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Remove single use variables

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This commit is contained in:
Paul Trojahn 2021-08-31 15:53:50 +02:00
parent 5998c2e9ad
commit 99a3d64673
1 changed files with 2 additions and 5 deletions
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7
compiler/rustc_middle/src/mir/mod.rs
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@ -412,8 +412,7 @@ pub fn mut_vars_and_args_iter<'a>(&'a self) -> impl Iterator<Item = Local> + 'a
/// 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
@ -422,9 +421,7 @@ pub fn args_iter(&self) -> impl Iterator<Item = Local> + ExactSizeIterator {
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