Rollup merge of #111501 - WaffleLapkin:drivebycleanupuwu, r=oli-obk
MIR drive-by cleanups Some random drive-by cleanups I did while working with MIR/THIR.
This commit is contained in:
Dylan DPC
GitHub
commit
df86200965
21 changed files with 124 additions and 179 deletions
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@ -749,6 +749,29 @@ pub enum TerminatorKind<'tcx> {
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},
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}
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impl TerminatorKind<'_> {
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/// Returns a simple string representation of a `TerminatorKind` variant, independent of any
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/// values it might hold (e.g. `TerminatorKind::Call` always returns `"Call"`).
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pub const fn name(&self) -> &'static str {
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match self {
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TerminatorKind::Goto { .. } => "Goto",
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TerminatorKind::SwitchInt { .. } => "SwitchInt",
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TerminatorKind::Resume => "Resume",
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TerminatorKind::Terminate => "Terminate",
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TerminatorKind::Return => "Return",
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TerminatorKind::Unreachable => "Unreachable",
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TerminatorKind::Drop { .. } => "Drop",
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TerminatorKind::Call { .. } => "Call",
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TerminatorKind::Assert { .. } => "Assert",
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TerminatorKind::Yield { .. } => "Yield",
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TerminatorKind::GeneratorDrop => "GeneratorDrop",
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TerminatorKind::FalseEdge { .. } => "FalseEdge",
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TerminatorKind::FalseUnwind { .. } => "FalseUnwind",
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TerminatorKind::InlineAsm { .. } => "InlineAsm",
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}
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}
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}
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/// Action to be taken when a stack unwind happens.
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#[derive(Copy, Clone, Debug, PartialEq, Eq, TyEncodable, TyDecodable, Hash, HashStable)]
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#[derive(TypeFoldable, TypeVisitable)]
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@ -644,24 +644,27 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
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}
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};
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if let Some(destination) = destination {
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if let Some(value) = value {
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match (destination, value) {
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(Some(destination), Some(value)) => {
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debug!("stmt_expr Break val block_context.push(SubExpr)");
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self.block_context.push(BlockFrame::SubExpr);
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unpack!(block = self.expr_into_dest(destination, block, value));
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self.block_context.pop();
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} else {
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}
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(Some(destination), None) => {
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self.cfg.push_assign_unit(block, source_info, destination, self.tcx)
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}
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} else {
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assert!(value.is_none(), "`return` and `break` should have a destination");
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if self.tcx.sess.instrument_coverage() {
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(None, Some(_)) => {
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panic!("`return`, `become` and `break` with value and must have a destination")
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}
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(None, None) if self.tcx.sess.instrument_coverage() => {
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// Unlike `break` and `return`, which push an `Assign` statement to MIR, from which
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// a Coverage code region can be generated, `continue` needs no `Assign`; but
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// without one, the `InstrumentCoverage` MIR pass cannot generate a code region for
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// `continue`. Coverage will be missing unless we add a dummy `Assign` to MIR.
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self.add_dummy_assignment(span, block, source_info);
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}
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(None, None) => {}
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}
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let region_scope = self.scopes.breakable_scopes[break_index].region_scope;
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@ -671,12 +674,12 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
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} else {
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self.scopes.breakable_scopes[break_index].continue_drops.as_mut().unwrap()
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};
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let mut drop_idx = ROOT_NODE;
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for scope in &self.scopes.scopes[scope_index + 1..] {
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for drop in &scope.drops {
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drop_idx = drops.add_drop(*drop, drop_idx);
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}
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}
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let drop_idx = self.scopes.scopes[scope_index + 1..]
