diff --git a/qemu/tcg/optimize.c b/qemu/tcg/optimize.c
index 397f41a6..30684ee7 100644
--- a/qemu/tcg/optimize.c
+++ b/qemu/tcg/optimize.c
@@ -118,21 +118,21 @@ static TCGTemp *find_better_copy(TCGTemp *ts)
     TCGTemp *i;
 
     /* If this is already a global, we can't do better. */
-    if (ts->temp_global) {
+    if (ts->kind >= TEMP_GLOBAL) {
         return ts;
     }
 
     /* Search for a global first. */
     for (i = ts_info(ts)->next_copy; i != ts; i = ts_info(i)->next_copy) {
-        if (i->temp_global) {
+        if (i->kind >= TEMP_GLOBAL) {
             return i;
         }
     }
 
     /* If it is a temp, search for a temp local. */
-    if (!ts->temp_local) {
+    if (ts->kind == TEMP_NORMAL) {
         for (i = ts_info(ts)->next_copy; i != ts; i = ts_info(i)->next_copy) {
-            if (ts->temp_local) {
+            if (i->kind >= TEMP_LOCAL) {
                 return i;
             }
         }
diff --git a/qemu/tcg/tcg.c b/qemu/tcg/tcg.c
index da3bb07a..33f90591 100644
--- a/qemu/tcg/tcg.c
+++ b/qemu/tcg/tcg.c
@@ -550,7 +550,7 @@ static inline TCGTemp *tcg_global_alloc(TCGContext *s)
     tcg_debug_assert(s->nb_globals == s->nb_temps);
     s->nb_globals++;
     ts = tcg_temp_alloc(s);
-    ts->temp_global = 1;
+    ts->kind = TEMP_GLOBAL;
 
     return ts;
 }
@@ -567,7 +567,7 @@ static TCGTemp *tcg_global_reg_new_internal(TCGContext *s, TCGType type,
     ts = tcg_global_alloc(s);
     ts->base_type = type;
     ts->type = type;
-    ts->fixed_reg = 1;
+    ts->kind = TEMP_FIXED;
     ts->reg = reg;
     ts->name = name;
     tcg_regset_set_reg(s->reserved_regs, reg);
@@ -616,7 +616,7 @@ TCGTemp *tcg_global_mem_new_internal(TCGContext *s, TCGType type, TCGv_ptr base,
     bigendian = 1;
 #endif
 
-    if (!base_ts->fixed_reg) {
+    if (base_ts->kind != TEMP_FIXED) {
         /* We do not support double-indirect registers.  */
         tcg_debug_assert(!base_ts->indirect_reg);
         base_ts->indirect_base = 1;
@@ -663,6 +663,7 @@ TCGTemp *tcg_global_mem_new_internal(TCGContext *s, TCGType type, TCGv_ptr base,
 
 TCGTemp *tcg_temp_new_internal(TCGContext *s, TCGType type, bool temp_local)
 {
+    TCGTempKind kind = temp_local ? TEMP_LOCAL : TEMP_NORMAL;
     TCGTemp *ts;
     int idx, k;
 
@@ -675,7 +676,7 @@ TCGTemp *tcg_temp_new_internal(TCGContext *s, TCGType type, bool temp_local)
         ts = &s->temps[idx];
         ts->temp_allocated = 1;
         tcg_debug_assert(ts->base_type == type);
-        tcg_debug_assert(ts->temp_local == temp_local);
+        tcg_debug_assert(ts->kind == kind);
     } else {
         ts = tcg_temp_alloc(s);
         if (TCG_TARGET_REG_BITS == 32 && type == TCG_TYPE_I64) {
@@ -684,18 +685,18 @@ TCGTemp *tcg_temp_new_internal(TCGContext *s, TCGType type, bool temp_local)
             ts->base_type = type;
             ts->type = TCG_TYPE_I32;
             ts->temp_allocated = 1;
-            ts->temp_local = temp_local;
+            ts->kind = kind;
 
             tcg_debug_assert(ts2 == ts + 1);
             ts2->base_type = TCG_TYPE_I64;
             ts2->type = TCG_TYPE_I32;
             ts2->temp_allocated = 1;
-            ts2->temp_local = temp_local;
+            ts2->kind = kind;
         } else {
             ts->base_type = type;
             ts->type = type;
             ts->temp_allocated = 1;
-            ts->temp_local = temp_local;
+            ts->kind = kind;
         }
     }
 
@@ -751,12 +752,12 @@ void tcg_temp_free_internal(TCGContext *s, TCGTemp *ts)
     }
 #endif
 
