Merge commit '49cd5dd454' into sync_cg_clif-2024-06-30

compiler/rustc_codegen_cranelift/.github/workflows/abi-cafe.yml

@@ -55,10 +55,6 @@ jobs:
       if: matrix.os == 'macos-latest' && matrix.env.TARGET_TRIPLE == 'x86_64-apple-darwin'
       run: rustup set default-host x86_64-apple-darwin
 
-    - name: Select XCode version
-      if: matrix.os == 'macos-latest'
-      run: sudo xcode-select -s /Applications/Xcode_14.3.1.app
-
     - name: Prepare dependencies
       run: ./y.sh prepare
 

compiler/rustc_codegen_cranelift/.github/workflows/main.yml

@@ -66,6 +66,9 @@ jobs:
             env:
               TARGET_TRIPLE: aarch64-unknown-linux-gnu
             apt_deps: gcc-aarch64-linux-gnu qemu-user
+          - os: macos-latest
+            env:
+              TARGET_TRIPLE: aarch64-apple-darwin
           - os: ubuntu-latest
             env:
               TARGET_TRIPLE: s390x-unknown-linux-gnu
@@ -108,10 +111,6 @@ jobs:
         sudo apt-get update
         sudo apt-get install -y ${{ matrix.apt_deps }}
 
-    - name: Select XCode version
-      if: matrix.os == 'macos-latest'
-      run: sudo xcode-select -s /Applications/Xcode_14.3.1.app
-
     - name: Prepare dependencies
       run: ./y.sh prepare
 
@@ -214,6 +213,9 @@ jobs:
           - os: macos-latest
             env:
               TARGET_TRIPLE: x86_64-apple-darwin
+          - os: macos-latest
+            env:
+              TARGET_TRIPLE: aarch64-apple-darwin
           # cross-compile from Linux to Windows using mingw
           - os: ubuntu-latest
             env:
@@ -248,10 +250,6 @@ jobs:
         sudo apt-get update
         sudo apt-get install -y gcc-mingw-w64-x86-64
 
-    - name: Select XCode version
-      if: matrix.os == 'macos-latest'
-      run: sudo xcode-select -s /Applications/Xcode_14.3.1.app
-
     - name: Prepare dependencies
       run: ./y.sh prepare
 
@@ -282,7 +280,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     if: ${{ github.ref == 'refs/heads/master' }}
-    needs: [rustfmt, test, bench, dist]
+    # FIXME add the bench job back to the dependency list once rust-lang/rust#125493 gets merged
+    needs: [rustfmt, test, dist]
 
     permissions:
       contents: write # for creating the dev tag and release

compiler/rustc_codegen_cranelift/Cargo.lock

@@ -46,18 +46,18 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "cranelift-bforest"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79b27922a6879b5b5361d0a084cb0b1941bf109a98540addcb932da13b68bed4"
+checksum = "0b6b33d7e757a887989eb18b35712b2a67d96171ec3149d1bfb657b29b7b367c"
 dependencies = [
  "cranelift-entity",
 ]
 
 [[package]]
 name = "cranelift-codegen"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "304c455b28bf56372729acb356afbb55d622f2b0f2f7837aa5e57c138acaac4d"
+checksum = "b9acf15cb22be42d07c3b57d7856329cb228b7315d385346149df2566ad5e4aa"
 dependencies = [
  "bumpalo",
  "cranelift-bforest",
@@ -70,45 +70,46 @@ dependencies = [
  "hashbrown 0.14.3",
  "log",
  "regalloc2",
+ "rustc-hash",
  "smallvec",
  "target-lexicon",
 ]
 
 [[package]]
 name = "cranelift-codegen-meta"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1653c56b99591d07f67c5ca7f9f25888948af3f4b97186bff838d687d666f613"
+checksum = "e934d301392b73b3f8b0540391fb82465a0f179a3cee7c726482ac4727efcc97"
 dependencies = [
  "cranelift-codegen-shared",
 ]
 
 [[package]]
 name = "cranelift-codegen-shared"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5b6a9cf6b6eb820ee3f973a0db313c05dc12d370f37b4fe9630286e1672573f"
+checksum = "8afb2a2566b3d54b854dfb288b3b187f6d3d17d6f762c92898207eba302931da"
 
 [[package]]
 name = "cranelift-control"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9d06e6bf30075fb6bed9e034ec046475093392eea1aff90eb5c44c4a033d19a"
+checksum = "0100f33b704cdacd01ad66ff41f8c5030d57cbff078e2a4e49ab1822591299fa"
 dependencies = [
  "arbitrary",
 ]
 
 [[package]]
 name = "cranelift-entity"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29be04f931b73cdb9694874a295027471817f26f26d2f0ebe5454153176b6e3a"
+checksum = "a8cfdc315e5d18997093e040a8d234bea1ac1e118a716d3e30f40d449e78207b"
 
 [[package]]
 name = "cranelift-frontend"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a07fd7393041d7faa2f37426f5dc7fc04003b70988810e8c063beefeff1cd8f9"
+checksum = "0f74b84f16af2e982b0c0c72233503d9d55cbfe3865dbe807ca28dc6642a28b5"
 dependencies = [
  "cranelift-codegen",
  "log",
@@ -118,15 +119,15 @@ dependencies = [
 
 [[package]]
 name = "cranelift-isle"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f341d7938caa6dff8149dac05bb2b53fc680323826b83b4cf175ab9f5139a3c9"
+checksum = "adf306d3dde705fb94bd48082f01d38c4ededc74293a4c007805f610bf08bc6e"
 
 [[package]]
 name = "cranelift-jit"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42733555e06433f1461570e09dbd756dafc228b4dac75c597cdbdc518de07522"
+checksum = "f5c5cfb8bbd3339cd25cca30e7516ff8fe5cb1feeddde6980cc4d5ef34df97bb"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -144,9 +145,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-module"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84950af02bb85f3da764d53a953b43bb29a732e793d4fe24637a61591be9a024"
+checksum = "7c9b0d4269b36fd858e6d8f20cd4938941186fb831488c361888cb2d6b33a9a6"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -155,9 +156,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-native"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82af6066e6448d26eeabb7aa26a43f7ff79f8217b06bade4ee6ef230aecc8880"
+checksum = "1ea0ebdef7aff4a79bcbc8b6495f31315f16b3bf311152f472eaa8d679352581"
 dependencies = [
  "cranelift-codegen",
  "libc",
@@ -166,9 +167,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-object"
-version = "0.107.0"
+version = "0.109.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00af56107039ed150391df6f753298c7b08f2b6a2e0727d216b5fa599d684d8b"
+checksum = "19e33439ec20db058bc7cc3410f9748ab1ad90a35cef713d625c736f43e3820d"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -278,9 +279,9 @@ checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
 
 [[package]]
 name = "object"
-version = "0.33.0"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8dd6c0cdf9429bce006e1362bfce61fa1bfd8c898a643ed8d2b471934701d3d"
+checksum = "081b846d1d56ddfc18fdf1a922e4f6e07a11768ea1b92dec44e42b72712ccfce"
 dependencies = [
  "crc32fast",
  "hashbrown 0.14.3",
@@ -410,10 +411,11 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "wasmtime-jit-icache-coherence"
-version = "20.0.0"
+version = "22.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a9f93a3289057b26dc75eb84d6e60d7694f7d169c7c09597495de6e016a13ff"
+checksum = "5afe2f0499542f9a4bcfa1b55bfdda803b6ade4e7c93c6b99e0f39dba44b0a91"
 dependencies = [
+ "anyhow",
  "cfg-if",
  "libc",
  "windows-sys",

compiler/rustc_codegen_cranelift/Cargo.toml

@@ -8,15 +8,15 @@ crate-type = ["dylib"]
 
