Auto merge of #127162 - bjorn3:sync_cg_clif-2024-06-30, r=bjorn3

Subtree sync for rustc_codegen_cranelift

The main highlight this time is support for arm64 macOS in cg_clif. A future PR will enable distributing it as rustup component.

r? `@ghost`

`@rustbot` label +A-codegen +A-cranelift +T-compiler

1 files changed, 38 insertions, 0 deletions

diff --git a/compiler/rustc_codegen_cranelift/example/std_example.rs b/compiler/rustc_codegen_cranelift/example/std_example.rs
index 7347b2e7789..6cedd84adfe 100644
--- a/compiler/rustc_codegen_cranelift/example/std_example.rs
+++ b/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);