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.iter()
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.flat_map(|scope| &scope.drops)
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.fold(ROOT_NODE, |drop_idx, &drop| drops.add_drop(drop, drop_idx));
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drops.add_entry(block, drop_idx);
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// `build_drop_trees` doesn't have access to our source_info, so we
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@ -130,6 +130,7 @@ impl<'tcx> Cx<'tcx> {
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ExprKind::Pointer { cast: PointerCast::Unsize, source: self.thir.exprs.push(expr) }
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}
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Adjust::Pointer(cast) => ExprKind::Pointer { cast, source: self.thir.exprs.push(expr) },
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Adjust::NeverToAny if adjustment.target.is_never() => return expr,
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Adjust::NeverToAny => ExprKind::NeverToAny { source: self.thir.exprs.push(expr) },
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Adjust::Deref(None) => {
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adjust_span(&mut expr);
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@ -118,7 +118,7 @@ use rustc_middle::mir::spanview::{self, SpanViewable};
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use rustc_data_structures::fx::FxHashMap;
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use rustc_middle::mir::coverage::*;
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use rustc_middle::mir::{self, BasicBlock, TerminatorKind};
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use rustc_middle::mir::{self, BasicBlock};
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use rustc_middle::ty::TyCtxt;
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use rustc_span::Span;
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@ -796,7 +796,7 @@ fn bcb_to_string_sections<'tcx>(
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}
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let non_term_blocks = bcb_data.basic_blocks[0..len - 1]
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.iter()
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.map(|&bb| format!("{:?}: {}", bb, term_type(&mir_body[bb].terminator().kind)))
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.map(|&bb| format!("{:?}: {}", bb, mir_body[bb].terminator().kind.name()))
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.collect::<Vec<_>>();
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if non_term_blocks.len() > 0 {
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sections.push(non_term_blocks.join("\n"));
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@ -804,28 +804,7 @@ fn bcb_to_string_sections<'tcx>(
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sections.push(format!(
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"{:?}: {}",
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bcb_data.basic_blocks.last().unwrap(),
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term_type(&bcb_data.terminator(mir_body).kind)
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bcb_data.terminator(mir_body).kind.name(),
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));
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sections
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}
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/// Returns a simple string representation of a `TerminatorKind` variant, independent of any
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/// values it might hold.
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pub(super) fn term_type(kind: &TerminatorKind<'_>) -> &'static str {
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match kind {
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TerminatorKind::Goto { .. } => "Goto",
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TerminatorKind::SwitchInt { .. } => "SwitchInt",
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TerminatorKind::Resume => "Resume",
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TerminatorKind::Terminate => "Terminate",
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TerminatorKind::Return => "Return",
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TerminatorKind::Unreachable => "Unreachable",
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TerminatorKind::Drop { .. } => "Drop",
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TerminatorKind::Call { .. } => "Call",
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TerminatorKind::Assert { .. } => "Assert",
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TerminatorKind::Yield { .. } => "Yield",
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TerminatorKind::GeneratorDrop => "GeneratorDrop",
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TerminatorKind::FalseEdge { .. } => "FalseEdge",
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TerminatorKind::FalseUnwind { .. } => "FalseUnwind",
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TerminatorKind::InlineAsm { .. } => "InlineAsm",
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}
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}
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@ -1,4 +1,3 @@
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use super::debug::term_type;
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use super::graph::{BasicCoverageBlock, BasicCoverageBlockData, CoverageGraph, START_BCB};
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use itertools::Itertools;
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@ -40,7 +39,7 @@ impl CoverageStatement {
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"{}: @{}.{}: {:?}",
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source_range_no_file(tcx, span),
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bb.index(),
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term_type(&term.kind),
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term.kind.name(),
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term.kind
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)
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}
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@ -25,7 +25,6 @@
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//! to: `rustc_span::create_default_session_globals_then(|| { test_here(); })`.
