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Remove single use variables #88532

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merged 1 commit into from
Sep 2, 2021
Merged

Remove single use variables #88532

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7 changes: 2 additions & 5 deletions compiler/rustc_middle/src/mir/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -412,8 +412,7 @@ impl<'tcx> Body<'tcx> {
/// Returns an iterator over all function arguments.
#[inline]
pub fn args_iter(&self) -> impl Iterator<Item = Local> + ExactSizeIterator {
let arg_count = self.arg_count;
(1..arg_count + 1).map(Local::new)
(1..self.arg_count + 1).map(Local::new)
}

/// Returns an iterator over all user-defined variables and compiler-generated temporaries (all
Expand All @@ -422,9 +421,7 @@ impl<'tcx> Body<'tcx> {
pub fn vars_and_temps_iter(
&self,
) -> impl DoubleEndedIterator<Item = Local> + ExactSizeIterator {
let arg_count = self.arg_count;
let local_count = self.local_decls.len();
(arg_count + 1..local_count).map(Local::new)
(self.arg_count + 1..self.local_decls.len()).map(Local::new)
}

/// Changes a statement to a nop. This is both faster than deleting instructions and avoids
Expand Down