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Allow atomic operations up to 32 bits #44978

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Oct 8, 2017
Merged

Allow atomic operations up to 32 bits #44978

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8 changes: 6 additions & 2 deletions src/librustc_back/target/armv5te_unknown_linux_gnueabi.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -27,8 +27,12 @@ pub fn target() -> TargetResult {

options: TargetOptions {
features: "+soft-float,+strict-align".to_string(),
// No atomic instructions on ARMv5
max_atomic_width: Some(0),

// Atomic operations provided when linked with libgcc.
// FIXME: If the following PR is merged, the atomic operations would be
// provided by compiler-builtins instead with no change of behavior:
// https://github.com/rust-lang-nursery/compiler-builtins/pull/115/files
max_atomic_width: Some(32),
abi_blacklist: super::arm_base::abi_blacklist(),
.. base
}
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