 [dependencies]
 # These have to be in sync with each other
-cranelift-codegen = { version = "0.107.0", default-features = false, features = ["std", "unwind", "all-arch"] }
+cranelift-codegen = { version = "0.109.0", default-features = false, features = ["std", "unwind", "all-arch"] }
-cranelift-frontend = { version = "0.107.0" }
+cranelift-frontend = { version = "0.109.0" }
-cranelift-module = { version = "0.107.0" }
+cranelift-module = { version = "0.109.0" }
-cranelift-native = { version = "0.107.0" }
+cranelift-native = { version = "0.109.0" }
-cranelift-jit = { version = "0.107.0", optional = true }
+cranelift-jit = { version = "0.109.0", optional = true }
-cranelift-object = { version = "0.107.0" }
+cranelift-object = { version = "0.109.0" }
 target-lexicon = "0.12.0"
 gimli = { version = "0.28", default-features = false, features = ["write"]}
-object = { version = "0.33", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] }
+object = { version = "0.36", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] }
 
 indexmap = "2.0.0"
 libloading = { version = "0.8.0", optional = true }

compiler/rustc_codegen_cranelift/Readme.md

@@ -70,7 +70,7 @@ For more docs on how to build and test see [build_system/usage.txt](build_system
 |FreeBSD|✅[^no-rustup]|❓|❓|❓|
 |AIX|❌[^xcoff]|N/A|N/A|❌[^xcoff]|
 |Other unixes|❓|❓|❓|❓|
-|macOS|✅|❌[^apple-silicon]|N/A|N/A|
+|macOS|✅|✅[^no-rustup]|N/A|N/A|
 |Windows|✅[^no-rustup]|❌|N/A|N/A|
 
 ✅: Fully supported and tested
@@ -80,7 +80,6 @@ For more docs on how to build and test see [build_system/usage.txt](build_system
 Not all targets are available as rustup component for nightly. See notes in the platform support matrix.
 
 [^xcoff]: XCOFF object file format is not supported.
-[^apple-silicon]: Tracked in [#1248](https://github.com/rust-lang/rustc_codegen_cranelift/issues/1248).
 [^no-rustup]: Not available as rustup component for nightly. You can build it yourself.
 
 ## Usage

compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs

@@ -267,10 +267,6 @@ fn build_clif_sysroot_for_triple(
             prefix.to_str().unwrap()
         ));
     }
-    rustflags.push("-Zunstable-options".to_owned());
-    for (name, values) in EXTRA_CHECK_CFGS {
-        rustflags.push(check_cfg_arg(name, *values));
-    }
     compiler.rustflags.extend(rustflags);
     let mut build_cmd = STANDARD_LIBRARY.build(&compiler, dirs);
     if channel == "release" {
@@ -330,34 +326,3 @@ fn build_rtstartup(dirs: &Dirs, compiler: &Compiler) -> Option<SysrootTarget> {
 
     Some(target_libs)
 }
-
-// Copied from https://github.com/rust-lang/rust/blob/4fd98a4b1b100f5329c6efae18031791f64372d2/src/bootstrap/src/utils/helpers.rs#L569-L585
-/// Create a `--check-cfg` argument invocation for a given name
-/// and it's values.
-fn check_cfg_arg(name: &str, values: Option<&[&str]>) -> String {
-    // Creating a string of the values by concatenating each value:
-    // ',values("tvos","watchos")' or '' (nothing) when there are no values.
-    let next = match values {
-        Some(values) => {
-            let mut tmp = values.iter().flat_map(|val| [",", "\"", val, "\""]).collect::<String>();
-
-            tmp.insert_str(1, "values(");
-            tmp.push(')');
-            tmp
-        }
-        None => "".to_string(),
-    };
-    format!("--check-cfg=cfg({name}{next})")
-}
-
-const EXTRA_CHECK_CFGS: &[(&str, Option<&[&str]>)] = &[
-    ("bootstrap", None),
-    ("stdarch_intel_sde", None),
-    ("no_fp_fmt_parse", None),
-    ("no_global_oom_handling", None),
-    ("no_rc", None),
-    ("no_sync", None),
-    ("netbsd10", None),
-    ("backtrace_in_libstd", None),
-    ("target_arch", Some(&["xtensa"])),
-];

compiler/rustc_codegen_cranelift/build_system/tests.rs

@@ -329,7 +329,6 @@ pub(crate) fn run_tests(
 struct TestRunner<'a> {
     is_native: bool,
     jit_supported: bool,
-    use_unstable_features: bool,
     skip_tests: &'a [&'a str],
     dirs: Dirs,
     target_compiler: Compiler,
@@ -361,15 +360,7 @@ impl<'a> TestRunner<'a> {
             && target_compiler.triple.contains("x86_64")
             && !target_compiler.triple.contains("windows");
 
-        Self {
+        Self { is_native, jit_supported, skip_tests, dirs, target_compiler, stdlib_source }
-            is_native,
-            jit_supported,
-            use_unstable_features,
-            skip_tests,
-            dirs,
-            target_compiler,
-            stdlib_source,
-        }
     }
 
     fn run_testsuite(&self, tests: &[TestCase]) {
@@ -393,31 +384,13 @@ impl<'a> TestRunner<'a> {
             match *cmd {
                 TestCaseCmd::Custom { func } => func(self),
                 TestCaseCmd::BuildLib { source, crate_types } => {
-                    if self.use_unstable_features {
                     self.run_rustc([source, "--crate-type", crate_types]);
-                    } else {
-                        self.run_rustc([
-                            source,
-                            "--crate-type",
-                            crate_types,
-                            "--cfg",
-                            "no_unstable_features",
-                        ]);
-                    }
                 }
                 TestCaseCmd::BuildBin { source } => {
-                    if self.use_unstable_features {
                     self.run_rustc([source]);
-                    } else {
-                        self.run_rustc([source, "--cfg", "no_unstable_features"]);
-                    }
                 }
                 TestCaseCmd::BuildBinAndRun { source, args } => {
-                    if self.use_unstable_features {
                     self.run_rustc([source]);
-                    } else {
-                        self.run_rustc([source, "--cfg", "no_unstable_features"]);
-                    }
                     self.run_out_command(
                         source.split('/').last().unwrap().split('.').next().unwrap(),
                         args,
@@ -472,7 +445,6 @@ impl<'a> TestRunner<'a> {
         cmd.arg(&self.target_compiler.triple);
         cmd.arg("-Cpanic=abort");
         cmd.arg("-Zunstable-options");
-        cmd.arg("--check-cfg=cfg(no_unstable_features)");
         cmd.arg("--check-cfg=cfg(jit)");
         cmd.args(args);
         cmd

compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs

@@ -333,12 +333,7 @@ fn main() {
     #[cfg(all(not(jit), not(all(windows, target_env = "gnu"))))]
     test_tls();
 
-    #[cfg(all(
+    #[cfg(all(not(jit), target_arch = "x86_64", any(target_os = "linux", target_os = "macos")))]
-        not(jit),
-        not(no_unstable_features),
-        target_arch = "x86_64",
-        any(target_os = "linux", target_os = "macos")
-    ))]
     unsafe {
         global_asm_test();
         naked_test();
@@ -367,17 +362,12 @@ fn stack_val_align() {
     assert_eq!(&a as *const Foo as usize % 8192, 0);
 }
 
-#[cfg(all(
+#[cfg(all(not(jit), target_arch = "x86_64", any(target_os = "linux", target_os = "macos")))]
-    not(jit),
-    not(no_unstable_features),
-    target_arch = "x86_64",
-    any(target_os = "linux", target_os = "macos")
-))]
 extern "C" {
     fn global_asm_test();
 }
 
