Struct rustc_mir_transform::simplify::CfgSimplifier

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pub struct CfgSimplifier<'a, 'tcx> {
    basic_blocks: &'a mut IndexSlice<BasicBlock, BasicBlockData<'tcx>>,
    pred_count: IndexVec<BasicBlock, u32>,
}

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§basic_blocks: &'a mut IndexSlice<BasicBlock, BasicBlockData<'tcx>>§pred_count: IndexVec<BasicBlock, u32>

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impl<'a, 'tcx> CfgSimplifier<'a, 'tcx>

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pub fn new(body: &'a mut Body<'tcx>) -> Self

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pub fn simplify(self)

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fn take_terminator_if_simple_goto( &mut self, bb: BasicBlock, ) -> Option<Terminator<'tcx>>

This function will return None if

  • the block has statements
  • the block has a terminator other than goto
  • the block has no terminator (meaning some other part of the current optimization stole it)
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fn collapse_goto_chain(&mut self, start: &mut BasicBlock, changed: &mut bool)

Collapse a goto chain starting from start

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fn merge_successor( &mut self, merged_blocks: &mut Vec<BasicBlock>, terminator: &mut Terminator<'tcx>, ) -> bool

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fn simplify_branch(&mut self, terminator: &mut Terminator<'tcx>) -> bool

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fn strip_nops(&mut self)

Auto Trait Implementations§

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impl<'a, 'tcx> Freeze for CfgSimplifier<'a, 'tcx>

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impl<'a, 'tcx> !RefUnwindSafe for CfgSimplifier<'a, 'tcx>

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impl<'a, 'tcx> !Send for CfgSimplifier<'a, 'tcx>

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impl<'a, 'tcx> !Sync for CfgSimplifier<'a, 'tcx>

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impl<'a, 'tcx> Unpin for CfgSimplifier<'a, 'tcx>

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impl<'a, 'tcx> !UnwindSafe for CfgSimplifier<'a, 'tcx>

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impl<T> Aligned for T

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const ALIGN: Alignment = _

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
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Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 40 bytes