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use super::counters;
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use super::debug;
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use super::graph;
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use super::spans;
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@ -188,12 +187,12 @@ fn debug_basic_blocks(mir_body: &Body<'_>) -> String {
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| TerminatorKind::Goto { target }
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| TerminatorKind::InlineAsm { destination: Some(target), .. }
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| TerminatorKind::Yield { resume: target, .. } => {
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format!("{}{:?}:{} -> {:?}", sp, bb, debug::term_type(kind), target)
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format!("{}{:?}:{} -> {:?}", sp, bb, kind.name(), target)
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}
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TerminatorKind::SwitchInt { targets, .. } => {
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format!("{}{:?}:{} -> {:?}", sp, bb, debug::term_type(kind), targets)
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format!("{}{:?}:{} -> {:?}", sp, bb, kind.name(), targets)
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}
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_ => format!("{}{:?}:{}", sp, bb, debug::term_type(kind)),
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_ => format!("{}{:?}:{}", sp, bb, kind.name()),
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}
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})
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.collect::<Vec<_>>()
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@ -215,7 +214,7 @@ fn print_mir_graphviz(name: &str, mir_body: &Body<'_>) {
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" {:?} [label=\"{:?}: {}\"];\n{}",
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bb,
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bb,
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debug::term_type(&data.terminator().kind),
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data.terminator().kind.name(),
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mir_body
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.basic_blocks
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.successors(bb)
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@ -244,7 +243,7 @@ fn print_coverage_graphviz(
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" {:?} [label=\"{:?}: {}\"];\n{}",
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bcb,
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bcb,
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debug::term_type(&bcb_data.terminator(mir_body).kind),
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bcb_data.terminator(mir_body).kind.name(),
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basic_coverage_blocks
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.successors(bcb)
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.map(|successor| { format!(" {:?} -> {:?};", bcb, successor) })
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@ -6,10 +6,8 @@
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fn main() {
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let y = &5;
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let x: ! = unsafe {
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*(y as *const _ as *const !) //~ ERROR: entering unreachable code
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};
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f(x)
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let x: ! = unsafe { *(y as *const _ as *const !) };
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f(x) //~ ERROR: entering unreachable code
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}
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fn f(x: !) -> ! {
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@ -1,8 +1,8 @@
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error: Undefined Behavior: entering unreachable code
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--> $DIR/never_say_never.rs:LL:CC
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LL | *(y as *const _ as *const !)
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ entering unreachable code
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LL | f(x)
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| ^^^^ entering unreachable code
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= help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
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= help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
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@ -3,24 +3,20 @@
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fn unreachable_box() -> ! {
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let mut _0: !; // return place in scope 0 at $DIR/transmute.rs:+0:36: +0:37
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let mut _1: !; // in scope 0 at $DIR/transmute.rs:+0:38: +3:2
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let _2: std::boxed::Box<Never>; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
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let mut _3: !; // in scope 0 at $DIR/transmute.rs:+2:5: +2:16
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let _1: std::boxed::Box<Never>; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
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scope 1 {
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debug x => _2; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
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debug x => _1; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
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}
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scope 2 {
