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rust/compiler/rustc_codegen_llvm
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Trevor Gross 5e8e46cbd2
Rollup merge of #127506 - liushuyu:s390x-target-features, r=davidtwco 
rustc_target: add known safe s390x target features

This pull request adds known safe target features for s390x (aka IBM Z systems).
Currently, these features are unstable since stabilizing the target features requires submitting proposals.

The `vector` feature was added in IBM Z13 (`arch11`), and this is a SIMD feature for the newer IBM Z systems.
The `backchain` attribute is the IBM Z way of adding frame pointers like unwinding capabilities (the "frame-pointer" switch on IBM Z and IBM POWER platforms will add _emulated_ frame pointers to the binary, which profilers can't use for unwinding the stack).

Both attributes can be applied at the LLVM module or function levels. However, the `backchain` attribute has to be enabled for all the functions in the call stack to get a successful unwind process.
2024-07-22 11:40:19 -05:00
..
src Rollup merge of #127506 - liushuyu:s390x-target-features, r=davidtwco 2024-07-22 11:40:19 -05:00
Cargo.toml sanitizers: Create the rustc_sanitizers crate 2024-04-08 12:05:41 -07:00
messages.ftl Use an error struct instead of a panic 2024-05-15 11:14:45 +02:00
README.md

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.