inline format!() args up to and including rustc_codegen_llvm

12 files changed, 75 insertions, 82 deletions

diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs
index eefa4ac34dd..cd6201648ee 100644
--- a/compiler/rustc_codegen_ssa/src/back/link.rs
+++ b/compiler/rustc_codegen_ssa/src/back/link.rs
@@ -748,7 +748,7 @@ fn link_natively<'a>(
 
     for print in &sess.opts.prints {
         if print.kind == PrintKind::LinkArgs {
-            let content = format!("{:?}", cmd);
+            let content = format!("{cmd:?}");
             print.out.overwrite(&content, sess);
         }
     }
@@ -1236,22 +1236,21 @@ fn link_sanitizer_runtime(sess: &Session, linker: &mut dyn Linker, name: &str) {
         }
     }
 
-    let channel = option_env!("CFG_RELEASE_CHANNEL")
-        .map(|channel| format!("-{}", channel))
-        .unwrap_or_default();
+    let channel =
+        option_env!("CFG_RELEASE_CHANNEL").map(|channel| format!("-{channel}")).unwrap_or_default();
 
     if sess.target.is_like_osx {
         // On Apple platforms, the sanitizer is always built as a dylib, and
         // LLVM will link to `@rpath/*.dylib`, so we need to specify an
         // rpath to the library as well (the rpath should be absolute, see
         // PR #41352 for details).
-        let filename = format!("rustc{}_rt.{}", channel, name);
+        let filename = format!("rustc{channel}_rt.{name}");
         let path = find_sanitizer_runtime(&sess, &filename);
         let rpath = path.to_str().expect("non-utf8 component in path");
         linker.args(&["-Wl,-rpath", "-Xlinker", rpath]);
         linker.link_dylib(&filename, false, true);
     } else {
-        let filename = format!("librustc{}_rt.{}.a", channel, name);
+        let filename = format!("librustc{channel}_rt.{name}.a");
         let path = find_sanitizer_runtime(&sess, &filename).join(&filename);
         linker.link_whole_rlib(&path);
     }
@@ -1415,12 +1414,12 @@ fn print_native_static_libs(
                     } else if sess.target.linker_flavor.is_gnu() {
                         Some(format!("-l{}{}", if verbatim { ":" } else { "" }, name))
                     } else {
-                        Some(format!("-l{}", name))
+                        Some(format!("-l{name}"))
                     }
                 }
                 NativeLibKind::Framework { .. } => {
                     // ld-only syntax, since there are no frameworks in MSVC
-                    Some(format!("-framework {}", name))
+                    Some(format!("-framework {name}"))
                 }
                 // These are included, no need to print them
                 NativeLibKind::Static { bundle: None | Some(true), .. }
@@ -1457,12 +1456,12 @@ fn print_native_static_libs(
             // `foo.lib` file if the dll doesn't actually export any symbols, so we
             // check to see if the file is there and just omit linking to it if it's
             // not present.
-            let name = format!("{}.dll.lib", lib);
+            let name = format!("{lib}.dll.lib");
             if path.join(&name).exists() {
                 lib_args.push(name);
             }
         } else {
-            lib_args.push(format!("-l{}", lib));
+            lib_args.push(format!("-l{lib}"));
         }
     }
 
@@ -1628,8 +1627,8 @@ fn exec_linker(
                 write!(f, "\"")?;
                 for c in self.arg.chars() {
                     match c {
-                        '"' => write!(f, "\\{}", c)?,
-                        c => write!(f, "{}", c)?,
+                        '"' => write!(f, "\\{c}")?,
+                        c => write!(f, "{c}")?,
                     }
                 }
                 write!(f, "\"")?;
@@ -1646,8 +1645,8 @@ fn exec_linker(
                 // ensure the line is interpreted as one whole argument.
                 for c in self.arg.chars() {
                     match c {
-                        '\\' | ' ' => write!(f, "\\{}", c)?,
-                        c => write!(f, "{}", c)?,
+                        '\\' | ' ' => write!(f, "\\{c}")?,
+                        c => write!(f, "{c}")?,
                     }
                 }
             }
@@ -2284,7 +2283,7 @@ fn add_order_independent_options(
         } else {
             ""
         };
-        cmd.arg(format!("--dynamic-linker={}ld.so.1", prefix));
+        cmd.arg(format!("--dynamic-linker={prefix}ld.so.1"));
     }
 
