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| author | WANG Rui <wangrui@loongson.cn> | 2024-11-20 22:03:20 +0800 |
|---|---|---|
| committer | WANG Rui <wangrui@loongson.cn> | 2024-12-11 17:34:44 +0800 |
| commit | 78f3946ffd44aff5c57baf4192d9adbd70c3f576 (patch) | |
| tree | 3f6027adb90194e085a32733f4469fae8938b933 /compiler/rustc_target | |
| parent | 5a6036a1802262f8cf02192b02026688d396f1d7 (diff) | |
| download | rust-78f3946ffd44aff5c57baf4192d9adbd70c3f576.tar.gz rust-78f3946ffd44aff5c57baf4192d9adbd70c3f576.zip | |
ABI checks: add support for loongarch
LoongArch psABI[^1] specifies that LSX vector types are passed via general-purpose
registers, while LASX vector types are passed indirectly through the stack.
This patch addresses the following warnings:
```
warning: this function call uses a SIMD vector type that is not currently supported with the chosen ABI
--> .../library/core/src/../../stdarch/crates/core_arch/src/loongarch64/lsx/generated.rs:3695:5
|
3695 | __lsx_vreplgr2vr_b(a)
| ^^^^^^^^^^^^^^^^^^^^^ function called here
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #116558 <https://github.com/rust-lang/rust/issues/116558>
= note: `#[warn(abi_unsupported_vector_types)]` on by default
```
[^1]: https://github.com/loongson/la-abi-specs/blob/release/lapcs.adoc
Diffstat (limited to 'compiler/rustc_target')
| -rw-r--r-- | compiler/rustc_target/src/target_features.rs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index 3a130607265..c89045c93e3 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -611,6 +611,8 @@ const HEXAGON_FEATURES_FOR_CORRECT_VECTOR_ABI: &'static [(u64, &'static str)] = &[/*(512, "hvx-length64b"),*/ (1024, "hvx-length128b")]; const MIPS_FEATURES_FOR_CORRECT_VECTOR_ABI: &'static [(u64, &'static str)] = &[(128, "msa")]; const CSKY_FEATURES_FOR_CORRECT_VECTOR_ABI: &'static [(u64, &'static str)] = &[(128, "vdspv1")]; +const LOONGARCH_FEATURES_FOR_CORRECT_VECTOR_ABI: &'static [(u64, &'static str)] = + &[(128, "lsx"), (256, "lasx")]; impl super::spec::Target { pub fn rust_target_features(&self) -> &'static [(&'static str, Stability, ImpliedFeatures)] { @@ -638,7 +640,7 @@ impl super::spec::Target { "aarch64" | "arm64ec" => AARCH64_FEATURES_FOR_CORRECT_VECTOR_ABI, "arm" => ARM_FEATURES_FOR_CORRECT_VECTOR_ABI, "powerpc" | "powerpc64" => POWERPC_FEATURES_FOR_CORRECT_VECTOR_ABI, - "loongarch64" => &[], // on-stack ABI, so we complain about all by-val vectors + "loongarch64" => LOONGARCH_FEATURES_FOR_CORRECT_VECTOR_ABI, "riscv32" | "riscv64" => RISCV_FEATURES_FOR_CORRECT_VECTOR_ABI, "wasm32" | "wasm64" => WASM_FEATURES_FOR_CORRECT_VECTOR_ABI, "s390x" => S390X_FEATURES_FOR_CORRECT_VECTOR_ABI, |