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}
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/transmute.rs:+0:38: +3:2
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StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
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- _2 = const 1_usize as std::boxed::Box<Never> (Transmute); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
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+ _2 = const Box::<Never>(Unique::<Never> {{ pointer: NonNull::<Never> {{ pointer: {0x1 as *const Never} }}, _marker: PhantomData::<Never> }}, std::alloc::Global); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
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StorageLive(_1); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
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- _1 = const 1_usize as std::boxed::Box<Never> (Transmute); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
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+ _1 = const Box::<Never>(Unique::<Never> {{ pointer: NonNull::<Never> {{ pointer: {0x1 as *const Never} }}, _marker: PhantomData::<Never> }}, std::alloc::Global); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
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+ // mir::Constant
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+ // + span: no-location
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+ // + literal: Const { ty: Box<Never>, val: Value(Scalar(0x00000001)) }
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StorageLive(_3); // scope 1 at $DIR/transmute.rs:+2:5: +2:16
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unreachable; // scope 1 at $DIR/transmute.rs:+2:11: +2:13
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}
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}
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@ -3,24 +3,20 @@
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fn unreachable_box() -> ! {
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let mut _0: !; // return place in scope 0 at $DIR/transmute.rs:+0:36: +0:37
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let mut _1: !; // in scope 0 at $DIR/transmute.rs:+0:38: +3:2
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let _2: std::boxed::Box<Never>; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
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let mut _3: !; // in scope 0 at $DIR/transmute.rs:+2:5: +2:16
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let _1: std::boxed::Box<Never>; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
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scope 1 {
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debug x => _2; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
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debug x => _1; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
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}
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scope 2 {
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}
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/transmute.rs:+0:38: +3:2
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StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
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- _2 = const 1_usize as std::boxed::Box<Never> (Transmute); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
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+ _2 = const Box::<Never>(Unique::<Never> {{ pointer: NonNull::<Never> {{ pointer: {0x1 as *const Never} }}, _marker: PhantomData::<Never> }}, std::alloc::Global); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
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StorageLive(_1); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
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- _1 = const 1_usize as std::boxed::Box<Never> (Transmute); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
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+ _1 = const Box::<Never>(Unique::<Never> {{ pointer: NonNull::<Never> {{ pointer: {0x1 as *const Never} }}, _marker: PhantomData::<Never> }}, std::alloc::Global); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
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+ // mir::Constant
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+ // + span: no-location
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+ // + literal: Const { ty: Box<Never>, val: Value(Scalar(0x0000000000000001)) }
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StorageLive(_3); // scope 1 at $DIR/transmute.rs:+2:5: +2:16
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unreachable; // scope 1 at $DIR/transmute.rs:+2:11: +2:13
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}
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}
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@ -3,22 +3,19 @@
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fn unreachable_direct() -> ! {
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let mut _0: !; // return place in scope 0 at $DIR/transmute.rs:+0:39: +0:40
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let mut _1: !; // in scope 0 at $DIR/transmute.rs:+0:41: +3:2
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let _2: Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
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let mut _3: (); // in scope 0 at $DIR/transmute.rs:+1:39: +1:41
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let mut _4: !; // in scope 0 at $DIR/transmute.rs:+2:5: +2:15
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let _1: Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
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let mut _2: (); // in scope 0 at $DIR/transmute.rs:+1:39: +1:41
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scope 1 {
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debug x => _2; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
