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e61dcc7a0a
rust/compiler/rustc_codegen_llvm
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bors e61dcc7a0a Auto merge of #122220 - saethlin:ppc-can-into-atomicptr, r=oli-obk 
Only generate a ptrtoint in AtomicPtr codegen when absolutely necessary

This special case was added in this PR: https://github.com/rust-lang/rust/pull/77611 in response to this error message:
```
Intrinsic has incorrect argument type!
void ({}*)* `@llvm.ppc.cfence.p0sl_s`
in function rust_oom
LLVM ERROR: Broken function found, compilation aborted!
[RUSTC-TIMING] std test:false 20.161
error: could not compile `std`
```
But when I tried searching for more information about that intrinsic I found this: https://github.com/llvm/llvm-project/issues/55983 which is a report of someone hitting this same error and a fix was landed in LLVM, 2 years after the above Rust PR.
2024-03-13 00:03:50 +00:00
..
src Auto merge of #122220 - saethlin:ppc-can-into-atomicptr, r=oli-obk 2024-03-13 00:03:50 +00:00
Cargo.toml bump itertools to 0.12 2024-03-08 12:34:05 +03:00
messages.ftl Emit a diagnostic for invalid target options 2024-02-03 22:03:25 -05:00
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.