-#[cfg(all(not(jit), not(no_unstable_features), target_arch = "x86_64", target_os = "linux"))]
+#[cfg(all(not(jit), target_arch = "x86_64", target_os = "linux"))]
 global_asm! {
     "
     .global global_asm_test
@@ -387,7 +377,7 @@ global_asm! {
     "
 }
 
-#[cfg(all(not(jit), not(no_unstable_features), target_arch = "x86_64", target_os = "macos"))]
+#[cfg(all(not(jit), target_arch = "x86_64", target_os = "macos"))]
 global_asm! {
     "
     .global _global_asm_test
@@ -397,7 +387,7 @@ global_asm! {
     "
 }
 
-#[cfg(all(not(jit), not(no_unstable_features), target_arch = "x86_64"))]
+#[cfg(all(not(jit), target_arch = "x86_64"))]
 #[naked]
 extern "C" fn naked_test() {
     unsafe {

compiler/rustc_codegen_cranelift/example/std_example.rs

@@ -251,6 +251,9 @@ unsafe fn test_simd() {
     test_mm_add_epi8();
     test_mm_add_pd();
     test_mm_cvtepi8_epi16();
+    #[cfg(not(jit))]
+    test_mm_cvtps_epi32();
+    test_mm_cvttps_epi32();
     test_mm_cvtsi128_si64();
 
     test_mm_extract_epi8();
@@ -476,6 +479,41 @@ unsafe fn test_mm256_permutevar8x32_epi32() {
     assert_eq_m256i(r, e);
 }
 
+#[cfg(target_arch = "x86_64")]
+#[target_feature(enable = "avx2")]
+#[cfg(not(jit))]
+unsafe fn test_mm_cvtps_epi32() {
+    let floats: [f32; 4] = [1.5, -2.5, i32::MAX as f32 + 1.0, f32::NAN];
+
+    let float_vec = _mm_loadu_ps(floats.as_ptr());
+    let int_vec = _mm_cvtps_epi32(float_vec);
+
+    let mut ints: [i32; 4] = [0; 4];
+    _mm_storeu_si128(ints.as_mut_ptr() as *mut __m128i, int_vec);
+
+    // this is very different from `floats.map(|f| f as i32)`!
+    let expected_ints: [i32; 4] = [2, -2, i32::MIN, i32::MIN];
+
+    assert_eq!(ints, expected_ints);
+}
+
+#[cfg(target_arch = "x86_64")]
+#[target_feature(enable = "avx2")]
+unsafe fn test_mm_cvttps_epi32() {
+    let floats: [f32; 4] = [1.5, -2.5, i32::MAX as f32 + 1.0, f32::NAN];
+
+    let float_vec = _mm_loadu_ps(floats.as_ptr());
+    let int_vec = _mm_cvttps_epi32(float_vec);
+
+    let mut ints: [i32; 4] = [0; 4];
+    _mm_storeu_si128(ints.as_mut_ptr() as *mut __m128i, int_vec);
+
+    // this is very different from `floats.map(|f| f as i32)`!
+    let expected_ints: [i32; 4] = [1, -2, i32::MIN, i32::MIN];
+
+    assert_eq!(ints, expected_ints);
+}
+
 fn test_checked_mul() {
     let u: Option<u8> = u8::from_str_radix("1000", 10).ok();
     assert_eq!(u, None);

compiler/rustc_codegen_cranelift/patches/stdlib-lock.toml

@@ -4,12 +4,12 @@ version = 3
 
 [[package]]
 name = "addr2line"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
+checksum = "6e4503c46a5c0c7844e948c9a4d6acd9f50cccb4de1c48eb9e291ea17470c678"
 dependencies = [
  "compiler_builtins",
- "gimli",
+ "gimli 0.29.0",
  "rustc-std-workspace-alloc",
  "rustc-std-workspace-core",
 ]
@@ -133,6 +133,17 @@ dependencies = [
  "rustc-std-workspace-core",
 ]
 
+[[package]]
+name = "gimli"
+version = "0.29.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"
+dependencies = [
+ "compiler_builtins",
+ "rustc-std-workspace-alloc",
+ "rustc-std-workspace-core",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.14.3"
@@ -147,9 +158,9 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.3.9"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
+checksum = "fbf6a919d6cf397374f7dfeeea91d974c7c0a7221d0d0f4f20d859d329e53fcc"
 dependencies = [
  "compiler_builtins",
  "rustc-std-workspace-alloc",
@@ -189,9 +200,9 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.32.1"
+version = "0.36.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9cf5f9dd3933bd50a9e1f149ec995f39ae2c496d31fd772c1fd45ebc27e902b0"
+checksum = "576dfe1fc8f9df304abb159d767a29d0476f7750fbf8aa7ad07816004a207434"
 dependencies = [
  "compiler_builtins",
  "memchr",
@@ -286,9 +297,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-demangle"
-version = "0.1.23"
+version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
+checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 dependencies = [
  "compiler_builtins",
  "rustc-std-workspace-core",
@@ -396,8 +407,6 @@ dependencies = [
  "core",
  "getopts",
  "libc",
- "panic_abort",
- "panic_unwind",
  "std",
 ]
 
@@ -430,7 +439,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37a19a21a537f635c16c7576f22d0f2f7d63353c1337ad4ce0d8001c7952a25b"
 dependencies = [
  "compiler_builtins",
- "gimli",
+ "gimli 0.28.1",
  "rustc-std-workspace-core",
 ]
 

compiler/rustc_codegen_cranelift/rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2024-05-13"
+channel = "nightly-2024-06-30"
 components = ["rust-src", "rustc-dev", "llvm-tools"]

compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh

@@ -36,9 +36,8 @@ rm tests/ui/parser/unclosed-delimiter-in-dep.rs # submodule contains //~ERROR
 rm tests/ui/asm/x86_64/evex512-implicit-feature.rs # unimplemented AVX512 x86 vendor intrinsic
 
 # exotic linkages
-rm tests/ui/issues/issue-33992.rs # unsupported linkages
+rm tests/incremental/hashes/function_interfaces.rs
-rm tests/incremental/hashes/function_interfaces.rs # same
+rm tests/incremental/hashes/statics.rs
-rm tests/incremental/hashes/statics.rs # same
 
 # variadic arguments
 rm tests/ui/abi/mir/mir_codegen_calls_variadic.rs # requires float varargs
@@ -60,13 +59,20 @@ rm tests/ui/asm/x86_64/goto.rs # inline asm labels not supported
 
 # requires LTO
 rm -r tests/run-make/cdylib
-rm -r tests/run-make/issue-14500
-rm -r tests/run-make/issue-64153
 rm -r tests/run-make/codegen-options-parsing
 rm -r tests/run-make/lto-*
 rm -r tests/run-make/reproducible-build-2
 rm -r tests/run-make/issue-109934-lto-debuginfo
 rm -r tests/run-make/no-builtins-lto
+rm -r tests/run-make/reachable-extern-fn-available-lto
+
+# coverage instrumentation
+rm tests/ui/consts/precise-drop-with-coverage.rs
+rm tests/ui/issues/issue-85461.rs
+rm -r tests/ui/instrument-coverage/
+
+# missing f16/f128 support
+rm tests/ui/half-open-range-patterns/half-open-range-pats-semantics.rs
 
 # optimization tests
 # ==================
@@ -74,6 +80,7 @@ rm tests/ui/codegen/issue-28950.rs # depends on stack size optimizations
 rm tests/ui/codegen/init-large-type.rs # same
 rm tests/ui/issues/issue-40883.rs # same
 rm -r tests/run-make/fmt-write-bloat/ # tests an optimization
+rm tests/ui/statics/const_generics.rs # same
 
