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author许杰友 Jieyou Xu (Joe) <39484203+jieyouxu@users.noreply.github.com>2024-12-16 01:52:22 +0800
committerGitHub <noreply@github.com>2024-12-16 01:52:22 +0800
commit54e2d3949492cdb68271e74880a6958102c013da (patch)
tree641e319d08b664832a3027dc634e2155690a4ded /compiler/rustc_codegen_llvm/src
parentfdd0eb0e34a843e9a3f8b349000ce6ca5e598ac0 (diff)
parent56b8e66c66206cd4ba0f4cf036cdf3dddb219816 (diff)
downloadrust-54e2d3949492cdb68271e74880a6958102c013da.tar.gz
rust-54e2d3949492cdb68271e74880a6958102c013da.zip
Rollup merge of #134329 - taiki-e:m68k-target-feature, r=workingjubilee
Add m68k_target_feature

This adds the following unstable target features (tracking issue: https://github.com/rust-lang/rust/issues/134328):

- isa-68000
- isa-68010
- isa-68020
- isa-68030
- isa-68040
- isa-68060
- isa-68881
- isa-68882

The feature names and implied features are match with [definitions in LLVM](https://github.com/llvm/llvm-project/blob/llvmorg-19.1.0/llvm/lib/Target/M68k/M68k.td#L21-L57).

isa-68881 and isa-68882 are FPU ISA features.
isa-68881 is needed to support input/output in floating-point regs in inline assembly. isa-68020 is needed to implement https://github.com/taiki-e/atomic-maybe-uninit/pull/28 more robustly.

cc `@glaubitz` `@ricky26` (designated developers  of [m68k-unknown-linux-gnu](https://doc.rust-lang.org/nightly/rustc/platform-support/m68k-unknown-linux-gnu.html#designated-developers))
r? workingjubilee

`@rustbot` label +O-motorola68k +A-target-feature
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