std: Enable atomic.fence emission on wasm32 #73036
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This commit removes the `#[cfg]` guards in `atomic::fence` on wasm targets. Since these guards were originally added the upstream wasm specification for threads gained an `atomic.fence` instruction, so LLVM no longer panics on these intrinsics. Although there aren't a ton of tests in-repo for this right now I've tested locally and all of these fences generate `atomic.fence` instructions in wasm. Closes rust-lang#72997
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I suppose adding codegen tests for intrinsics doesn't seem to make that much sense, and it seems like this is the obvious thing to do. @bors r+ |
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📌 Commit 05b2d3f has been approved by |
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This can close #65687 also, right? |
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Indeed! |
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Jun 11, 2020
Rollup of 7 pull requests Successful merges: - rust-lang#73033 (Fix #[thread_local] statics as asm! sym operands) - rust-lang#73036 (std: Enable atomic.fence emission on wasm32) - rust-lang#73163 (Add long error explanation for E0724) - rust-lang#73187 (Remove missed `cfg(bootstrap)`) - rust-lang#73195 (Provide suggestion to convert numeric op LHS rather than unwrapping RHS) - rust-lang#73247 (Add various Zulip notifications for prioritization) - rust-lang#73254 (Add comment about LocalDefId -> DefId) Failed merges: r? @ghost
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This commit removes the
#[cfg]guards inatomic::fenceon wasmtargets. Since these guards were originally added the upstream wasm
specification for threads gained an
atomic.fenceinstruction, so LLVMno longer panics on these intrinsics.
Although there aren't a ton of tests in-repo for this right now I've
tested locally and all of these fences generate
atomic.fenceinstructions in wasm.
Closes #65687
Closes #72997