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| author | Tsukasa OI <floss_rust@irq.a4lg.com> | 2025-04-30 05:48:51 +0000 |
|---|---|---|
| committer | Tsukasa OI <floss_rust@irq.a4lg.com> | 2025-05-01 00:09:45 +0000 |
| commit | adb92aeb4a1f6cd8313fa880c19a39a8caefbded (patch) | |
| tree | 7b8df36862af8d0e2f274aed43ae5da71b46f523 | |
| parent | b45dd71d1824f176fba88f6c40467030a16afa2c (diff) | |
| download | rust-adb92aeb4a1f6cd8313fa880c19a39a8caefbded.tar.gz rust-adb92aeb4a1f6cd8313fa880c19a39a8caefbded.zip | |
rustc_target: Adjust RISC-V feature implication (Za64rs and Za128rs)
The Za64rs extension (reservation set -- a primitive memory unit of LR/SC atomic operations -- is naturally aligned and *at most* 64 bytes) is a superset of the Za128rs extension (*at most* 128 bytes; note that smaller the reservation set is, more fine grained control over atomics). This commit handles this as a feature implication.
| -rw-r--r-- | compiler/rustc_target/src/target_features.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index 69c8b9119ab..9031e0530c5 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -507,7 +507,7 @@ static RISCV_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ ("unaligned-vector-mem", Unstable(sym::riscv_target_feature), &[]), ("v", Unstable(sym::riscv_target_feature), &["zvl128b", "zve64d"]), ("za128rs", Unstable(sym::riscv_target_feature), &[]), - ("za64rs", Unstable(sym::riscv_target_feature), &[]), + ("za64rs", Unstable(sym::riscv_target_feature), &["za128rs"]), // Za64rs ⊃ Za128rs ("zaamo", Unstable(sym::riscv_target_feature), &[]), ("zabha", Unstable(sym::riscv_target_feature), &["zaamo"]), ("zacas", Unstable(sym::riscv_target_feature), &["zaamo"]), |