Struct rustc_mir_transform::instcombine::InstCombineContext

struct InstCombineContext<'tcx, 'a> {
    tcx: TyCtxt<'tcx>,
    local_decls: &'a LocalDecls<'tcx>,
}

Fields

tcx: TyCtxt<'tcx>

local_decls: &'a LocalDecls<'tcx>

Implementations

impl<'tcx, 'a> InstCombineContext<'tcx, 'a>

fn should_combine(
    &self,
    source_info: &SourceInfo,
    rvalue: &Rvalue<'tcx>
) -> bool

fn combine_bool_cmp(&self, source_info: &SourceInfo, rvalue: &mut Rvalue<'tcx>)

Transform boolean comparisons into logical operations.

fn try_eval_bool(&self, a: &Operand<'_>) -> Option<bool>

fn combine_ref_deref(&self, source_info: &SourceInfo, rvalue: &mut Rvalue<'tcx>)

Transform “&(*a)” ==> “a”.

fn combine_len(&self, source_info: &SourceInfo, rvalue: &mut Rvalue<'tcx>)

Transform “Len([_; N])” ==> “N”.

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: 16 bytes