     if sess.target.eh_frame_header {
diff --git a/compiler/rustc_codegen_ssa/src/back/linker.rs b/compiler/rustc_codegen_ssa/src/back/linker.rs
index cd56f85cccd..4c04fc60b98 100644
--- a/compiler/rustc_codegen_ssa/src/back/linker.rs
+++ b/compiler/rustc_codegen_ssa/src/back/linker.rs
@@ -309,7 +309,7 @@ impl<'a> GccLinker<'a> {
             self.linker_arg(&format!("-plugin-opt=sample-profile={}", path.display()));
         };
         self.linker_args(&[
-            &format!("-plugin-opt={}", opt_level),
+            &format!("-plugin-opt={opt_level}"),
             &format!("-plugin-opt=mcpu={}", self.target_cpu),
         ]);
     }
@@ -487,7 +487,7 @@ impl<'a> Linker for GccLinker<'a> {
 
     fn link_rust_dylib(&mut self, lib: &str, _path: &Path) {
         self.hint_dynamic();
-        self.cmd.arg(format!("-l{}", lib));
+        self.cmd.arg(format!("-l{lib}"));
     }
 
     fn link_framework(&mut self, framework: &str, as_needed: bool) {
@@ -671,8 +671,8 @@ impl<'a> Linker for GccLinker<'a> {
             let res: io::Result<()> = try {
                 let mut f = BufWriter::new(File::create(&path)?);
                 for sym in symbols {
-                    debug!("  _{}", sym);
-                    writeln!(f, "_{}", sym)?;
+                    debug!("  _{sym}");
+                    writeln!(f, "_{sym}")?;
                 }
             };
             if let Err(error) = res {
@@ -686,8 +686,8 @@ impl<'a> Linker for GccLinker<'a> {
                 // because LD doesn't like when it's empty
                 writeln!(f, "EXPORTS")?;
                 for symbol in symbols {
-                    debug!("  _{}", symbol);
-                    writeln!(f, "  {}", symbol)?;
+                    debug!("  _{symbol}");
+                    writeln!(f, "  {symbol}")?;
                 }
             };
             if let Err(error) = res {
@@ -701,8 +701,8 @@ impl<'a> Linker for GccLinker<'a> {
                 if !symbols.is_empty() {
                     writeln!(f, "  global:")?;
                     for sym in symbols {
-                        debug!("    {};", sym);
-                        writeln!(f, "    {};", sym)?;
+                        debug!("    {sym};");
+                        writeln!(f, "    {sym};")?;
                     }
                 }
                 writeln!(f, "\n  local:\n    *;\n}};")?;
@@ -837,7 +837,7 @@ impl<'a> Linker for MsvcLinker<'a> {
         // `foo.lib` file if the dll doesn't actually export any symbols, so we
         // check to see if the file is there and just omit linking to it if it's
         // not present.
-        let name = format!("{}.dll.lib", lib);
+        let name = format!("{lib}.dll.lib");
         if path.join(&name).exists() {
             self.cmd.arg(name);
         }
@@ -977,8 +977,8 @@ impl<'a> Linker for MsvcLinker<'a> {
             writeln!(f, "LIBRARY")?;
             writeln!(f, "EXPORTS")?;
             for symbol in symbols {
-                debug!("  _{}", symbol);
-                writeln!(f, "  {}", symbol)?;
+                debug!("  _{symbol}");
+                writeln!(f, "  {symbol}")?;
             }
         };
         if let Err(error) = res {
@@ -992,7 +992,7 @@ impl<'a> Linker for MsvcLinker<'a> {
     fn subsystem(&mut self, subsystem: &str) {
         // Note that previous passes of the compiler validated this subsystem,
         // so we just blindly pass it to the linker.
-        self.cmd.arg(&format!("/SUBSYSTEM:{}", subsystem));
+        self.cmd.arg(&format!("/SUBSYSTEM:{subsystem}"));
 
