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Auto merge of #117915 - matthiaskrgr:rollup-ztljqrr, r=matthiaskrgr

Browse Source 
Rollup of 5 pull requests

Successful merges:

 - #116244 (Apply structured suggestion that allows test to work since 1.64)
 - #117686 (Build pre-coroutine-transform coroutine body on error)
 - #117834 (target_feature: make it more clear what that 'Option' means)
 - #117893 (Suggest dereferencing the LHS for binops such as `&T == T`)
 - #117911 (Fix some typos)

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2023-11-14 22:36:39 +00:00
commit 003fa886f5
23 changed files with 404 additions and 291 deletions
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2
compiler/rustc_codegen_gcc/src/lib.rs
View File

@ -384,7 +384,7 @@ pub fn target_features(sess: &Session, allow_unstable: bool, target_info: &Locke
.iter()
.filter_map(
|&(feature, gate)| {
if sess.is_nightly_build() || allow_unstable || gate.is_none() { Some(feature) } else { None }
if sess.is_nightly_build() || allow_unstable || gate.is_stable() { Some(feature) } else { None }
},
)
.filter(|_feature| {

2
compiler/rustc_codegen_llvm/src/callee.rs
View File

@ -59,7 +59,7 @@ pub fn get_fn<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, instance: Instance<'tcx>) ->
// To avoid this, we set the Storage Class to "DllImport" so that
// LLVM will prefix the name with `__imp_`. Ideally, we'd like the
// existing logic below to set the Storage Class, but it has an
// exemption for MinGW for backwards compatability.
// exemption for MinGW for backwards compatibility.
let llfn = cx.declare_fn(
&common::i686_decorated_name(
&dllimport,

5
compiler/rustc_codegen_llvm/src/llvm_util.rs
View File

@ -293,7 +293,7 @@ pub fn target_features(sess: &Session, allow_unstable: bool) -> Vec<Symbol> {
supported_target_features(sess)
.iter()
.filter_map(|&(feature, gate)| {
if sess.is_nightly_build() || allow_unstable || gate.is_none() {
if sess.is_nightly_build() || allow_unstable || gate.is_stable() {
Some(feature)
} else {
None
@ -554,7 +554,8 @@ pub(crate) fn global_llvm_features(sess: &Session, diagnostics: bool) -> Vec<Str
UnknownCTargetFeature { feature, rust_feature: PossibleFeature::None }
};
sess.emit_warning(unknown_feature);
} else if feature_state.is_some_and(|(_name, feature_gate)| feature_gate.is_some())
} else if feature_state
.is_some_and(|(_name, feature_gate)| !feature_gate.is_stable())
{
// An unstable feature. Warn about using it.
sess.emit_warning(UnstableCTargetFeature { feature });