 # backend specific tests
 # ======================
@@ -85,6 +92,7 @@ rm -r tests/run-make/sepcomp-cci-copies # same
 rm -r tests/run-make/volatile-intrinsics # same
 rm -r tests/run-make/llvm-ident # same
 rm -r tests/run-make/no-builtins-attribute # same
+rm -r tests/run-make/pgo-gen-no-imp-symbols # same
 rm tests/ui/abi/stack-protector.rs # requires stack protector support
 rm -r tests/run-make/emit-stack-sizes # requires support for -Z emit-stack-sizes
 rm -r tests/run-make/optimization-remarks-dir # remarks are LLVM specific
@@ -93,13 +101,14 @@ rm -r tests/run-make/print-to-output # requires --print relocation-models
 # requires asm, llvm-ir and/or llvm-bc emit support
 # =============================================
 rm -r tests/run-make/emit-named-files
-rm -r tests/run-make/issue-30063
 rm -r tests/run-make/multiple-emits
 rm -r tests/run-make/output-type-permutations
 rm -r tests/run-make/emit-to-stdout
 rm -r tests/run-make/compressed-debuginfo
 rm -r tests/run-make/symbols-include-type-name
-
+rm -r tests/run-make/notify-all-emit-artifacts
+rm -r tests/run-make/reset-codegen-1
+rm -r tests/run-make/inline-always-many-cgu
 
 # giving different but possibly correct results
 # =============================================
@@ -118,6 +127,7 @@ rm -r tests/run-make/compiler-builtins # Expects lib/rustlib/src/rust to contain
 # ============
 rm -r tests/run-make/extern-fn-explicit-align # argument alignment not yet supported
 rm -r tests/run-make/panic-abort-eh_frame # .eh_frame emitted with panic=abort
+rm tests/ui/deprecation/deprecated_inline_threshold.rs # missing deprecation warning for -Cinline-threshold
 
 # bugs in the test suite
 # ======================
@@ -148,12 +158,12 @@ index 9607ff02f96..b7d97caf9a2 100644
 --- a/src/tools/run-make-support/src/rustdoc.rs
 +++ b/src/tools/run-make-support/src/rustdoc.rs
 @@ -34,8 +34,6 @@ pub fn bare() -> Self {
-     /// Construct a \`rustdoc\` invocation with \`-L \$(TARGET_RPATH_DIR)\` set.
+     #[track_caller]
      pub fn new() -> Self {
          let mut cmd = setup_common();
--        let target_rpath_dir = env::var_os("TARGET_RPATH_DIR").unwrap();
+-        let target_rpath_dir = env_var_os("TARGET_RPATH_DIR");
 -        cmd.arg(format!("-L{}", target_rpath_dir.to_string_lossy()));
-         Self { cmd, stdin: None }
+         Self { cmd }
      }
 
 EOF

compiler/rustc_codegen_cranelift/src/abi/mod.rs

@@ -5,8 +5,9 @@ mod pass_mode;
 mod returning;
 
 use std::borrow::Cow;
+use std::mem;
 
-use cranelift_codegen::ir::SigRef;
+use cranelift_codegen::ir::{ArgumentPurpose, SigRef};
 use cranelift_codegen::isa::CallConv;
 use cranelift_module::ModuleError;
 use rustc_codegen_ssa::errors::CompilerBuiltinsCannotCall;
@@ -17,7 +18,7 @@ use rustc_middle::ty::TypeVisitableExt;
 use rustc_monomorphize::is_call_from_compiler_builtins_to_upstream_monomorphization;
 use rustc_session::Session;
 use rustc_span::source_map::Spanned;
-use rustc_target::abi::call::{Conv, FnAbi};
+use rustc_target::abi::call::{Conv, FnAbi, PassMode};
 use rustc_target::spec::abi::Abi;
 
 use self::pass_mode::*;
@@ -487,6 +488,7 @@ pub(crate) fn codegen_terminator_call<'tcx>(
     let args = args;
     assert_eq!(fn_abi.args.len(), args.len());
 
+    #[derive(Copy, Clone)]
     enum CallTarget {
         Direct(FuncRef),
         Indirect(SigRef, Value),
@@ -532,7 +534,7 @@ pub(crate) fn codegen_terminator_call<'tcx>(
     };
 
     self::returning::codegen_with_call_return_arg(fx, &fn_abi.ret, ret_place, |fx, return_ptr| {
-        let call_args = return_ptr
+        let mut call_args = return_ptr
             .into_iter()
             .chain(first_arg_override.into_iter())
             .chain(
@@ -545,40 +547,17 @@ pub(crate) fn codegen_terminator_call<'tcx>(
             )
             .collect::<Vec<Value>>();
 
-        let call_inst = match func_ref {
+        // FIXME: Find a cleaner way to support varargs.
+        if fn_abi.c_variadic {
+            adjust_call_for_c_variadic(fx, &fn_abi, source_info, func_ref, &mut call_args);
+        }
+
+        match func_ref {
             CallTarget::Direct(func_ref) => fx.bcx.ins().call(func_ref, &call_args),
             CallTarget::Indirect(sig, func_ptr) => {
                 fx.bcx.ins().call_indirect(sig, func_ptr, &call_args)
             }
-        };
-
-        // FIXME find a cleaner way to support varargs
-        if fn_sig.c_variadic() {
-            if !matches!(fn_sig.abi(), Abi::C { .. }) {
-                fx.tcx.dcx().span_fatal(
-                    source_info.span,
-                    format!("Variadic call for non-C abi {:?}", fn_sig.abi()),
-                );
         }
-            let sig_ref = fx.bcx.func.dfg.call_signature(call_inst).unwrap();
-            let abi_params = call_args
-                .into_iter()
-                .map(|arg| {
-                    let ty = fx.bcx.func.dfg.value_type(arg);
-                    if !ty.is_int() {
-                        // FIXME set %al to upperbound on float args once floats are supported
-                        fx.tcx.dcx().span_fatal(
-                            source_info.span,
-                            format!("Non int ty {:?} for variadic call", ty),
-                        );
-                    }
-                    AbiParam::new(ty)
-                })
-                .collect::<Vec<AbiParam>>();
-            fx.bcx.func.dfg.signatures[sig_ref].params = abi_params;
-        }
-
-        call_inst
     });
 
