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Rustup to rustc 1.38.0-nightly (a7f28678b 2019-07-23)

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This commit is contained in:
bjorn3 2019-07-24 11:56:24 +02:00
parent 853234006e
commit 92f2b6243d
2 changed files with 72 additions and 60 deletions
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4
src/analyze.rs
View File

@ -47,8 +47,8 @@ pub fn analyze<'a, 'tcx: 'a>(fx: &FunctionCx<'a, 'tcx, impl Backend>) -> HashMap
}
fn analyze_non_ssa_place(flag_map: &mut HashMap<Local, Flags>, place: &Place) {
match place {
Place::Base(PlaceBase::Local(local)) => not_ssa(flag_map, local),
match place.base {
PlaceBase::Local(local) => not_ssa(flag_map, local),
_ => {}
}
}

128
src/base.rs
View File

@ -1148,70 +1148,82 @@ pub fn trans_place<'a, 'tcx: 'a>(
fx: &mut FunctionCx<'a, 'tcx, impl Backend>,
place: &Place<'tcx>,
) -> CPlace<'tcx> {
match place {
Place::Base(base) => match base {
PlaceBase::Local(local) => fx.get_local_place(*local),
PlaceBase::Static(static_) => match static_.kind {
StaticKind::Static(def_id) => {
crate::constant::codegen_static_ref(fx, def_id, static_.ty)
}
StaticKind::Promoted(promoted) => {
crate::constant::trans_promoted(fx, promoted, static_.ty)
}
let base = match &place.base {
PlaceBase::Local(local) => fx.get_local_place(*local),
PlaceBase::Static(static_) => match static_.kind {
StaticKind::Static(def_id) => {
crate::constant::codegen_static_ref(fx, def_id, static_.ty)
}
StaticKind::Promoted(promoted) => {
crate::constant::trans_promoted(fx, promoted, static_.ty)
}
}
Place::Projection(projection) => {
let base = trans_place(fx, &projection.base);
match projection.elem {
ProjectionElem::Deref => base.place_deref(fx),
ProjectionElem::Field(field, _ty) => base.place_field(fx, field),
ProjectionElem::Index(local) => {
let index = fx.get_local_place(local).to_cvalue(fx).load_scalar(fx);
base.place_index(fx, index)
}
ProjectionElem::ConstantIndex {
offset,
min_length: _,
from_end,
} => {
let index = if !from_end {
fx.bcx.ins().iconst(fx.pointer_type, offset as i64)
} else {
let len = codegen_array_len(fx, base);
fx.bcx.ins().iadd_imm(len, -(offset as i64))
};
base.place_index(fx, index)
}
ProjectionElem::Subslice { from, to } => {
// These indices are generated by slice patterns.
// slice[from:-to] in Python terms.
};
match base.layout().ty.sty {
ty::Array(elem_ty, len) => {
let elem_layout = fx.layout_of(elem_ty);
let ptr = base.to_addr(fx);
let len = crate::constant::force_eval_const(fx, len).unwrap_usize(fx.tcx);
CPlace::for_addr(
fx.bcx.ins().iadd_imm(ptr, elem_layout.size.bytes() as i64 * from as i64),
fx.layout_of(fx.tcx.mk_array(elem_ty, len - from as u64 - to as u64)),
)
}
ty::Slice(elem_ty) => {
let elem_layout = fx.layout_of(elem_ty);
let (ptr, len) = base.to_addr_maybe_unsized(fx);
let len = len.unwrap();
CPlace::for_addr_with_extra(
fx.bcx.ins().iadd_imm(ptr, elem_layout.size.bytes() as i64 * from as i64),
fx.bcx.ins().iadd_imm(len, -(from as i64 + to as i64)),
base.layout(),
)
}
_ => unreachable!(),
}
trans_place_projection(fx, base, &place.projection)
}
pub fn trans_place_projection<'a, 'tcx: 'a>(
fx: &mut FunctionCx<'a, 'tcx, impl Backend>,
base: CPlace<'tcx>,
projection: &Option<Box<Projection<'tcx>>>,
) -> CPlace<'tcx> {
let projection = if let Some(projection) = projection {
projection
} else {
return base;
};
let base = trans_place_projection(fx, base, &projection.base);
match projection.elem {
ProjectionElem::Deref => base.place_deref(fx),
ProjectionElem::Field(field, _ty) => base.place_field(fx, field),
ProjectionElem::Index(local) => {
let index = fx.get_local_place(local).to_cvalue(fx).load_scalar(fx);
base.place_index(fx, index)
}
ProjectionElem::ConstantIndex {
offset,
min_length: _,
from_end,
} => {
let index = if !from_end {
fx.bcx.ins().iconst(fx.pointer_type, offset as i64)
} else {
let len = codegen_array_len(fx, base);
fx.bcx.ins().iadd_imm(len, -(offset as i64))
};
base.place_index(fx, index)
}
ProjectionElem::Subslice { from, to } => {
// These indices are generated by slice patterns.
// slice[from:-to] in Python terms.
match base.layout().ty.sty {
ty::Array(elem_ty, len) => {
let elem_layout = fx.layout_of(elem_ty);
let ptr = base.to_addr(fx);
let len = crate::constant::force_eval_const(fx, len).unwrap_usize(fx.tcx);
CPlace::for_addr(
fx.bcx.ins().iadd_imm(ptr, elem_layout.size.bytes() as i64 * from as i64),
fx.layout_of(fx.tcx.mk_array(elem_ty, len - from as u64 - to as u64)),
)
}
ProjectionElem::Downcast(_adt_def, variant) => base.downcast_variant(fx, variant),
ty::Slice(elem_ty) => {
let elem_layout = fx.layout_of(elem_ty);
let (ptr, len) = base.to_addr_maybe_unsized(fx);
let len = len.unwrap();
CPlace::for_addr_with_extra(
fx.bcx.ins().iadd_imm(ptr, elem_layout.size.bytes() as i64 * from as i64),
fx.bcx.ins().iadd_imm(len, -(from as i64 + to as i64)),
base.layout(),
)
}
_ => unreachable!(),
}
}
ProjectionElem::Downcast(_adt_def, variant) => base.downcast_variant(fx, variant),
}
}