From dc0db358abe19481e475e10c32149b53370f1a1c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 30 May 2024 05:57:31 +0200
Subject: Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../rustc_codegen_cranelift/example/std_example.rs | 68 ++++++++++++++++++++++
 1 file changed, 68 insertions(+)

(limited to 'compiler/rustc_codegen_cranelift/example/std_example.rs')

diff --git a/compiler/rustc_codegen_cranelift/example/std_example.rs b/compiler/rustc_codegen_cranelift/example/std_example.rs
index ab4045d11..1bf0ff64c 100644
--- a/compiler/rustc_codegen_cranelift/example/std_example.rs
+++ b/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);
-- 
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