Use wildcard in REGPARM1 tests

Author: winstonallo

tests/assembly-llvm/regparm-module-flag.rs

@@ -22,7 +22,7 @@ unsafe extern "C" {
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn entrypoint(len: usize, ptr: *mut c_void, val: i32) -> *mut c_void {
     // REGPARM1-LABEL: entrypoint
-    // REGPARM1: movl %eax, %ecx
+    // REGPARM1: movl %e{{.*}}, %ecx
     // REGPARM1: calll memset
 
     // REGPARM2-LABEL: entrypoint
@@ -41,7 +41,7 @@ pub unsafe extern "C" fn entrypoint(len: usize, ptr: *mut c_void, val: i32) -> *
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn non_builtin_entrypoint(len: usize, ptr: *mut c_void, val: i32) -> *mut c_void {
     // REGPARM1-LABEL: non_builtin_entrypoint
-    // REGPARM1: movl %eax, %ecx
+    // REGPARM1: movl %e{{.*}}, %ecx
     // REGPARM1: calll non_builtin_memset
 
     // REGPARM2-LABEL: non_builtin_entrypoint