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update cg_clif

This commit is contained in:
Bastian Kauschke 2020-10-28 08:25:06 +01:00
parent a6cbd64dae
commit 7f45668af6
9 changed files with 45 additions and 46 deletions

View file

@ -445,43 +445,43 @@ fn codegen_stmt<'tcx>(
StatementKind::Assign(to_place_and_rval) => {
let lval = codegen_place(fx, to_place_and_rval.0);
let dest_layout = lval.layout();
match &to_place_and_rval.1 {
Rvalue::Use(operand) => {
match to_place_and_rval.1 {
Rvalue::Use(ref operand) => {
let val = codegen_operand(fx, operand);
lval.write_cvalue(fx, val);
}
Rvalue::Ref(_, _, place) | Rvalue::AddressOf(_, place) => {
let place = codegen_place(fx, *place);
let place = codegen_place(fx, place);
let ref_ = place.place_ref(fx, lval.layout());
lval.write_cvalue(fx, ref_);
}
Rvalue::ThreadLocalRef(def_id) => {
let val = crate::constant::codegen_tls_ref(fx, *def_id, lval.layout());
let val = crate::constant::codegen_tls_ref(fx, def_id, lval.layout());
lval.write_cvalue(fx, val);
}
Rvalue::BinaryOp(bin_op, lhs, rhs) => {
Rvalue::BinaryOp(bin_op, ref lhs, ref rhs) => {
let lhs = codegen_operand(fx, lhs);
let rhs = codegen_operand(fx, rhs);
let res = crate::num::codegen_binop(fx, *bin_op, lhs, rhs);
let res = crate::num::codegen_binop(fx, bin_op, lhs, rhs);
lval.write_cvalue(fx, res);
}
Rvalue::CheckedBinaryOp(bin_op, lhs, rhs) => {
Rvalue::CheckedBinaryOp(bin_op, ref lhs, ref rhs) => {
let lhs = codegen_operand(fx, lhs);
let rhs = codegen_operand(fx, rhs);
let res = if !fx.tcx.sess.overflow_checks() {
let val =
crate::num::codegen_int_binop(fx, *bin_op, lhs, rhs).load_scalar(fx);
crate::num::codegen_int_binop(fx, bin_op, lhs, rhs).load_scalar(fx);
let is_overflow = fx.bcx.ins().iconst(types::I8, 0);
CValue::by_val_pair(val, is_overflow, lval.layout())
} else {
crate::num::codegen_checked_int_binop(fx, *bin_op, lhs, rhs)
crate::num::codegen_checked_int_binop(fx, bin_op, lhs, rhs)
};
lval.write_cvalue(fx, res);
}
Rvalue::UnaryOp(un_op, operand) => {
Rvalue::UnaryOp(un_op, ref operand) => {
let operand = codegen_operand(fx, operand);
let layout = operand.layout();
let val = operand.load_scalar(fx);
@ -509,8 +509,8 @@ fn codegen_stmt<'tcx>(
};
lval.write_cvalue(fx, res);
}
Rvalue::Cast(CastKind::Pointer(PointerCast::ReifyFnPointer), operand, to_ty) => {
let from_ty = fx.monomorphize(&operand.ty(&fx.mir.local_decls, fx.tcx));
Rvalue::Cast(CastKind::Pointer(PointerCast::ReifyFnPointer), ref operand, to_ty) => {
let from_ty = fx.monomorphize(operand.ty(&fx.mir.local_decls, fx.tcx));
let to_layout = fx.layout_of(fx.monomorphize(to_ty));
match *from_ty.kind() {
ty::FnDef(def_id, substs) => {
@ -530,14 +530,14 @@ fn codegen_stmt<'tcx>(
_ => bug!("Trying to ReifyFnPointer on non FnDef {:?}", from_ty),
}
}
Rvalue::Cast(CastKind::Pointer(PointerCast::UnsafeFnPointer), operand, to_ty)
| Rvalue::Cast(CastKind::Pointer(PointerCast::MutToConstPointer), operand, to_ty)
| Rvalue::Cast(CastKind::Pointer(PointerCast::ArrayToPointer), operand, to_ty) => {
Rvalue::Cast(CastKind::Pointer(PointerCast::UnsafeFnPointer), ref operand, to_ty)
| Rvalue::Cast(CastKind::Pointer(PointerCast::MutToConstPointer), ref operand, to_ty)
| Rvalue::Cast(CastKind::Pointer(PointerCast::ArrayToPointer), ref operand, to_ty) => {