     if let Some(dest) = target {
@@ -587,6 +566,100 @@ pub(crate) fn codegen_terminator_call<'tcx>(
     } else {
         fx.bcx.ins().trap(TrapCode::UnreachableCodeReached);
     }
+
+    fn adjust_call_for_c_variadic<'tcx>(
+        fx: &mut FunctionCx<'_, '_, 'tcx>,
+        fn_abi: &FnAbi<'tcx, Ty<'tcx>>,
+        source_info: mir::SourceInfo,
+        target: CallTarget,
+        call_args: &mut Vec<Value>,
+    ) {
+        if fn_abi.conv != Conv::C {
+            fx.tcx.dcx().span_fatal(
+                source_info.span,
+                format!("Variadic call for non-C abi {:?}", fn_abi.conv),
+            );
+        }
+        let sig_ref = match target {
+            CallTarget::Direct(func_ref) => fx.bcx.func.dfg.ext_funcs[func_ref].signature,
+            CallTarget::Indirect(sig_ref, _) => sig_ref,
+        };
+        // `mem::take()` the `params` so that `fx.bcx` can be used below.
+        let mut abi_params = mem::take(&mut fx.bcx.func.dfg.signatures[sig_ref].params);
+
+        // Recalculate the parameters in the signature to ensure the signature contains the variadic arguments.
+        let has_return_arg = matches!(fn_abi.ret.mode, PassMode::Indirect { .. });
+        // Drop everything except the return argument (if there is one).
+        abi_params.truncate(if has_return_arg { 1 } else { 0 });
+        // Add the fixed arguments.
+        abi_params.extend(
+            fn_abi.args[..fn_abi.fixed_count as usize]
+                .iter()
+                .flat_map(|arg_abi| arg_abi.get_abi_param(fx.tcx).into_iter()),
+        );
+        let fixed_arg_count = abi_params.len();
+        // Add the variadic arguments.
+        abi_params.extend(
+            fn_abi.args[fn_abi.fixed_count as usize..]
+                .iter()
+                .flat_map(|arg_abi| arg_abi.get_abi_param(fx.tcx).into_iter()),
+        );
+
+        if fx.tcx.sess.target.is_like_osx && fx.tcx.sess.target.arch == "aarch64" {
+            // Add any padding arguments needed for Apple AArch64.
+            // There's no need to pad the argument list unless variadic arguments are actually being
+            // passed.
+            if abi_params.len() > fixed_arg_count {
+                // 128-bit integers take 2 registers, and everything else takes 1.
+                // FIXME: Add support for non-integer types
+                // This relies on the checks below to ensure all arguments are integer types and
+                // that the ABI is "C".
+                // The return argument isn't counted as it goes in its own dedicated register.
+                let integer_registers_used: usize = abi_params
+                    [if has_return_arg { 1 } else { 0 }..fixed_arg_count]
+                    .iter()
+                    .map(|arg| if arg.value_type.bits() == 128 { 2 } else { 1 })
+                    .sum();
+                // The ABI uses 8 registers before it starts pushing arguments to the stack. Pad out
+                // the registers if needed to ensure the variadic arguments are passed on the stack.
+                if integer_registers_used < 8 {
+                    abi_params.splice(
+                        fixed_arg_count..fixed_arg_count,
+                        (integer_registers_used..8).map(|_| AbiParam::new(types::I64)),
+                    );
+                    call_args.splice(
+                        fixed_arg_count..fixed_arg_count,
+                        (integer_registers_used..8).map(|_| fx.bcx.ins().iconst(types::I64, 0)),
+                    );
+                }
+            }
+
+            // `StructArgument` is not currently used by the `aarch64` ABI, and is therefore not
+            // handled when calculating how many padding arguments to use. Assert that this remains
+            // the case.
+            assert!(abi_params.iter().all(|param| matches!(
+                param.purpose,
+                // The only purposes used are `Normal` and `StructReturn`.
+                ArgumentPurpose::Normal | ArgumentPurpose::StructReturn
+            )));
+        }
+
+        // Check all parameters are integers.
+        for param in abi_params.iter() {
+            if !param.value_type.is_int() {
+                // FIXME: Set %al to upperbound on float args once floats are supported.
+                fx.tcx.dcx().span_fatal(
+                    source_info.span,
+                    format!("Non int ty {:?} for variadic call", param.value_type),
+                );
+            }
+        }
+
+        assert_eq!(abi_params.len(), call_args.len());
+
+        // Put the `AbiParam`s back in the signature.
+        fx.bcx.func.dfg.signatures[sig_ref].params = abi_params;
+    }
 }
 
 pub(crate) fn codegen_drop<'tcx>(

compiler/rustc_codegen_cranelift/src/allocator.rs

@@ -11,15 +11,10 @@ use rustc_session::config::OomStrategy;
 use crate::prelude::*;
 
 /// Returns whether an allocator shim was created
-pub(crate) fn codegen(
+pub(crate) fn codegen(tcx: TyCtxt<'_>, module: &mut dyn Module) -> bool {
-    tcx: TyCtxt<'_>,
-    module: &mut impl Module,
-    unwind_context: &mut UnwindContext,
-) -> bool {
     let Some(kind) = allocator_kind_for_codegen(tcx) else { return false };
     codegen_inner(
         module,
-        unwind_context,
         kind,
         tcx.alloc_error_handler_kind(()).unwrap(),
         tcx.sess.opts.unstable_opts.oom,
@@ -28,8 +23,7 @@ pub(crate) fn codegen(
 }
 
 fn codegen_inner(
-    module: &mut impl Module,
+    module: &mut dyn Module,
-    unwind_context: &mut UnwindContext,
     kind: AllocatorKind,
     alloc_error_handler_kind: AllocatorKind,
     oom_strategy: OomStrategy,
@@ -67,7 +61,6 @@ fn codegen_inner(
             };
             crate::common::create_wrapper_function(
                 module,
-                unwind_context,
                 sig,
                 &global_fn_name(method.name),
                 &default_fn_name(method.name),
@@ -82,7 +75,6 @@ fn codegen_inner(
     };
     crate::common::create_wrapper_function(
         module,
-        unwind_context,
         sig,
         "__rust_alloc_error_handler",
         &alloc_error_handler_name(alloc_error_handler_kind),

compiler/rustc_codegen_cranelift/src/base.rs

@@ -249,9 +249,7 @@ pub(crate) fn compile_fn(
     }
 
     // Define debuginfo for function
-    let isa = module.isa();
     let debug_context = &mut cx.debug_context;
-    let unwind_context = &mut cx.unwind_context;
     cx.profiler.generic_activity("generate debug info").run(|| {
         if let Some(debug_context) = debug_context {
             codegened_func.func_debug_cx.unwrap().finalize(
@@ -260,7 +258,6 @@ pub(crate) fn compile_fn(
                 context,
             );
         }
-        unwind_context.add_function(codegened_func.func_id, &context, isa);
     });
 }
 
@@ -909,7 +906,7 @@ fn codegen_stmt<'tcx>(
         | StatementKind::PlaceMention(..)
         | StatementKind::AscribeUserType(..) => {}
 
-        StatementKind::Coverage { .. } => fx.tcx.dcx().fatal("-Zcoverage is unimplemented"),
+        StatementKind::Coverage { .. } => unreachable!(),
         StatementKind::Intrinsic(ref intrinsic) => match &**intrinsic {
             // We ignore `assume` intrinsics, they are only useful for optimizations
             NonDivergingIntrinsic::Assume(_) => {}

compiler/rustc_codegen_cranelift/src/common.rs

@@ -247,7 +247,6 @@ pub(crate) fn type_sign(ty: Ty<'_>) -> bool {
 
 pub(crate) fn create_wrapper_function(
     module: &mut dyn Module,
-    unwind_context: &mut UnwindContext,
     sig: Signature,
     wrapper_name: &str,
     callee_name: &str,
@@ -280,7 +279,6 @@ pub(crate) fn create_wrapper_function(
         bcx.finalize();
     }
     module.define_function(wrapper_func_id, &mut ctx).unwrap();
-    unwind_context.add_function(wrapper_func_id, &ctx, module.isa());
 }
 
 pub(crate) struct FunctionCx<'m, 'clif, 'tcx: 'm> {
@@ -395,6 +393,7 @@ impl<'tcx> FunctionCx<'_, '_, 'tcx> {
                 // FIXME Don't force the size to a multiple of <abi_align> bytes once Cranelift gets
                 // a way to specify stack slot alignment.
                 size: (size + abi_align - 1) / abi_align * abi_align,
+                align_shift: 4,
             });
             Pointer::stack_slot(stack_slot)
         } else {
@@ -405,6 +404,7 @@ impl<'tcx> FunctionCx<'_, '_, 'tcx> {
                 // FIXME Don't force the size to a multiple of <abi_align> bytes once Cranelift gets
                 // a way to specify stack slot alignment.
                 size: (size + align) / abi_align * abi_align,
+                align_shift: 4,
             });
             let base_ptr = self.bcx.ins().stack_addr(self.pointer_type, stack_slot, 0);
             let misalign_offset = self.bcx.ins().urem_imm(base_ptr, i64::from(align));

compiler/rustc_codegen_cranelift/src/driver/aot.rs

@@ -26,6 +26,7 @@ use rustc_session::Session;
 use crate::concurrency_limiter::{ConcurrencyLimiter, ConcurrencyLimiterToken};
 use crate::debuginfo::TypeDebugContext;
 use crate::global_asm::GlobalAsmConfig;
+use crate::unwind_module::UnwindModule;
 use crate::{prelude::*, BackendConfig};
 
 struct ModuleCodegenResult {
@@ -318,7 +319,11 @@ fn produce_final_output_artifacts(
     // These are used in linking steps and will be cleaned up afterward.
 }
 
