Rollup of 8 pull requests

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

@@ -80,3 +80,10 @@ jobs:
       with:
         name: cg_clif-${{ runner.os }}
         path: cg_clif.tar.xz
+
+    - name: Upload prebuilt cg_clif (cross compile)
+      if: matrix.env.TARGET_TRIPLE == 'x86_64-pc-windows-gnu'
+      uses: actions/upload-artifact@v2
+      with:
+        name: cg_clif-${{ runner.os }}-cross-x86_64-mingw
+        path: cg_clif.tar.xz

compiler/rustc_codegen_cranelift/.vscode/settings.json

@@ -1,6 +1,6 @@
 {
     // source for rustc_* is not included in the rust-src component; disable the errors about this
-    "rust-analyzer.diagnostics.disabled": ["unresolved-extern-crate", "macro-error"],
+    "rust-analyzer.diagnostics.disabled": ["unresolved-extern-crate", "unresolved-macro-call"],
     "rust-analyzer.assist.importMergeBehavior": "last",
     "rust-analyzer.cargo.runBuildScripts": true,
     "rust-analyzer.linkedProjects": [

compiler/rustc_codegen_cranelift/Cargo.lock

@@ -39,16 +39,16 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "cranelift-bforest"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 dependencies = [
  "cranelift-entity",
 ]
 
 [[package]]
 name = "cranelift-codegen"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 dependencies = [
  "byteorder",
  "cranelift-bforest",
@@ -65,27 +65,27 @@ dependencies = [
 
 [[package]]
 name = "cranelift-codegen-meta"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 dependencies = [
  "cranelift-codegen-shared",
  "cranelift-entity",
 ]
 
 [[package]]
 name = "cranelift-codegen-shared"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 
 [[package]]
 name = "cranelift-entity"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 
 [[package]]
 name = "cranelift-frontend"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 dependencies = [
  "cranelift-codegen",
  "log",
@@ -95,8 +95,8 @@ dependencies = [
 
 [[package]]
 name = "cranelift-jit"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -113,8 +113,8 @@ dependencies = [
 
 [[package]]
 name = "cranelift-module"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -125,17 +125,17 @@ dependencies = [
 
 [[package]]
 name = "cranelift-native"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 dependencies = [
  "cranelift-codegen",
  "target-lexicon",
 ]
 
 [[package]]
 name = "cranelift-object"
-version = "0.72.0"
-source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#8e43e96410a14143d368273cf1e708f8094bb8e0"
+version = "0.73.0"
+source = "git+https://github.com/bytecodealliance/wasmtime/?branch=main#45bee40f338c631bff4a799288101ba328c7ad36"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -306,6 +306,7 @@ dependencies = [
  "cranelift-frontend",
  "cranelift-jit",
  "cranelift-module",
+ "cranelift-native",
  "cranelift-object",
  "gimli",
  "indexmap",
@@ -334,9 +335,9 @@ dependencies = [
 
 [[package]]
 name = "target-lexicon"
-version = "0.11.2"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "422045212ea98508ae3d28025bc5aaa2bd4a9cdaecd442a08da2ee620ee9ea95"
+checksum = "64ae3b39281e4b14b8123bdbaddd472b7dfe215e444181f2f9d2443c2444f834"
 
 [[package]]
 name = "thiserror"

compiler/rustc_codegen_cranelift/Cargo.toml

@@ -9,12 +9,13 @@ crate-type = ["dylib"]
 
 [dependencies]
 # These have to be in sync with each other
-cranelift-codegen = { git = "https://github.com/bytecodealliance/wasmtime/", branch = "main", features = ["unwind", "x64"] }
+cranelift-codegen = { git = "https://github.com/bytecodealliance/wasmtime/", branch = "main", features = ["unwind"] }
 cranelift-frontend = { git = "https://github.com/bytecodealliance/wasmtime/", branch = "main" }
 cranelift-module = { git = "https://github.com/bytecodealliance/wasmtime/", branch = "main" }
+cranelift-native = { git = "https://github.com/bytecodealliance/wasmtime/", branch = "main" }
 cranelift-jit = { git = "https://github.com/bytecodealliance/wasmtime/", branch = "main", optional = true }
 cranelift-object = { git = "https://github.com/bytecodealliance/wasmtime/", branch = "main" }
-target-lexicon = "0.11.0"
+target-lexicon = "0.12.0"
 gimli = { version = "0.23.0", default-features = false, features = ["write"]}
 object = { version = "0.23.0", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] }
 
