Fix compilation on arm64 (#413)

Author: kitterion

crates/cubecl-hip/src/compute/server.rs

@@ -399,8 +399,7 @@ impl HipContext {
         let include_option_cstr = CString::new(include_option).unwrap();
         // needed for rocWMMA extension to compile
         let cpp_std_option_cstr = CString::new("--std=c++17").unwrap();
-        let mut options: Vec<*const i8> =
-            vec![cpp_std_option_cstr.as_ptr(), include_option_cstr.as_ptr()];
+        let mut options = vec![cpp_std_option_cstr.as_ptr(), include_option_cstr.as_ptr()];
         unsafe {
             let options_ptr = options.as_mut_ptr();
             let status =
@@ -413,7 +412,7 @@ impl HipContext {
                     status, hiprtcResult_HIPRTC_SUCCESS,
                     "Should retrieve the compilation log size"
                 );
-                let mut log_buffer = vec![0i8; log_size];
+                let mut log_buffer = vec![0; log_size];
                 let status = cubecl_hip_sys::hiprtcGetProgramLog(program, log_buffer.as_mut_ptr());
                 assert_eq!(
                     status, hiprtcResult_HIPRTC_SUCCESS,
@@ -446,7 +445,7 @@ impl HipContext {
                 "Should get size of compiled code"
             );
         }
-        let mut code = vec![0i8; code_size];
+        let mut code = vec![0; code_size];
         unsafe {
             let status = cubecl_hip_sys::hiprtcGetCode(program, code.as_mut_ptr());
             assert_eq!(