         // Windows has two subsystems we're interested in right now, the console
         // and windows subsystems. These both implicitly have different entry
@@ -1147,7 +1147,7 @@ impl<'a> Linker for EmLinker<'a> {
             &symbols.iter().map(|sym| "_".to_owned() + sym).collect::<Vec<_>>(),
         )
         .unwrap();
-        debug!("{}", encoded);
+        debug!("{encoded}");
 
         arg.push(encoded);
 
@@ -1350,7 +1350,7 @@ impl<'a> Linker for L4Bender<'a> {
     }
     fn link_staticlib(&mut self, lib: &str, _verbatim: bool) {
         self.hint_static();
-        self.cmd.arg(format!("-PC{}", lib));
+        self.cmd.arg(format!("-PC{lib}"));
     }
     fn link_rlib(&mut self, lib: &Path) {
         self.hint_static();
@@ -1399,7 +1399,7 @@ impl<'a> Linker for L4Bender<'a> {
 
     fn link_whole_staticlib(&mut self, lib: &str, _verbatim: bool, _search_path: &[PathBuf]) {
         self.hint_static();
-        self.cmd.arg("--whole-archive").arg(format!("-l{}", lib));
+        self.cmd.arg("--whole-archive").arg(format!("-l{lib}"));
         self.cmd.arg("--no-whole-archive");
     }
 
@@ -1453,7 +1453,7 @@ impl<'a> Linker for L4Bender<'a> {
     }
 
     fn subsystem(&mut self, subsystem: &str) {
-        self.cmd.arg(&format!("--subsystem {}", subsystem));
+        self.cmd.arg(&format!("--subsystem {subsystem}"));
     }
 
     fn reset_per_library_state(&mut self) {
@@ -1518,12 +1518,12 @@ impl<'a> AixLinker<'a> {
 impl<'a> Linker for AixLinker<'a> {
     fn link_dylib(&mut self, lib: &str, _verbatim: bool, _as_needed: bool) {
         self.hint_dynamic();
-        self.cmd.arg(format!("-l{}", lib));
+        self.cmd.arg(format!("-l{lib}"));
     }
 
     fn link_staticlib(&mut self, lib: &str, _verbatim: bool) {
         self.hint_static();
-        self.cmd.arg(format!("-l{}", lib));
+        self.cmd.arg(format!("-l{lib}"));
     }
 
     fn link_rlib(&mut self, lib: &Path) {
@@ -1573,7 +1573,7 @@ impl<'a> Linker for AixLinker<'a> {
 
     fn link_rust_dylib(&mut self, lib: &str, _: &Path) {
         self.hint_dynamic();
-        self.cmd.arg(format!("-l{}", lib));
+        self.cmd.arg(format!("-l{lib}"));
     }
 
