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761e888485
rust/compiler/rustc_codegen_llvm
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bors 761e888485 Auto merge of #93516 - nagisa:branch-protection, r=cjgillot 
No branch protection metadata unless enabled

Even if we emit metadata disabling branch protection, this metadata may
conflict with other modules (e.g. during LTO) that have different branch
protection metadata set.

This is an unstable flag and feature, so ideally the flag not being
specified should act as if the feature wasn't implemented in the first
place.

Additionally this PR also ensures we emit an error if
`-Zbranch-protection` is set on targets other than the supported
aarch64. For now the error is being output from codegen, but ideally it
should be moved to earlier in the pipeline before stabilization.
2022-02-26 21:53:03 +00:00
..
src Auto merge of #93516 - nagisa:branch-protection, r=cjgillot 2022-02-26 21:53:03 +00:00
Cargo.toml debuginfo: Simplify TypeMap used during LLVM debuginfo generation. 2022-02-21 13:03:36 +01:00
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.