Auto merge of #80475 - simonvandel:fix-77355, r=oli-obk
New mir-opt pass to simplify gotos with const values (reopening #77486) Reopening PR #77486 Fixes #77355 This pass optimizes the following sequence ```rust bb2: { _2 = const true; goto -> bb3; } bb3: { switchInt(_2) -> [false: bb4, otherwise: bb5]; } ``` into ```rust bb2: { _2 = const true; goto -> bb5; } ```
This commit is contained in:
commit
6b56603e35
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@ -1518,7 +1518,14 @@ pub enum StatementKind<'tcx> {
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}
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impl<'tcx> StatementKind<'tcx> {
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pub fn as_assign_mut(&mut self) -> Option<&mut Box<(Place<'tcx>, Rvalue<'tcx>)>> {
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pub fn as_assign_mut(&mut self) -> Option<&mut (Place<'tcx>, Rvalue<'tcx>)> {
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match self {
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StatementKind::Assign(x) => Some(x),
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_ => None,
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}
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}
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pub fn as_assign(&self) -> Option<&(Place<'tcx>, Rvalue<'tcx>)> {
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match self {
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StatementKind::Assign(x) => Some(x),
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_ => None,
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@ -407,6 +407,22 @@ impl<'tcx> TerminatorKind<'tcx> {
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| TerminatorKind::FalseUnwind { ref mut unwind, .. } => Some(unwind),
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}
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}
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pub fn as_switch(&self) -> Option<(&Operand<'tcx>, Ty<'tcx>, &SwitchTargets)> {
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match self {
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TerminatorKind::SwitchInt { discr, switch_ty, targets } => {
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Some((discr, switch_ty, targets))
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}
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_ => None,
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}
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}
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pub fn as_goto(&self) -> Option<BasicBlock> {
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match self {
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TerminatorKind::Goto { target } => Some(*target),
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_ => None,
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}
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}
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}
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impl<'tcx> Debug for TerminatorKind<'tcx> {
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@ -514,6 +514,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
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/// Evaluate the operand, returning a place where you can then find the data.
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/// If you already know the layout, you can save two table lookups
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/// by passing it in here.
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#[inline]
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pub fn eval_operand(
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&self,
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mir_op: &mir::Operand<'tcx>,
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@ -0,0 +1,122 @@
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//! This pass optimizes the following sequence
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//! ```rust,ignore (example)
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//! bb2: {
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//! _2 = const true;
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//! goto -> bb3;
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//! }
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//!
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//! bb3: {
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//! switchInt(_2) -> [false: bb4, otherwise: bb5];
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//! }
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//! ```
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//! into
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//! ```rust,ignore (example)
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//! bb2: {
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//! _2 = const true;
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//! goto -> bb5;
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//! }
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//! ```
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use crate::transform::MirPass;
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use rustc_middle::mir::*;
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use rustc_middle::ty::TyCtxt;
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use rustc_middle::{mir::visit::Visitor, ty::ParamEnv};
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use super::simplify::{simplify_cfg, simplify_locals};
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pub struct ConstGoto;
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impl<'tcx> MirPass<'tcx> for ConstGoto {
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fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
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if tcx.sess.opts.debugging_opts.mir_opt_level < 3 {
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return;
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}
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trace!("Running ConstGoto on {:?}", body.source);
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let param_env = tcx.param_env_reveal_all_normalized(body.source.def_id());
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let mut opt_finder =
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ConstGotoOptimizationFinder { tcx, body, optimizations: vec![], param_env };
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opt_finder.visit_body(body);
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let should_simplify = !opt_finder.optimizations.is_empty();
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for opt in opt_finder.optimizations {
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let terminator = body.basic_blocks_mut()[opt.bb_with_goto].terminator_mut();
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let new_goto = TerminatorKind::Goto { target: opt.target_to_use_in_goto };
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debug!("SUCCESS: replacing `{:?}` with `{:?}`", terminator.kind, new_goto);
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terminator.kind = new_goto;
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}
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// if we applied optimizations, we potentially have some cfg to cleanup to
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// make it easier for further passes
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if should_simplify {
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simplify_cfg(body);
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simplify_locals(body, tcx);
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}
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}
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}
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impl<'a, 'tcx> Visitor<'tcx> for ConstGotoOptimizationFinder<'a, 'tcx> {
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fn visit_terminator(&mut self, terminator: &Terminator<'tcx>, location: Location) {
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let _: Option<_> = try {
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let target = terminator.kind.as_goto()?;
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// We only apply this optimization if the last statement is a const assignment
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let last_statement = self.body.basic_blocks()[location.block].statements.last()?;
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if let (place, Rvalue::Use(Operand::Constant(_const))) =
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last_statement.kind.as_assign()?
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{
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// We found a constant being assigned to `place`.
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// Now check that the target of this Goto switches on this place.
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let target_bb = &self.body.basic_blocks()[target];
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// FIXME(simonvandel): We are conservative here when we don't allow
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// any statements in the target basic block.
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// This could probably be relaxed to allow `StorageDead`s which could be
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// copied to the predecessor of this block.
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if !target_bb.statements.is_empty() {
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None?
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}
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let target_bb_terminator = target_bb.terminator();
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let (discr, switch_ty, targets) = target_bb_terminator.kind.as_switch()?;
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if discr.place() == Some(*place) {
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// We now know that the Switch matches on the const place, and it is statementless
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// Now find which value in the Switch matches the const value.
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let const_value =
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_const.literal.try_eval_bits(self.tcx, self.param_env, switch_ty)?;
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let found_value_idx_option = targets
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.iter()
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.enumerate()
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.find(|(_, (value, _))| const_value == *value)
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.map(|(idx, _)| idx);
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let target_to_use_in_goto =
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if let Some(found_value_idx) = found_value_idx_option {
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targets.iter().nth(found_value_idx).unwrap().1
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} else {
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// If we did not find the const value in values, it must be the otherwise case
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targets.otherwise()
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};
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self.optimizations.push(OptimizationToApply {
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bb_with_goto: location.block,
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target_to_use_in_goto,
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});
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}
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}
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Some(())
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};
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self.super_terminator(terminator, location);
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}
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}
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struct OptimizationToApply {
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bb_with_goto: BasicBlock,
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target_to_use_in_goto: BasicBlock,
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}
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pub struct ConstGotoOptimizationFinder<'a, 'tcx> {
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tcx: TyCtxt<'tcx>,
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body: &'a Body<'tcx>,
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param_env: ParamEnv<'tcx>,
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optimizations: Vec<OptimizationToApply>,
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}
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@ -22,6 +22,7 @@ pub mod check_packed_ref;
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pub mod check_unsafety;
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pub mod cleanup_post_borrowck;
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pub mod const_debuginfo;
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pub mod const_goto;
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pub mod const_prop;
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pub mod coverage;
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pub mod deaggregator;
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@ -492,6 +493,7 @@ fn run_optimization_passes<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
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// The main optimizations that we do on MIR.
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let optimizations: &[&dyn MirPass<'tcx>] = &[
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&const_goto::ConstGoto,
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&remove_unneeded_drops::RemoveUnneededDrops,
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&match_branches::MatchBranchSimplification,
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// inst combine is after MatchBranchSimplification to clean up Ne(_1, false)
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@ -320,7 +320,11 @@ pub struct SimplifyLocals;
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impl<'tcx> MirPass<'tcx> for SimplifyLocals {
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fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
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trace!("running SimplifyLocals on {:?}", body.source);
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simplify_locals(body, tcx);
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}
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}
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pub fn simplify_locals<'tcx>(body: &mut Body<'tcx>, tcx: TyCtxt<'tcx>) {
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// First, we're going to get a count of *actual* uses for every `Local`.
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let mut used_locals = UsedLocals::new(body);
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@ -342,7 +346,6 @@ impl<'tcx> MirPass<'tcx> for SimplifyLocals {
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body.local_decls.shrink_to_fit();
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}
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}
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}
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/// Construct the mapping while swapping out unused stuff out from the `vec`.