     fn link_framework(&mut self, _framework: &str, _as_needed: bool) {
@@ -1626,12 +1626,12 @@ impl<'a> Linker for AixLinker<'a> {
             let mut f = BufWriter::new(File::create(&path)?);
             // FIXME: use llvm-nm to generate export list.
             for symbol in symbols {
-                debug!("  _{}", symbol);
-                writeln!(f, "  {}", symbol)?;
+                debug!("  _{symbol}");
+                writeln!(f, "  {symbol}")?;
             }
         };
         if let Err(e) = res {
-            self.sess.fatal(format!("failed to write export file: {}", e));
+            self.sess.fatal(format!("failed to write export file: {e}"));
         }
         self.cmd.arg(format!("-bE:{}", path.to_str().unwrap()));
     }
@@ -1908,7 +1908,7 @@ impl<'a> Linker for BpfLinker<'a> {
         let res: io::Result<()> = try {
             let mut f = BufWriter::new(File::create(&path)?);
             for sym in symbols {
-                writeln!(f, "{}", sym)?;
+                writeln!(f, "{sym}")?;
             }
         };
         if let Err(error) = res {
diff --git a/compiler/rustc_codegen_ssa/src/back/metadata.rs b/compiler/rustc_codegen_ssa/src/back/metadata.rs
index c4bb51edade..5c7df29444b 100644
--- a/compiler/rustc_codegen_ssa/src/back/metadata.rs
+++ b/compiler/rustc_codegen_ssa/src/back/metadata.rs
@@ -158,20 +158,19 @@ pub(super) fn get_metadata_xcoff<'a>(path: &Path, data: &'a [u8]) -> Result<&'a
     {
         let offset = metadata_symbol.address() as usize;
         if offset < 4 {
-            return Err(format!("Invalid metadata symbol offset: {}", offset));
+            return Err(format!("Invalid metadata symbol offset: {offset}"));
         }
         // The offset specifies the location of rustc metadata in the comment section.
         // The metadata is preceded by a 4-byte length field.
         let len = u32::from_be_bytes(info_data[(offset - 4)..offset].try_into().unwrap()) as usize;
         if offset + len > (info_data.len() as usize) {
             return Err(format!(
-                "Metadata at offset {} with size {} is beyond .info section",
-                offset, len
+                "Metadata at offset {offset} with size {len} is beyond .info section"
             ));
         }
         return Ok(&info_data[offset..(offset + len)]);
     } else {
-        return Err(format!("Unable to find symbol {}", AIX_METADATA_SYMBOL_NAME));
+        return Err(format!("Unable to find symbol {AIX_METADATA_SYMBOL_NAME}"));
     };
 }
 
diff --git a/compiler/rustc_codegen_ssa/src/back/rpath.rs b/compiler/rustc_codegen_ssa/src/back/rpath.rs
index 0b5656c9ad1..18268622341 100644
--- a/compiler/rustc_codegen_ssa/src/back/rpath.rs
+++ b/compiler/rustc_codegen_ssa/src/back/rpath.rs
@@ -86,7 +86,7 @@ fn get_rpath_relative_to_output(config: &mut RPathConfig<'_>, lib: &Path) -> Str
     output.pop(); // strip filename
     let output = fs::canonicalize(&output).unwrap_or(output);
     let relative = path_relative_from(&lib, &output)
-        .unwrap_or_else(|| panic!("couldn't create relative path from {:?} to {:?}", output, lib));
+        .unwrap_or_else(|| panic!("couldn't create relative path from {output:?} to {lib:?}"));
     // FIXME (#9639): This needs to handle non-utf8 paths
     format!("{}/{}", prefix, relative.to_str().expect("non-utf8 component in path"))
 }
diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs
index 0bbb6c9c338..682418f3a35 100644
--- a/compiler/rustc_codegen_ssa/src/back/write.rs
+++ b/compiler/rustc_codegen_ssa/src/back/write.rs
@@ -1471,7 +1471,7 @@ fn start_executing_work<B: ExtraBackendMethods>(
                             }
                         }
                         Err(e) => {
-                            let msg = &format!("failed to acquire jobserver token: {}", e);
+                            let msg = &format!("failed to acquire jobserver token: {e}");
                             shared_emitter.fatal(msg);
                             codegen_state = Aborted;
                         }
@@ -2041,7 +2041,7 @@ pub fn submit_pre_lto_module_to_llvm<B: ExtraBackendMethods>(
 }
 
 pub fn pre_lto_bitcode_filename(module_name: &str) -> String {
-    format!("{}.{}", module_name, PRE_LTO_BC_EXT)
+    format!("{module_name}.{PRE_LTO_BC_EXT}")
 }
 
