Bench urbd asm

ogxd · Nov 9, 2024 · 27eeaae · 27eeaae
1 parent 9ac65ce
commit 27eeaae
Showing 1 changed file with 13 additions and 13 deletions.
diff --git a/src/gxhash/platform/x86.rs b/src/gxhash/platform/x86.rs
@@ -65,21 +65,21 @@ pub unsafe fn get_partial_safe(data: *const State, len: usize) -> State {
 #[inline(always)]
 pub unsafe fn get_partial_unsafe_no_ub(data: *const State, len: usize) -> State {
     // Using inline assembly to load out-of-bounds
-    // use std::arch::asm;
-    // let indices = _mm_set_epi8(15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0);
-    // let mask = _mm_cmpgt_epi8(_mm_set1_epi8(len as i8), indices);
-    // let mut result: State;
-    // asm!("movdqu [{}], {}", in(reg) data, out(xmm_reg) result, options(pure, nomem, nostack));
-    // let partial_vector = _mm_and_si128(result, mask);
-    // _mm_add_epi8(partial_vector, _mm_set1_epi8(len as i8))
+    use std::arch::asm;
+    let indices = _mm_set_epi8(15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0);
+    let mask = _mm_cmpgt_epi8(_mm_set1_epi8(len as i8), indices);
+    let mut result: State;
+    asm!("movdqu [{}], {}", in(reg) data, out(xmm_reg) result, options(pure, nomem, nostack));
+    let partial_vector = _mm_and_si128(result, mask);
+    _mm_add_epi8(partial_vector, _mm_set1_epi8(len as i8))
 
     // Using std::simd
-    use std::simd::*;
-    use std::mem::transmute;
-    let slice = std::slice::from_raw_parts(data as *const i8, len);
-    let data: Simd<i8, 16> = Simd::<i8, 16>::load_or_default(&slice);
-    let vector: State = transmute(data);
-    return vector;
+    // use std::simd::*;
+    // use std::mem::transmute;
+    // let slice = std::slice::from_raw_parts(data as *const i8, len);
+    // let data: Simd<i8, 16> = Simd::<i8, 16>::load_or_default(&slice);
+    // let vector: State = transmute(data);
+    // return vector;
 }
 
 #[inline(always)]