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@ -80,7 +80,7 @@ impl<'tcx> MirPass<'tcx> for SimplifyComparisonIntegral {
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// we convert the move in the comparison statement to a copy.
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// unwrap is safe as we know this statement is an assign
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let box (_, rhs) = bb.statements[opt.bin_op_stmt_idx].kind.as_assign_mut().unwrap();
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let (_, rhs) = bb.statements[opt.bin_op_stmt_idx].kind.as_assign_mut().unwrap();
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use Operand::*;
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match rhs {
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@ -0,0 +1,52 @@
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- // MIR for `issue_77355_opt` before ConstGoto
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+ // MIR for `issue_77355_opt` after ConstGoto
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fn issue_77355_opt(_1: Foo) -> u64 {
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debug num => _1; // in scope 0 at $DIR/const_goto.rs:11:20: 11:23
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let mut _0: u64; // return place in scope 0 at $DIR/const_goto.rs:11:33: 11:36
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- let mut _2: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
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- let mut _3: isize; // in scope 0 at $DIR/const_goto.rs:12:22: 12:28
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+ let mut _2: isize; // in scope 0 at $DIR/const_goto.rs:12:22: 12:28
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bb0: {
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- StorageLive(_2); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
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- _3 = discriminant(_1); // scope 0 at $DIR/const_goto.rs:12:22: 12:28
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- switchInt(move _3) -> [1_isize: bb2, 2_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/const_goto.rs:12:22: 12:28
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+ _2 = discriminant(_1); // scope 0 at $DIR/const_goto.rs:12:22: 12:28
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+ switchInt(move _2) -> [1_isize: bb2, 2_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/const_goto.rs:12:22: 12:28
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}
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bb1: {
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- _2 = const false; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
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- goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
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+ _0 = const 42_u64; // scope 0 at $DIR/const_goto.rs:12:53: 12:55
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+ goto -> bb3; // scope 0 at $DIR/const_goto.rs:12:5: 12:57
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}
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bb2: {
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- _2 = const true; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
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- goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
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- }
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-
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- bb3: {
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- switchInt(move _2) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/const_goto.rs:12:5: 12:57
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- }
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-
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- bb4: {
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_0 = const 23_u64; // scope 0 at $DIR/const_goto.rs:12:41: 12:43
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- goto -> bb6; // scope 0 at $DIR/const_goto.rs:12:5: 12:57
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+ goto -> bb3; // scope 0 at $DIR/const_goto.rs:12:5: 12:57
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}
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- bb5: {
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- _0 = const 42_u64; // scope 0 at $DIR/const_goto.rs:12:53: 12:55
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- goto -> bb6; // scope 0 at $DIR/const_goto.rs:12:5: 12:57
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- }
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-
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- bb6: {
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- StorageDead(_2); // scope 0 at $DIR/const_goto.rs:12:56: 12:57
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+ bb3: {
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return; // scope 0 at $DIR/const_goto.rs:13:2: 13:2
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}
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}
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|
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@ -0,0 +1,16 @@
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pub enum Foo {
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A,
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B,
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C,
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D,
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E,
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F,
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}
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// EMIT_MIR const_goto.issue_77355_opt.ConstGoto.diff
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fn issue_77355_opt(num: Foo) -> u64 {
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if matches!(num, Foo::B | Foo::C) { 23 } else { 42 }
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}
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fn main() {
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issue_77355_opt(Foo::A);
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}
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@ -0,0 +1,51 @@
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- // MIR for `f` before ConstGoto
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+ // MIR for `f` after ConstGoto
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fn f() -> u64 {
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let mut _0: u64; // return place in scope 0 at $DIR/const_goto_const_eval_fail.rs:6:44: 6:47
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let mut _1: bool; // in scope 0 at $DIR/const_goto_const_eval_fail.rs:7:11: 12:6
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let mut _2: i32; // in scope 0 at $DIR/const_goto_const_eval_fail.rs:8:15: 8:16
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|
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/const_goto_const_eval_fail.rs:7:11: 12:6
|
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StorageLive(_2); // scope 0 at $DIR/const_goto_const_eval_fail.rs:8:15: 8:16
|
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_2 = const A; // scope 0 at $DIR/const_goto_const_eval_fail.rs:8:15: 8:16
|
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switchInt(_2) -> [1_i32: bb2, 2_i32: bb2, 3_i32: bb2, otherwise: bb1]; // scope 0 at $DIR/const_goto_const_eval_fail.rs:9:13: 9:14
|
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}
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|
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bb1: {
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_1 = const true; // scope 0 at $DIR/const_goto_const_eval_fail.rs:10:18: 10:22
|
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goto -> bb3; // scope 0 at $DIR/const_goto_const_eval_fail.rs:8:9: 11:10
|
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}
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|
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bb2: {
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_1 = const B; // scope 0 at $DIR/const_goto_const_eval_fail.rs:9:26: 9:27
|
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- goto -> bb3; // scope 0 at $DIR/const_goto_const_eval_fail.rs:8:9: 11:10
|
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+ switchInt(_1) -> [false: bb4, otherwise: bb3]; // scope 0 at $DIR/const_goto_const_eval_fail.rs:13:9: 13:14
|
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}
|
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|
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bb3: {
|
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- switchInt(_1) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/const_goto_const_eval_fail.rs:13:9: 13:14
|
||||
- }
|