 fn msvc_imps_needed(tcx: TyCtxt<'_>) -> bool {
diff --git a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs
index 64f799bb1e6..067c824aba0 100644
--- a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs
+++ b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs
@@ -414,7 +414,7 @@ fn push_debuginfo_type_name<'tcx>(
         }
         // Type parameters from polymorphized functions.
         ty::Param(_) => {
-            write!(output, "{:?}", t).unwrap();
+            write!(output, "{t:?}").unwrap();
         }
         ty::Error(_)
         | ty::Infer(_)
@@ -565,9 +565,9 @@ fn push_disambiguated_special_name(
     output: &mut String,
 ) {
     if cpp_like_debuginfo {
-        write!(output, "{}${}", label, disambiguator).unwrap();
+        write!(output, "{label}${disambiguator}").unwrap();
     } else {
-        write!(output, "{{{}#{}}}", label, disambiguator).unwrap();
+        write!(output, "{{{label}#{disambiguator}}}").unwrap();
     }
 }
 
@@ -651,15 +651,15 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
             ty::Int(ity) => {
                 let bits = ct.eval_bits(tcx, ty::ParamEnv::reveal_all(), ct.ty());
                 let val = Integer::from_int_ty(&tcx, *ity).size().sign_extend(bits) as i128;
-                write!(output, "{}", val)
+                write!(output, "{val}")
             }
             ty::Uint(_) => {
                 let val = ct.eval_bits(tcx, ty::ParamEnv::reveal_all(), ct.ty());
-                write!(output, "{}", val)
+                write!(output, "{val}")
             }
             ty::Bool => {
                 let val = ct.try_eval_bool(tcx, ty::ParamEnv::reveal_all()).unwrap();
-                write!(output, "{}", val)
+                write!(output, "{val}")
             }
             _ => {
                 // If we cannot evaluate the constant to a known type, we fall back
@@ -678,9 +678,9 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
                 });
 
                 if cpp_like_debuginfo(tcx) {
-                    write!(output, "CONST${:x}", hash_short)
+                    write!(output, "CONST${hash_short:x}")
                 } else {
-                    write!(output, "{{CONST#{:x}}}", hash_short)
+                    write!(output, "{{CONST#{hash_short:x}}}")
                 }
             }
         },
@@ -752,7 +752,7 @@ fn push_close_angle_bracket(cpp_like_debuginfo: bool, output: &mut String) {
 }
 