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debug x => _1; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
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}
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scope 2 {
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}
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/transmute.rs:+0:41: +3:2
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StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
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StorageLive(_3); // scope 2 at $DIR/transmute.rs:+1:39: +1:41
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_3 = (); // scope 2 at $DIR/transmute.rs:+1:39: +1:41
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_2 = move _3 as Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:29: +1:42
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StorageLive(_1); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
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StorageLive(_2); // scope 2 at $DIR/transmute.rs:+1:39: +1:41
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_2 = (); // scope 2 at $DIR/transmute.rs:+1:39: +1:41
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_1 = move _2 as Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:29: +1:42
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unreachable; // scope 2 at $DIR/transmute.rs:+1:29: +1:42
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}
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}
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@ -3,22 +3,19 @@
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fn unreachable_direct() -> ! {
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let mut _0: !; // return place in scope 0 at $DIR/transmute.rs:+0:39: +0:40
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let mut _1: !; // in scope 0 at $DIR/transmute.rs:+0:41: +3:2
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let _2: Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
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let mut _3: (); // in scope 0 at $DIR/transmute.rs:+1:39: +1:41
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let mut _4: !; // in scope 0 at $DIR/transmute.rs:+2:5: +2:15
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let _1: Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
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let mut _2: (); // in scope 0 at $DIR/transmute.rs:+1:39: +1:41
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scope 1 {
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debug x => _2; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
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debug x => _1; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
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}
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scope 2 {
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}
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/transmute.rs:+0:41: +3:2
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StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
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StorageLive(_3); // scope 2 at $DIR/transmute.rs:+1:39: +1:41
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_3 = (); // scope 2 at $DIR/transmute.rs:+1:39: +1:41
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_2 = move _3 as Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:29: +1:42
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
StorageLive(_2); // scope 2 at $DIR/transmute.rs:+1:39: +1:41
|
||||
_2 = (); // scope 2 at $DIR/transmute.rs:+1:39: +1:41
|
||||
_1 = move _2 as Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:29: +1:42
|
||||
unreachable; // scope 2 at $DIR/transmute.rs:+1:29: +1:42
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,28 +3,24 @@
|
|||
|
||||
fn unreachable_mut() -> ! {
|
||||
let mut _0: !; // return place in scope 0 at $DIR/transmute.rs:+0:36: +0:37
|
||||
let mut _1: !; // in scope 0 at $DIR/transmute.rs:+0:38: +3:2
|
||||
let _2: &mut Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
let mut _3: &mut Never; // in scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
let mut _4: !; // in scope 0 at $DIR/transmute.rs:+2:5: +2:16
|
||||
let _1: &mut Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
let mut _2: &mut Never; // in scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
scope 1 {
|
||||
debug x => _2; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
|
||||
debug x => _1; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
|
||||
}
|
||||
scope 2 {
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+0:38: +3:2
|
||||
StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
StorageLive(_3); // scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
- _3 = const 1_usize as &mut Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
|
||||
+ _3 = const {0x1 as &mut Never}; // scope 2 at $DIR/transmute.rs:+1:34: +1:52
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
- _2 = const 1_usize as &mut Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
|
||||
+ _2 = const {0x1 as &mut Never}; // scope 2 at $DIR/transmute.rs:+1:34: +1:52
|
||||
+ // mir::Constant
|
||||
+ // + span: no-location
|
||||
+ // + literal: Const { ty: &mut Never, val: Value(Scalar(0x00000001)) }
|
||||
_2 = &mut (*_3); // scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
StorageDead(_3); // scope 0 at $DIR/transmute.rs:+1:54: +1:55
|
||||
StorageLive(_4); // scope 1 at $DIR/transmute.rs:+2:5: +2:16
|
||||
_1 = &mut (*_2); // scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
StorageDead(_2); // scope 0 at $DIR/transmute.rs:+1:54: +1:55
|
||||
unreachable; // scope 1 at $DIR/transmute.rs:+2:11: +2:13
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,28 +3,24 @@
|
|||
|
||||
fn unreachable_mut() -> ! {
|
||||
let mut _0: !; // return place in scope 0 at $DIR/transmute.rs:+0:36: +0:37
|
||||
let mut _1: !; // in scope 0 at $DIR/transmute.rs:+0:38: +3:2
