95 lines
2.6 KiB
Rust
95 lines
2.6 KiB
Rust
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use std::borrow::Cow;
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use rustc::mir;
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use crate::prelude::*;
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use crate::abi::pass_mode::*;
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pub fn add_local_header_comment(fx: &mut FunctionCx<impl Backend>) {
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fx.add_global_comment(format!(
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"msg loc.idx param pass mode ssa flags ty"
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));
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}
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pub fn add_arg_comment<'tcx>(
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fx: &mut FunctionCx<'_, 'tcx, impl Backend>,
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msg: &str,
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local: mir::Local,
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local_field: Option<usize>,
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params: EmptySinglePair<Value>,
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pass_mode: PassMode,
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ssa: crate::analyze::Flags,
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ty: Ty<'tcx>,
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) {
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let local_field = if let Some(local_field) = local_field {
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Cow::Owned(format!(".{}", local_field))
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} else {
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Cow::Borrowed("")
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};
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let params = match params {
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Empty => Cow::Borrowed("-"),
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Single(param) => Cow::Owned(format!("= {:?}", param)),
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Pair(param_a, param_b) => Cow::Owned(format!("= {:?}, {:?}", param_a, param_b)),
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};
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let pass_mode = format!("{:?}", pass_mode);
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fx.add_global_comment(format!(
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"{msg:5}{local:>3}{local_field:<5} {params:10} {pass_mode:36} {ssa:10} {ty:?}",
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msg = msg,
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local = format!("{:?}", local),
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local_field = local_field,
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params = params,
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pass_mode = pass_mode,
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ssa = format!("{:?}", ssa),
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ty = ty,
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));
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}
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pub fn add_local_place_comments<'tcx>(
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fx: &mut FunctionCx<'_, 'tcx, impl Backend>,
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place: CPlace<'tcx>,
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local: Local,
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) {
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let TyLayout { ty, details } = place.layout();
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let ty::layout::LayoutDetails {
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size,
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align,
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abi: _,
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variants: _,
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fields: _,
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largest_niche: _,
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} = details;
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match *place.inner() {
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CPlaceInner::Var(var) => {
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assert_eq!(local, var);
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fx.add_global_comment(format!(
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"ssa {:?}: {:?} size={} align={}, {}",
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local,
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ty,
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size.bytes(),
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align.abi.bytes(),
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align.pref.bytes(),
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));
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}
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CPlaceInner::Stack(stack_slot) => fx.add_entity_comment(
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stack_slot,
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format!(
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"{:?}: {:?} size={} align={},{}",
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local,
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ty,
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size.bytes(),
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align.abi.bytes(),
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align.pref.bytes(),
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),
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),
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CPlaceInner::NoPlace => fx.add_global_comment(format!(
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"zst {:?}: {:?} size={} align={}, {}",
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local,
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ty,
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size.bytes(),
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align.abi.bytes(),
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align.pref.bytes(),
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)),
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CPlaceInner::Addr(_, _) => unreachable!(),
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}
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}
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