519
compiler/rustc_codegen_ssa/src/target_features.rs
View File

@ -19,10 +19,44 @@ use rustc_span::Span;
/// Features that control behaviour of rustc, rather than the codegen.
pub const RUSTC_SPECIFIC_FEATURES: &[&str] = &["crt-static"];
/// Stability information for target features.
#[derive(Debug, Clone, Copy)]
pub enum Stability {
/// This target feature is stable, it can be used in `#[target_feature]` and
/// `#[cfg(target_feature)]`.
Stable,
/// This target feature is unstable; using it in `#[target_feature]` or `#[cfg(target_feature)]`
/// requires enabling the given nightly feature.
Unstable(Symbol),
}
use Stability::*;
impl Stability {
fn as_feature_name(self) -> Option<Symbol> {
match self {
Stable => None,
Unstable(s) => Some(s),
}
}
pub fn is_stable(self) -> bool {
matches!(self, Stable)
}
}
// Here we list target features that rustc "understands": they can be used in `#[target_feature]`
// and `#[cfg(target_feature)]`. They also do not trigger any warnings when used with
// `-Ctarget-feature`.
//
// When adding features to the below lists
// check whether they're named already elsewhere in rust
// e.g. in stdarch and whether the given name matches LLVM's
// if it doesn't, to_llvm_feature in llvm_util in rustc_codegen_llvm needs to be adapted
// if it doesn't, to_llvm_feature in llvm_util in rustc_codegen_llvm needs to be adapted.
//
// Also note that all target features listed here must be purely additive: for target_feature 1.1 to
// be sound, we can never allow features like `+soft-float` (on x86) to be controlled on a
// per-function level, since we would then allow safe calls from functions with `+soft-float` to
// functions without that feature!
//
// When adding a new feature, be particularly mindful of features that affect function ABIs. Those
// need to be treated very carefully to avoid introducing unsoundness! This often affects features
@ -30,139 +64,138 @@ pub const RUSTC_SPECIFIC_FEATURES: &[&str] = &["crt-static"];
// example of this going wrong), but features enabling new SIMD registers are also a concern (see
// https://github.com/rust-lang/rust/issues/116558 for an example of this going wrong).
//
// Stabilizing a target feature (setting the 2nd component of the pair to `None`) requires t-lang
// approval.
// Stabilizing a target feature requires t-lang approval.
const ARM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const ARM_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("aclass", Some(sym::arm_target_feature)),
("aes", Some(sym::arm_target_feature)),
("crc", Some(sym::arm_target_feature)),
("d32", Some(sym::arm_target_feature)),
("dotprod", Some(sym::arm_target_feature)),
("dsp", Some(sym::arm_target_feature)),
("fp-armv8", Some(sym::arm_target_feature)),
("i8mm", Some(sym::arm_target_feature)),
("mclass", Some(sym::arm_target_feature)),
("neon", Some(sym::arm_target_feature)),
("rclass", Some(sym::arm_target_feature)),
("sha2", Some(sym::arm_target_feature)),
("aclass", Unstable(sym::arm_target_feature)),
("aes", Unstable(sym::arm_target_feature)),
("crc", Unstable(sym::arm_target_feature)),
("d32", Unstable(sym::arm_target_feature)),
("dotprod", Unstable(sym::arm_target_feature)),
("dsp", Unstable(sym::arm_target_feature)),
("fp-armv8", Unstable(sym::arm_target_feature)),
("i8mm", Unstable(sym::arm_target_feature)),
("mclass", Unstable(sym::arm_target_feature)),
("neon", Unstable(sym::arm_target_feature)),
("rclass", Unstable(sym::arm_target_feature)),
("sha2", Unstable(sym::arm_target_feature)),
// This is needed for inline assembly, but shouldn't be stabilized as-is
// since it should be enabled per-function using #[instruction_set], not
// #[target_feature].
("thumb-mode", Some(sym::arm_target_feature)),
("thumb2", Some(sym::arm_target_feature)),
("trustzone", Some(sym::arm_target_feature)),
("v5te", Some(sym::arm_target_feature)),
("v6", Some(sym::arm_target_feature)),
("v6k", Some(sym::arm_target_feature)),
("v6t2", Some(sym::arm_target_feature)),
("v7", Some(sym::arm_target_feature)),
("v8", Some(sym::arm_target_feature)),
("vfp2", Some(sym::arm_target_feature)),
("vfp3", Some(sym::arm_target_feature)),
("vfp4", Some(sym::arm_target_feature)),
("virtualization", Some(sym::arm_target_feature)),
("thumb-mode", Unstable(sym::arm_target_feature)),
("thumb2", Unstable(sym::arm_target_feature)),
("trustzone", Unstable(sym::arm_target_feature)),
("v5te", Unstable(sym::arm_target_feature)),
("v6", Unstable(sym::arm_target_feature)),
("v6k", Unstable(sym::arm_target_feature)),
("v6t2", Unstable(sym::arm_target_feature)),
("v7", Unstable(sym::arm_target_feature)),
("v8", Unstable(sym::arm_target_feature)),
("vfp2", Unstable(sym::arm_target_feature)),
("vfp3", Unstable(sym::arm_target_feature)),
("vfp4", Unstable(sym::arm_target_feature)),
("virtualization", Unstable(sym::arm_target_feature)),
// tidy-alphabetical-end
];
const AARCH64_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const AARCH64_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
// FEAT_AES
("aes", None),
("aes", Stable),
// FEAT_BF16
("bf16", None),
("bf16", Stable),
// FEAT_BTI
("bti", None),
("bti", Stable),
// FEAT_CRC
("crc", None),
("crc", Stable),
// FEAT_DIT
("dit", None),
("dit", Stable),
// FEAT_DotProd
("dotprod", None),
("dotprod", Stable),
// FEAT_DPB
("dpb", None),
("dpb", Stable),
// FEAT_DPB2
("dpb2", None),
("dpb2", Stable),
// FEAT_F32MM
("f32mm", None),
("f32mm", Stable),
// FEAT_F64MM
("f64mm", None),
("f64mm", Stable),
// FEAT_FCMA
("fcma", None),
("fcma", Stable),
// FEAT_FHM
("fhm", None),
("fhm", Stable),
// FEAT_FLAGM
("flagm", None),
("flagm", Stable),
// FEAT_FP16