 fn pop_close_angle_bracket(output: &mut String) {
-    assert!(output.ends_with('>'), "'output' does not end with '>': {}", output);
+    assert!(output.ends_with('>'), "'output' does not end with '>': {output}");
     output.pop();
     if output.ends_with(' ') {
         output.pop();
diff --git a/compiler/rustc_codegen_ssa/src/errors.rs b/compiler/rustc_codegen_ssa/src/errors.rs
index dbe1d6e8ba8..b7d8b9b45bf 100644
--- a/compiler/rustc_codegen_ssa/src/errors.rs
+++ b/compiler/rustc_codegen_ssa/src/errors.rs
@@ -177,31 +177,31 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
             }
             thorin::Error::NamelessSection(_, offset) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_section_without_name);
-                diag.set_arg("offset", format!("0x{:08x}", offset));
+                diag.set_arg("offset", format!("0x{offset:08x}"));
                 diag
             }
             thorin::Error::RelocationWithInvalidSymbol(section, offset) => {
                 diag =
                     handler.struct_err(fluent::codegen_ssa_thorin_relocation_with_invalid_symbol);
                 diag.set_arg("section", section);
-                diag.set_arg("offset", format!("0x{:08x}", offset));
+                diag.set_arg("offset", format!("0x{offset:08x}"));
                 diag
             }
             thorin::Error::MultipleRelocations(section, offset) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_multiple_relocations);
                 diag.set_arg("section", section);
-                diag.set_arg("offset", format!("0x{:08x}", offset));
+                diag.set_arg("offset", format!("0x{offset:08x}"));
                 diag
             }
             thorin::Error::UnsupportedRelocation(section, offset) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_unsupported_relocation);
                 diag.set_arg("section", section);
-                diag.set_arg("offset", format!("0x{:08x}", offset));
+                diag.set_arg("offset", format!("0x{offset:08x}"));
                 diag
             }
             thorin::Error::MissingDwoName(id) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_missing_dwo_name);
-                diag.set_arg("id", format!("0x{:08x}", id));
+                diag.set_arg("id", format!("0x{id:08x}"));
                 diag
             }
             thorin::Error::NoCompilationUnits => {
@@ -251,7 +251,7 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
             }
             thorin::Error::StrAtOffset(_, offset) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_str_at_offset);
-                diag.set_arg("offset", format!("0x{:08x}", offset));
+                diag.set_arg("offset", format!("0x{offset:08x}"));
                 diag
             }
             thorin::Error::ParseIndex(_, section) => {
@@ -261,7 +261,7 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
             }
             thorin::Error::UnitNotInIndex(unit) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_unit_not_in_index);
-                diag.set_arg("unit", format!("0x{:08x}", unit));
+                diag.set_arg("unit", format!("0x{unit:08x}"));
                 diag
             }
             thorin::Error::RowNotInIndex(_, row) => {
@@ -275,7 +275,7 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
             }
             thorin::Error::EmptyUnit(unit) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_empty_unit);
-                diag.set_arg("unit", format!("0x{:08x}", unit));
+                diag.set_arg("unit", format!("0x{unit:08x}"));
                 diag
             }
             thorin::Error::MultipleDebugInfoSection => {
@@ -292,12 +292,12 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
             }
             thorin::Error::DuplicateUnit(unit) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_duplicate_unit);
-                diag.set_arg("unit", format!("0x{:08x}", unit));
+                diag.set_arg("unit", format!("0x{unit:08x}"));
                 diag
             }
             thorin::Error::MissingReferencedUnit(unit) => {
                 diag = handler.struct_err(fluent::codegen_ssa_thorin_missing_referenced_unit);
-                diag.set_arg("unit", format!("0x{:08x}", unit));
+                diag.set_arg("unit", format!("0x{unit:08x}"));
                 diag
             }
             thorin::Error::NoOutputObjectCreated => {
diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs
index ed608bdbe9a..23c736c1579 100644
--- a/compiler/rustc_codegen_ssa/src/mir/block.rs
+++ b/compiler/rustc_codegen_ssa/src/mir/block.rs
@@ -703,13 +703,12 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
                     with_no_trimmed_paths!({
                         if layout.abi.is_uninhabited() {
                             // Use this error even for the other intrinsics as it is more precise.
-                            format!("attempted to instantiate uninhabited type `{}`", ty)
+                            format!("attempted to instantiate uninhabited type `{ty}`")
                         } else if requirement == ValidityRequirement::Zero {
-                            format!("attempted to zero-initialize type `{}`, which is invalid", ty)
+                            format!("attempted to zero-initialize type `{ty}`, which is invalid")
                         } else {
                             format!(
-                                "attempted to leave type `{}` uninitialized, which is invalid",
-                                ty
+                                "attempted to leave type `{ty}` uninitialized, which is invalid"
                             )
                         }
                     })
@@ -1045,10 +1044,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
             assert_eq!(
                 fn_abi.args.len(),
                 mir_args + 1,
-                "#[track_caller] fn's must have 1 more argument in their ABI than in their MIR: {:?} {:?} {:?}",
-                instance,
-                fn_span,
-                fn_abi,
+                "#[track_caller] fn's must have 1 more argument in their ABI than in their MIR: {instance:?} {fn_span:?} {fn_abi:?}",
             );
             let location =
                 self.get_caller_location(bx, mir::SourceInfo { span: fn_span, ..source_info });
@@ -1555,7 +1551,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
     fn landing_pad_for_uncached(&mut self, bb: mir::BasicBlock) -> Bx::BasicBlock {
         let llbb = self.llbb(bb);
         if base::wants_new_eh_instructions(self.cx.sess()) {
-            let cleanup_bb = Bx::append_block(self.cx, self.llfn, &format!("funclet_{:?}", bb));
+            let cleanup_bb = Bx::append_block(self.cx, self.llfn, &format!("funclet_{bb:?}"));
             let mut cleanup_bx = Bx::build(self.cx, cleanup_bb);
             let funclet = cleanup_bx.cleanup_pad(None, &[]);
             cleanup_bx.br(llbb);
@@ -1675,7 +1671,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
         match self.cached_llbbs[bb] {
             CachedLlbb::None => {
                 // FIXME(eddyb) only name the block if `fewer_names` is `false`.
-                let llbb = Bx::append_block(self.cx, self.llfn, &format!("{:?}", bb));
+                let llbb = Bx::append_block(self.cx, self.llfn, &format!("{bb:?}"));
                 self.cached_llbbs[bb] = CachedLlbb::Some(llbb);
                 Some(llbb)
             }
diff --git a/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs b/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs
index 34b8d8b5a6f..4167a85ccd5 100644
--- a/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs
+++ b/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs
@@ -337,7 +337,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
         } else {
             Some(match whole_local_var.or(fallback_var.clone()) {
                 Some(var) if var.name != kw::Empty => var.name.to_string(),
-                _ => format!("{:?}", local),
+                _ => format!("{local:?}"),
             })
         };
 
