rust/src/test/mir-opt/const_debuginfo.main.ConstDebugInfo.diff, branch 1.55.0 https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=1.55.0 2021-05-17T11:30:25+00:00 mir-opt bless for Size field being removed from Allocation 2021-05-17T11:30:25+00:00 Ralf Jung post@ralfj.de 2021-05-16T17:44:19+00:00 urn:sha1:5d71c67423f32a091b8632ed4f533d5dacd4e67f bless tests 2021-03-16T01:58:54+00:00 Erik Desjardins erikdesjardins@users.noreply.github.com 2021-03-16T01:58:54+00:00 urn:sha1:90562b401ee63d05d2c96bb2240074dd528d9371 [mir-opt] Allow debuginfo to be generated for a constant or a Place 2020-12-07T01:48:25+00:00 Wesley Wiser wwiser@gmail.com 2020-05-30T19:02:32+00:00 urn:sha1:01aec8d18556be5e8d498c2f331b9015b7befde2 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.