("fp16", None),
("fp16", Stable),
// FEAT_FRINTTS
("frintts", None),
("frintts", Stable),
// FEAT_I8MM
("i8mm", None),
("i8mm", Stable),
// FEAT_JSCVT
("jsconv", None),
("jsconv", Stable),
// FEAT_LOR
("lor", None),
("lor", Stable),
// FEAT_LSE
("lse", None),
("lse", Stable),
// FEAT_MTE
("mte", None),
("mte", Stable),
// FEAT_AdvSimd & FEAT_FP
("neon", None),
("neon", Stable),
// FEAT_PAUTH (address authentication)
("paca", None),
("paca", Stable),
// FEAT_PAUTH (generic authentication)
("pacg", None),
("pacg", Stable),
// FEAT_PAN
("pan", None),
("pan", Stable),
// FEAT_PMUv3
("pmuv3", None),
("pmuv3", Stable),
// FEAT_RAND
("rand", None),
("rand", Stable),
// FEAT_RAS
("ras", None),
("ras", Stable),
// FEAT_RCPC
("rcpc", None),
("rcpc", Stable),
// FEAT_RCPC2
("rcpc2", None),
("rcpc2", Stable),
// FEAT_RDM
("rdm", None),
("rdm", Stable),
// FEAT_SB
("sb", None),
("sb", Stable),
// FEAT_SHA1 & FEAT_SHA256
("sha2", None),
("sha2", Stable),
// FEAT_SHA512 & FEAT_SHA3
("sha3", None),
("sha3", Stable),
// FEAT_SM3 & FEAT_SM4
("sm4", None),
("sm4", Stable),
// FEAT_SPE
("spe", None),
("spe", Stable),
// FEAT_SSBS
("ssbs", None),
("ssbs", Stable),
// FEAT_SVE
("sve", None),
("sve", Stable),
// FEAT_SVE2
("sve2", None),
("sve2", Stable),
// FEAT_SVE2_AES
("sve2-aes", None),
("sve2-aes", Stable),
// FEAT_SVE2_BitPerm
("sve2-bitperm", None),
("sve2-bitperm", Stable),
// FEAT_SVE2_SHA3
("sve2-sha3", None),
("sve2-sha3", Stable),
// FEAT_SVE2_SM4
("sve2-sm4", None),
("sve2-sm4", Stable),
// FEAT_TME
("tme", None),
("v8.1a", Some(sym::aarch64_ver_target_feature)),
("v8.2a", Some(sym::aarch64_ver_target_feature)),
("v8.3a", Some(sym::aarch64_ver_target_feature)),
("v8.4a", Some(sym::aarch64_ver_target_feature)),
("v8.5a", Some(sym::aarch64_ver_target_feature)),
("v8.6a", Some(sym::aarch64_ver_target_feature)),
("v8.7a", Some(sym::aarch64_ver_target_feature)),
("tme", Stable),
("v8.1a", Unstable(sym::aarch64_ver_target_feature)),
("v8.2a", Unstable(sym::aarch64_ver_target_feature)),
("v8.3a", Unstable(sym::aarch64_ver_target_feature)),
("v8.4a", Unstable(sym::aarch64_ver_target_feature)),
("v8.5a", Unstable(sym::aarch64_ver_target_feature)),
("v8.6a", Unstable(sym::aarch64_ver_target_feature)),
("v8.7a", Unstable(sym::aarch64_ver_target_feature)),
// FEAT_VHE
("vh", None),
("vh", Stable),
// tidy-alphabetical-end
];
@ -170,197 +203,197 @@ const AARCH64_TIED_FEATURES: &[&[&str]] = &[
&["paca", "pacg"], // Together these represent `pauth` in LLVM
];
const X86_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const X86_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("adx", None),
("aes", None),
("avx", None),
("avx2", None),
("avx512bf16", Some(sym::avx512_target_feature)),
("avx512bitalg", Some(sym::avx512_target_feature)),
("avx512bw", Some(sym::avx512_target_feature)),
("avx512cd", Some(sym::avx512_target_feature)),
("avx512dq", Some(sym::avx512_target_feature)),
("avx512er", Some(sym::avx512_target_feature)),
("avx512f", Some(sym::avx512_target_feature)),
("avx512ifma", Some(sym::avx512_target_feature)),
("avx512pf", Some(sym::avx512_target_feature)),
("avx512vbmi", Some(sym::avx512_target_feature)),
("avx512vbmi2", Some(sym::avx512_target_feature)),
("avx512vl", Some(sym::avx512_target_feature)),
("avx512vnni", Some(sym::avx512_target_feature)),
("avx512vp2intersect", Some(sym::avx512_target_feature)),
("avx512vpopcntdq", Some(sym::avx512_target_feature)),
("bmi1", None),
("bmi2", None),
("cmpxchg16b", None),
("ermsb", Some(sym::ermsb_target_feature)),
("f16c", None),
("fma", None),
("fxsr", None),
("gfni", Some(sym::avx512_target_feature)),
("lzcnt", None),
("movbe", None),
("pclmulqdq", None),
("popcnt", None),
("rdrand", None),
("rdseed", None),
("rtm", Some(sym::rtm_target_feature)),
("sha", None),
("sse", None),
("sse2", None),
("sse3", None),
("sse4.1", None),
("sse4.2", None),
("sse4a", Some(sym::sse4a_target_feature)),
("ssse3", None),
("tbm", Some(sym::tbm_target_feature)),
("vaes", Some(sym::avx512_target_feature)),
("vpclmulqdq", Some(sym::avx512_target_feature)),
("xsave", None),
("xsavec", None),
("xsaveopt", None),
("xsaves", None),
("adx", Stable),
("aes", Stable),
("avx", Stable),
("avx2", Stable),
("avx512bf16", Unstable(sym::avx512_target_feature)),
("avx512bitalg", Unstable(sym::avx512_target_feature)),
("avx512bw", Unstable(sym::avx512_target_feature)),
("avx512cd", Unstable(sym::avx512_target_feature)),
("avx512dq", Unstable(sym::avx512_target_feature)),
("avx512er", Unstable(sym::avx512_target_feature)),
("avx512f", Unstable(sym::avx512_target_feature)),
("avx512ifma", Unstable(sym::avx512_target_feature)),
("avx512pf", Unstable(sym::avx512_target_feature)),
("avx512vbmi", Unstable(sym::avx512_target_feature)),
("avx512vbmi2", Unstable(sym::avx512_target_feature)),
("avx512vl", Unstable(sym::avx512_target_feature)),
("avx512vnni", Unstable(sym::avx512_target_feature)),
("avx512vp2intersect", Unstable(sym::avx512_target_feature)),
("avx512vpopcntdq", Unstable(sym::avx512_target_feature)),
("bmi1", Stable),
("bmi2", Stable),
("cmpxchg16b", Stable),
("ermsb", Unstable(sym::ermsb_target_feature)),
("f16c", Stable),
("fma", Stable),
("fxsr", Stable),
("gfni", Unstable(sym::avx512_target_feature)),
("lzcnt", Stable),
("movbe", Stable),
("pclmulqdq", Stable),
("popcnt", Stable),
("rdrand", Stable),
("rdseed", Stable),
("rtm", Unstable(sym::rtm_target_feature)),
("sha", Stable),
("sse", Stable),
("sse2", Stable),
("sse3", Stable),
("sse4.1", Stable),
("sse4.2", Stable),
("sse4a", Unstable(sym::sse4a_target_feature)),
("ssse3", Stable),
("tbm", Unstable(sym::tbm_target_feature)),
