tcg: Remove TCG_CALL_PLUGIN

Since we no longer emit plugin helpers during the initial code
translation phase, we don't need to specially mark plugin helpers.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/tcg/tcg.h

@@ -353,8 +353,6 @@ typedef TCGv_ptr TCGv_env;
 #define TCG_CALL_NO_SIDE_EFFECTS    0x0004
 /* Helper is G_NORETURN.  */
 #define TCG_CALL_NO_RETURN          0x0008
-/* Helper is part of Plugins.  */
-#define TCG_CALL_PLUGIN             0x0010
 
 /* convenience version of most used call flags */
 #define TCG_CALL_NO_RWG         TCG_CALL_NO_READ_GLOBALS

plugins/core.c

@@ -339,9 +339,8 @@ void plugin_register_dyn_cb__udata(GArray **arr,
                                    void *udata)
 {
     static TCGHelperInfo info[3] = {
-        [QEMU_PLUGIN_CB_NO_REGS].flags = TCG_CALL_NO_RWG | TCG_CALL_PLUGIN,
-        [QEMU_PLUGIN_CB_R_REGS].flags = TCG_CALL_NO_WG | TCG_CALL_PLUGIN,
-        [QEMU_PLUGIN_CB_RW_REGS].flags = TCG_CALL_PLUGIN,
+        [QEMU_PLUGIN_CB_NO_REGS].flags = TCG_CALL_NO_RWG,
+        [QEMU_PLUGIN_CB_R_REGS].flags = TCG_CALL_NO_WG,
         /*
          * Match qemu_plugin_vcpu_udata_cb_t:
          *   void (*)(uint32_t, void *)
@@ -375,9 +374,8 @@ void plugin_register_vcpu_mem_cb(GArray **arr,
         !__builtin_types_compatible_p(qemu_plugin_meminfo_t, int32_t));
 
     static TCGHelperInfo info[3] = {
-        [QEMU_PLUGIN_CB_NO_REGS].flags = TCG_CALL_NO_RWG | TCG_CALL_PLUGIN,
-        [QEMU_PLUGIN_CB_R_REGS].flags = TCG_CALL_NO_WG | TCG_CALL_PLUGIN,
-        [QEMU_PLUGIN_CB_RW_REGS].flags = TCG_CALL_PLUGIN,
+        [QEMU_PLUGIN_CB_NO_REGS].flags = TCG_CALL_NO_RWG,
+        [QEMU_PLUGIN_CB_R_REGS].flags = TCG_CALL_NO_WG,
         /*
          * Match qemu_plugin_vcpu_mem_cb_t:
          *   void (*)(uint32_t, qemu_plugin_meminfo_t, uint64_t, void *)

tcg/tcg.c

@@ -2269,9 +2269,7 @@ static void tcg_gen_callN(void *func, TCGHelperInfo *info,
 
 #ifdef CONFIG_PLUGIN
     /* Flag helpers that may affect guest state */
-    if (tcg_ctx->plugin_insn &&
-        !(info->flags & TCG_CALL_PLUGIN) &&
-        !(info->flags & TCG_CALL_NO_SIDE_EFFECTS)) {
+    if (tcg_ctx->plugin_insn && !(info->flags & TCG_CALL_NO_SIDE_EFFECTS)) {
         tcg_ctx->plugin_insn->calls_helpers = true;
     }
 #endif