mul,
+ _ => unimplemented!("intrinsic {}", intrinsic),
+ };
+ let res = match args[0].layout().ty.sty {
+ TypeVariants::TyUint(_) => crate::base::trans_checked_int_binop(
+ fx,
+ bin_op,
+ args[0],
+ args[1],
+ ret.layout().ty,
+ false,
+ ),
+ TypeVariants::TyInt(_) => crate::base::trans_checked_int_binop(
+ fx,
+ bin_op,
+ args[0],
+ args[1],
+ ret.layout().ty,
+ true,
+ ),
+ _ => panic!(),
+ };
+ ret.write_cvalue(fx, res);
+ }
+ _ if intrinsic.starts_with("overflowing_") => {
+ assert_eq!(args.len(), 2);
+ assert_eq!(args[0].layout().ty, args[1].layout().ty);
+ let bin_op = match intrinsic {
+ "overflowing_add" => BinOp::Add,
+ "overflowing_sub" => BinOp::Sub,
+ "overflowing_mul" => BinOp::Mul,
+ _ => unimplemented!("intrinsic {}", intrinsic),
+ };
+ let res = match args[0].layout().ty.sty {
+ TypeVariants::TyUint(_) => crate::base::trans_int_binop(
+ fx,
+ bin_op,
+ args[0],
+ args[1],
+ ret.layout().ty,
+ false,
+ ),
+ TypeVariants::TyInt(_) => crate::base::trans_int_binop(
+ fx,
+ bin_op,
+ args[0],
+ args[1],
+ ret.layout().ty,
+ true,
+ ),
+ _ => panic!(),
+ };
+ ret.write_cvalue(fx, res);
+ }
+ "offset" => {
+ assert_eq!(args.len(), 2);
+ let base = args[0].load_value(fx);
+ let offset = args[1].load_value(fx);
+ let res = fx.bcx.ins().iadd(base, offset);
+ ret.write_cvalue(fx, CValue::ByVal(res, args[0].layout()));
+ }
+ "transmute" => {
+ assert_eq!(args.len(), 1);
+ let src_ty = substs.type_at(0);
+ let dst_ty = substs.type_at(1);
+ assert_eq!(args[0].layout().ty, src_ty);
+ let addr = args[0].force_stack(fx);
+ let dst_layout = fx.layout_of(dst_ty);
+ ret.write_cvalue(fx, CValue::ByRef(addr, dst_layout))
+ }
+ "uninit" => {
+ assert_eq!(args.len(), 0);
+ let ty = substs.type_at(0);
+ let layout = fx.layout_of(ty);
+ let stack_slot = fx.bcx.create_stack_slot(StackSlotData {
+ kind: StackSlotKind::ExplicitSlot,
+ size: layout.size.bytes() as u32,
+ offset: None,
+ });
+
+ let uninit_place = CPlace::from_stack_slot(fx, stack_slot, ty);
+ let uninit_val = uninit_place.to_cvalue(fx);
+ ret.write_cvalue(fx, uninit_val);
+ }
+ "ctlz" | "ctlz_nonzero" => {
+ assert_eq!(args.len(), 1);
+ let arg = args[0].load_value(fx);
+ let res = CValue::ByVal(fx.bcx.ins().clz(arg), args[0].layout());
+ ret.write_cvalue(fx, res);
+ }
+ "cttz" | "cttz_nonzero" => {
+ assert_eq!(args.len(), 1);
+ let arg = args[0].load_value(fx);
+ let res = CValue::ByVal(fx.bcx.ins().clz(arg), args[0].layout());
+ ret.write_cvalue(fx, res);
+ }
+ "ctpop" => {
+ assert_eq!(args.len(), 1);
+ let arg = args[0].load_value(fx);
+ let res = CValue::ByVal(fx.bcx.ins().popcnt(arg), args[0].layout());
+ ret.write_cvalue(fx, res);
+ }
+ _ => unimpl!("unsupported intrinsic {}", intrinsic),
+ }
+
+ if let Some((_, dest)) = *destination {
+ let ret_ebb = fx.get_ebb(dest);
+ fx.bcx.ins().jump(ret_ebb, &[]);
+ } else {
+ fx.bcx.ins().trap(TrapCode::User(!0));
+ }
+ return true;
}
- _ => unimpl!("unsupported intrinsic {}", intrinsic),
}
+
+ false
}
projects / rust.git / commitdiff