@@ -28,6 +29,7 @@ smallvec = "1.6.1"
 #cranelift-codegen = { path = "../wasmtime/cranelift/codegen" }
 #cranelift-frontend = { path = "../wasmtime/cranelift/frontend" }
 #cranelift-module = { path = "../wasmtime/cranelift/module" }
+#cranelift-native = { path = ../wasmtime/cranelift/native" }
 #cranelift-jit = { path = "../wasmtime/cranelift/jit" }
 #cranelift-object = { path = "../wasmtime/cranelift/object" }
 

compiler/rustc_codegen_cranelift/Readme.md

@@ -44,9 +44,10 @@ This will build your project with rustc_codegen_cranelift instead of the usual L
 
 For additional ways to use rustc_codegen_cranelift like the JIT mode see [usage.md](docs/usage.md).
 
-## Env vars
+## Configuration
 
-See [env_vars.md](docs/env_vars.md) for all env vars used by rustc_codegen_cranelift.
+See the documentation on the `BackendConfig` struct in [config.rs](src/config.rs) for all
+configuration options.
 
 ## Not yet supported
 

compiler/rustc_codegen_cranelift/build_sysroot/Cargo.lock

@@ -56,7 +56,7 @@ dependencies = [
 
 [[package]]
 name = "compiler_builtins"
-version = "0.1.39"
+version = "0.1.40"
 dependencies = [
  "rustc-std-workspace-core",
 ]
@@ -132,9 +132,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.91"
+version = "0.2.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8916b1f6ca17130ec6568feccee27c156ad12037880833a3b842a823236502e7"
+checksum = "18794a8ad5b29321f790b55d93dfba91e125cb1a9edbd4f8e3150acc771c1a5e"
 dependencies = [
  "rustc-std-workspace-core",
 ]
@@ -167,6 +167,7 @@ dependencies = [
 name = "panic_abort"
 version = "0.0.0"
 dependencies = [
+ "alloc",
  "cfg-if",
  "compiler_builtins",
  "core",
@@ -242,10 +243,22 @@ dependencies = [
  "panic_abort",
  "panic_unwind",
  "rustc-demangle",
+ "std_detect",
  "unwind",
  "wasi",
 ]
 
+[[package]]
+name = "std_detect"
+version = "0.1.5"
+dependencies = [
+ "cfg-if",
+ "compiler_builtins",
+ "libc",
+ "rustc-std-workspace-alloc",
+ "rustc-std-workspace-core",
+]
+
 [[package]]
 name = "sysroot"
 version = "0.0.0"

compiler/rustc_codegen_cranelift/build_sysroot/prepare_sysroot_src.sh

@@ -32,7 +32,7 @@ popd
 git clone https://github.com/rust-lang/compiler-builtins.git || echo "rust-lang/compiler-builtins has already been cloned"
 pushd compiler-builtins
 git checkout -- .
-git checkout 0.1.39
+git checkout 0.1.40
 git apply ../../crate_patches/000*-compiler-builtins-*.patch
 popd
 

compiler/rustc_codegen_cranelift/crate_patches/0001-compiler-builtins-Remove-rotate_left-from-Int.patch

@@ -17,8 +17,8 @@ index 06054c8..3bea17b 100644
      fn wrapping_shr(self, other: u32) -> Self;
 -    fn rotate_left(self, other: u32) -> Self;
      fn overflowing_add(self, other: Self) -> (Self, bool);
-     fn aborting_div(self, other: Self) -> Self;
-     fn aborting_rem(self, other: Self) -> Self;
+     fn leading_zeros(self) -> u32;
+ }
 @@ -209,10 +208,6 @@ macro_rules! int_impl_common {
              <Self>::wrapping_shr(self, other)
          }

compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs

@@ -11,6 +11,22 @@ unsafe extern "C" fn my_puts(s: *const i8) {
     puts(s);
 }
 
+macro_rules! assert {
+    ($e:expr) => {
+        if !$e {
+            panic(stringify!(! $e));
+        }
+    };
+}
+
+macro_rules! assert_eq {
+    ($l:expr, $r: expr) => {
+        if $l != $r {
+            panic(stringify!($l != $r));
+        }
+    }
+}
+
 #[lang = "termination"]
 trait Termination {
     fn report(self) -> i32;
@@ -20,8 +36,9 @@ impl Termination for () {
     fn report(self) -> i32 {
         unsafe {
             NUM = 6 * 7 + 1 + (1u8 == 1u8) as u8; // 44
-            *NUM_REF as i32
+            assert_eq!(*NUM_REF as i32, 44);
         }
+        0
     }
 }
 
@@ -82,29 +99,12 @@ fn start<T: Termination + 'static>(
         unsafe { puts(*((argv as usize + 2 * intrinsics::size_of::<*const u8>()) as *const *const i8)); }
     }
 
-    main().report();
-    0
+    main().report() as isize
 }
 
 static mut NUM: u8 = 6 * 7;
 static NUM_REF: &'static u8 = unsafe { &NUM };
 
-macro_rules! assert {
-    ($e:expr) => {
-        if !$e {
-            panic(stringify!(! $e));
-        }
-    };
-}
-
-macro_rules! assert_eq {
-    ($l:expr, $r: expr) => {
-        if $l != $r {
-            panic(stringify!($l != $r));
-        }
-    }
-}
-
 struct Unique<T: ?Sized> {
     pointer: *const T,
     _marker: PhantomData<T>,
@@ -296,6 +296,11 @@ fn main() {
     unsafe {
         global_asm_test();
     }
+
+    // Both statics have a reference that points to the same anonymous allocation.
+    static REF1: &u8 = &42;
+    static REF2: &u8 = REF1;
+    assert_eq!(*REF1, *REF2);
 }
 
 #[cfg(all(not(jit), target_os = "linux"))]

compiler/rustc_codegen_cranelift/example/std_example.rs

@@ -48,6 +48,8 @@ fn main() {
     assert_eq!(2.3f32.copysign(-1.0), -2.3f32);
     println!("{}", 2.3f32.powf(2.0));
 
+    assert_eq!(i64::MAX.checked_mul(2), None);
+
     assert_eq!(-128i8, (-128i8).saturating_sub(1));
     assert_eq!(127i8, 127i8.saturating_sub(-128));
     assert_eq!(-128i8, (-128i8).saturating_add(-128));
@@ -84,6 +86,7 @@ fn main() {
     assert_eq!(houndred_i128 as f64, 100.0);
     assert_eq!(houndred_f32 as i128, 100);
     assert_eq!(houndred_f64 as i128, 100);
+    assert_eq!(1u128.rotate_left(2), 4);
 
     // Test signed 128bit comparing
     let max = usize::MAX as i128;

compiler/rustc_codegen_cranelift/rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2021-03-29"
+channel = "nightly-2021-04-28"
 components = ["rust-src", "rustc-dev", "llvm-tools-preview"]

compiler/rustc_codegen_cranelift/scripts/ext_config.sh

@@ -5,7 +5,7 @@
 set -e
 
 export CG_CLIF_DISPLAY_CG_TIME=1
-export CG_CLIF_INCR_CACHE_DISABLED=1
+export CG_CLIF_DISABLE_INCR_CACHE=1
 
 export HOST_TRIPLE=$(rustc -vV | grep host | cut -d: -f2 | tr -d " ")
 export TARGET_TRIPLE=${TARGET_TRIPLE:-$HOST_TRIPLE}

compiler/rustc_codegen_cranelift/scripts/setup_rust_fork.sh

@@ -45,7 +45,7 @@ index d95b5b7f17f..00b6f0e3635 100644
  [dependencies]
  core = { path = "../core" }
 -compiler_builtins = { version = "0.1.39", features = ['rustc-dep-of-std'] }
-+compiler_builtins = { version = "0.1.39", features = ['rustc-dep-of-std', 'no-asm'] }
++compiler_builtins = { version = "0.1.40", features = ['rustc-dep-of-std', 'no-asm'] }
 
  [dev-dependencies]
  rand = "0.7"