-fn make_module(sess: &Session, backend_config: &BackendConfig, name: String) -> ObjectModule {
+fn make_module(
+    sess: &Session,
+    backend_config: &BackendConfig,
+    name: String,
+) -> UnwindModule<ObjectModule> {
     let isa = crate::build_isa(sess, backend_config);
 
     let mut builder =
@@ -327,16 +332,15 @@ fn make_module(sess: &Session, backend_config: &BackendConfig, name: String) ->
     // is important, while cg_clif cares more about compilation times. Enabling -Zfunction-sections
     // can easily double the amount of time necessary to perform linking.
     builder.per_function_section(sess.opts.unstable_opts.function_sections.unwrap_or(false));
-    ObjectModule::new(builder)
+    UnwindModule::new(ObjectModule::new(builder), true)
 }
 
 fn emit_cgu(
     output_filenames: &OutputFilenames,
     prof: &SelfProfilerRef,
     name: String,
-    module: ObjectModule,
+    module: UnwindModule<ObjectModule>,
     debug: Option<DebugContext>,
-    unwind_context: UnwindContext,
     global_asm_object_file: Option<PathBuf>,
     producer: &str,
 ) -> Result<ModuleCodegenResult, String> {
@@ -346,8 +350,6 @@ fn emit_cgu(
         debug.emit(&mut product);
     }
 
-    unwind_context.emit(&mut product);
-
     let module_regular = emit_module(
         output_filenames,
         prof,
@@ -494,7 +496,6 @@ fn module_codegen(
 
             let mut cx = crate::CodegenCx::new(
                 tcx,
-                backend_config.clone(),
                 module.isa(),
                 tcx.sess.opts.debuginfo != DebugInfo::None,
                 cgu_name,
@@ -531,13 +532,7 @@ fn module_codegen(
                     }
                 }
             }
-            crate::main_shim::maybe_create_entry_wrapper(
+            crate::main_shim::maybe_create_entry_wrapper(tcx, &mut module, false, cgu.is_primary());
-                tcx,
-                &mut module,
-                &mut cx.unwind_context,
-                false,
-                cgu.is_primary(),
-            );
 
             let cgu_name = cgu.name().as_str().to_owned();
 
@@ -571,7 +566,6 @@ fn module_codegen(
                     cgu_name,
                     module,
                     cx.debug_context,
-                    cx.unwind_context,
                     global_asm_object_file,
                     &producer,
                 )
@@ -665,13 +659,10 @@ pub(crate) fn run_aot(
     });
 
     let mut allocator_module = make_module(tcx.sess, &backend_config, "allocator_shim".to_string());
-    let mut allocator_unwind_context = UnwindContext::new(allocator_module.isa(), true);
+    let created_alloc_shim = crate::allocator::codegen(tcx, &mut allocator_module);
-    let created_alloc_shim =
-        crate::allocator::codegen(tcx, &mut allocator_module, &mut allocator_unwind_context);
 
     let allocator_module = if created_alloc_shim {
-        let mut product = allocator_module.finish();
+        let product = allocator_module.finish();
-        allocator_unwind_context.emit(&mut product);
 
         match emit_module(
             tcx.output_filenames(()),

compiler/rustc_codegen_cranelift/src/driver/jit.rs

@@ -14,12 +14,12 @@ use rustc_session::Session;
 use rustc_span::Symbol;
 
 use crate::debuginfo::TypeDebugContext;
+use crate::unwind_module::UnwindModule;
 use crate::{prelude::*, BackendConfig};
 use crate::{CodegenCx, CodegenMode};
 
 struct JitState {
-    backend_config: BackendConfig,
+    jit_module: UnwindModule<JITModule>,
-    jit_module: JITModule,
 }
 
 thread_local! {
@@ -63,7 +63,7 @@ fn create_jit_module(
     tcx: TyCtxt<'_>,
     backend_config: &BackendConfig,
     hotswap: bool,
-) -> (JITModule, CodegenCx) {
+) -> (UnwindModule<JITModule>, CodegenCx) {
     let crate_info = CrateInfo::new(tcx, "dummy_target_cpu".to_string());
 
     let isa = crate::build_isa(tcx.sess, backend_config);
@@ -72,17 +72,11 @@ fn create_jit_module(
     crate::compiler_builtins::register_functions_for_jit(&mut jit_builder);
     jit_builder.symbol_lookup_fn(dep_symbol_lookup_fn(tcx.sess, crate_info));
     jit_builder.symbol("__clif_jit_fn", clif_jit_fn as *const u8);
-    let mut jit_module = JITModule::new(jit_builder);
+    let mut jit_module = UnwindModule::new(JITModule::new(jit_builder), false);
 
-    let mut cx = crate::CodegenCx::new(
+    let cx = crate::CodegenCx::new(tcx, jit_module.isa(), false, Symbol::intern("dummy_cgu_name"));
-        tcx,
-        backend_config.clone(),
-        jit_module.isa(),
-        false,
-        Symbol::intern("dummy_cgu_name"),
-    );
 
-    crate::allocator::codegen(tcx, &mut jit_module, &mut cx.unwind_context);
+    crate::allocator::codegen(tcx, &mut jit_module);
 
     (jit_module, cx)
 }
@@ -128,7 +122,7 @@ pub(crate) fn run_jit(tcx: TyCtxt<'_>, backend_config: BackendConfig) -> ! {
                         );
                     }
                     CodegenMode::JitLazy => {
-                        codegen_shim(tcx, &mut cx, &mut cached_context, &mut jit_module, inst)
+                        codegen_shim(tcx, &mut cached_context, &mut jit_module, inst)
                     }
                 },
                 MonoItem::Static(def_id) => {
@@ -146,18 +140,11 @@ pub(crate) fn run_jit(tcx: TyCtxt<'_>, backend_config: BackendConfig) -> ! {
         tcx.dcx().fatal("Inline asm is not supported in JIT mode");
     }
 
-    crate::main_shim::maybe_create_entry_wrapper(
+    crate::main_shim::maybe_create_entry_wrapper(tcx, &mut jit_module, true, true);
-        tcx,
-        &mut jit_module,
-        &mut cx.unwind_context,
-        true,
-        true,
-    );
 
     tcx.dcx().abort_if_errors();
 
-    jit_module.finalize_definitions().unwrap();
+    jit_module.finalize_definitions();
-    unsafe { cx.unwind_context.register_jit(&jit_module) };
 
     println!(
         "Rustc codegen cranelift will JIT run the executable, because -Cllvm-args=mode=jit was passed"
@@ -177,12 +164,12 @@ pub(crate) fn run_jit(tcx: TyCtxt<'_>, backend_config: BackendConfig) -> ! {
         call_conv: jit_module.target_config().default_call_conv,
     };
     let start_func_id = jit_module.declare_function("main", Linkage::Import, &start_sig).unwrap();
-    let finalized_start: *const u8 = jit_module.get_finalized_function(start_func_id);
+    let finalized_start: *const u8 = jit_module.module.get_finalized_function(start_func_id);
 
