arm: add unstable soft-float target feature #135203
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Sure. I think we do want the hard-float feature or something close but that's a discussion for later, obviously, @bors r+ rollup |
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…jubilee arm: add unstable soft-float target feature This has an actual usecase as mentioned [here](rust-lang#116344 (comment)), and with my recent ARM float ABI changes there shouldn't be any soundness concerns any more. We will reject enabling this feature on `hf` targets, but disabling it on non-`hf` targets is entirely fine -- the target feature refers to whether softfloat emulation is used for float instructions, and is independent of the ABI which we set separately via `llvm_floatabi`. Cc `@workingjubilee`
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#134389 (Condvar: implement wait_timeout for targets without threads) - rust-lang#134920 (Convert typeck constraints in location-sensitive polonius) - rust-lang#135032 (triagebot: register `relnotes-interest-group` ping group) - rust-lang#135176 (More compelling env_clear() examples) - rust-lang#135184 (Reserve x18 register for aarch64 wrs vxworks target) - rust-lang#135203 (arm: add unstable soft-float target feature) - rust-lang#135219 (warn about broken simd not only on structs but also enums and unions when we didn't opt in to it) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup of 7 pull requests Successful merges: - rust-lang#134389 (Condvar: implement wait_timeout for targets without threads) - rust-lang#134920 (Convert typeck constraints in location-sensitive polonius) - rust-lang#135032 (triagebot: register `relnotes-interest-group` ping group) - rust-lang#135176 (More compelling env_clear() examples) - rust-lang#135184 (Reserve x18 register for aarch64 wrs vxworks target) - rust-lang#135203 (arm: add unstable soft-float target feature) - rust-lang#135219 (warn about broken simd not only on structs but also enums and unions when we didn't opt in to it) r? `@ghost` `@rustbot` modify labels: rollup try-job: i686-mingw
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Rollup of 8 pull requests Successful merges: - rust-lang#133057 (Impl String::into_chars) - rust-lang#134389 (Condvar: implement wait_timeout for targets without threads) - rust-lang#134920 (Convert typeck constraints in location-sensitive polonius) - rust-lang#135032 (triagebot: register `relnotes-interest-group` ping group) - rust-lang#135176 (More compelling env_clear() examples) - rust-lang#135184 (Reserve x18 register for aarch64 wrs vxworks target) - rust-lang#135203 (arm: add unstable soft-float target feature) - rust-lang#135219 (warn about broken simd not only on structs but also enums and unions when we didn't opt in to it) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#135203 - RalfJung:arm-soft-float, r=workingjubilee arm: add unstable soft-float target feature This has an actual usecase as mentioned [here](rust-lang#116344 (comment)), and with my recent ARM float ABI changes there shouldn't be any soundness concerns any more. We will reject enabling this feature on `hf` targets, but disabling it on non-`hf` targets is entirely fine -- the target feature refers to whether softfloat emulation is used for float instructions, and is independent of the ABI which we set separately via `llvm_floatabi`. Cc ``@workingjubilee``
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This has an actual usecase as mentioned here, and with my recent ARM float ABI changes there shouldn't be any soundness concerns any more. We will reject enabling this feature on
hftargets, but disabling it on non-hftargets is entirely fine -- the target feature refers to whether softfloat emulation is used for float instructions, and is independent of the ABI which we set separately viallvm_floatabi.Cc @workingjubilee