("vaes", Unstable(sym::avx512_target_feature)),
("vpclmulqdq", Unstable(sym::avx512_target_feature)),
("xsave", Stable),
("xsavec", Stable),
("xsaveopt", Stable),
("xsaves", Stable),
// tidy-alphabetical-end
];
const HEXAGON_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const HEXAGON_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("hvx", Some(sym::hexagon_target_feature)),
("hvx-length128b", Some(sym::hexagon_target_feature)),
("hvx", Unstable(sym::hexagon_target_feature)),
("hvx-length128b", Unstable(sym::hexagon_target_feature)),
// tidy-alphabetical-end
];
const POWERPC_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const POWERPC_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("altivec", Some(sym::powerpc_target_feature)),
("power10-vector", Some(sym::powerpc_target_feature)),
("power8-altivec", Some(sym::powerpc_target_feature)),
("power8-vector", Some(sym::powerpc_target_feature)),
("power9-altivec", Some(sym::powerpc_target_feature)),
("power9-vector", Some(sym::powerpc_target_feature)),
("vsx", Some(sym::powerpc_target_feature)),
("altivec", Unstable(sym::powerpc_target_feature)),
("power10-vector", Unstable(sym::powerpc_target_feature)),
("power8-altivec", Unstable(sym::powerpc_target_feature)),
("power8-vector", Unstable(sym::powerpc_target_feature)),
("power9-altivec", Unstable(sym::powerpc_target_feature)),
("power9-vector", Unstable(sym::powerpc_target_feature)),
("vsx", Unstable(sym::powerpc_target_feature)),
// tidy-alphabetical-end
];
const MIPS_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const MIPS_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("fp64", Some(sym::mips_target_feature)),
("msa", Some(sym::mips_target_feature)),
("virt", Some(sym::mips_target_feature)),
("fp64", Unstable(sym::mips_target_feature)),
("msa", Unstable(sym::mips_target_feature)),
("virt", Unstable(sym::mips_target_feature)),
// tidy-alphabetical-end
];
const RISCV_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const RISCV_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("a", None),
("c", None),
("d", Some(sym::riscv_target_feature)),
("e", Some(sym::riscv_target_feature)),
("f", Some(sym::riscv_target_feature)),
("m", None),
("relax", Some(sym::riscv_target_feature)),
("unaligned-scalar-mem", Some(sym::riscv_target_feature)),
("v", Some(sym::riscv_target_feature)),
("zba", None),
("zbb", None),
("zbc", None),
("zbkb", None),
("zbkc", None),
("zbkx", None),
("zbs", None),
("zdinx", Some(sym::riscv_target_feature)),
("zfh", Some(sym::riscv_target_feature)),
("zfhmin", Some(sym::riscv_target_feature)),
("zfinx", Some(sym::riscv_target_feature)),
("zhinx", Some(sym::riscv_target_feature)),
("zhinxmin", Some(sym::riscv_target_feature)),
("zk", None),
("zkn", None),
("zknd", None),
("zkne", None),
("zknh", None),
("zkr", None),
("zks", None),
("zksed", None),
("zksh", None),
("zkt", None),
("a", Stable),
("c", Stable),
("d", Unstable(sym::riscv_target_feature)),
("e", Unstable(sym::riscv_target_feature)),
("f", Unstable(sym::riscv_target_feature)),
("m", Stable),
("relax", Unstable(sym::riscv_target_feature)),
("unaligned-scalar-mem", Unstable(sym::riscv_target_feature)),
("v", Unstable(sym::riscv_target_feature)),
("zba", Stable),
("zbb", Stable),
("zbc", Stable),
("zbkb", Stable),
("zbkc", Stable),
("zbkx", Stable),
("zbs", Stable),
("zdinx", Unstable(sym::riscv_target_feature)),
("zfh", Unstable(sym::riscv_target_feature)),
("zfhmin", Unstable(sym::riscv_target_feature)),
("zfinx", Unstable(sym::riscv_target_feature)),
("zhinx", Unstable(sym::riscv_target_feature)),
("zhinxmin", Unstable(sym::riscv_target_feature)),
("zk", Stable),
("zkn", Stable),
("zknd", Stable),
("zkne", Stable),
("zknh", Stable),
("zkr", Stable),
("zks", Stable),
("zksed", Stable),
("zksh", Stable),
("zkt", Stable),
// tidy-alphabetical-end
];
const WASM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const WASM_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("atomics", Some(sym::wasm_target_feature)),
("bulk-memory", Some(sym::wasm_target_feature)),
("exception-handling", Some(sym::wasm_target_feature)),
("multivalue", Some(sym::wasm_target_feature)),
("mutable-globals", Some(sym::wasm_target_feature)),
("nontrapping-fptoint", Some(sym::wasm_target_feature)),
("reference-types", Some(sym::wasm_target_feature)),
("relaxed-simd", Some(sym::wasm_target_feature)),
("sign-ext", Some(sym::wasm_target_feature)),
("simd128", None),
("atomics", Unstable(sym::wasm_target_feature)),
("bulk-memory", Unstable(sym::wasm_target_feature)),
("exception-handling", Unstable(sym::wasm_target_feature)),
("multivalue", Unstable(sym::wasm_target_feature)),
("mutable-globals", Unstable(sym::wasm_target_feature)),
("nontrapping-fptoint", Unstable(sym::wasm_target_feature)),
("reference-types", Unstable(sym::wasm_target_feature)),
("relaxed-simd", Unstable(sym::wasm_target_feature)),
("sign-ext", Unstable(sym::wasm_target_feature)),
("simd128", Stable),
// tidy-alphabetical-end
];
const BPF_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[("alu32", Some(sym::bpf_target_feature))];
const BPF_ALLOWED_FEATURES: &[(&str, Stability)] = &[("alu32", Unstable(sym::bpf_target_feature))];
const CSKY_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const CSKY_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("10e60", Some(sym::csky_target_feature)),
("2e3", Some(sym::csky_target_feature)),
("3e3r1", Some(sym::csky_target_feature)),
("3e3r2", Some(sym::csky_target_feature)),
("3e3r3", Some(sym::csky_target_feature)),
("3e7", Some(sym::csky_target_feature)),
("7e10", Some(sym::csky_target_feature)),
("cache", Some(sym::csky_target_feature)),
