Set max_atomic_width for sparc-unknown-linux-gnu to 32 #114496
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…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#113568 (Fix spurious test failure with `panic=abort`) - rust-lang#114196 (Bubble up nested goals from equation in `predicates_for_object_candidate`) - rust-lang#114485 (Add trait decls to SMIR) - rust-lang#114495 (Set max_atomic_width for AVR to 16) - rust-lang#114496 (Set max_atomic_width for sparc-unknown-linux-gnu to 32) - rust-lang#114510 (llvm-wrapper: adapt for LLVM API changes) - rust-lang#114562 (stabilize abi_thiscall) - rust-lang#114570 ([miri][typo] Fix a typo in a vector_block comment.) - rust-lang#114573 (CI: do not hide error logs in a group) r? `@ghost` `@rustbot` modify labels: rollup
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This is currently set to 64
rust/compiler/rustc_target/src/spec/sparc_unknown_linux_gnu.rs
Line 8 in 90f0b24
However, AFAIK, this architecture doesn't support 64-bit atomics, and LLVM generates libcalls: https://godbolt.org/z/chzThWGG1
(Currently, attempts to run
cargo testfor this target result in "undefined reference to `__sync_val_compare_and_swap_8'" error. taiki-e/rust-cross-toolchain@02efe1e)r? @Amanieu