     LAZY_JIT_STATE.with(|lazy_jit_state| {
         let mut lazy_jit_state = lazy_jit_state.borrow_mut();
         assert!(lazy_jit_state.is_none());
-        *lazy_jit_state = Some(JitState { backend_config, jit_module });
+        *lazy_jit_state = Some(JitState { jit_module });
     });
 
     let f: extern "C" fn(c_int, *const *const c_char) -> c_int =
@@ -268,7 +255,6 @@ fn jit_fn(instance_ptr: *const Instance<'static>, trampoline_ptr: *const u8) ->
             let mut lazy_jit_state = lazy_jit_state.borrow_mut();
             let lazy_jit_state = lazy_jit_state.as_mut().unwrap();
             let jit_module = &mut lazy_jit_state.jit_module;
-            let backend_config = lazy_jit_state.backend_config.clone();
 
             let name = tcx.symbol_name(instance).name;
             let sig = crate::abi::get_function_sig(
@@ -278,7 +264,7 @@ fn jit_fn(instance_ptr: *const Instance<'static>, trampoline_ptr: *const u8) ->
             );
             let func_id = jit_module.declare_function(name, Linkage::Export, &sig).unwrap();
 
-            let current_ptr = jit_module.read_got_entry(func_id);
+            let current_ptr = jit_module.module.read_got_entry(func_id);
 
             // If the function's GOT entry has already been updated to point at something other
             // than the shim trampoline, don't re-jit but just return the new pointer instead.
@@ -288,11 +274,10 @@ fn jit_fn(instance_ptr: *const Instance<'static>, trampoline_ptr: *const u8) ->
                 return current_ptr;
             }
 
-            jit_module.prepare_for_function_redefine(func_id).unwrap();
+            jit_module.module.prepare_for_function_redefine(func_id).unwrap();
 
             let mut cx = crate::CodegenCx::new(
                 tcx,
-                backend_config,
                 jit_module.isa(),
                 false,
                 Symbol::intern("dummy_cgu_name"),
@@ -300,9 +285,8 @@ fn jit_fn(instance_ptr: *const Instance<'static>, trampoline_ptr: *const u8) ->
             codegen_and_compile_fn(tcx, &mut cx, &mut Context::new(), jit_module, instance);
 
             assert!(cx.global_asm.is_empty());
-            jit_module.finalize_definitions().unwrap();
+            jit_module.finalize_definitions();
-            unsafe { cx.unwind_context.register_jit(&jit_module) };
+            jit_module.module.get_finalized_function(func_id)
-            jit_module.get_finalized_function(func_id)
         })
     })
 }
@@ -310,7 +294,7 @@ fn jit_fn(instance_ptr: *const Instance<'static>, trampoline_ptr: *const u8) ->
 fn dep_symbol_lookup_fn(
     sess: &Session,
     crate_info: CrateInfo,
-) -> Box<dyn Fn(&str) -> Option<*const u8>> {
+) -> Box<dyn Fn(&str) -> Option<*const u8> + Send> {
     use rustc_middle::middle::dependency_format::Linkage;
 
     let mut dylib_paths = Vec::new();
@@ -362,9 +346,8 @@ fn dep_symbol_lookup_fn(
 
 fn codegen_shim<'tcx>(
     tcx: TyCtxt<'tcx>,
-    cx: &mut CodegenCx,
     cached_context: &mut Context,
-    module: &mut JITModule,
+    module: &mut UnwindModule<JITModule>,
     inst: Instance<'tcx>,
 ) {
     let pointer_type = module.target_config().pointer_type();
@@ -413,5 +396,4 @@ fn codegen_shim<'tcx>(
     trampoline_builder.ins().return_(&ret_vals);
 
     module.define_function(func_id, context).unwrap();
-    cx.unwind_context.add_function(func_id, context, module.isa());
 }

compiler/rustc_codegen_cranelift/src/inline_asm.rs

@@ -113,13 +113,7 @@ pub(crate) fn codegen_inline_asm_terminator<'tcx>(
                     );
                     let sig =
                         get_function_sig(fx.tcx, fx.target_config.default_call_conv, instance);
-                    create_wrapper_function(
+                    create_wrapper_function(fx.module, sig, &wrapper_name, symbol.name);
-                        fx.module,
-                        &mut fx.cx.unwind_context,
-                        sig,
-                        &wrapper_name,
-                        symbol.name,
-                    );
 
                     CInlineAsmOperand::Symbol { symbol: wrapper_name }
                 } else {
@@ -283,13 +277,7 @@ pub(crate) fn codegen_naked_asm<'tcx>(
                     );
                     let sig =
                         get_function_sig(tcx, module.target_config().default_call_conv, instance);
-                    create_wrapper_function(
+                    create_wrapper_function(module, sig, &wrapper_name, symbol.name);
-                        module,
-                        &mut cx.unwind_context,
-                        sig,
-                        &wrapper_name,
-                        symbol.name,
-                    );
 
                     CInlineAsmOperand::Symbol { symbol: wrapper_name }
                 } else {

compiler/rustc_codegen_cranelift/src/intrinsics/llvm_x86.rs

@@ -459,11 +459,20 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
             intrinsic_args!(fx, args => (a); intrinsic);
             let a = a.load_scalar(fx);
 
+            let value = fx.bcx.ins().x86_cvtt2dq(types::I32X4, a);
+            let cvalue = CValue::by_val(value, ret.layout());
+            ret.write_cvalue(fx, cvalue);
+        }
+        "llvm.x86.sse2.cvtps2dq" => {
+            // https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_cvtps_epi32
+            intrinsic_args!(fx, args => (a); intrinsic);
+            let a = a.load_scalar(fx);
+
             // Using inline asm instead of fcvt_to_sint_sat as unrepresentable values are turned
             // into 0x80000000 for which Cranelift doesn't have a native instruction.
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String(format!("cvttps2dq xmm0, xmm0"))],
+                &[InlineAsmTemplatePiece::String(format!("cvtps2dq xmm0, xmm0"))],
                 &[CInlineAsmOperand::InOut {
                     reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
                     _late: true,
@@ -1416,6 +1425,36 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
             ret.write_cvalue(fx, res);
         }
 
+        "llvm.x86.rdtsc" => {
+            // https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_rdtsc&ig_expand=5273
+
+            let res_place = CPlace::new_stack_slot(
+                fx,
+                fx.layout_of(Ty::new_tup(fx.tcx, &[fx.tcx.types.u32, fx.tcx.types.u32])),
+            );
+            let eax_place = res_place.place_field(fx, FieldIdx::new(0));
+            let edx_place = res_place.place_field(fx, FieldIdx::new(1));
+            codegen_inline_asm_inner(
+                fx,
+                &[InlineAsmTemplatePiece::String("rdtsc".to_string())],
+                &[
+                    CInlineAsmOperand::Out {
+                        reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::ax)),
+                        late: true,
+                        place: Some(eax_place),
+                    },
+                    CInlineAsmOperand::Out {
+                        reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::dx)),
+                        late: true,
+                        place: Some(edx_place),
+                    },
+                ],
+                InlineAsmOptions::NOSTACK | InlineAsmOptions::NOMEM,
+            );
+            let res = res_place.to_cvalue(fx);
+            ret.write_cvalue_transmute(fx, res);
+        }
+
         _ => {
             fx.tcx
                 .dcx()

compiler/rustc_codegen_cranelift/src/lib.rs

@@ -79,6 +79,7 @@ mod pretty_clif;
 mod toolchain;
 mod trap;
 mod unsize;
+mod unwind_module;
 mod value_and_place;
 mod vtable;
 