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-
|
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- bb4: {
|
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_0 = const 2_u64; // scope 0 at $DIR/const_goto_const_eval_fail.rs:14:17: 14:18
|
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- goto -> bb6; // scope 0 at $DIR/const_goto_const_eval_fail.rs:7:5: 15:6
|
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+ goto -> bb5; // scope 0 at $DIR/const_goto_const_eval_fail.rs:7:5: 15:6
|
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}
|
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|
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- bb5: {
|
||||
+ bb4: {
|
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_0 = const 1_u64; // scope 0 at $DIR/const_goto_const_eval_fail.rs:13:18: 13:19
|
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- goto -> bb6; // scope 0 at $DIR/const_goto_const_eval_fail.rs:7:5: 15:6
|
||||
+ goto -> bb5; // scope 0 at $DIR/const_goto_const_eval_fail.rs:7:5: 15:6
|
||||
}
|
||||
|
||||
- bb6: {
|
||||
+ bb5: {
|
||||
StorageDead(_2); // scope 0 at $DIR/const_goto_const_eval_fail.rs:16:1: 16:2
|
||||
StorageDead(_1); // scope 0 at $DIR/const_goto_const_eval_fail.rs:16:1: 16:2
|
||||
return; // scope 0 at $DIR/const_goto_const_eval_fail.rs:16:2: 16:2
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
#![feature(min_const_generics)]
|
||||
#![crate_type = "lib"]
|
||||
|
||||
// If const eval fails, then don't crash
|
||||
// EMIT_MIR const_goto_const_eval_fail.f.ConstGoto.diff
|
||||
pub fn f<const A: i32, const B: bool>() -> u64 {
|
||||
match {
|
||||
match A {
|
||||
1 | 2 | 3 => B,
|
||||
_ => true,
|
||||
}
|
||||
} {
|
||||
false => 1,
|
||||
true => 2,
|
||||
}
|
||||
}
|
|
@ -2,84 +2,84 @@
|
|||
+ // MIR for `bar` after MatchBranchSimplification
|
||||
|
||||
fn bar(_1: i32) -> (bool, bool, bool, bool) {
|
||||
debug i => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:12:8: 12:9
|
||||
let mut _0: (bool, bool, bool, bool); // return place in scope 0 at $DIR/matches_reduce_branches.rs:12:19: 12:43
|
||||
let _2: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:13:9: 13:10
|
||||
let _6: (); // in scope 0 at $DIR/matches_reduce_branches.rs:18:5: 33:6
|
||||
let mut _7: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:35:6: 35:7
|
||||
let mut _8: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:35:9: 35:10
|
||||
let mut _9: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:35:12: 35:13
|
||||
let mut _10: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:35:15: 35:16
|
||||
+ let mut _11: i32; // in scope 0 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
debug i => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:13:8: 13:9
|
||||
let mut _0: (bool, bool, bool, bool); // return place in scope 0 at $DIR/matches_reduce_branches.rs:13:19: 13:43
|
||||
let _2: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
let _6: (); // in scope 0 at $DIR/matches_reduce_branches.rs:19:5: 34:6
|
||||
let mut _7: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:36:6: 36:7
|
||||
let mut _8: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:36:9: 36:10
|
||||
let mut _9: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:36:12: 36:13
|
||||
let mut _10: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:36:15: 36:16
|
||||
+ let mut _11: i32; // in scope 0 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
scope 1 {
|
||||
debug a => _2; // in scope 1 at $DIR/matches_reduce_branches.rs:13:9: 13:10
|
||||
let _3: bool; // in scope 1 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
debug a => _2; // in scope 1 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
let _3: bool; // in scope 1 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
scope 2 {
|
||||
debug b => _3; // in scope 2 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
let _4: bool; // in scope 2 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
debug b => _3; // in scope 2 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
let _4: bool; // in scope 2 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
scope 3 {
|
||||
debug c => _4; // in scope 3 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
let _5: bool; // in scope 3 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
debug c => _4; // in scope 3 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
let _5: bool; // in scope 3 at $DIR/matches_reduce_branches.rs:17:9: 17:10
|
||||
scope 4 {
|
||||
debug d => _5; // in scope 4 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
debug d => _5; // in scope 4 at $DIR/matches_reduce_branches.rs:17:9: 17:10
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:13:9: 13:10
|
||||
StorageLive(_3); // scope 1 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
StorageLive(_4); // scope 2 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
StorageLive(_5); // scope 3 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
StorageLive(_6); // scope 4 at $DIR/matches_reduce_branches.rs:18:5: 33:6
|
||||
- switchInt(_1) -> [7_i32: bb2, otherwise: bb1]; // scope 4 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
StorageLive(_3); // scope 1 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
StorageLive(_4); // scope 2 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
StorageLive(_5); // scope 3 at $DIR/matches_reduce_branches.rs:17:9: 17:10
|
||||
StorageLive(_6); // scope 4 at $DIR/matches_reduce_branches.rs:19:5: 34:6
|
||||
- switchInt(_1) -> [7_i32: bb2, otherwise: bb1]; // scope 4 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
- }
|
||||
-
|
||||
- bb1: {
|
||||
- _2 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:27:13: 27:21
|
||||
- _3 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:28:13: 28:22
|
||||
- _4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:29:13: 29:22
|
||||
- _5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:30:13: 30:21
|
||||
- goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:18:5: 33:6
|
||||
- _2 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:28:13: 28:21
|
||||
- _3 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:29:13: 29:22
|
||||
- _4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:30:13: 30:22
|
||||
- _5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:31:13: 31:21
|
||||
- goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:19:5: 34:6
|
||||
- }
|
||||
-
|
||||
- bb2: {
|
||||
- _2 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:20:13: 20:22
|
||||
- _3 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:21:13: 21:21
|
||||
+ StorageLive(_11); // scope 4 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
+ _11 = _1; // scope 4 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
+ _2 = Ne(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:20:13: 20:22
|
||||
+ _3 = Eq(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:21:13: 21:21
|
||||
_4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:22:13: 22:22
|
||||
_5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:23:13: 23:21
|
||||
- goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:18:5: 33:6
|
||||
- _2 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:21:13: 21:22
|
||||
- _3 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:22:13: 22:21
|
||||
+ StorageLive(_11); // scope 4 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
+ _11 = _1; // scope 4 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
+ _2 = Ne(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:21:13: 21:22
|
||||
+ _3 = Eq(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:22:13: 22:21
|
||||
_4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:23:13: 23:22
|
||||
_5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:24:13: 24:21
|
||||
- goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:19:5: 34:6
|
||||
- }
|
||||
-
|
||||
- bb3: {
|
||||
+ StorageDead(_11); // scope 4 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
StorageDead(_6); // scope 4 at $DIR/matches_reduce_branches.rs:33:6: 33:7
|
||||
StorageLive(_7); // scope 4 at $DIR/matches_reduce_branches.rs:35:6: 35:7
|
||||
_7 = _2; // scope 4 at $DIR/matches_reduce_branches.rs:35:6: 35:7
|
||||
StorageLive(_8); // scope 4 at $DIR/matches_reduce_branches.rs:35:9: 35:10
|
||||
_8 = _3; // scope 4 at $DIR/matches_reduce_branches.rs:35:9: 35:10
|
||||
StorageLive(_9); // scope 4 at $DIR/matches_reduce_branches.rs:35:12: 35:13
|
||||
_9 = _4; // scope 4 at $DIR/matches_reduce_branches.rs:35:12: 35:13
|
||||
StorageLive(_10); // scope 4 at $DIR/matches_reduce_branches.rs:35:15: 35:16
|
||||
_10 = _5; // scope 4 at $DIR/matches_reduce_branches.rs:35:15: 35:16
|
||||
(_0.0: bool) = move _7; // scope 4 at $DIR/matches_reduce_branches.rs:35:5: 35:17
|
||||
(_0.1: bool) = move _8; // scope 4 at $DIR/matches_reduce_branches.rs:35:5: 35:17
|
||||
(_0.2: bool) = move _9; // scope 4 at $DIR/matches_reduce_branches.rs:35:5: 35:17
|
||||
