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Rustup to rustc 1.44.0-nightly (45d050cde 2020-04-21)

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Remove the `<Box<F> as FnOnce>::call_once` hack now that rust-lang/rust#71170 is merged.
This commit is contained in:
bjorn3 2020-04-22 17:54:21 +02:00
parent 5a6d9e1f1b
commit 27a46ff765
2 changed files with 1 additions and 82 deletions
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2
rust-toolchain
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@ -1 +1 @@
nightly-2020-04-17
nightly-2020-04-22

81
src/base.rs
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@ -58,92 +58,11 @@ pub(crate) fn trans_fn<'clif, 'tcx, B: Backend + 'static>(
};
let arg_uninhabited = fx.mir.args_iter().any(|arg| fx.layout_of(fx.monomorphize(&fx.mir.local_decls[arg].ty)).abi.is_uninhabited());
let is_call_once_for_box = name.starts_with("_ZN83_$LT$alloc..boxed..Box$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$A$GT$$GT$9call_once");
if arg_uninhabited {
fx.bcx.append_block_params_for_function_params(fx.block_map[START_BLOCK]);
fx.bcx.switch_to_block(fx.block_map[START_BLOCK]);
crate::trap::trap_unreachable(&mut fx, "function has uninhabited argument");
} else if is_call_once_for_box {
// HACK implement `<Box<F> as FnOnce>::call_once` without `alloca`.
tcx.sess.time("codegen prelude", || crate::abi::codegen_fn_prelude(&mut fx, start_block, false));
fx.bcx.switch_to_block(fx.block_map[START_BLOCK]);
let bb_data = &fx.mir.basic_blocks()[START_BLOCK];
let destination = match &bb_data.terminator().kind {
TerminatorKind::Call {
func,
args,
destination,
cleanup: _,
from_hir_call: _,
} => {
assert_eq!(args.len(), 2);
let closure_arg = Local::new(1);
let closure_local = args[0].place().unwrap().as_local().unwrap();
assert_eq!(fx.mir.local_decls[closure_local].ty, fx.mir.local_decls[closure_arg].ty.builtin_deref(true).unwrap().ty);
let closure_deref = fx.local_map[&closure_arg].place_deref(&mut fx);
fx.local_map.insert(closure_local, closure_deref);
let args_arg = Local::new(2);
let args_local = args[1].place().unwrap().as_local().unwrap();
assert_eq!(fx.mir.local_decls[args_local].ty, fx.mir.local_decls[args_arg].ty);
fx.local_map.insert(args_local, fx.local_map[&args_arg]);
fx.tcx.sess.time("codegen call", || crate::abi::codegen_terminator_call(
&mut fx,
bb_data.terminator().source_info.span,
func,
args,
*destination,
));
destination.map(|(_ret_place, ret_block)| ret_block)
}
_ => unreachable!(),
};
let destination = if let Some(destination) = destination {
fx.bcx.switch_to_block(fx.block_map[destination]);
let bb_data = &fx.mir.basic_blocks()[destination];
match &bb_data.terminator().kind {
TerminatorKind::Call {
func,
args,
destination,
cleanup: _,
from_hir_call: _,
} => {
match destination {
Some((ret_place, _ret_block)) => {
fx.local_map.insert(ret_place.as_local().unwrap(), CPlace::no_place(fx.layout_of(fx.tcx.mk_unit())));
}
None => {}
}
assert_eq!(args.len(), 1);
fx.tcx.sess.time("codegen call", || crate::abi::codegen_terminator_call(
&mut fx,
bb_data.terminator().source_info.span,
func,
args,
*destination,
));
destination.map(|(_ret_place, ret_block)| ret_block)
}
_ => unreachable!(),
}
} else {
None
};
if let Some(destination) = destination {
fx.bcx.switch_to_block(fx.block_map[destination]);
let bb_data = &fx.mir.basic_blocks()[destination];
match &bb_data.terminator().kind {
TerminatorKind::Return => crate::abi::codegen_return(&mut fx),
_ => unreachable!(),
}
}
} else {
tcx.sess.time("codegen clif ir", || {
tcx.sess.time("codegen prelude", || crate::abi::codegen_fn_prelude(&mut fx, start_block, true));