|
||||
let _2: &mut Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
let mut _3: &mut Never; // in scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
let mut _4: !; // in scope 0 at $DIR/transmute.rs:+2:5: +2:16
|
||||
let _1: &mut Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
let mut _2: &mut Never; // in scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
scope 1 {
|
||||
debug x => _2; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
|
||||
debug x => _1; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
|
||||
}
|
||||
scope 2 {
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+0:38: +3:2
|
||||
StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
StorageLive(_3); // scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
- _3 = const 1_usize as &mut Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
|
||||
+ _3 = const {0x1 as &mut Never}; // scope 2 at $DIR/transmute.rs:+1:34: +1:52
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
- _2 = const 1_usize as &mut Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:34: +1:52
|
||||
+ _2 = const {0x1 as &mut Never}; // scope 2 at $DIR/transmute.rs:+1:34: +1:52
|
||||
+ // mir::Constant
|
||||
+ // + span: no-location
|
||||
+ // + literal: Const { ty: &mut Never, val: Value(Scalar(0x0000000000000001)) }
|
||||
_2 = &mut (*_3); // scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
StorageDead(_3); // scope 0 at $DIR/transmute.rs:+1:54: +1:55
|
||||
StorageLive(_4); // scope 1 at $DIR/transmute.rs:+2:5: +2:16
|
||||
_1 = &mut (*_2); // scope 0 at $DIR/transmute.rs:+1:34: +1:52
|
||||
StorageDead(_2); // scope 0 at $DIR/transmute.rs:+1:54: +1:55
|
||||
unreachable; // scope 1 at $DIR/transmute.rs:+2:11: +2:13
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,24 +3,20 @@
|
|||
|
||||
fn unreachable_ref() -> ! {
|
||||
let mut _0: !; // return place in scope 0 at $DIR/transmute.rs:+0:36: +0:37
|
||||
let mut _1: !; // in scope 0 at $DIR/transmute.rs:+0:38: +3:2
|
||||
let _2: &Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
let mut _3: !; // in scope 0 at $DIR/transmute.rs:+2:5: +2:16
|
||||
let _1: &Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
scope 1 {
|
||||
debug x => _2; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
|
||||
debug x => _1; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
|
||||
}
|
||||
scope 2 {
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+0:38: +3:2
|
||||
StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
- _2 = const 1_usize as &Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:30: +1:48
|
||||
+ _2 = const {0x1 as &Never}; // scope 2 at $DIR/transmute.rs:+1:30: +1:48
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
- _1 = const 1_usize as &Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:30: +1:48
|
||||
+ _1 = const {0x1 as &Never}; // scope 2 at $DIR/transmute.rs:+1:30: +1:48
|
||||
+ // mir::Constant
|
||||
+ // + span: no-location
|
||||
+ // + literal: Const { ty: &Never, val: Value(Scalar(0x00000001)) }
|
||||
StorageLive(_3); // scope 1 at $DIR/transmute.rs:+2:5: +2:16
|
||||
unreachable; // scope 1 at $DIR/transmute.rs:+2:11: +2:13
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,24 +3,20 @@
|
|||
|
||||
fn unreachable_ref() -> ! {
|
||||
let mut _0: !; // return place in scope 0 at $DIR/transmute.rs:+0:36: +0:37
|
||||
let mut _1: !; // in scope 0 at $DIR/transmute.rs:+0:38: +3:2
|
||||
let _2: &Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
let mut _3: !; // in scope 0 at $DIR/transmute.rs:+2:5: +2:16
|
||||
let _1: &Never; // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
scope 1 {
|
||||
debug x => _2; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
|
||||
debug x => _1; // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
|
||||
}
|
||||
scope 2 {
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+0:38: +3:2
|
||||
StorageLive(_2); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
- _2 = const 1_usize as &Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:30: +1:48
|
||||
+ _2 = const {0x1 as &Never}; // scope 2 at $DIR/transmute.rs:+1:30: +1:48
|
||||
StorageLive(_1); // scope 0 at $DIR/transmute.rs:+1:9: +1:10
|
||||
- _1 = const 1_usize as &Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:30: +1:48
|
||||
+ _1 = const {0x1 as &Never}; // scope 2 at $DIR/transmute.rs:+1:30: +1:48
|
||||
+ // mir::Constant
|
||||
+ // + span: no-location
|
||||
+ // + literal: Const { ty: &Never, val: Value(Scalar(0x0000000000000001)) }
|
||||
StorageLive(_3); // scope 1 at $DIR/transmute.rs:+2:5: +2:16
|
||||
unreachable; // scope 1 at $DIR/transmute.rs:+2:11: +2:13
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,27 +3,13 @@
|
|||
fn f(_1: Void) -> ! {
|
||||
debug v => _1; // in scope 0 at $DIR/issue_72181_1.rs:+0:6: +0:7
|
||||
let mut _0: !; // return place in scope 0 at $DIR/issue_72181_1.rs:+0:18: +0:19
|
||||
let mut _2: !; // in scope 0 at $DIR/issue_72181_1.rs:+0:20: +2:2
|
||||
let mut _3: !; // in scope 0 at $DIR/issue_72181_1.rs:+1:5: +1:15
|
||||
|
||||
bb0: {
|
||||
StorageLive(_2); // scope 0 at $DIR/issue_72181_1.rs:+0:20: +2:2
|
||||
StorageLive(_3); // scope 0 at $DIR/issue_72181_1.rs:+1:5: +1:15
|
||||
FakeRead(ForMatchedPlace(None), _1); // scope 0 at $DIR/issue_72181_1.rs:+1:11: +1:12
|
||||
unreachable; // scope 0 at $DIR/issue_72181_1.rs:+1:11: +1:12
|
||||
}
|
||||
|
||||
bb1: {
|
||||
unreachable; // scope 0 at $DIR/issue_72181_1.rs:+1:5: +1:15
|
||||
}
|
||||
|
||||
bb2: {
|
||||
StorageDead(_3); // scope 0 at $DIR/issue_72181_1.rs:+1:14: +1:15
|
||||
unreachable; // scope 0 at $DIR/issue_72181_1.rs:+0:20: +2:2
|
||||
}
|
||||
|
||||
bb3: {
|
||||
StorageDead(_2); // scope 0 at $DIR/issue_72181_1.rs:+2:1: +2:2
|
||||
return; // scope 0 at $DIR/issue_72181_1.rs:+2:2: +2:2
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,26 +3,22 @@
|
|||
|
||||
fn transmute_to_box_uninhabited() -> ! {
|
||||
let mut _0: !; // return place in scope 0 at $DIR/lower_intrinsics.rs:+0:49: +0:50
|
||||
let mut _1: !; // in scope 0 at $DIR/lower_intrinsics.rs:+0:51: +3:2
