rust/compiler/rustc_mir_build
Wesley Wiser 01aec8d185 [mir-opt] Allow debuginfo to be generated for a constant or a Place
Prior to this commit, debuginfo was always generated by mapping a name
to a Place. This has the side-effect that `SimplifyLocals` cannot remove
locals that are only used for debuginfo because their other uses have
been const-propagated.

To allow these locals to be removed, we now allow debuginfo to point to
a constant value. The `ConstProp` pass detects when debuginfo points to
a local with a known constant value and replaces it with the value. This
allows the later `SimplifyLocals` pass to remove the local.
2020-12-06 20:48:25 -05:00
..
src [mir-opt] Allow debuginfo to be generated for a constant or a Place 2020-12-06 20:48:25 -05:00
Cargo.toml mv compiler to compiler/ 2020-08-30 18:45:07 +03:00