let to_layout = fx.layout_of(fx.monomorphize(to_ty));
let operand = codegen_operand(fx, operand);
lval.write_cvalue(fx, operand.cast_pointer_to(to_layout));
}
Rvalue::Cast(CastKind::Misc, operand, to_ty) => {
Rvalue::Cast(CastKind::Misc, ref operand, to_ty) => {
let operand = codegen_operand(fx, operand);
let from_ty = operand.layout().ty;
let to_ty = fx.monomorphize(to_ty);
@ -577,12 +577,12 @@ fn codegen_stmt<'tcx>(
use rustc_target::abi::{Int, TagEncoding, Variants};
match &operand.layout().variants {
match operand.layout().variants {
Variants::Single { index } => {
let discr = operand
.layout()
.ty
.discriminant_for_variant(fx.tcx, *index)
.discriminant_for_variant(fx.tcx, index)
.unwrap();
let discr = if discr.ty.is_signed() {
fx.layout_of(discr.ty).size.sign_extend(discr.val)
@ -595,7 +595,7 @@ fn codegen_stmt<'tcx>(
lval.write_cvalue(fx, discr);
}
Variants::Multiple {
tag,
ref tag,
tag_field,
tag_encoding: TagEncoding::Direct,
variants: _,
@ -604,7 +604,7 @@ fn codegen_stmt<'tcx>(
// Read the tag/niche-encoded discriminant from memory.
let encoded_discr =
operand.value_field(fx, mir::Field::new(*tag_field));
operand.value_field(fx, mir::Field::new(tag_field));
let encoded_discr = encoded_discr.load_scalar(fx);
// Decode the discriminant (specifically if it's niche-encoded).
@ -634,7 +634,7 @@ fn codegen_stmt<'tcx>(
}
Rvalue::Cast(
CastKind::Pointer(PointerCast::ClosureFnPointer(_)),
operand,
ref operand,
_to_ty,
) => {
let operand = codegen_operand(fx, operand);
@ -654,18 +654,18 @@ fn codegen_stmt<'tcx>(
_ => bug!("{} cannot be cast to a fn ptr", operand.layout().ty),
}
}
Rvalue::Cast(CastKind::Pointer(PointerCast::Unsize), operand, _to_ty) => {
Rvalue::Cast(CastKind::Pointer(PointerCast::Unsize), ref operand, _to_ty) => {
let operand = codegen_operand(fx, operand);
operand.unsize_value(fx, lval);
}
Rvalue::Discriminant(place) => {
let place = codegen_place(fx, *place);
let place = codegen_place(fx, place);
let value = place.to_cvalue(fx);
let discr =
crate::discriminant::codegen_get_discriminant(fx, value, dest_layout);
lval.write_cvalue(fx, discr);
}
Rvalue::Repeat(operand, times) => {
Rvalue::Repeat(ref operand, times) => {
let operand = codegen_operand(fx, operand);
let times = fx
.monomorphize(times)
@ -704,7 +704,7 @@ fn codegen_stmt<'tcx>(
}
}
Rvalue::Len(place) => {
let place = codegen_place(fx, *place);
let place = codegen_place(fx, place);
let usize_layout = fx.layout_of(fx.tcx.types.usize);
let len = codegen_array_len(fx, place);
lval.write_cvalue(fx, CValue::by_val(len, usize_layout));
@ -749,7 +749,7 @@ fn codegen_stmt<'tcx>(
CValue::const_val(fx, fx.layout_of(fx.tcx.types.usize), ty_size.into());
lval.write_cvalue(fx, val);
}
Rvalue::Aggregate(kind, operands) => match **kind {
Rvalue::Aggregate(ref kind, ref operands) => match kind.as_ref() {
AggregateKind::Array(_ty) => {
for (i, operand) in operands.iter().enumerate() {
let operand = codegen_operand(fx, operand);
@ -877,8 +877,7 @@ fn codegen_array_len<'tcx>(
match *place.layout().ty.kind() {
ty::Array(_elem_ty, len) => {
let len = fx
.monomorphize(&len)
.eval(fx.tcx, ParamEnv::reveal_all())
.monomorphize(len)
.eval_usize(fx.tcx, ParamEnv::reveal_all()) as i64;
fx.bcx.ins().iconst(fx.pointer_type, len)
}