(_0.3: bool) = move _10; // scope 4 at $DIR/matches_reduce_branches.rs:35:5: 35:17
|
||||
StorageDead(_10); // scope 4 at $DIR/matches_reduce_branches.rs:35:16: 35:17
|
||||
StorageDead(_9); // scope 4 at $DIR/matches_reduce_branches.rs:35:16: 35:17
|
||||
StorageDead(_8); // scope 4 at $DIR/matches_reduce_branches.rs:35:16: 35:17
|
||||
StorageDead(_7); // scope 4 at $DIR/matches_reduce_branches.rs:35:16: 35:17
|
||||
StorageDead(_5); // scope 3 at $DIR/matches_reduce_branches.rs:36:1: 36:2
|
||||
StorageDead(_4); // scope 2 at $DIR/matches_reduce_branches.rs:36:1: 36:2
|
||||
StorageDead(_3); // scope 1 at $DIR/matches_reduce_branches.rs:36:1: 36:2
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:36:1: 36:2
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:36:2: 36:2
|
||||
+ StorageDead(_11); // scope 4 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
StorageDead(_6); // scope 4 at $DIR/matches_reduce_branches.rs:34:6: 34:7
|
||||
StorageLive(_7); // scope 4 at $DIR/matches_reduce_branches.rs:36:6: 36:7
|
||||
_7 = _2; // scope 4 at $DIR/matches_reduce_branches.rs:36:6: 36:7
|
||||
StorageLive(_8); // scope 4 at $DIR/matches_reduce_branches.rs:36:9: 36:10
|
||||
_8 = _3; // scope 4 at $DIR/matches_reduce_branches.rs:36:9: 36:10
|
||||
StorageLive(_9); // scope 4 at $DIR/matches_reduce_branches.rs:36:12: 36:13
|
||||
_9 = _4; // scope 4 at $DIR/matches_reduce_branches.rs:36:12: 36:13
|
||||
StorageLive(_10); // scope 4 at $DIR/matches_reduce_branches.rs:36:15: 36:16
|
||||
_10 = _5; // scope 4 at $DIR/matches_reduce_branches.rs:36:15: 36:16
|
||||
(_0.0: bool) = move _7; // scope 4 at $DIR/matches_reduce_branches.rs:36:5: 36:17
|
||||
(_0.1: bool) = move _8; // scope 4 at $DIR/matches_reduce_branches.rs:36:5: 36:17
|
||||
(_0.2: bool) = move _9; // scope 4 at $DIR/matches_reduce_branches.rs:36:5: 36:17
|
||||
(_0.3: bool) = move _10; // scope 4 at $DIR/matches_reduce_branches.rs:36:5: 36:17
|
||||
StorageDead(_10); // scope 4 at $DIR/matches_reduce_branches.rs:36:16: 36:17
|
||||
StorageDead(_9); // scope 4 at $DIR/matches_reduce_branches.rs:36:16: 36:17
|
||||
StorageDead(_8); // scope 4 at $DIR/matches_reduce_branches.rs:36:16: 36:17
|
||||
StorageDead(_7); // scope 4 at $DIR/matches_reduce_branches.rs:36:16: 36:17
|
||||
StorageDead(_5); // scope 3 at $DIR/matches_reduce_branches.rs:37:1: 37:2
|
||||
StorageDead(_4); // scope 2 at $DIR/matches_reduce_branches.rs:37:1: 37:2
|
||||
StorageDead(_3); // scope 1 at $DIR/matches_reduce_branches.rs:37:1: 37:2
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:37:1: 37:2
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:37:2: 37:2
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -2,84 +2,84 @@
|
|||
+ // MIR for `bar` after MatchBranchSimplification
|
||||
|
||||
fn bar(_1: i32) -> (bool, bool, bool, bool) {
|
||||
debug i => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:12:8: 12:9
|
||||
let mut _0: (bool, bool, bool, bool); // return place in scope 0 at $DIR/matches_reduce_branches.rs:12:19: 12:43
|
||||
let _2: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:13:9: 13:10
|
||||
let _6: (); // in scope 0 at $DIR/matches_reduce_branches.rs:18:5: 33:6
|
||||
let mut _7: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:35:6: 35:7
|
||||
let mut _8: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:35:9: 35:10
|
||||
let mut _9: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:35:12: 35:13
|
||||
let mut _10: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:35:15: 35:16
|
||||
+ let mut _11: i32; // in scope 0 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
debug i => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:13:8: 13:9
|
||||
let mut _0: (bool, bool, bool, bool); // return place in scope 0 at $DIR/matches_reduce_branches.rs:13:19: 13:43
|
||||
let _2: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
let _6: (); // in scope 0 at $DIR/matches_reduce_branches.rs:19:5: 34:6
|
||||
let mut _7: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:36:6: 36:7
|
||||
let mut _8: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:36:9: 36:10
|
||||
let mut _9: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:36:12: 36:13
|
||||
let mut _10: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:36:15: 36:16
|
||||
+ let mut _11: i32; // in scope 0 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
scope 1 {
|
||||
debug a => _2; // in scope 1 at $DIR/matches_reduce_branches.rs:13:9: 13:10
|
||||
let _3: bool; // in scope 1 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
debug a => _2; // in scope 1 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
let _3: bool; // in scope 1 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
scope 2 {
|
||||
debug b => _3; // in scope 2 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
let _4: bool; // in scope 2 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
debug b => _3; // in scope 2 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
let _4: bool; // in scope 2 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
scope 3 {
|
||||
debug c => _4; // in scope 3 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
let _5: bool; // in scope 3 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
debug c => _4; // in scope 3 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
let _5: bool; // in scope 3 at $DIR/matches_reduce_branches.rs:17:9: 17:10
|
||||
scope 4 {
|
||||
debug d => _5; // in scope 4 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
debug d => _5; // in scope 4 at $DIR/matches_reduce_branches.rs:17:9: 17:10
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:13:9: 13:10
|
||||
StorageLive(_3); // scope 1 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
StorageLive(_4); // scope 2 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
StorageLive(_5); // scope 3 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
StorageLive(_6); // scope 4 at $DIR/matches_reduce_branches.rs:18:5: 33:6
|
||||
- switchInt(_1) -> [7_i32: bb2, otherwise: bb1]; // scope 4 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:14:9: 14:10
|
||||
StorageLive(_3); // scope 1 at $DIR/matches_reduce_branches.rs:15:9: 15:10
|
||||
StorageLive(_4); // scope 2 at $DIR/matches_reduce_branches.rs:16:9: 16:10
|
||||
StorageLive(_5); // scope 3 at $DIR/matches_reduce_branches.rs:17:9: 17:10
|
||||
StorageLive(_6); // scope 4 at $DIR/matches_reduce_branches.rs:19:5: 34:6
|
||||
- switchInt(_1) -> [7_i32: bb2, otherwise: bb1]; // scope 4 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
- }
|
||||
-
|
||||
- bb1: {
|
||||
- _2 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:27:13: 27:21
|
||||
- _3 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:28:13: 28:22
|
||||
- _4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:29:13: 29:22
|
||||
- _5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:30:13: 30:21
|
||||
- goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:18:5: 33:6
|
||||
- _2 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:28:13: 28:21
|
||||
- _3 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:29:13: 29:22
|
||||
- _4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:30:13: 30:22
|
||||
- _5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:31:13: 31:21
|
||||
- goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:19:5: 34:6
|
||||
- }
|
||||
-
|
||||
- bb2: {
|
||||
- _2 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:20:13: 20:22
|
||||
- _3 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:21:13: 21:21
|
||||
+ StorageLive(_11); // scope 4 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
+ _11 = _1; // scope 4 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
+ _2 = Ne(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:20:13: 20:22
|
||||
+ _3 = Eq(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:21:13: 21:21
|
||||
_4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:22:13: 22:22
|
||||
_5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:23:13: 23:21
|
||||
- goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:18:5: 33:6
|
||||
- _2 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:21:13: 21:22
|
||||
- _3 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:22:13: 22:21
|
||||
+ StorageLive(_11); // scope 4 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
+ _11 = _1; // scope 4 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
+ _2 = Ne(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:21:13: 21:22
|
||||
+ _3 = Eq(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:22:13: 22:21
|
||||
_4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:23:13: 23:22
|
||||
_5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:24:13: 24:21
|
||||
- goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:19:5: 34:6
|
||||
- }
|
||||
-
|
||||
- bb3: {
|
||||
+ StorageDead(_11); // scope 4 at $DIR/matches_reduce_branches.rs:19:9: 19:10
|
||||
StorageDead(_6); // scope 4 at $DIR/matches_reduce_branches.rs:33:6: 33:7
|
||||
