Tracking Issue for m68k_target_feature #134328
Labels
A-target-feature
Area: Enabling/disabling target features like AVX, Neon, etc.
C-tracking-issue
Category: An issue tracking the progress of sth. like the implementation of an RFC
O-motorola68k
Target: Rust from the parallel universe where the Amiga won.
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taiki-e
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rustbot
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jieyouxu
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Dec 15, 2024
…kingjubilee Add m68k_target_feature This adds the following unstable target features (tracking issue: rust-lang#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 taiki-e/atomic-maybe-uninit#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
rust-timer
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Dec 15, 2024
Rollup merge of rust-lang#134329 - taiki-e:m68k-target-feature, r=workingjubilee Add m68k_target_feature This adds the following unstable target features (tracking issue: rust-lang#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 taiki-e/atomic-maybe-uninit#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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This is a tracking issue for M68k architecture specific part of #44839 (RFC 2045 (rust-lang/rfcs#2045)).
The feature gate for the issue is
#![feature(m68k_target_feature)].About tracking issues
Tracking issues are used to record the overall progress of implementation.
They are also used as hubs connecting to other relevant issues, e.g., bugs or open design questions.
A tracking issue is however not meant for large scale discussion, questions, or bug reports about a feature.
Instead, open a dedicated issue for the specific matter and add the relevant feature gate label.
Discussion comments will get marked as off-topic or deleted.
Repeated discussions on the tracking issue may lead to the tracking issue getting locked.
Steps
Unresolved Questions
isa-68000is baseline of this architecture, so it may not actually need to be expressed as a target feature.Implementation history
isa-*: Add m68k_target_feature #134329@rustbot label +O-motorola68k +A-target-feature
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