Auto merge of #116671 - matthiaskrgr:rollup-b41rw92, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - #116593 (Add unstable book page for the no-jump-tables codegen option)
 - #116625 (`rustc_hir_pretty` cleanups)
 - #116642 (Handle several `#[diagnostic::on_unimplemented]` attributes correctly)
 - #116654 (coverage: Clarify loop-edge detection and graph traversal)
 - #116669 (Fix mips platform support entries.)

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

4 files changed, 21 insertions, 6 deletions

diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md
index d25fa661c3f..1fb5e56db5d 100644
--- a/src/doc/rustc/src/platform-support.md
+++ b/src/doc/rustc/src/platform-support.md
@@ -286,10 +286,6 @@ target | std | host | notes
 `mipsel-unknown-linux-musl` | ✓ |  | MIPS (little endian) Linux with musl libc
 `mipsel-sony-psp` | * |  | MIPS (LE) Sony PlayStation Portable (PSP)
 [`mipsel-sony-psx`](platform-support/mipsel-sony-psx.md) | * |  | MIPS (LE) Sony PlayStation 1 (PSX)
-`mips-unknown-linux-gnu` | MIPS Linux (kernel 4.4, glibc 2.23)
-`mips64-unknown-linux-gnuabi64` | MIPS64 Linux, n64 ABI (kernel 4.4, glibc 2.23)
-`mips64el-unknown-linux-gnuabi64` | MIPS64 (LE) Linux, n64 ABI (kernel 4.4, glibc 2.23)
-`mipsel-unknown-linux-gnu` | MIPS (LE) Linux (kernel 4.4, glibc 2.23)
 `mipsel-unknown-linux-uclibc` | ✓ |  | MIPS (LE) Linux with uClibc
 `mipsel-unknown-none` | * |  | Bare MIPS (LE) softfloat
 [`mipsisa32r6-unknown-linux-gnu`](platform-support/mips-release-6.md) | ? |  | 32-bit MIPS Release 6 Big Endian
diff --git a/src/doc/unstable-book/src/compiler-flags/no-jump-tables.md b/src/doc/unstable-book/src/compiler-flags/no-jump-tables.md
new file mode 100644
index 00000000000..f096c20f4bd
--- /dev/null
+++ b/src/doc/unstable-book/src/compiler-flags/no-jump-tables.md
@@ -0,0 +1,19 @@
+# `no-jump-tables`
+
+The tracking issue for this feature is [#116592](https://github.com/rust-lang/rust/issues/116592)
+
+---
+
+This option enables the `-fno-jump-tables` flag for LLVM, which makes the
+codegen backend avoid generating jump tables when lowering switches.
+
+This option adds the LLVM `no-jump-tables=true` attribute to every function.
+
+The option can be used to help provide protection against
+jump-oriented-programming (JOP) attacks, such as with the linux kernel's [IBT].
+
+```sh
+RUSTFLAGS="-Zno-jump-tables" cargo +nightly build -Z build-std
+```
+
+[IBT]: https://www.phoronix.com/news/Linux-IBT-By-Default-Tip
diff --git a/src/tools/clippy/clippy_lints/src/matches/match_wild_err_arm.rs b/src/tools/clippy/clippy_lints/src/matches/match_wild_err_arm.rs
index de911f7a028..a2903e52ae0 100644
--- a/src/tools/clippy/clippy_lints/src/matches/match_wild_err_arm.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/match_wild_err_arm.rs
@@ -19,7 +19,7 @@ pub(crate) fn check<'tcx>(cx: &LateContext<'tcx>, ex: &Expr<'tcx>, arms: &[Arm<'
     if is_type_diagnostic_item(cx, ex_ty, sym::Result) {
         for arm in arms {
             if let PatKind::TupleStruct(ref path, inner, _) = arm.pat.kind {
-                let path_str = rustc_hir_pretty::to_string(rustc_hir_pretty::NO_ANN, |s| s.print_qpath(path, false));
+                let path_str = rustc_hir_pretty::qpath_to_string(path);
                 if path_str == "Err" {
                     let mut matching_wild = inner.iter().any(is_wild);
                     let mut ident_bind_name = kw::Underscore;
diff --git a/src/tools/clippy/clippy_lints/src/mut_reference.rs b/src/tools/clippy/clippy_lints/src/mut_reference.rs
index e53e146ec5d..01b850cdb11 100644
--- a/src/tools/clippy/clippy_lints/src/mut_reference.rs
+++ b/src/tools/clippy/clippy_lints/src/mut_reference.rs
@@ -49,7 +49,7 @@ impl<'tcx> LateLintPass<'tcx> for UnnecessaryMutPassed {
                         cx,
                         arguments.iter().collect(),
                         cx.typeck_results().expr_ty(fn_expr),
-                        &rustc_hir_pretty::to_string(rustc_hir_pretty::NO_ANN, |s| s.print_qpath(path, false)),
+                        &rustc_hir_pretty::qpath_to_string(path),
                         "function",
                     );
                 }