StorageLive(_7); // scope 4 at $DIR/matches_reduce_branches.rs:35:6: 35:7
|
||||
_7 = _2; // scope 4 at $DIR/matches_reduce_branches.rs:35:6: 35:7
|
||||
StorageLive(_8); // scope 4 at $DIR/matches_reduce_branches.rs:35:9: 35:10
|
||||
_8 = _3; // scope 4 at $DIR/matches_reduce_branches.rs:35:9: 35:10
|
||||
StorageLive(_9); // scope 4 at $DIR/matches_reduce_branches.rs:35:12: 35:13
|
||||
_9 = _4; // scope 4 at $DIR/matches_reduce_branches.rs:35:12: 35:13
|
||||
StorageLive(_10); // scope 4 at $DIR/matches_reduce_branches.rs:35:15: 35:16
|
||||
_10 = _5; // scope 4 at $DIR/matches_reduce_branches.rs:35:15: 35:16
|
||||
(_0.0: bool) = move _7; // scope 4 at $DIR/matches_reduce_branches.rs:35:5: 35:17
|
||||
(_0.1: bool) = move _8; // scope 4 at $DIR/matches_reduce_branches.rs:35:5: 35:17
|
||||
(_0.2: bool) = move _9; // scope 4 at $DIR/matches_reduce_branches.rs:35:5: 35:17
|
||||
(_0.3: bool) = move _10; // scope 4 at $DIR/matches_reduce_branches.rs:35:5: 35:17
|
||||
StorageDead(_10); // scope 4 at $DIR/matches_reduce_branches.rs:35:16: 35:17
|
||||
StorageDead(_9); // scope 4 at $DIR/matches_reduce_branches.rs:35:16: 35:17
|
||||
StorageDead(_8); // scope 4 at $DIR/matches_reduce_branches.rs:35:16: 35:17
|
||||
StorageDead(_7); // scope 4 at $DIR/matches_reduce_branches.rs:35:16: 35:17
|
||||
StorageDead(_5); // scope 3 at $DIR/matches_reduce_branches.rs:36:1: 36:2
|
||||
StorageDead(_4); // scope 2 at $DIR/matches_reduce_branches.rs:36:1: 36:2
|
||||
StorageDead(_3); // scope 1 at $DIR/matches_reduce_branches.rs:36:1: 36:2
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:36:1: 36:2
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:36:2: 36:2
|
||||
+ StorageDead(_11); // scope 4 at $DIR/matches_reduce_branches.rs:20:9: 20:10
|
||||
StorageDead(_6); // scope 4 at $DIR/matches_reduce_branches.rs:34:6: 34:7
|
||||
StorageLive(_7); // scope 4 at $DIR/matches_reduce_branches.rs:36:6: 36:7
|
||||
_7 = _2; // scope 4 at $DIR/matches_reduce_branches.rs:36:6: 36:7
|
||||
StorageLive(_8); // scope 4 at $DIR/matches_reduce_branches.rs:36:9: 36:10
|
||||
_8 = _3; // scope 4 at $DIR/matches_reduce_branches.rs:36:9: 36:10
|
||||
StorageLive(_9); // scope 4 at $DIR/matches_reduce_branches.rs:36:12: 36:13
|
||||
_9 = _4; // scope 4 at $DIR/matches_reduce_branches.rs:36:12: 36:13
|
||||
StorageLive(_10); // scope 4 at $DIR/matches_reduce_branches.rs:36:15: 36:16
|
||||
_10 = _5; // scope 4 at $DIR/matches_reduce_branches.rs:36:15: 36:16
|
||||
(_0.0: bool) = move _7; // scope 4 at $DIR/matches_reduce_branches.rs:36:5: 36:17
|
||||
(_0.1: bool) = move _8; // scope 4 at $DIR/matches_reduce_branches.rs:36:5: 36:17
|
||||
(_0.2: bool) = move _9; // scope 4 at $DIR/matches_reduce_branches.rs:36:5: 36:17
|
||||
(_0.3: bool) = move _10; // scope 4 at $DIR/matches_reduce_branches.rs:36:5: 36:17
|
||||
StorageDead(_10); // scope 4 at $DIR/matches_reduce_branches.rs:36:16: 36:17
|
||||
StorageDead(_9); // scope 4 at $DIR/matches_reduce_branches.rs:36:16: 36:17
|
||||
StorageDead(_8); // scope 4 at $DIR/matches_reduce_branches.rs:36:16: 36:17
|
||||
StorageDead(_7); // scope 4 at $DIR/matches_reduce_branches.rs:36:16: 36:17
|
||||
StorageDead(_5); // scope 3 at $DIR/matches_reduce_branches.rs:37:1: 37:2
|
||||
StorageDead(_4); // scope 2 at $DIR/matches_reduce_branches.rs:37:1: 37:2
|
||||
StorageDead(_3); // scope 1 at $DIR/matches_reduce_branches.rs:37:1: 37:2
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:37:1: 37:2
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:37:2: 37:2
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -2,47 +2,26 @@
|
|||
+ // MIR for `foo` after MatchBranchSimplification
|
||||
|
||||
fn foo(_1: Option<()>) -> () {
|
||||
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:6:8: 6:11
|
||||
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:6:25: 6:25
|
||||
let mut _2: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
let mut _3: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ let mut _4: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:7:8: 7:11
|
||||
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:7:25: 7:25
|
||||
let mut _2: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
|
||||
bb0: {
|
||||
StorageLive(_2); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
_3 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
- switchInt(move _3) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ StorageLive(_4); // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ _4 = move _3; // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ _2 = Eq(_4, const 0_isize); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
+ StorageDead(_4); // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ switchInt(move _2) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
|
||||
_2 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
switchInt(move _2) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
}
|
||||
|
||||
bb1: {
|
||||
- _2 = const false; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
- goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
- }
|
||||
-
|
||||
- bb2: {
|
||||
- _2 = const true; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
- goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
- }
|
||||
-
|
||||
- bb3: {
|
||||
- switchInt(move _2) -> [false: bb4, otherwise: bb5]; // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
|
||||
- }
|
||||
-
|
||||
- bb4: {
|
||||
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:9:6: 9:6
|
||||
- goto -> bb5; // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
|
||||
+ goto -> bb2; // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
|
||||
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:10:6: 10:6
|
||||
goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:8:5: 10:6
|
||||
}
|
||||
|
||||
- bb5: {
|
||||
+ bb2: {
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:9:5: 9:6
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:10:2: 10:2
|
||||
bb2: {
|
||||
goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
}
|
||||
|
||||
bb3: {
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:11:2: 11:2
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -2,47 +2,26 @@
|
|||
+ // MIR for `foo` after MatchBranchSimplification
|
||||
|
||||
fn foo(_1: Option<()>) -> () {
|
||||
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:6:8: 6:11
|
||||
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:6:25: 6:25
|
||||
let mut _2: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
let mut _3: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ let mut _4: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:7:8: 7:11
|
||||
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:7:25: 7:25
|
||||
let mut _2: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
|
||||
bb0: {
|
||||
StorageLive(_2); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
_3 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
- switchInt(move _3) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ StorageLive(_4); // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ _4 = move _3; // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ _2 = Eq(_4, const 0_isize); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
+ StorageDead(_4); // scope 0 at $DIR/matches_reduce_branches.rs:7:22: 7:26
|
||||
+ switchInt(move _2) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
|
||||
_2 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
switchInt(move _2) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
}
|
||||
|
||||
bb1: {
|
||||
- _2 = const false; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
- goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
- }
|
||||
-
|
||||
- bb2: {
|
||||
- _2 = const true; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
- goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
- }
|
||||
-
|
||||
- bb3: {
|
||||
- switchInt(move _2) -> [false: bb4, otherwise: bb5]; // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
|
||||
- }
|
||||
-
|
||||
- bb4: {
|
||||
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:9:6: 9:6
|
||||
- goto -> bb5; // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
|
||||
+ goto -> bb2; // scope 0 at $DIR/matches_reduce_branches.rs:7:5: 9:6
|
||||
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:10:6: 10:6
|
||||
goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:8:5: 10:6
|
||||
}
|
||||
|
||||
- bb5: {
|
||||
+ bb2: {
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:9:5: 9:6
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:10:2: 10:2
|
||||
bb2: {
|
||||
goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
}
|
||||
|
||||
bb3: {
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:11:2: 11:2
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -0,0 +1,21 @@
|
|||
// MIR for `foo` before PreCodegen
|
||||
|
||||
fn foo(_1: Option<()>) -> () {
|
||||
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:7:8: 7:11
|
||||
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:7:25: 7:25
|
||||
