contrib/plugins/howvec: ensure we don't regress if this plugin is extended

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20241217224306.2900490-3-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250116160306.1709518-13-alex.bennee@linaro.org>

contrib/plugins/howvec.c

@@ -253,6 +253,8 @@ static struct qemu_plugin_scoreboard *find_counter(
     int i;
     uint64_t *cnt = NULL;
     uint32_t opcode = 0;
+    /* if opcode is greater than 32 bits, we should refactor insn hash table. */
+    G_STATIC_ASSERT(sizeof(opcode) == sizeof(uint32_t));
     InsnClassExecCount *class = NULL;
 
     /*
@@ -284,7 +286,7 @@ static struct qemu_plugin_scoreboard *find_counter(
 
         g_mutex_lock(&lock);
         icount = (InsnExecCount *) g_hash_table_lookup(insns,
-                                                       GUINT_TO_POINTER(opcode));
+                                                       (gpointer)(intptr_t) opcode);
 
         if (!icount) {
             icount = g_new0(InsnExecCount, 1);
@@ -295,8 +297,7 @@ static struct qemu_plugin_scoreboard *find_counter(
                 qemu_plugin_scoreboard_new(sizeof(uint64_t));
             icount->count = qemu_plugin_scoreboard_u64(score);
 
-            g_hash_table_insert(insns, GUINT_TO_POINTER(opcode),
-                                (gpointer) icount);
+            g_hash_table_insert(insns, (gpointer)(intptr_t) opcode, icount);
         }
         g_mutex_unlock(&lock);