@@ -130,22 +131,13 @@ struct CodegenCx {
     global_asm: String,
     inline_asm_index: Cell<usize>,
     debug_context: Option<DebugContext>,
-    unwind_context: UnwindContext,
     cgu_name: Symbol,
 }
 
 impl CodegenCx {
-    fn new(
+    fn new(tcx: TyCtxt<'_>, isa: &dyn TargetIsa, debug_info: bool, cgu_name: Symbol) -> Self {
-        tcx: TyCtxt<'_>,
-        backend_config: BackendConfig,
-        isa: &dyn TargetIsa,
-        debug_info: bool,
-        cgu_name: Symbol,
-    ) -> Self {
         assert_eq!(pointer_ty(tcx), isa.pointer_type());
 
-        let unwind_context =
-            UnwindContext::new(isa, matches!(backend_config.codegen_mode, CodegenMode::Aot));
         let debug_context = if debug_info && !tcx.sess.target.options.is_like_windows {
             Some(DebugContext::new(tcx, isa, cgu_name.as_str()))
         } else {
@@ -158,7 +150,6 @@ impl CodegenCx {
             global_asm: String::new(),
             inline_asm_index: Cell::new(0),
             debug_context,
-            unwind_context,
             cgu_name,
         }
     }
@@ -175,7 +166,7 @@ impl CodegenBackend for CraneliftCodegenBackend {
     }
 
     fn init(&self, sess: &Session) {
-        use rustc_session::config::Lto;
+        use rustc_session::config::{InstrumentCoverage, Lto};
         match sess.lto() {
             Lto::No | Lto::ThinLocal => {}
             Lto::Thin | Lto::Fat => {
@@ -183,6 +174,11 @@ impl CodegenBackend for CraneliftCodegenBackend {
             }
         }
 
+        if sess.opts.cg.instrument_coverage() != InstrumentCoverage::No {
+            sess.dcx()
+                .fatal("`-Cinstrument-coverage` is LLVM specific and not supported by Cranelift");
+        }
+
         let mut config = self.config.borrow_mut();
         if config.is_none() {
             let new_config = BackendConfig::from_opts(&sess.opts.cg.llvm_args)

compiler/rustc_codegen_cranelift/src/main_shim.rs

@@ -11,8 +11,7 @@ use crate::prelude::*;
 /// users main function.
 pub(crate) fn maybe_create_entry_wrapper(
     tcx: TyCtxt<'_>,
-    module: &mut impl Module,
+    module: &mut dyn Module,
-    unwind_context: &mut UnwindContext,
     is_jit: bool,
     is_primary_cgu: bool,
 ) {
@@ -36,12 +35,11 @@ pub(crate) fn maybe_create_entry_wrapper(
         return;
     }
 
-    create_entry_fn(tcx, module, unwind_context, main_def_id, is_jit, is_main_fn, sigpipe);
+    create_entry_fn(tcx, module, main_def_id, is_jit, is_main_fn, sigpipe);
 
     fn create_entry_fn(
         tcx: TyCtxt<'_>,
-        m: &mut impl Module,
+        m: &mut dyn Module,
-        unwind_context: &mut UnwindContext,
         rust_main_def_id: DefId,
         ignore_lang_start_wrapper: bool,
         is_main_fn: bool,
@@ -170,7 +168,5 @@ pub(crate) fn maybe_create_entry_wrapper(
         if let Err(err) = m.define_function(cmain_func_id, &mut ctx) {
             tcx.dcx().fatal(format!("entry symbol `{entry_name}` defined multiple times: {err}"));
         }
-
-        unwind_context.add_function(cmain_func_id, &ctx, m.isa());
     }
 }

compiler/rustc_codegen_cranelift/src/unwind_module.rs

@@ -0,0 +1,115 @@
+use cranelift_codegen::control::ControlPlane;
+use cranelift_codegen::ir::{Function, Signature};
+use cranelift_codegen::isa::{TargetFrontendConfig, TargetIsa};
+use cranelift_codegen::{Context, FinalizedMachReloc};
+use cranelift_module::{
+    DataDescription, DataId, FuncId, FuncOrDataId, Linkage, Module, ModuleDeclarations,
+    ModuleResult,
+};
+use cranelift_object::{ObjectModule, ObjectProduct};
+
+use crate::UnwindContext;
+
+/// A wrapper around a [Module] which adds any defined function to the [UnwindContext].
+pub(crate) struct UnwindModule<T> {
+    pub(crate) module: T,
+    unwind_context: UnwindContext,
+}
+
+impl<T: Module> UnwindModule<T> {
+    pub(crate) fn new(module: T, pic_eh_frame: bool) -> Self {
+        let unwind_context = UnwindContext::new(module.isa(), pic_eh_frame);
+        UnwindModule { module, unwind_context }
+    }
+}
+
+impl UnwindModule<ObjectModule> {
+    pub(crate) fn finish(self) -> ObjectProduct {
+        let mut product = self.module.finish();
+        self.unwind_context.emit(&mut product);
+        product
+    }
+}
+
+#[cfg(feature = "jit")]
+impl UnwindModule<cranelift_jit::JITModule> {
+    pub(crate) fn finalize_definitions(&mut self) {
+        self.module.finalize_definitions().unwrap();
+        let prev_unwind_context = std::mem::replace(
+            &mut self.unwind_context,
+            UnwindContext::new(self.module.isa(), false),
+        );
+        unsafe { prev_unwind_context.register_jit(&self.module) };
+    }
+}
+
+impl<T: Module> Module for UnwindModule<T> {
+    fn isa(&self) -> &dyn TargetIsa {
+        self.module.isa()
+    }
+
+    fn declarations(&self) -> &ModuleDeclarations {
+        self.module.declarations()
+    }
+
+    fn get_name(&self, name: &str) -> Option<FuncOrDataId> {
+        self.module.get_name(name)
+    }
+
+    fn target_config(&self) -> TargetFrontendConfig {
+        self.module.target_config()
+    }
+
+    fn declare_function(
+        &mut self,
+        name: &str,
+        linkage: Linkage,
+        signature: &Signature,
+    ) -> ModuleResult<FuncId> {
+        self.module.declare_function(name, linkage, signature)
+    }
+
+    fn declare_anonymous_function(&mut self, signature: &Signature) -> ModuleResult<FuncId> {
+        self.module.declare_anonymous_function(signature)
+    }
+
+    fn declare_data(
+        &mut self,
+        name: &str,
+        linkage: Linkage,
+        writable: bool,
+        tls: bool,
+    ) -> ModuleResult<DataId> {
+        self.module.declare_data(name, linkage, writable, tls)
+    }
+
+    fn declare_anonymous_data(&mut self, writable: bool, tls: bool) -> ModuleResult<DataId> {
+        self.module.declare_anonymous_data(writable, tls)
+    }
+
+    fn define_function_with_control_plane(
+        &mut self,
+        func: FuncId,
+        ctx: &mut Context,
+        ctrl_plane: &mut ControlPlane,
+    ) -> ModuleResult<()> {
+        self.module.define_function_with_control_plane(func, ctx, ctrl_plane)?;
+        self.unwind_context.add_function(func, ctx, self.module.isa());
+        Ok(())
+    }
+
+    fn define_function_bytes(
+        &mut self,
+        _func_id: FuncId,
+        _func: &Function,
+        _alignment: u64,
+        _bytes: &[u8],
+        _relocs: &[FinalizedMachReloc],
+    ) -> ModuleResult<()> {
+        unimplemented!()
+    }
+
+    fn define_data(&mut self, data_id: DataId, data: &DataDescription) -> ModuleResult<()> {
+        self.module.define_data(data_id, data)
+    }
+}