added tcg_temp_free() and improved the handling of constants

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4544 c046a42c-6fe2-441c-8c8c-71466251a162

tcg/tcg-op.h

@@ -178,88 +178,115 @@ static inline void tcg_gen_movi_i32(TCGv ret, int32_t arg)
 
 static inline void tcg_gen_helper_0_0(void *func)
 {
+    TCGv t0;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx, 
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  0, NULL, 0, NULL);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_0_1(void *func, TCGv arg)
 {
+    TCGv t0;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx,
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  0, NULL, 1, &arg);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_0_2(void *func, TCGv arg1, TCGv arg2)
 {
     TCGv args[2];
+    TCGv t0;
     args[0] = arg1;
     args[1] = arg2;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx, 
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  0, NULL, 2, args);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_0_3(void *func,
                                       TCGv arg1, TCGv arg2, TCGv arg3)
 {
     TCGv args[3];
+    TCGv t0;
     args[0] = arg1;
     args[1] = arg2;
     args[2] = arg3;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx,
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  0, NULL, 3, args);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_0_4(void *func, TCGv arg1, TCGv arg2,
                                       TCGv arg3, TCGv arg4)
 {
     TCGv args[4];
+    TCGv t0;
     args[0] = arg1;
     args[1] = arg2;
     args[2] = arg3;
     args[3] = arg4;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx,
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  0, NULL, 4, args);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_1_0(void *func, TCGv ret)
 {
+    TCGv t0;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx,
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  1, &ret, 0, NULL);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_1_1(void *func, TCGv ret, TCGv arg1)
 {
+    TCGv t0;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx,
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  1, &ret, 1, &arg1);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_1_2(void *func, TCGv ret, 
                                       TCGv arg1, TCGv arg2)
 {
     TCGv args[2];
+    TCGv t0;
     args[0] = arg1;
     args[1] = arg2;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx, 
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  1, &ret, 2, args);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_1_3(void *func, TCGv ret,
                                       TCGv arg1, TCGv arg2, TCGv arg3)
 {
     TCGv args[3];
+    TCGv t0;
     args[0] = arg1;
     args[1] = arg2;
     args[2] = arg3;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx,
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  1, &ret, 3, args);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_helper_1_4(void *func, TCGv ret,
@@ -267,13 +294,16 @@ static inline void tcg_gen_helper_1_4(void *func, TCGv ret,
                                       TCGv arg4)
 {
     TCGv args[4];
+    TCGv t0;
     args[0] = arg1;
     args[1] = arg2;
     args[2] = arg3;
     args[3] = arg4;
+    t0 = tcg_const_ptr((tcg_target_long)func);
     tcg_gen_call(&tcg_ctx,
-                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 t0, TCG_HELPER_CALL_FLAGS,
                  1, &ret, 4, args);
+    tcg_temp_free(t0);
 }
 