diff --git a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs
index 1f90a28eb8e..e7539da0a05 100644
--- a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs
+++ b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs
@@ -397,8 +397,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
     ) -> OperandRef<'tcx, Bx::Value> {
         assert!(
             self.rvalue_creates_operand(rvalue, DUMMY_SP),
-            "cannot codegen {:?} to operand",
-            rvalue,
+            "cannot codegen {rvalue:?} to operand",
         );
 
         match *rvalue {
diff --git a/compiler/rustc_codegen_ssa/src/mono_item.rs b/compiler/rustc_codegen_ssa/src/mono_item.rs
index b72a1a07866..6fbf992eda9 100644
--- a/compiler/rustc_codegen_ssa/src/mono_item.rs
+++ b/compiler/rustc_codegen_ssa/src/mono_item.rs
@@ -140,8 +140,8 @@ impl<'a, 'tcx: 'a> MonoItemExt<'a, 'tcx> for MonoItem<'tcx> {
             MonoItem::Fn(instance) => {
                 format!("Fn({:?}, {})", instance.def, instance.args.as_ptr().addr())
             }
-            MonoItem::Static(id) => format!("Static({:?})", id),
-            MonoItem::GlobalAsm(id) => format!("GlobalAsm({:?})", id),
+            MonoItem::Static(id) => format!("Static({id:?})"),
+            MonoItem::GlobalAsm(id) => format!("GlobalAsm({id:?})"),
         }
     }
 }
diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs
index 48c6c75bb1a..98e561b0aef 100644
--- a/compiler/rustc_codegen_ssa/src/target_features.rs
+++ b/compiler/rustc_codegen_ssa/src/target_features.rs
@@ -369,9 +369,9 @@ pub fn from_target_feature(
         // We allow comma separation to enable multiple features.
         target_features.extend(value.as_str().split(',').filter_map(|feature| {
             let Some(feature_gate) = supported_target_features.get(feature) else {
-                let msg = format!("the feature named `{}` is not valid for this target", feature);
+                let msg = format!("the feature named `{feature}` is not valid for this target");
                 let mut err = tcx.sess.struct_span_err(item.span(), msg);
-                err.span_label(item.span(), format!("`{}` is not valid for this target", feature));
+                err.span_label(item.span(), format!("`{feature}` is not valid for this target"));
                 if let Some(stripped) = feature.strip_prefix('+') {
                     let valid = supported_target_features.contains_key(stripped);
                     if valid {
@@ -405,7 +405,7 @@ pub fn from_target_feature(
                     &tcx.sess.parse_sess,
                     feature_gate.unwrap(),
                     item.span(),
-                    format!("the target feature `{}` is currently unstable", feature),
+                    format!("the target feature `{feature}` is currently unstable"),
                 )
                 .emit();
             }