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01aec8d185
rust/compiler/rustc_codegen_llvm
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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 Upgrade to measureme 9.0.0 2020-10-24 22:39:42 -04:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

The codegen crate contains the code to convert from MIR into LLVM IR, and then from LLVM IR into machine code. In general it contains code that runs towards the end of the compilation process.

For more information about how codegen works, see the rustc dev guide.