-    tcg_debug_assert(ts->temp_global == 0);
+    tcg_debug_assert(ts->kind < TEMP_GLOBAL);
     tcg_debug_assert(ts->temp_allocated != 0);
     ts->temp_allocated = 0;
 
     idx = temp_idx(s, ts);
-    k = ts->base_type + (ts->temp_local ? TCG_TYPE_COUNT : 0);
+    k = ts->base_type + (ts->kind == TEMP_NORMAL ? 0 : TCG_TYPE_COUNT);
     set_bit(idx, s->free_temps[k].l);
 }
 
@@ -1280,17 +1281,27 @@ void tcg_gen_callN(TCGContext *s, void *func, TCGTemp *ret, int nargs, TCGTemp *
 static void tcg_reg_alloc_start(TCGContext *s)
 {
     int i, n;
-    TCGTemp *ts;
 
-    for (i = 0, n = s->nb_globals; i < n; i++) {
-        ts = &s->temps[i];
-        ts->val_type = (ts->fixed_reg ? TEMP_VAL_REG : TEMP_VAL_MEM);
-    }
-    for (n = s->nb_temps; i < n; i++) {
-        ts = &s->temps[i];
-        ts->val_type = (ts->temp_local ? TEMP_VAL_MEM : TEMP_VAL_DEAD);
-        ts->mem_allocated = 0;
-        ts->fixed_reg = 0;
+    for (i = 0, n = s->nb_temps; i < n; i++) {
+        TCGTemp *ts = &s->temps[i];
+        TCGTempVal val = TEMP_VAL_MEM;
+
+        switch (ts->kind) {
+        case TEMP_FIXED:
+            val = TEMP_VAL_REG;
+            break;
+        case TEMP_GLOBAL:
+            break;
+        case TEMP_NORMAL:
+            val = TEMP_VAL_DEAD;
+            /* fall through */
+        case TEMP_LOCAL:
+            ts->mem_allocated = 0;
+            break;
+        default:
+            g_assert_not_reached();
+        }
+        ts->val_type = val;
     }
 
     memset(s->reg_to_temp, 0, sizeof(s->reg_to_temp));
@@ -1301,12 +1312,17 @@ static char *tcg_get_arg_str_ptr(TCGContext *s, char *buf, int buf_size,
 {
     int idx = temp_idx(s, ts);
 
-    if (ts->temp_global) {
+    switch (ts->kind) {
+    case TEMP_FIXED:
+    case TEMP_GLOBAL:
         pstrcpy(buf, buf_size, ts->name);
-    } else if (ts->temp_local) {
+        break;
+    case TEMP_LOCAL:
         snprintf(buf, buf_size, "loc%d", idx - s->nb_globals);
-    } else {
+        break;
+    case TEMP_NORMAL:
         snprintf(buf, buf_size, "tmp%d", idx - s->nb_globals);
+        break;
     }
     return buf;
 }
@@ -1897,15 +1913,24 @@ static void la_bb_end(TCGContext *s, int ng, int nt)
 {
     int i;
 
-    for (i = 0; i < ng; ++i) {
-        s->temps[i].state = TS_DEAD | TS_MEM;
-        la_reset_pref(s, &s->temps[i]);
-    }
-    for (i = ng; i < nt; ++i) {
-        s->temps[i].state = (s->temps[i].temp_local
-                             ? TS_DEAD | TS_MEM
-                             : TS_DEAD);
-        la_reset_pref(s, &s->temps[i]);
+    for (i = 0; i < nt; ++i) {
+        TCGTemp *ts = &s->temps[i];
+        int state;
+
+        switch (ts->kind) {
+        case TEMP_FIXED:
+        case TEMP_GLOBAL:
+        case TEMP_LOCAL:
+            state = TS_DEAD | TS_MEM;
+            break;
+        case TEMP_NORMAL:
+            state = TS_DEAD;
+            break;
+        default:
+            g_assert_not_reached();
+        }
+        ts->state = state;
+        la_reset_pref(s, ts);
     }
 }
 
@@ -1944,8 +1969,8 @@ static inline void tcg_la_br_end(TCGContext *s)
 
     la_global_sync(s, ng);
     for (i = ng; i < nt; i++) {
-        s->temps[i].state = s->temps[i].temp_local ? TS_DEAD | TS_MEM
-                                                   : TS_MEM;
+        s->temps[i].state = s->temps[i].kind == TEMP_LOCAL ? TS_DEAD | TS_MEM
+                                                           : TS_MEM;
         la_reset_pref(s, &s->temps[i]);
     }
 }
@@ -2542,7 +2567,8 @@ static void check_regs(TCGContext *s)
     }
     for (k = 0; k < s->nb_temps; k++) {
         ts = &s->temps[k];
-        if (ts->val_type == TEMP_VAL_REG && !ts->fixed_reg
+        if (ts->val_type == TEMP_VAL_REG
+            && ts->kind != TEMP_FIXED
             && s->reg_to_temp[ts->reg] != ts) {
             printf("Inconsistency for temp %s:\n",
                    tcg_get_arg_str_ptr(s, buf, sizeof(buf), ts));
@@ -2579,15 +2605,14 @@ static void temp_load(TCGContext *, TCGTemp *, TCGRegSet, TCGRegSet, TCGRegSet);
    mark it free; otherwise mark it dead.  */
 static void temp_free_or_dead(TCGContext *s, TCGTemp *ts, int free_or_dead)
 {
-    if (ts->fixed_reg) {
+    if (ts->kind == TEMP_FIXED) {
         return;
     }
     if (ts->val_type == TEMP_VAL_REG) {
         s->reg_to_temp[ts->reg] = NULL;
     }
     ts->val_type = (free_or_dead < 0
-                    || ts->temp_local
-                    || ts->temp_global
+                    || ts->kind != TEMP_NORMAL
                     ? TEMP_VAL_MEM : TEMP_VAL_DEAD);
 }
 
