py/compile: Support large integers in inline-asm data directive.

Fixes issue #8956.

Signed-off-by: Damien George <damien@micropython.org>

py/compile.c

@@ -3286,12 +3286,13 @@ STATIC void compile_scope_inline_asm(compiler_t *comp, scope_t *scope, pass_kind
             if (pass > MP_PASS_SCOPE) {
                 mp_int_t bytesize = MP_PARSE_NODE_LEAF_SMALL_INT(pn_arg[0]);
                 for (uint j = 1; j < n_args; j++) {
-                    if (!MP_PARSE_NODE_IS_SMALL_INT(pn_arg[j])) {
+                    mp_obj_t int_obj;
+                    if (!mp_parse_node_get_int_maybe(pn_arg[j], &int_obj)) {
                         compile_syntax_error(comp, nodes[i], MP_ERROR_TEXT("'data' requires integer arguments"));
                         return;
                     }
                     mp_asm_base_data((mp_asm_base_t *)comp->emit_inline_asm,
-                        bytesize, MP_PARSE_NODE_LEAF_SMALL_INT(pn_arg[j]));
+                        bytesize, mp_obj_int_get_truncated(int_obj));
                 }
             }
         } else {

tests/inlineasm/asmdata.py

@@ -0,0 +1,16 @@
+# test the "data" directive
+
+
+@micropython.asm_thumb
+def ret_num(r0) -> uint:
+    lsl(r0, r0, 2)
+    mov(r1, pc)
+    add(r0, r0, r1)
+    ldr(r0, [r0, 4])
+    b(HERE)
+    data(4, 0x12345678, 0x20000000, 0x40000000, 0x7FFFFFFF + 1, (1 << 32) - 2)
+    label(HERE)
+
+
+for i in range(5):
+    print(hex(ret_num(i)))

tests/inlineasm/asmdata.py.exp

@@ -0,0 +1,5 @@
+0x12345678
+0x20000000
+0x40000000
+0x80000000
+0xfffffffe