From 16255b4d3b705b6e3213dad7417717fae07c4a19 Mon Sep 17 00:00:00 2001
From: rymnc <43716372+rymnc@users.noreply.github.com>
Date: Sun, 29 Dec 2024 23:56:32 +0530
Subject: [PATCH] fix: dont do 64 byte simd if not available on cpu

---
 fuel-vm/src/interpreter/memory.rs | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/fuel-vm/src/interpreter/memory.rs b/fuel-vm/src/interpreter/memory.rs
index fce76b1c0..a47a6633c 100644
--- a/fuel-vm/src/interpreter/memory.rs
+++ b/fuel-vm/src/interpreter/memory.rs
@@ -1,7 +1,10 @@
 #![cfg(feature = "alloc")]
 
 #[cfg(feature = "experimental")]
-use core::simd::Simd;
+use core::simd::{
+    cmp::SimdPartialEq,
+    Simd,
+};
 
 use super::{
     internal::inc_pc,
@@ -1045,16 +1048,16 @@ fn slice_eq(a: &[u8], b: &[u8]) -> bool {
         let mut i = 0;
 
         // Process chunks of 64 bytes
+        #[cfg(target_feature = "avx512f")]
         while i + 64 <= len {
             let chunk_a = Simd::<u8, 64>::from_slice(&a[i..]);
             let chunk_b = Simd::<u8, 64>::from_slice(&b[i..]);
-            if chunk_a != chunk_b {
-                return false;
-            }
+            chunk_a.simd_eq(chunk_b).all_true();
             i += 64;
         }
 
         // Process chunks of 32 bytes
+        #[cfg(target_feature = "avx2")]
         while i + 32 <= len {
             let chunk_a = Simd::<u8, 32>::from_slice(&a[i..]);
             let chunk_b = Simd::<u8, 32>::from_slice(&b[i..]);