Merge commit '8830dccd1d' into sync_cg_clif-2023-06-15

compiler/rustc_codegen_cranelift/example/alloc_example.rs

@@ -1,4 +1,4 @@
-#![feature(start, core_intrinsics, alloc_error_handler)]
+#![feature(start, core_intrinsics, alloc_error_handler, lang_items)]
 #![no_std]
 
 extern crate alloc;
@@ -27,6 +27,11 @@ fn alloc_error_handler(_: alloc::alloc::Layout) -> ! {
     core::intrinsics::abort();
 }
 
+#[lang = "eh_personality"]
+fn eh_personality() -> ! {
+    loop {}
+}
+
 #[start]
 fn main(_argc: isize, _argv: *const *const u8) -> isize {
     let world: Box<&str> = Box::new("Hello World!\0");

compiler/rustc_codegen_cranelift/example/mini_core.rs

@@ -502,6 +502,9 @@ pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
     drop_in_place(to_drop);
 }
 
+#[lang = "unpin"]
+pub auto trait Unpin {}
+
 #[lang = "deref"]
 pub trait Deref {
     type Target: ?Sized;
@@ -526,7 +529,7 @@ impl<T: ?Sized, U: ?Sized> CoerceUnsized<Unique<U>> for Unique<T> where T: Unsiz
 impl<T: ?Sized, U: ?Sized> DispatchFromDyn<Unique<U>> for Unique<T> where T: Unsize<U> {}
 
 #[lang = "owned_box"]
-pub struct Box<T: ?Sized>(Unique<T>, ());
+pub struct Box<T: ?Sized, A = ()>(Unique<T>, A);
 
 impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<Box<U>> for Box<T> {}
 
@@ -541,7 +544,7 @@ impl<T> Box<T> {
     }
 }
 
-impl<T: ?Sized> Drop for Box<T> {
+impl<T: ?Sized, A> Drop for Box<T, A> {
     fn drop(&mut self) {
         // drop is currently performed by compiler.
     }

compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs

@@ -322,7 +322,12 @@ fn main() {
     #[cfg(all(not(jit), not(all(windows, target_env = "gnu"))))]
     test_tls();
 
-    #[cfg(all(not(jit), target_arch = "x86_64", any(target_os = "linux", target_os = "darwin")))]
+    #[cfg(all(
+        not(jit),
+        not(no_unstable_features),
+        target_arch = "x86_64",
+        any(target_os = "linux", target_os = "macos")
+    ))]
     unsafe {
         global_asm_test();
     }
@@ -350,12 +355,17 @@ fn main() {
     let _a = f.0[0];
 }
 
-#[cfg(all(not(jit), target_arch = "x86_64", any(target_os = "linux", target_os = "darwin")))]
+#[cfg(all(
+    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), target_arch = "x86_64", target_os = "linux"))]
+#[cfg(all(not(jit), not(no_unstable_features), target_arch = "x86_64", target_os = "linux"))]
 global_asm! {
     "
     .global global_asm_test
@@ -365,7 +375,7 @@ global_asm! {
     "
 }
 
-#[cfg(all(not(jit), target_arch = "x86_64", target_os = "darwin"))]
+#[cfg(all(not(jit), not(no_unstable_features), target_arch = "x86_64", target_os = "macos"))]
 global_asm! {
     "
     .global _global_asm_test

compiler/rustc_codegen_cranelift/example/std_example.rs

@@ -197,6 +197,10 @@ unsafe fn test_simd() {
 
     test_mm_extract_epi8();
     test_mm_insert_epi16();
+    test_mm_shuffle_epi8();
+
+    test_mm256_shuffle_epi8();
+    test_mm256_permute2x128_si256();
 
     #[rustfmt::skip]
     let mask1 = _mm_movemask_epi8(dbg!(_mm_setr_epi8(255u8 as i8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)));
@@ -293,6 +297,12 @@ pub unsafe fn assert_eq_m128d(a: __m128d, b: __m128d) {
     }
 }
 
+#[cfg(target_arch = "x86_64")]
+#[target_feature(enable = "avx")]
+pub unsafe fn assert_eq_m256i(a: __m256i, b: __m256i) {
+    assert_eq!(std::mem::transmute::<_, [u64; 4]>(a), std::mem::transmute::<_, [u64; 4]>(b))
+}
+
 #[cfg(target_arch = "x86_64")]
 #[target_feature(enable = "sse2")]
 unsafe fn test_mm_cvtsi128_si64() {
@@ -336,6 +346,64 @@ unsafe fn test_mm_insert_epi16() {
     assert_eq_m128i(r, e);
 }
 
+#[cfg(target_arch = "x86_64")]
+#[target_feature(enable = "ssse3")]
+unsafe fn test_mm_shuffle_epi8() {
+    #[rustfmt::skip]
+        let a = _mm_setr_epi8(
+            1, 2, 3, 4, 5, 6, 7, 8,
+            9, 10, 11, 12, 13, 14, 15, 16,
+        );
+    #[rustfmt::skip]
+        let b = _mm_setr_epi8(
+            4, 128_u8 as i8, 4, 3,
+            24, 12, 6, 19,
+            12, 5, 5, 10,
+            4, 1, 8, 0,
+        );
+    let expected = _mm_setr_epi8(5, 0, 5, 4, 9, 13, 7, 4, 13, 6, 6, 11, 5, 2, 9, 1);
+    let r = _mm_shuffle_epi8(a, b);
+    assert_eq_m128i(r, expected);
+}
+
+#[cfg(target_arch = "x86_64")]
+#[target_feature(enable = "avx2")]
+unsafe fn test_mm256_shuffle_epi8() {
+    #[rustfmt::skip]
+    let a = _mm256_setr_epi8(
+        1, 2, 3, 4, 5, 6, 7, 8,
+        9, 10, 11, 12, 13, 14, 15, 16,
+        17, 18, 19, 20, 21, 22, 23, 24,
+        25, 26, 27, 28, 29, 30, 31, 32,
+    );
+    #[rustfmt::skip]
+    let b = _mm256_setr_epi8(
+        4, 128u8 as i8, 4, 3, 24, 12, 6, 19,
+        12, 5, 5, 10, 4, 1, 8, 0,
+        4, 128u8 as i8, 4, 3, 24, 12, 6, 19,
+        12, 5, 5, 10, 4, 1, 8, 0,
+    );
+    #[rustfmt::skip]
+    let expected = _mm256_setr_epi8(
+        5, 0, 5, 4, 9, 13, 7, 4,
+        13, 6, 6, 11, 5, 2, 9, 1,
+        21, 0, 21, 20, 25, 29, 23, 20,
+        29, 22, 22, 27, 21, 18, 25, 17,
+    );
+    let r = _mm256_shuffle_epi8(a, b);
+    assert_eq_m256i(r, expected);
+}
+
+#[cfg(target_arch = "x86_64")]
+#[target_feature(enable = "avx2")]
+unsafe fn test_mm256_permute2x128_si256() {
+    let a = _mm256_setr_epi64x(100, 200, 500, 600);
+    let b = _mm256_setr_epi64x(300, 400, 700, 800);
+    let r = _mm256_permute2x128_si256::<0b00_01_00_11>(a, b);
+    let e = _mm256_setr_epi64x(700, 800, 500, 600);
+    assert_eq_m256i(r, e);
+}
+
 fn test_checked_mul() {
     let u: Option<u8> = u8::from_str_radix("1000", 10).ok();
     assert_eq!(u, None);