let mut _2: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
|
||||
bb0: {
|
||||
_2 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
switchInt(move _2) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
}
|
||||
|
||||
bb1: {
|
||||
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:10:6: 10:6
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:8:5: 10:6
|
||||
}
|
||||
|
||||
bb2: {
|
||||
return; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
}
|
||||
}
|
|
@ -0,0 +1,21 @@
|
|||
// MIR for `foo` before PreCodegen
|
||||
|
||||
fn foo(_1: Option<()>) -> () {
|
||||
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:7:8: 7:11
|
||||
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:7:25: 7:25
|
||||
let mut _2: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
|
||||
bb0: {
|
||||
_2 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
switchInt(move _2) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:8:22: 8:26
|
||||
}
|
||||
|
||||
bb1: {
|
||||
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:10:6: 10:6
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:8:5: 10:6
|
||||
}
|
||||
|
||||
bb2: {
|
||||
return; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
}
|
||||
}
|
|
@ -2,110 +2,110 @@
|
|||
+ // MIR for `match_nested_if` after MatchBranchSimplification
|
||||
|
||||
fn match_nested_if() -> bool {
|
||||
let mut _0: bool; // return place in scope 0 at $DIR/matches_reduce_branches.rs:38:25: 38:29
|
||||
let _1: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:39:9: 39:12
|
||||
let mut _2: (); // in scope 0 at $DIR/matches_reduce_branches.rs:39:21: 39:23
|
||||
let mut _3: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
let mut _4: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
let mut _5: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
let mut _6: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:24: 40:28
|
||||
+ let mut _7: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
+ let mut _8: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
+ let mut _9: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ let mut _10: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
let mut _0: bool; // return place in scope 0 at $DIR/matches_reduce_branches.rs:39:25: 39:29
|
||||
let _1: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:9: 40:12
|
||||
let mut _2: (); // in scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:23
|
||||
let mut _3: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
let mut _4: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
let mut _5: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
let mut _6: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:24: 41:28
|
||||
+ let mut _7: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
+ let mut _8: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
+ let mut _9: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
+ let mut _10: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
scope 1 {
|
||||
debug val => _1; // in scope 1 at $DIR/matches_reduce_branches.rs:39:9: 39:12
|
||||
debug val => _1; // in scope 1 at $DIR/matches_reduce_branches.rs:40:9: 40:12
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/matches_reduce_branches.rs:39:9: 39:12
|
||||
StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:39:21: 39:23
|
||||
StorageLive(_3); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
StorageLive(_4); // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
StorageLive(_5); // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
StorageLive(_6); // scope 0 at $DIR/matches_reduce_branches.rs:40:24: 40:28
|
||||
_6 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:24: 40:28
|
||||
- switchInt(move _6) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
StorageLive(_1); // scope 0 at $DIR/matches_reduce_branches.rs:40:9: 40:12
|
||||
StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:23
|
||||
StorageLive(_3); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
StorageLive(_4); // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
StorageLive(_5); // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
StorageLive(_6); // scope 0 at $DIR/matches_reduce_branches.rs:41:24: 41:28
|
||||
_6 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:41:24: 41:28
|
||||
- switchInt(move _6) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
- }
|
||||
-
|
||||
- bb1: {
|
||||
- _5 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:30: 40:34
|
||||
- goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
- _5 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:41:31: 41:35
|
||||
- goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
- }
|
||||
-
|
||||
- bb2: {
|
||||
- _5 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:40:42: 40:47
|
||||
- goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
- _5 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:41:45: 41:50
|
||||
- goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
- }
|
||||
-
|
||||
- bb3: {
|
||||
+ StorageLive(_7); // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
+ _7 = move _6; // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
+ _5 = Ne(_7, const false); // scope 0 at $DIR/matches_reduce_branches.rs:40:42: 40:47
|
||||
+ StorageDead(_7); // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
StorageDead(_6); // scope 0 at $DIR/matches_reduce_branches.rs:40:47: 40:48
|
||||
- switchInt(move _5) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
+ StorageLive(_7); // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
+ _7 = move _6; // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
+ _5 = Ne(_7, const false); // scope 0 at $DIR/matches_reduce_branches.rs:41:45: 41:50
|
||||
+ StorageDead(_7); // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
StorageDead(_6); // scope 0 at $DIR/matches_reduce_branches.rs:41:51: 41:52
|
||||
- switchInt(move _5) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
- }
|
||||
-
|
||||
- bb4: {
|
||||
- _4 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:50: 40:54
|
||||
- goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
- _4 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:41:55: 41:59
|
||||
- goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
- }
|
||||
-
|
||||
- bb5: {
|
||||
- _4 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:40:62: 40:67
|
||||
- goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
- _4 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:41:69: 41:74
|
||||
- goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
- }
|
||||
-
|
||||
- bb6: {
|
||||
+ StorageLive(_8); // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
+ _8 = move _5; // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
+ _4 = Ne(_8, const false); // scope 0 at $DIR/matches_reduce_branches.rs:40:62: 40:67
|
||||
+ StorageDead(_8); // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
StorageDead(_5); // scope 0 at $DIR/matches_reduce_branches.rs:40:67: 40:68
|
||||
- switchInt(move _4) -> [false: bb8, otherwise: bb7]; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ StorageLive(_8); // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
+ _8 = move _5; // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
+ _4 = Ne(_8, const false); // scope 0 at $DIR/matches_reduce_branches.rs:41:69: 41:74
|
||||
+ StorageDead(_8); // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
StorageDead(_5); // scope 0 at $DIR/matches_reduce_branches.rs:41:75: 41:76
|
||||
- switchInt(move _4) -> [false: bb8, otherwise: bb7]; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
- }
|
||||
-
|
||||
- bb7: {
|
||||
- _3 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:70: 40:74
|
||||
- goto -> bb9; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
- _3 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:42:13: 42:17
|
||||
- goto -> bb9; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
- }
|
||||
-
|
||||
- bb8: {
|
||||
- _3 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:40:82: 40:87
|
||||
- goto -> bb9; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
- _3 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:44:13: 44:18
|
||||
- goto -> bb9; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
- }
|
||||
-
|
||||
- bb9: {
|
||||
+ StorageLive(_9); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ _9 = move _4; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ _3 = Ne(_9, const false); // scope 0 at $DIR/matches_reduce_branches.rs:40:82: 40:87
|
||||
+ StorageDead(_9); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
StorageDead(_4); // scope 0 at $DIR/matches_reduce_branches.rs:40:87: 40:88
|
||||
- switchInt(move _3) -> [false: bb11, otherwise: bb10]; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ StorageLive(_9); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
+ _9 = move _4; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
+ _3 = Ne(_9, const false); // scope 0 at $DIR/matches_reduce_branches.rs:44:13: 44:18
