with less shuf

TheBlueMatt · Dec 16, 2023 · a19cad6 · a19cad6
1 parent a47bce8
commit a19cad6
Showing 1 changed file with 2 additions and 6 deletions.
diff --git a/lightning/src/util/simd_f32.rs b/lightning/src/util/simd_f32.rs
@@ -145,14 +145,10 @@ mod x86_sse {
 			let res_b = _mm256_unpackhi_epi32(lo, zeros);
 
 			let suma = _mm256_add_epi64(res_a, res_b);
-			let res_a = _mm256_unpacklo_epi64(suma, zeros);
-			let res_b = _mm256_unpackhi_epi64(suma, zeros);
-
-			let sumb = _mm256_add_epi64(res_a, res_b);
 
 			let mut res_bytes = AlignedInts([0; 4]);
-			_mm256_store_si256(&mut res_bytes.0[0] as *mut u64 as *mut __m256i, sumb);
-			res_bytes.0[0] + res_bytes.0[2]
+			_mm256_store_si256(&mut res_bytes.0[0] as *mut u64 as *mut __m256i, suma);
+			res_bytes.0[0] + res_bytes.0[1] + res_bytes.0[2] + res_bytes.0[3]
 		}
 	}
 }