("doloop", Some(sym::csky_target_feature)),
("dsp1e2", Some(sym::csky_target_feature)),
("dspe60", Some(sym::csky_target_feature)),
("e1", Some(sym::csky_target_feature)),
("e2", Some(sym::csky_target_feature)),
("edsp", Some(sym::csky_target_feature)),
("elrw", Some(sym::csky_target_feature)),
("float1e2", Some(sym::csky_target_feature)),
("float1e3", Some(sym::csky_target_feature)),
("float3e4", Some(sym::csky_target_feature)),
("float7e60", Some(sym::csky_target_feature)),
("floate1", Some(sym::csky_target_feature)),
("hard-tp", Some(sym::csky_target_feature)),
("high-registers", Some(sym::csky_target_feature)),
("hwdiv", Some(sym::csky_target_feature)),
("mp", Some(sym::csky_target_feature)),
("mp1e2", Some(sym::csky_target_feature)),
("nvic", Some(sym::csky_target_feature)),
("trust", Some(sym::csky_target_feature)),
("vdsp2e60f", Some(sym::csky_target_feature)),
("vdspv1", Some(sym::csky_target_feature)),
("vdspv2", Some(sym::csky_target_feature)),
("10e60", Unstable(sym::csky_target_feature)),
("2e3", Unstable(sym::csky_target_feature)),
("3e3r1", Unstable(sym::csky_target_feature)),
("3e3r2", Unstable(sym::csky_target_feature)),
("3e3r3", Unstable(sym::csky_target_feature)),
("3e7", Unstable(sym::csky_target_feature)),
("7e10", Unstable(sym::csky_target_feature)),
("cache", Unstable(sym::csky_target_feature)),
("doloop", Unstable(sym::csky_target_feature)),
("dsp1e2", Unstable(sym::csky_target_feature)),
("dspe60", Unstable(sym::csky_target_feature)),
("e1", Unstable(sym::csky_target_feature)),
("e2", Unstable(sym::csky_target_feature)),
("edsp", Unstable(sym::csky_target_feature)),
("elrw", Unstable(sym::csky_target_feature)),
("float1e2", Unstable(sym::csky_target_feature)),
("float1e3", Unstable(sym::csky_target_feature)),
("float3e4", Unstable(sym::csky_target_feature)),
("float7e60", Unstable(sym::csky_target_feature)),
("floate1", Unstable(sym::csky_target_feature)),
("hard-tp", Unstable(sym::csky_target_feature)),
("high-registers", Unstable(sym::csky_target_feature)),
("hwdiv", Unstable(sym::csky_target_feature)),
("mp", Unstable(sym::csky_target_feature)),
("mp1e2", Unstable(sym::csky_target_feature)),
("nvic", Unstable(sym::csky_target_feature)),
("trust", Unstable(sym::csky_target_feature)),
("vdsp2e60f", Unstable(sym::csky_target_feature)),
("vdspv1", Unstable(sym::csky_target_feature)),
("vdspv2", Unstable(sym::csky_target_feature)),
// tidy-alphabetical-end
//fpu
// tidy-alphabetical-start
("fdivdu", Some(sym::csky_target_feature)),
("fpuv2_df", Some(sym::csky_target_feature)),
("fpuv2_sf", Some(sym::csky_target_feature)),
("fpuv3_df", Some(sym::csky_target_feature)),
("fpuv3_hf", Some(sym::csky_target_feature)),
("fpuv3_hi", Some(sym::csky_target_feature)),
("fpuv3_sf", Some(sym::csky_target_feature)),
("hard-float", Some(sym::csky_target_feature)),
("hard-float-abi", Some(sym::csky_target_feature)),
("fdivdu", Unstable(sym::csky_target_feature)),
("fpuv2_df", Unstable(sym::csky_target_feature)),
("fpuv2_sf", Unstable(sym::csky_target_feature)),
("fpuv3_df", Unstable(sym::csky_target_feature)),
("fpuv3_hf", Unstable(sym::csky_target_feature)),
("fpuv3_hi", Unstable(sym::csky_target_feature)),
("fpuv3_sf", Unstable(sym::csky_target_feature)),
("hard-float", Unstable(sym::csky_target_feature)),
("hard-float-abi", Unstable(sym::csky_target_feature)),
// tidy-alphabetical-end
];
const LOONGARCH_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
const LOONGARCH_ALLOWED_FEATURES: &[(&str, Stability)] = &[
// tidy-alphabetical-start
("d", Some(sym::loongarch_target_feature)),
("f", Some(sym::loongarch_target_feature)),
("lasx", Some(sym::loongarch_target_feature)),
("lbt", Some(sym::loongarch_target_feature)),
("lsx", Some(sym::loongarch_target_feature)),
("lvz", Some(sym::loongarch_target_feature)),
("ual", Some(sym::loongarch_target_feature)),
("d", Unstable(sym::loongarch_target_feature)),
("f", Unstable(sym::loongarch_target_feature)),
("lasx", Unstable(sym::loongarch_target_feature)),
("lbt", Unstable(sym::loongarch_target_feature)),
("lsx", Unstable(sym::loongarch_target_feature)),
("lvz", Unstable(sym::loongarch_target_feature)),
("ual", Unstable(sym::loongarch_target_feature)),
// tidy-alphabetical-end
];
@ -368,7 +401,7 @@ const LOONGARCH_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
/// primitives may be documented.
///
/// IMPORTANT: If you're adding another feature list above, make sure to add it to this iterator!
pub fn all_known_features() -> impl Iterator<Item = (&'static str, Option<Symbol>)> {
pub fn all_known_features() -> impl Iterator<Item = (&'static str, Stability)> {
std::iter::empty()
.chain(ARM_ALLOWED_FEATURES.iter())
.chain(AARCH64_ALLOWED_FEATURES.iter())
@ -384,7 +417,7 @@ pub fn all_known_features() -> impl Iterator<Item = (&'static str, Option<Symbol
.cloned()
}
pub fn supported_target_features(sess: &Session) -> &'static [(&'static str, Option<Symbol>)] {
pub fn supported_target_features(sess: &Session) -> &'static [(&'static str, Stability)] {
match &*sess.target.arch {
"arm" => ARM_ALLOWED_FEATURES,
"aarch64" => AARCH64_ALLOWED_FEATURES,
@ -529,11 +562,11 @@ pub(crate) fn provide(providers: &mut Providers) {
if tcx.sess.opts.actually_rustdoc {
// rustdoc needs to be able to document functions that use all the features, so
// whitelist them all
all_known_features().map(|(a, b)| (a.to_string(), b)).collect()
all_known_features().map(|(a, b)| (a.to_string(), b.as_feature_name())).collect()
} else {
supported_target_features(tcx.sess)
.iter()
.map(|&(a, b)| (a.to_string(), b))
.map(|&(a, b)| (a.to_string(), b.as_feature_name()))
.collect()
}
},