@@ -2604,7 +2629,7 @@ static inline void temp_dead(TCGContext *s, TCGTemp *ts)
 static void temp_sync(TCGContext *s, TCGTemp *ts, TCGRegSet allocated_regs,
                       TCGRegSet preferred_regs, int free_or_dead)
 {
-    if (ts->fixed_reg) {
+    if (ts->kind == TEMP_FIXED) {
         return;
     }
     if (!ts->mem_coherent) {
@@ -2787,7 +2812,8 @@ static void temp_save(TCGContext *s, TCGTemp *ts, TCGRegSet allocated_regs)
 {
     /* The liveness analysis already ensures that globals are back
        in memory. Keep an tcg_debug_assert for safety. */
-    tcg_debug_assert(ts->val_type == TEMP_VAL_MEM || ts->fixed_reg);
+    tcg_debug_assert(ts->val_type == TEMP_VAL_MEM
+                     || ts->kind == TEMP_FIXED);
 }
 
 /* save globals to their canonical location and assume they can be
@@ -2812,7 +2838,7 @@ static void sync_globals(TCGContext *s, TCGRegSet allocated_regs)
     for (i = 0, n = s->nb_globals; i < n; i++) {
         TCGTemp *ts = &s->temps[i];
         tcg_debug_assert(ts->val_type != TEMP_VAL_REG
-                         || ts->fixed_reg
+                         || ts->kind == TEMP_FIXED
                          || ts->mem_coherent);
     }
 }
@@ -2825,7 +2851,7 @@ static void tcg_reg_alloc_bb_end(TCGContext *s, TCGRegSet allocated_regs)
 
     for (i = s->nb_globals; i < s->nb_temps; i++) {
         TCGTemp *ts = &s->temps[i];
-        if (ts->temp_local) {
+        if (ts->kind == TEMP_LOCAL) {
             temp_save(s, ts, allocated_regs);
         } else {
             /* The liveness analysis already ensures that temps are dead.
@@ -2845,7 +2871,7 @@ static void tcg_reg_alloc_do_movi(TCGContext *s, TCGTemp *ots,
                                   TCGRegSet preferred_regs)
 {
     /* ENV should not be modified.  */
-    tcg_debug_assert(!ots->fixed_reg);
+    tcg_debug_assert(ots->kind != TEMP_FIXED);
 
     /* The movi is not explicitly generated here.  */
     if (ots->val_type == TEMP_VAL_REG) {
@@ -2885,7 +2911,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOp *op)
     ts = arg_temp(op->args[1]);
 
     /* ENV should not be modified.  */
-    tcg_debug_assert(!ots->fixed_reg);
+    tcg_debug_assert(ots->kind != TEMP_FIXED);
 
     /* Note that otype != itype for no-op truncation.  */
     otype = ots->type;
@@ -2924,7 +2950,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOp *op)
         }
         temp_dead(s, ots);
     } else {
-        if (IS_DEAD_ARG(1) && !ts->fixed_reg) {
+        if (IS_DEAD_ARG(1) && ts->kind != TEMP_FIXED) {
             /* the mov can be suppressed */
             if (ots->val_type == TEMP_VAL_REG) {
                 s->reg_to_temp[ots->reg] = NULL;
@@ -2946,7 +2972,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOp *op)
                  * Store the source register into the destination slot
                  * and leave the destination temp as TEMP_VAL_MEM.
                  */
-                assert(!ots->fixed_reg);
+                assert(ots->kind != TEMP_FIXED);
                 if (!ts->mem_allocated) {
                     temp_allocate_frame(s, ots);
                 }
@@ -2983,7 +3009,7 @@ static void tcg_reg_alloc_dup(TCGContext *s, const TCGOp *op)
     its = arg_temp(op->args[1]);
 
