Auto merge of #112361 - matthiaskrgr:rollup-39zxrw1, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - #111250 (Add Terminator conversion from MIR to SMIR, part #2)
 - #112310 (Add new Tier-3 targets: `loongarch64-unknown-none*`)
 - #112334 (Add myself to highfive rotation)
 - #112340 (remove `TyCtxt::has_error_field` helper method)
 - #112343 (Prevent emitting `missing_docs` for `pub extern crate`)
 - #112350 (Avoid duplicate type sanitization of local decls in borrowck)
 - #112356 (Fix comment for `get_region_var_origins`)
 - #112358 (Remove default visitor impl in region constraint generation)

r? `@ghost`
`@rustbot` modify labels: rollup

compiler/rustc_target/src/spec/loongarch64_unknown_none.rs

@@ -0,0 +1,23 @@
+use super::{Cc, CodeModel, LinkerFlavor, Lld, PanicStrategy};
+use super::{Target, TargetOptions};
+
+pub fn target() -> Target {
+    Target {
+        llvm_target: "loongarch64-unknown-none".into(),
+        pointer_width: 64,
+        data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(),
+        arch: "loongarch64".into(),
+        options: TargetOptions {
+            cpu: "generic".into(),
+            features: "+f,+d".into(),
+            linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::No),
+            llvm_abiname: "lp64d".into(),
+            max_atomic_width: Some(64),
+            position_independent_executables: true,
+            static_position_independent_executables: true,
+            panic_strategy: PanicStrategy::Abort,
+            code_model: Some(CodeModel::Small),
+            ..Default::default()
+        },
+    }
+}

compiler/rustc_target/src/spec/loongarch64_unknown_none_softfloat.rs

@@ -0,0 +1,24 @@
+use super::{Cc, CodeModel, LinkerFlavor, Lld, PanicStrategy};
+use super::{Target, TargetOptions};
+
+pub fn target() -> Target {
+    Target {
+        llvm_target: "loongarch64-unknown-none-softfloat".into(),
+        pointer_width: 64,
+        data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(),
+        arch: "loongarch64".into(),
+        options: TargetOptions {
+            cpu: "generic".into(),
+            features: "-f,-d".into(),
+            abi: "softfloat".into(),
+            linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::No),
+            llvm_abiname: "lp64s".into(),
+            max_atomic_width: Some(64),
+            position_independent_executables: true,
+            static_position_independent_executables: true,
+            panic_strategy: PanicStrategy::Abort,
+            code_model: Some(CodeModel::Small),
+            ..Default::default()
+        },
+    }
+}

compiler/rustc_target/src/spec/mod.rs

@@ -1294,6 +1294,9 @@ supported_targets! {
     ("riscv64gc-unknown-linux-gnu", riscv64gc_unknown_linux_gnu),
     ("riscv64gc-unknown-linux-musl", riscv64gc_unknown_linux_musl),
 
+    ("loongarch64-unknown-none", loongarch64_unknown_none),
+    ("loongarch64-unknown-none-softfloat", loongarch64_unknown_none_softfloat),
+
     ("aarch64-unknown-none", aarch64_unknown_none),
     ("aarch64-unknown-none-softfloat", aarch64_unknown_none_softfloat),