4
compiler/rustc_const_eval/src/interpret/discriminant.rs
View File

@ -119,7 +119,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
if matches!(ty.kind(), ty::Adt(def, ..) if def.variants().is_empty()) {
throw_ub!(UninhabitedEnumVariantRead(index))
}
// For consisteny with `write_discriminant`, and to make sure that
// For consistency with `write_discriminant`, and to make sure that
// `project_downcast` cannot fail due to strange layouts, we declare immediate UB
// for uninhabited variants.
if op.layout().for_variant(self, index).abi.is_uninhabited() {
@ -236,7 +236,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
variant
}
};
// For consisteny with `write_discriminant`, and to make sure that `project_downcast` cannot fail due to strange layouts, we declare immediate UB for uninhabited variants.
// For consistency with `write_discriminant`, and to make sure that `project_downcast` cannot fail due to strange layouts, we declare immediate UB for uninhabited variants.
if op.layout().for_variant(self, index).abi.is_uninhabited() {
throw_ub!(UninhabitedEnumVariantRead(index))
}

6
compiler/rustc_data_structures/src/sharded.rs
View File

@ -79,7 +79,7 @@ impl<T> Sharded<T> {
pub fn lock_shard_by_value<K: Hash + ?Sized>(&self, _val: &K) -> LockGuard<'_, T> {
match self {
Self::Single(single) => {
// Syncronization is disabled so use the `lock_assume_no_sync` method optimized
// Synchronization is disabled so use the `lock_assume_no_sync` method optimized
// for that case.
// SAFETY: We know `is_dyn_thread_safe` was false when creating the lock thus
@ -102,7 +102,7 @@ impl<T> Sharded<T> {
pub fn lock_shard_by_index(&self, _i: usize) -> LockGuard<'_, T> {
match self {
Self::Single(single) => {
// Syncronization is disabled so use the `lock_assume_no_sync` method optimized
// Synchronization is disabled so use the `lock_assume_no_sync` method optimized
// for that case.
// SAFETY: We know `is_dyn_thread_safe` was false when creating the lock thus
@ -111,7 +111,7 @@ impl<T> Sharded<T> {
}
#[cfg(parallel_compiler)]
Self::Shards(shards) => {
// Syncronization is enabled so use the `lock_assume_sync` method optimized
// Synchronization is enabled so use the `lock_assume_sync` method optimized
// for that case.
// SAFETY (get_unchecked): The index gets ANDed with the shard mask, ensuring it is

4
compiler/rustc_data_structures/src/sync/lock.rs
View File

@ -38,7 +38,7 @@ mod maybe_sync {
lock: &'a Lock<T>,
marker: PhantomData<&'a mut T>,
/// The syncronization mode of the lock. This is explicitly passed to let LLVM relate it
/// The synchronization mode of the lock. This is explicitly passed to let LLVM relate it
/// to the original lock operation.
mode: Mode,
}
@ -142,7 +142,7 @@ mod maybe_sync {
.then(|| LockGuard { lock: self, marker: PhantomData, mode })
}
/// This acquires the lock assuming syncronization is in a specific mode.
/// This acquires the lock assuming synchronization is in a specific mode.
///
/// Safety
/// This method must only be called with `Mode::Sync` if `might_be_dyn_thread_safe` was

2
compiler/rustc_errors/src/markdown/parse.rs
View File

@ -329,7 +329,7 @@ fn parse_with_end_pat<'a>(
end_sep: &[u8],
ignore_esc: bool,
) -> Option<(&'a [u8], &'a [u8])> {
// Find positions that start with the end seperator
// Find positions that start with the end separator
for idx in (0..buf.len()).filter(|idx| buf[*idx..].starts_with(end_sep)) {
if !ignore_esc && idx > 0 && buf[idx - 1] == b'\\' {
continue;

60
compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs
View File

@ -2326,14 +2326,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
));
}
let needs_parens = match expr.kind {
// parenthesize if needed (Issue #46756)
hir::ExprKind::Cast(_, _) | hir::ExprKind::Binary(_, _, _) => true,
// parenthesize borrows of range literals (Issue #54505)
_ if is_range_literal(expr) => true,
_ => false,
};
if let Some((sugg, msg)) = self.can_use_as_ref(expr) {
return Some((
sugg,
@ -2361,18 +2353,48 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
}
}
let sugg = mutability.ref_prefix_str();
let (sugg, verbose) = if needs_parens {
(
vec![
(sp.shrink_to_lo(), format!("{prefix}{sugg}(")),
(sp.shrink_to_hi(), ")".to_string()),
],
false,
)
} else {
(vec![(sp.shrink_to_lo(), format!("{prefix}{sugg}"))], true)
let make_sugg = |expr: &Expr<'_>, span: Span, sugg: &str| {
let needs_parens = match expr.kind {
// parenthesize if needed (Issue #46756)
hir::ExprKind::Cast(_, _) | hir::ExprKind::Binary(_, _, _) => true,
// parenthesize borrows of range literals (Issue #54505)
_ if is_range_literal(expr) => true,
_ => false,
};
if needs_parens {
(
vec![
(span.shrink_to_lo(), format!("{prefix}{sugg}(")),
(span.shrink_to_hi(), ")".to_string()),
],
false,
)
} else {
(vec![(span.shrink_to_lo(), format!("{prefix}{sugg}"))], true)
}
};
// Suggest dereferencing the lhs for expressions such as `&T == T`
if let Some(hir::Node::Expr(hir::Expr {
kind: hir::ExprKind::Binary(_, lhs, ..),
..
})) = self.tcx.hir().find_parent(expr.hir_id)
&& let &ty::Ref(..) = self.check_expr(lhs).kind()
{
let (sugg, verbose) = make_sugg(lhs, lhs.span, "*");
return Some((
sugg,
"consider dereferencing the borrow".to_string(),
Applicability::MachineApplicable,
verbose,
false,
));
}
let sugg = mutability.ref_prefix_str();
let (sugg, verbose) = make_sugg(expr, sp, sugg);
return Some((
sugg,
format!("consider {}borrowing here", mutability.mutably_str()),

2
compiler/rustc_lint/src/reference_casting.rs
View File

@ -155,7 +155,7 @@ fn is_cast_from_const_to_mut<'tcx>(
let start_ty = cx.typeck_results().node_type(e.hir_id);
if let ty::Ref(_, inner_ty, Mutability::Not) = start_ty.kind() {
// If an UnsafeCell method is involved we need to additionaly check the
// If an UnsafeCell method is involved we need to additionally check the
// inner type for the presence of the Freeze trait (ie does NOT contain
// an UnsafeCell), since in that case we would incorrectly lint on valid casts.
//

12
compiler/rustc_mir_build/src/build/mod.rs
View File

@ -656,17 +656,7 @@ fn construct_error(tcx: TyCtxt<'_>, def_id: LocalDefId, guar: ErrorGuaranteed) -
let args = args.as_coroutine();
let yield_ty = args.yield_ty();
let return_ty = args.return_ty();
let self_ty = Ty::new_adt(
tcx,
tcx.adt_def(tcx.lang_items().pin_type().unwrap()),
tcx.mk_args(&[Ty::new_mut_ref(tcx, tcx.lifetimes.re_erased, coroutine_ty).into()]),
);
let coroutine_state = Ty::new_adt(
tcx,
tcx.adt_def(tcx.lang_items().coroutine_state().unwrap()),
tcx.mk_args(&[yield_ty.into(), return_ty.into()]),
);
(vec![self_ty, args.resume_ty()], coroutine_state, Some(yield_ty))
(vec![coroutine_ty, args.resume_ty()], return_ty, Some(yield_ty))
}
dk => bug!("{:?} is not a body: {:?}", def_id, dk),
};