|
||||
+ StorageDead(_9); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
StorageDead(_4); // scope 0 at $DIR/matches_reduce_branches.rs:45:9: 45:10
|
||||
- switchInt(move _3) -> [false: bb11, otherwise: bb10]; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
- }
|
||||
-
|
||||
- bb10: {
|
||||
+ StorageLive(_10); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ _10 = move _3; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
StorageDead(_3); // scope 0 at $DIR/matches_reduce_branches.rs:40:95: 40:96
|
||||
- _1 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:92: 40:96
|
||||
- goto -> bb12; // scope 0 at $DIR/matches_reduce_branches.rs:39:15: 42:6
|
||||
+ StorageLive(_10); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
+ _10 = move _3; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
StorageDead(_3); // scope 0 at $DIR/matches_reduce_branches.rs:48:9: 48:10
|
||||
- _1 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:47:13: 47:17
|
||||
- goto -> bb12; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 50:6
|
||||
- }
|
||||
-
|
||||
- bb11: {
|
||||
- StorageDead(_3); // scope 0 at $DIR/matches_reduce_branches.rs:40:95: 40:96
|
||||
- _1 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:41:14: 41:19
|
||||
- goto -> bb12; // scope 0 at $DIR/matches_reduce_branches.rs:39:15: 42:6
|
||||
- StorageDead(_3); // scope 0 at $DIR/matches_reduce_branches.rs:48:9: 48:10
|
||||
- _1 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:49:14: 49:19
|
||||
- goto -> bb12; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 50:6
|
||||
- }
|
||||
-
|
||||
- bb12: {
|
||||
+ _1 = Ne(_10, const false); // scope 0 at $DIR/matches_reduce_branches.rs:41:14: 41:19
|
||||
+ StorageDead(_10); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:42:6: 42:7
|
||||
_0 = _1; // scope 1 at $DIR/matches_reduce_branches.rs:43:5: 43:8
|
||||
StorageDead(_1); // scope 0 at $DIR/matches_reduce_branches.rs:44:1: 44:2
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:44:2: 44:2
|
||||
+ _1 = Ne(_10, const false); // scope 0 at $DIR/matches_reduce_branches.rs:49:14: 49:19
|
||||
+ StorageDead(_10); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:50:6: 50:7
|
||||
_0 = _1; // scope 1 at $DIR/matches_reduce_branches.rs:51:5: 51:8
|
||||
StorageDead(_1); // scope 0 at $DIR/matches_reduce_branches.rs:52:1: 52:2
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:52:2: 52:2
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -2,110 +2,110 @@
|
|||
+ // MIR for `match_nested_if` after MatchBranchSimplification
|
||||
|
||||
fn match_nested_if() -> bool {
|
||||
let mut _0: bool; // return place in scope 0 at $DIR/matches_reduce_branches.rs:38:25: 38:29
|
||||
let _1: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:39:9: 39:12
|
||||
let mut _2: (); // in scope 0 at $DIR/matches_reduce_branches.rs:39:21: 39:23
|
||||
let mut _3: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
let mut _4: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
let mut _5: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
let mut _6: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:24: 40:28
|
||||
+ let mut _7: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
+ let mut _8: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
+ let mut _9: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ let mut _10: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
let mut _0: bool; // return place in scope 0 at $DIR/matches_reduce_branches.rs:39:25: 39:29
|
||||
let _1: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:40:9: 40:12
|
||||
let mut _2: (); // in scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:23
|
||||
let mut _3: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
let mut _4: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
let mut _5: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
let mut _6: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:24: 41:28
|
||||
+ let mut _7: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
+ let mut _8: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
+ let mut _9: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
+ let mut _10: bool; // in scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
scope 1 {
|
||||
debug val => _1; // in scope 1 at $DIR/matches_reduce_branches.rs:39:9: 39:12
|
||||
debug val => _1; // in scope 1 at $DIR/matches_reduce_branches.rs:40:9: 40:12
|
||||
}
|
||||
|
||||
bb0: {
|
||||
StorageLive(_1); // scope 0 at $DIR/matches_reduce_branches.rs:39:9: 39:12
|
||||
StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:39:21: 39:23
|
||||
StorageLive(_3); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
StorageLive(_4); // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
StorageLive(_5); // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
StorageLive(_6); // scope 0 at $DIR/matches_reduce_branches.rs:40:24: 40:28
|
||||
_6 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:24: 40:28
|
||||
- switchInt(move _6) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
StorageLive(_1); // scope 0 at $DIR/matches_reduce_branches.rs:40:9: 40:12
|
||||
StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:23
|
||||
StorageLive(_3); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
StorageLive(_4); // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
StorageLive(_5); // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
StorageLive(_6); // scope 0 at $DIR/matches_reduce_branches.rs:41:24: 41:28
|
||||
_6 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:41:24: 41:28
|
||||
- switchInt(move _6) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
- }
|
||||
-
|
||||
- bb1: {
|
||||
- _5 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:30: 40:34
|
||||
- goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
- _5 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:41:31: 41:35
|
||||
- goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
- }
|
||||
-
|
||||
- bb2: {
|
||||
- _5 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:40:42: 40:47
|
||||
- goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
- _5 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:41:45: 41:50
|
||||
- goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
- }
|
||||
-
|
||||
- bb3: {
|
||||
+ StorageLive(_7); // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
+ _7 = move _6; // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
+ _5 = Ne(_7, const false); // scope 0 at $DIR/matches_reduce_branches.rs:40:42: 40:47
|
||||
+ StorageDead(_7); // scope 0 at $DIR/matches_reduce_branches.rs:40:21: 40:48
|
||||
StorageDead(_6); // scope 0 at $DIR/matches_reduce_branches.rs:40:47: 40:48
|
||||
- switchInt(move _5) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
+ StorageLive(_7); // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
+ _7 = move _6; // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
+ _5 = Ne(_7, const false); // scope 0 at $DIR/matches_reduce_branches.rs:41:45: 41:50
|
||||
+ StorageDead(_7); // scope 0 at $DIR/matches_reduce_branches.rs:41:21: 41:52
|
||||
StorageDead(_6); // scope 0 at $DIR/matches_reduce_branches.rs:41:51: 41:52
|
||||
- switchInt(move _5) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
- }
|
||||
-
|
||||
- bb4: {
|
||||
- _4 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:50: 40:54
|
||||
- goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
- _4 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:41:55: 41:59
|
||||
- goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
- }
|
||||
-
|
||||
- bb5: {
|
||||
- _4 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:40:62: 40:67
|
||||
- goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
- _4 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:41:69: 41:74
|
||||
- goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
- }
|
||||
-
|
||||
- bb6: {
|
||||
+ StorageLive(_8); // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
+ _8 = move _5; // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
+ _4 = Ne(_8, const false); // scope 0 at $DIR/matches_reduce_branches.rs:40:62: 40:67
|
||||
+ StorageDead(_8); // scope 0 at $DIR/matches_reduce_branches.rs:40:18: 40:68
|
||||
StorageDead(_5); // scope 0 at $DIR/matches_reduce_branches.rs:40:67: 40:68
|
||||
- switchInt(move _4) -> [false: bb8, otherwise: bb7]; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ StorageLive(_8); // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
+ _8 = move _5; // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
+ _4 = Ne(_8, const false); // scope 0 at $DIR/matches_reduce_branches.rs:41:69: 41:74
|
||||
+ StorageDead(_8); // scope 0 at $DIR/matches_reduce_branches.rs:41:18: 41:76
|
||||
StorageDead(_5); // scope 0 at $DIR/matches_reduce_branches.rs:41:75: 41:76
|
||||
- switchInt(move _4) -> [false: bb8, otherwise: bb7]; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
- }
|
||||
-
|
||||
- bb7: {
|
||||
