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| author | Yuki Okushi <huyuumi.dev+love@gmail.com> | 2023-01-10 08:05:33 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-01-10 08:05:33 +0900 |
| commit | 5773e8baf017956849f821d5c85837ca1162b4ae (patch) | |
| tree | 43dd0d1a10081cef97334196ff1b70c312bf36f2 | |
| parent | 002eccc7527c07a0aa89d58d5ef3c981f667b3f4 (diff) | |
| parent | 11331b1030fba551df4c7fc2babd44496040030f (diff) | |
| download | rust-5773e8baf017956849f821d5c85837ca1162b4ae.tar.gz rust-5773e8baf017956849f821d5c85837ca1162b4ae.zip | |
Rollup merge of #105708 - tomerze:enable-atomic-cas-bpf, r=nagisa
Enable atomic cas for bpf targets It seems like LLVM now supports it. https://reviews.llvm.org/D72184 - the PR in LLVM
| -rw-r--r-- | compiler/rustc_target/src/spec/bpf_base.rs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/compiler/rustc_target/src/spec/bpf_base.rs b/compiler/rustc_target/src/spec/bpf_base.rs index baf36587147..2b00cda44b5 100644 --- a/compiler/rustc_target/src/spec/bpf_base.rs +++ b/compiler/rustc_target/src/spec/bpf_base.rs @@ -6,7 +6,7 @@ pub fn opts(endian: Endian) -> TargetOptions { allow_asm: true, endian, linker_flavor: LinkerFlavor::Bpf, - atomic_cas: false, + atomic_cas: true, dynamic_linking: true, no_builtins: true, panic_strategy: PanicStrategy::Abort, @@ -19,6 +19,10 @@ pub fn opts(endian: Endian) -> TargetOptions { obj_is_bitcode: true, requires_lto: false, singlethread: true, + // When targeting the `v3` cpu in llvm, 32-bit atomics are also supported. + // But making this value change based on the target cpu can be mostly confusing + // and would require a bit of a refactor. + min_atomic_width: Some(64), max_atomic_width: Some(64), ..Default::default() } |