2
compiler/rustc_parse/src/parser/ty.rs
View File

@ -135,7 +135,7 @@ impl<'a> Parser<'a> {
)
}
/// Parse a type suitable for a field defintion.
/// Parse a type suitable for a field definition.
/// The difference from `parse_ty` is that this version
/// allows anonymous structs and unions.
pub fn parse_ty_for_field_def(&mut self) -> PResult<'a, P<Ty>> {

2
compiler/rustc_passes/src/dead.rs
View File

@ -314,7 +314,7 @@ impl<'tcx> MarkSymbolVisitor<'tcx> {
// for the `#[expect]` case.
//
// Note that an item can and will be duplicated on the worklist with different
// `ComesFromAllowExpect`, particulary if it was added from the
// `ComesFromAllowExpect`, particularly if it was added from the
// `effective_visibilities` query or from the `#[allow]`/`#[expect]` checks,
// this "duplication" is essential as otherwise a function with `#[expect]`
// called from a `pub fn` may be falsely reported as not live, falsely

2
compiler/rustc_privacy/src/lib.rs
View File

@ -1756,7 +1756,7 @@ impl<'tcx> PrivateItemsInPublicInterfacesChecker<'tcx, '_> {
// fn from(_: Priv) -> Pub {...}
// }
//
// lints shouldn't be emmited even if `from` effective visibility
// lints shouldn't be emitted even if `from` effective visibility
// is larger than `Priv` nominal visibility and if `Priv` can leak
// in some scenarios due to type inference.
let impl_ev = EffectiveVisibility::of_impl::<false>(

2
src/tools/tidy/src/ui_tests.rs
View File

@ -10,7 +10,7 @@ use std::path::{Path, PathBuf};
const ENTRY_LIMIT: usize = 900;
// FIXME: The following limits should be reduced eventually.
const ISSUES_ENTRY_LIMIT: usize = 1854;
const ISSUES_ENTRY_LIMIT: usize = 1852;
const ROOT_ENTRY_LIMIT: usize = 867;
const EXPECTED_TEST_FILE_EXTENSIONS: &[&str] = &[

8
tests/ui/binop/binary-op-suggest-deref.fixed Normal file
View File

@ -0,0 +1,8 @@
// Issue #52544
// run-rustfix
fn main() {
let i: &i64 = &1;
if *i < 0 {}
//~^ ERROR mismatched types [E0308]
}

8
tests/ui/binop/binary-op-suggest-deref.rs Normal file
View File

@ -0,0 +1,8 @@
// Issue #52544
// run-rustfix
fn main() {
let i: &i64 = &1;
if i < 0 {}
//~^ ERROR mismatched types [E0308]
}

14
tests/ui/binop/binary-op-suggest-deref.stderr Normal file
View File

@ -0,0 +1,14 @@
error[E0308]: mismatched types
--> $DIR/binary-op-suggest-deref.rs:6:12
|
LL | if i < 0 {}
| ^ expected `&i64`, found integer
|
help: consider dereferencing the borrow
|
LL | if *i < 0 {}
| +
error: aborting due to previous error
For more information about this error, try `rustc --explain E0308`.

8
tests/ui/mir/build-async-error-body-correctly.rs Normal file
View File

@ -0,0 +1,8 @@
// edition: 2021
async fn asyncfn() {
let binding = match true {};
//~^ ERROR non-exhaustive patterns: type `bool` is non-empty
}
fn main() {}

17
tests/ui/mir/build-async-error-body-correctly.stderr Normal file
View File

@ -0,0 +1,17 @@
error[E0004]: non-exhaustive patterns: type `bool` is non-empty
--> $DIR/build-async-error-body-correctly.rs:4:25
|
LL | let binding = match true {};
| ^^^^
|
= note: the matched value is of type `bool`
help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
|
LL ~ let binding = match true {
LL + _ => todo!(),
LL ~ };
|
error: aborting due to previous error
For more information about this error, try `rustc --explain E0004`.

11
tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.fixed Normal file
View File

@ -0,0 +1,11 @@
// run-rustfix
use std::any::Any;
fn foo<T: Any>(value: &T) -> Box<dyn Any + '_> {
Box::new(value) as Box<dyn Any>
//~^ ERROR lifetime may not live long enough
}
fn main() {
let _ = foo(&5);
}

1
tests/ui/issues/issue-16922.rs → tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.rs
View File

@ -1,3 +1,4 @@
// run-rustfix
use std::any::Any;
fn foo<T: Any>(value: &T) -> Box<dyn Any> {

2
tests/ui/issues/issue-16922.stderr → tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.stderr
View File

@ -1,5 +1,5 @@
error: lifetime may not live long enough
--> $DIR/issue-16922.rs:4:5
--> $DIR/suggest-using-tick-underscore-lifetime-in-return-trait-object.rs:5:5
|
LL | fn foo<T: Any>(value: &T) -> Box<dyn Any> {
| - let's call the lifetime of this reference `'1`