- _3 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:70: 40:74
|
||||
- goto -> bb9; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
- _3 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:42:13: 42:17
|
||||
- goto -> bb9; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
- }
|
||||
-
|
||||
- bb8: {
|
||||
- _3 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:40:82: 40:87
|
||||
- goto -> bb9; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
- _3 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:44:13: 44:18
|
||||
- goto -> bb9; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
- }
|
||||
-
|
||||
- bb9: {
|
||||
+ StorageLive(_9); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ _9 = move _4; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ _3 = Ne(_9, const false); // scope 0 at $DIR/matches_reduce_branches.rs:40:82: 40:87
|
||||
+ StorageDead(_9); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
StorageDead(_4); // scope 0 at $DIR/matches_reduce_branches.rs:40:87: 40:88
|
||||
- switchInt(move _3) -> [false: bb11, otherwise: bb10]; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ StorageLive(_9); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
+ _9 = move _4; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
+ _3 = Ne(_9, const false); // scope 0 at $DIR/matches_reduce_branches.rs:44:13: 44:18
|
||||
+ StorageDead(_9); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
StorageDead(_4); // scope 0 at $DIR/matches_reduce_branches.rs:45:9: 45:10
|
||||
- switchInt(move _3) -> [false: bb11, otherwise: bb10]; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
- }
|
||||
-
|
||||
- bb10: {
|
||||
+ StorageLive(_10); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
+ _10 = move _3; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
StorageDead(_3); // scope 0 at $DIR/matches_reduce_branches.rs:40:95: 40:96
|
||||
- _1 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:40:92: 40:96
|
||||
- goto -> bb12; // scope 0 at $DIR/matches_reduce_branches.rs:39:15: 42:6
|
||||
+ StorageLive(_10); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
+ _10 = move _3; // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
StorageDead(_3); // scope 0 at $DIR/matches_reduce_branches.rs:48:9: 48:10
|
||||
- _1 = const true; // scope 0 at $DIR/matches_reduce_branches.rs:47:13: 47:17
|
||||
- goto -> bb12; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 50:6
|
||||
- }
|
||||
-
|
||||
- bb11: {
|
||||
- StorageDead(_3); // scope 0 at $DIR/matches_reduce_branches.rs:40:95: 40:96
|
||||
- _1 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:41:14: 41:19
|
||||
- goto -> bb12; // scope 0 at $DIR/matches_reduce_branches.rs:39:15: 42:6
|
||||
- StorageDead(_3); // scope 0 at $DIR/matches_reduce_branches.rs:48:9: 48:10
|
||||
- _1 = const false; // scope 0 at $DIR/matches_reduce_branches.rs:49:14: 49:19
|
||||
- goto -> bb12; // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 50:6
|
||||
- }
|
||||
-
|
||||
- bb12: {
|
||||
+ _1 = Ne(_10, const false); // scope 0 at $DIR/matches_reduce_branches.rs:41:14: 41:19
|
||||
+ StorageDead(_10); // scope 0 at $DIR/matches_reduce_branches.rs:40:15: 40:88
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:42:6: 42:7
|
||||
_0 = _1; // scope 1 at $DIR/matches_reduce_branches.rs:43:5: 43:8
|
||||
StorageDead(_1); // scope 0 at $DIR/matches_reduce_branches.rs:44:1: 44:2
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:44:2: 44:2
|
||||
+ _1 = Ne(_10, const false); // scope 0 at $DIR/matches_reduce_branches.rs:49:14: 49:19
|
||||
+ StorageDead(_10); // scope 0 at $DIR/matches_reduce_branches.rs:41:15: 45:10
|
||||
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:50:6: 50:7
|
||||
_0 = _1; // scope 1 at $DIR/matches_reduce_branches.rs:51:5: 51:8
|
||||
StorageDead(_1); // scope 0 at $DIR/matches_reduce_branches.rs:52:1: 52:2
|
||||
return; // scope 0 at $DIR/matches_reduce_branches.rs:52:2: 52:2
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -1,5 +1,6 @@
|
|||
// EMIT_MIR_FOR_EACH_BIT_WIDTH
|
||||
// EMIT_MIR matches_reduce_branches.foo.MatchBranchSimplification.diff
|
||||
// EMIT_MIR matches_reduce_branches.foo.PreCodegen.before.mir
|
||||
// EMIT_MIR matches_reduce_branches.bar.MatchBranchSimplification.diff
|
||||
// EMIT_MIR matches_reduce_branches.match_nested_if.MatchBranchSimplification.diff
|
||||
|
||||
|
@ -37,7 +38,14 @@ fn bar(i: i32) -> (bool, bool, bool, bool) {
|
|||
|
||||
fn match_nested_if() -> bool {
|
||||
let val = match () {
|
||||
() if if if if true {true} else {false} {true} else {false} {true} else {false} => true,
|
||||
() if if if if true { true } else { false } { true } else { false } {
|
||||
true
|
||||
} else {
|
||||
false
|
||||
} =>
|
||||
{
|
||||
true
|
||||
}
|
||||
_ => false,
|
||||
};
|
||||
val
|
||||
|
|
|
@ -1,50 +1,34 @@
|
|||
- // MIR for `opt` before InstCombine
|
||||
+ // MIR for `opt` after InstCombine
|
||||
|
||||
fn opt(_1: Option<()>) -> bool {
|
||||
fn opt(_1: bool) -> u32 {
|
||||
debug x => _1; // in scope 0 at $DIR/not_equal_false.rs:3:8: 3:9
|
||||
let mut _0: bool; // return place in scope 0 at $DIR/not_equal_false.rs:3:26: 3:30
|
||||
let mut _2: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
let mut _3: isize; // in scope 0 at $DIR/not_equal_false.rs:4:17: 4:21
|
||||
let mut _4: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
let mut _5: isize; // in scope 0 at $DIR/not_equal_false.rs:4:38: 4:45
|
||||
let mut _6: isize; // in scope 0 at $DIR/not_equal_false.rs:4:17: 4:21
|
||||
let mut _7: isize; // in scope 0 at $DIR/not_equal_false.rs:4:38: 4:45
|
||||
let mut _8: bool; // in scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
let mut _0: u32; // return place in scope 0 at $DIR/not_equal_false.rs:3:20: 3:23
|
||||
let mut _2: bool; // in scope 0 at $DIR/not_equal_false.rs:4:8: 4:18
|
||||
let mut _3: bool; // in scope 0 at $DIR/not_equal_false.rs:4:8: 4:9
|
||||
|
||||
bb0: {
|
||||
StorageLive(_2); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
_3 = discriminant(_1); // scope 0 at $DIR/not_equal_false.rs:4:17: 4:21
|
||||
StorageLive(_6); // scope 0 at $DIR/not_equal_false.rs:4:17: 4:21
|
||||
_6 = move _3; // scope 0 at $DIR/not_equal_false.rs:4:17: 4:21
|
||||
_2 = Eq(_6, const 0_isize); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
StorageDead(_6); // scope 0 at $DIR/not_equal_false.rs:4:17: 4:21
|
||||
switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
StorageLive(_2); // scope 0 at $DIR/not_equal_false.rs:4:8: 4:18
|
||||
StorageLive(_3); // scope 0 at $DIR/not_equal_false.rs:4:8: 4:9
|
||||
_3 = _1; // scope 0 at $DIR/not_equal_false.rs:4:8: 4:9
|
||||
- _2 = Ne(move _3, const false); // scope 0 at $DIR/not_equal_false.rs:4:8: 4:18
|
||||
+ _2 = move _3; // scope 0 at $DIR/not_equal_false.rs:4:8: 4:18
|
||||
StorageDead(_3); // scope 0 at $DIR/not_equal_false.rs:4:17: 4:18
|
||||
switchInt(move _2) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:35
|
||||
}
|
||||
|
||||
bb1: {
|
||||
_0 = const true; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
goto -> bb3; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
_0 = const 0_u32; // scope 0 at $DIR/not_equal_false.rs:4:21: 4:22
|
||||
goto -> bb3; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:35
|
||||
}
|
||||
|
||||
bb2: {
|
||||
StorageLive(_4); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
_5 = discriminant(_1); // scope 0 at $DIR/not_equal_false.rs:4:38: 4:45
|
||||
StorageLive(_7); // scope 0 at $DIR/not_equal_false.rs:4:38: 4:45
|
||||
_7 = move _5; // scope 0 at $DIR/not_equal_false.rs:4:38: 4:45
|
||||
_4 = Eq(_7, const 1_isize); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
|
||||
StorageDead(_7); // scope 0 at $DIR/not_equal_false.rs:4:38: 4:45
|
||||
StorageLive(_8); // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
_8 = move _4; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
- _0 = Ne(_8, const false); // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
+ _0 = _8; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
StorageDead(_8); // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
goto -> bb3; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:46
|
||||
_0 = const 1_u32; // scope 0 at $DIR/not_equal_false.rs:4:32: 4:33
|
||||
goto -> bb3; // scope 0 at $DIR/not_equal_false.rs:4:5: 4:35
|
||||
}
|
||||
|
||||
bb3: {
|
||||
StorageDead(_4); // scope 0 at $DIR/not_equal_false.rs:4:45: 4:46
|
||||
StorageDead(_2); // scope 0 at $DIR/not_equal_false.rs:4:45: 4:46
|
||||
StorageDead(_2); // scope 0 at $DIR/not_equal_false.rs:4:34: 4:35
|
||||
return; // scope 0 at $DIR/not_equal_false.rs:5:2: 5:2
|
||||
}
|
||||
}
|
||||
|
|
|
@ -1,9 +1,9 @@
|
|||
// EMIT_MIR not_equal_false.opt.InstCombine.diff
|
||||
|
||||
fn opt(x: Option<()>) -> bool {
|
||||
matches!(x, None) || matches!(x, Some(_))
|
||||
fn opt(x: bool) -> u32 {
|
||||
if x != false { 0 } else { 1 }
|
||||
}
|
||||
|
||||
fn main() {
|
||||
opt(None);
|
||||
opt(false);
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue