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rust/compiler/rustc_codegen_llvm
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Martin Nordholts 5ad2f434dc rustc_codegen_llvm: Require opt-level >= 1 for index-based loop 
To make debugger stepping intuitive with `-Copt-level=0`. See the
adjusted `basic-stepping.rs` test.

This is kind of a revert of bd0aae92dc, except we don't revert it,
we just make it conditional on `opt-level`. That commit regressed
`basic-stepping.rs`, but it was not noticed since that test did not
exist back then. I have retroactively bisected to find that out.

It seems messy to sprinkle if-cases inside of the
`write_operand_repeatedly()` so make the whole function conditional.

The test that bd0aae92dc added in
`tests/codegen/issues/issue-111603.rs` already use `-Copt-level=3`, so
we don't need to adjust the compiler flags for it to keep passing.
2025-11-13 06:29:55 +01:00
..
src rustc_codegen_llvm: Require opt-level >= 1 for index-based loop 2025-11-13 06:29:55 +01:00
Cargo.toml Make llvm_enzyme a regular cargo feature 2025-09-15 15:31:56 +00:00
messages.ftl Use the object crate rather than LLVM for extracting bitcode sections 2025-07-25 11:21:28 +00:00
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.