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Matthias Krüger 379b22123c
Rollup merge of #131586 - taiki-e:s390x-vector-abi, r=compiler-errors,uweigand 
Support s390x z13 vector ABI

cc #130869

This resolves the following fixmes:
- 58420a065b/compiler/rustc_target/src/abi/call/s390x.rs (L1-L2)
- 58420a065b/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs (L9-L11)

Refs: Section 1.2.3 "Parameter Passing" and section 1.2.5 "Return Values" in ELF Application Binary Interface s390x Supplement, Version 1.6.1 (lzsabi_s390x.pdf in https://github.com/IBM/s390x-abi/releases/tag/v1.6.1)

This PR extends ~~https://github.com/rust-lang/rust/pull/127731~~ https://github.com/rust-lang/rust/pull/132173 (merged) 's ABI check to handle cases where `vector` target feature is disabled.
If we do not do ABI check, we run into the ABI problems as described in https://github.com/rust-lang/rust/issues/116558 and https://github.com/rust-lang/rust/issues/130869#issuecomment-2408268044, and the problem of the compiler generating strange code (https://github.com/rust-lang/rust/pull/131586#discussion_r1799003554).

cc `@uweigand`

`@rustbot` label +O-SystemZ +A-ABI
2024-11-21 11:58:38 +01:00
..
src Rollup merge of #131586 - taiki-e:s390x-vector-abi, r=compiler-errors,uweigand 2024-11-21 11:58:38 +01:00
Cargo.toml Remove unused intercrate dependencies 2024-11-07 14:17:16 +00:00
README.md Fix outdated crate names in compiler docs 2021-04-08 11:12:14 -05:00

README.md

rustc_target contains some very low-level details that are specific to different compilation targets and so forth.

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