     /* ENV should not be modified.  */
-    tcg_debug_assert(!ots->fixed_reg);
+    tcg_debug_assert(ots->kind != TEMP_FIXED);
 
     itype = its->type;
     vece = TCGOP_VECE(op);
@@ -3123,7 +3149,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
         i_preferred_regs = o_preferred_regs = 0;
         if (arg_ct->ialias) {
             o_preferred_regs = op->output_pref[arg_ct->alias_index];
-            if (ts->fixed_reg) {
+            if (ts->kind == TEMP_FIXED) {
                 /* if fixed register, we must allocate a new register
                    if the alias is not the same register */
                 if (arg != op->args[arg_ct->alias_index]) {
@@ -3160,7 +3186,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
             /* nothing to do : the constraint is satisfied */
         } else {
         allocate_in_reg:
-            /* allocate a new register matching the constraint 
+            /* allocate a new register matching the constraint
                and move the temporary register into it */
             temp_load(s, ts, s->tcg_target_available_regs[ts->type],
                       i_allocated_regs, 0);
@@ -3180,7 +3206,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
         const_args[i] = 0;
         tcg_regset_set_reg(i_allocated_regs, reg);
     }
-    
+
     /* mark dead temporaries and free the associated registers */
     for (i = nb_oargs; i < nb_oargs + nb_iargs; i++) {
         if (IS_DEAD_ARG(i)) {
@@ -3192,7 +3218,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
         tcg_reg_alloc_bb_end(s, i_allocated_regs);
     } else {
         if (def->flags & TCG_OPF_CALL_CLOBBER) {
-            /* XXX: permit generic clobber register list ? */ 
+            /* XXX: permit generic clobber register list ? */
             for (i = 0; i < TCG_TARGET_NB_REGS; i++) {
                 if (tcg_regset_test_reg(s->tcg_target_call_clobber_regs, i)) {
                     tcg_reg_free(s, i, i_allocated_regs);
@@ -3204,7 +3230,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
                an exception. */
             sync_globals(s, i_allocated_regs);
         }
-        
+
         /* satisfy the output constraints */
         for(k = 0; k < nb_oargs; k++) {
             i = def->args_ct[k].sort_index;
@@ -3213,7 +3239,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
             ts = arg_temp(arg);
 
             /* ENV should not be modified.  */
-            tcg_debug_assert(!ts->fixed_reg);
+            tcg_debug_assert(ts->kind != TEMP_FIXED);
 
             if (arg_ct->oalias && !const_args[arg_ct->alias_index]) {
                 reg = new_args[arg_ct->alias_index];
@@ -3254,7 +3280,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
         ts = arg_temp(op->args[i]);
 
         /* ENV should not be modified.  */
-        tcg_debug_assert(!ts->fixed_reg);
+        tcg_debug_assert(ts->kind != TEMP_FIXED);
 
         if (NEED_SYNC_ARG(i)) {
             temp_sync(s, ts, o_allocated_regs, 0, IS_DEAD_ARG(i));
@@ -3386,7 +3412,7 @@ static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op)
         ts = arg_temp(arg);
 
         /* ENV should not be modified.  */
-        tcg_debug_assert(!ts->fixed_reg);
+        tcg_debug_assert(ts->kind != TEMP_FIXED);
 
         reg = tcg_target_call_oarg_regs[i];
         tcg_debug_assert(s->reg_to_temp[reg] == NULL);
diff --git a/qemu/tcg/tcg.h b/qemu/tcg/tcg.h
index c4252794..05aee6d7 100644
--- a/qemu/tcg/tcg.h
+++ b/qemu/tcg/tcg.h
@@ -490,23 +490,27 @@ typedef enum TCGTempVal {
     TEMP_VAL_CONST,
 } TCGTempVal;
 
+typedef enum TCGTempKind {
+    /* Temp is dead at the end of all basic blocks. */
+    TEMP_NORMAL,
+    /* Temp is saved across basic blocks but dead at the end of TBs. */
+    TEMP_LOCAL,
+    /* Temp is saved across both basic blocks and translation blocks. */
+    TEMP_GLOBAL,
+    /* Temp is in a fixed register. */
+    TEMP_FIXED,
+} TCGTempKind;
+
 typedef struct TCGTemp {
     TCGReg reg:8;
     TCGTempVal val_type:8;
     TCGType base_type:8;
     TCGType type:8;
-    unsigned int fixed_reg:1;
+    TCGTempKind kind:3;
     unsigned int indirect_reg:1;
     unsigned int indirect_base:1;
     unsigned int mem_coherent:1;
     unsigned int mem_allocated:1;
-    /* If true, the temp is saved across both basic blocks and
-       translation blocks.  */
-    unsigned int temp_global:1;
-    /* If true, the temp is saved across basic blocks but dead
-       at the end of translation blocks.  If false, the temp is
-       dead at the end of basic blocks.  */
-    unsigned int temp_local:1;
     unsigned int temp_allocated:1;
 
     tcg_target_long val;