|
||||
let _2: std::boxed::Box<Never>; // in scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
let mut _3: !; // in scope 0 at $DIR/lower_intrinsics.rs:+2:5: +2:16
|
||||
let _1: std::boxed::Box<Never>; // in scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
scope 1 {
|
||||
debug x => _2; // in scope 1 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
debug x => _1; // in scope 1 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+0:51: +3:2
|
||||
StorageLive(_2); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
- _2 = transmute::<usize, Box<Never>>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
- _1 = transmute::<usize, Box<Never>>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
- // mir::Constant
|
||||
- // + span: $DIR/lower_intrinsics.rs:70:25: 70:44
|
||||
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(usize) -> Box<Never> {transmute::<usize, Box<Never>>}, val: Value(<ZST>) }
|
||||
+ _2 = const 1_usize as std::boxed::Box<Never> (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
+ _1 = const 1_usize as std::boxed::Box<Never> (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
}
|
||||
|
||||
bb1: {
|
||||
StorageLive(_3); // scope 1 at $DIR/lower_intrinsics.rs:+2:5: +2:16
|
||||
unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+2:11: +2:13
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,26 +3,22 @@
|
|||
|
||||
fn transmute_to_mut_uninhabited() -> ! {
|
||||
let mut _0: !; // return place in scope 0 at $DIR/lower_intrinsics.rs:+0:49: +0:50
|
||||
let mut _1: !; // in scope 0 at $DIR/lower_intrinsics.rs:+0:51: +3:2
|
||||
let _2: &mut Never; // in scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
let mut _3: !; // in scope 0 at $DIR/lower_intrinsics.rs:+2:5: +2:16
|
||||
let _1: &mut Never; // in scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
scope 1 {
|
||||
debug x => _2; // in scope 1 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
debug x => _1; // in scope 1 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+0:51: +3:2
|
||||
StorageLive(_2); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
- _2 = transmute::<usize, &mut Never>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
- _1 = transmute::<usize, &mut Never>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
- // mir::Constant
|
||||
- // + span: $DIR/lower_intrinsics.rs:64:25: 64:44
|
||||
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(usize) -> &mut Never {transmute::<usize, &mut Never>}, val: Value(<ZST>) }
|
||||
+ _2 = const 1_usize as &mut Never (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
+ _1 = const 1_usize as &mut Never (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
|
||||
}
|
||||
|
||||
bb1: {
|
||||
StorageLive(_3); // scope 1 at $DIR/lower_intrinsics.rs:+2:5: +2:16
|
||||
unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+2:11: +2:13
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,26 +3,22 @@
|
|||
|
||||
fn transmute_to_ref_uninhabited() -> ! {
|
||||
let mut _0: !; // return place in scope 0 at $DIR/lower_intrinsics.rs:+0:49: +0:50
|
||||
let mut _1: !; // in scope 0 at $DIR/lower_intrinsics.rs:+0:51: +3:2
|
||||
let _2: &Never; // in scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
let mut _3: !; // in scope 0 at $DIR/lower_intrinsics.rs:+2:5: +2:16
|
||||
let _1: &Never; // in scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
scope 1 {
|
||||
debug x => _2; // in scope 1 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
debug x => _1; // in scope 1 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+0:51: +3:2
|
||||
StorageLive(_2); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
- _2 = transmute::<usize, &Never>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:21: +1:48
|
||||
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
|
||||
- _1 = transmute::<usize, &Never>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:21: +1:48
|
||||
- // mir::Constant
|
||||
- // + span: $DIR/lower_intrinsics.rs:58:21: 58:40
|
||||
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(usize) -> &Never {transmute::<usize, &Never>}, val: Value(<ZST>) }
|
||||
+ _2 = const 1_usize as &Never (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:21: +1:48
|
||||
+ _1 = const 1_usize as &Never (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:21: +1:48
|
||||
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:21: +1:48
|
||||
}
|
||||
|
||||
bb1: {
|
||||
StorageLive(_3); // scope 1 at $DIR/lower_intrinsics.rs:+2:5: +2:16
|
||||
unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+2:11: +2:13
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,16 +3,15 @@
|
|||
|
||||
fn unreachable() -> ! {
|
||||
let mut _0: !; // return place in scope 0 at $DIR/lower_intrinsics.rs:+0:25: +0:26
|
||||
let mut _1: !; // in scope 0 at $DIR/lower_intrinsics.rs:+0:27: +2:2
|
||||
let _2: (); // in scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:45
|
||||
let mut _3: !; // in scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:45
|
||||
let _1: (); // in scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:45
|
||||
let mut _2: !; // in scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:45
|
||||
scope 1 {
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_2); // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:47
|
||||
StorageLive(_3); // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:45
|
||||
- _3 = std::intrinsics::unreachable() -> unwind unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:45
|
||||
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:47
|
||||
StorageLive(_2); // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:45
|
||||
- _2 = std::intrinsics::unreachable() -> unwind unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:45
|
||||
- // mir::Constant
|
||||
- // + span: $DIR/lower_intrinsics.rs:31:14: 31:43
|
||||
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn() -> ! {std::intrinsics::unreachable}, val: Value(<ZST>) }
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue