Struct rustc_mir_transform::simplify::CfgSimplifier

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

Fields

basic_blocks: &'a mut IndexVec<BasicBlock, BasicBlockData<'tcx>>

pred_count: IndexVec<BasicBlock, u32>

Implementations

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

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

pub fn simplify(self)

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)

fn collapse_goto_chain(&mut self, start: &mut BasicBlock, changed: &mut bool)

Collapse a goto chain starting from start

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

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

fn strip_nops(&mut self)

Layout

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: 32 bytes