diff --git a/src/util.rs b/src/util.rs
index bd5a1e735..7776bb31c 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1125,8 +1125,6 @@ impl Run {
                 .arg(processed.clone())
                 .arg("-g0")
                 .arg(format!("-{}", llvm_level.llvm_opt_level()))
-                .arg("-fno-vectorize")
-                .arg("-fno-slp-vectorize")
                 .arg("-emit-llvm")
                 .arg("-S")
                 .arg("-o")