 /* 32 bit ops */
@@ -329,7 +359,9 @@ static inline void tcg_gen_addi_i32(TCGv ret, TCGv arg1, int32_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
     } else {
-        tcg_gen_add_i32(ret, arg1, tcg_const_i32(arg2));
+        TCGv t0 = tcg_const_i32(arg2);
+        tcg_gen_add_i32(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -344,7 +376,9 @@ static inline void tcg_gen_subi_i32(TCGv ret, TCGv arg1, int32_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
     } else {
-        tcg_gen_sub_i32(ret, arg1, tcg_const_i32(arg2));
+        TCGv t0 = tcg_const_i32(arg2);
+        tcg_gen_sub_i32(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -361,7 +395,9 @@ static inline void tcg_gen_andi_i32(TCGv ret, TCGv arg1, int32_t arg2)
     } else if (arg2 == 0xffffffff) {
         tcg_gen_mov_i32(ret, arg1);
     } else {
-        tcg_gen_and_i32(ret, arg1, tcg_const_i32(arg2));
+        TCGv t0 = tcg_const_i32(arg2);
+        tcg_gen_and_i32(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -378,7 +414,9 @@ static inline void tcg_gen_ori_i32(TCGv ret, TCGv arg1, int32_t arg2)
     } else if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
     } else {
-        tcg_gen_or_i32(ret, arg1, tcg_const_i32(arg2));
+        TCGv t0 = tcg_const_i32(arg2);
+        tcg_gen_or_i32(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -393,7 +431,9 @@ static inline void tcg_gen_xori_i32(TCGv ret, TCGv arg1, int32_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
     } else {
-        tcg_gen_xor_i32(ret, arg1, tcg_const_i32(arg2));
+        TCGv t0 = tcg_const_i32(arg2);
+        tcg_gen_xor_i32(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -407,7 +447,9 @@ static inline void tcg_gen_shli_i32(TCGv ret, TCGv arg1, int32_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
     } else {
-        tcg_gen_shl_i32(ret, arg1, tcg_const_i32(arg2));
+        TCGv t0 = tcg_const_i32(arg2);
+        tcg_gen_shl_i32(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -421,7 +463,9 @@ static inline void tcg_gen_shri_i32(TCGv ret, TCGv arg1, int32_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
     } else {
-        tcg_gen_shr_i32(ret, arg1, tcg_const_i32(arg2));
+        TCGv t0 = tcg_const_i32(arg2);
+        tcg_gen_shr_i32(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -435,7 +479,9 @@ static inline void tcg_gen_sari_i32(TCGv ret, TCGv arg1, int32_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
     } else {
-        tcg_gen_sar_i32(ret, arg1, tcg_const_i32(arg2));
+        TCGv t0 = tcg_const_i32(arg2);
+        tcg_gen_sar_i32(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -452,7 +498,9 @@ static inline void tcg_gen_mul_i32(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_muli_i32(TCGv ret, TCGv arg1, int32_t arg2)
 {
-    tcg_gen_mul_i32(ret, arg1, tcg_const_i32(arg2));
+    TCGv t0 = tcg_const_i32(arg2);
+    tcg_gen_mul_i32(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 #ifdef TCG_TARGET_HAS_div_i32
@@ -482,6 +530,7 @@ static inline void tcg_gen_div_i32(TCGv ret, TCGv arg1, TCGv arg2)
     t0 = tcg_temp_new(TCG_TYPE_I32);
     tcg_gen_sari_i32(t0, arg1, 31);
     tcg_gen_op5(INDEX_op_div2_i32, ret, t0, arg1, t0, arg2);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_rem_i32(TCGv ret, TCGv arg1, TCGv arg2)
@@ -490,6 +539,7 @@ static inline void tcg_gen_rem_i32(TCGv ret, TCGv arg1, TCGv arg2)
     t0 = tcg_temp_new(TCG_TYPE_I32);
     tcg_gen_sari_i32(t0, arg1, 31);
     tcg_gen_op5(INDEX_op_div2_i32, t0, ret, arg1, t0, arg2);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_divu_i32(TCGv ret, TCGv arg1, TCGv arg2)
@@ -498,6 +548,7 @@ static inline void tcg_gen_divu_i32(TCGv ret, TCGv arg1, TCGv arg2)
     t0 = tcg_temp_new(TCG_TYPE_I32);
     tcg_gen_movi_i32(t0, 0);
     tcg_gen_op5(INDEX_op_divu2_i32, ret, t0, arg1, t0, arg2);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_remu_i32(TCGv ret, TCGv arg1, TCGv arg2)
@@ -506,6 +557,7 @@ static inline void tcg_gen_remu_i32(TCGv ret, TCGv arg1, TCGv arg2)
     t0 = tcg_temp_new(TCG_TYPE_I32);
     tcg_gen_movi_i32(t0, 0);
     tcg_gen_op5(INDEX_op_divu2_i32, t0, ret, arg1, t0, arg2);
+    tcg_temp_free(t0);
 }
 #endif
 
@@ -608,7 +660,9 @@ static inline void tcg_gen_add_i64(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_addi_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_add_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_add_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_sub_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -619,7 +673,9 @@ static inline void tcg_gen_sub_i64(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_subi_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_sub_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_sub_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_and_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -713,11 +769,15 @@ static inline void tcg_gen_mul_i64(TCGv ret, TCGv arg1, TCGv arg2)
     tcg_gen_add_i32(TCGV_HIGH(t0), TCGV_HIGH(t0), t1);
     
     tcg_gen_mov_i64(ret, t0);
+    tcg_temp_free(t0);
+    tcg_temp_free(t1);
 }
 
 static inline void tcg_gen_muli_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_mul_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_mul_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_div_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -824,7 +884,9 @@ static inline void tcg_gen_add_i64(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_addi_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_add_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_add_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_sub_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -834,7 +896,9 @@ static inline void tcg_gen_sub_i64(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_subi_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_sub_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_sub_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_and_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -844,7 +908,9 @@ static inline void tcg_gen_and_i64(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_andi_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_and_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_and_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_or_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -854,7 +920,9 @@ static inline void tcg_gen_or_i64(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_ori_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_or_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_or_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_xor_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -864,7 +932,9 @@ static inline void tcg_gen_xor_i64(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_xori_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_xor_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_xor_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_shl_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -877,7 +947,9 @@ static inline void tcg_gen_shli_i64(TCGv ret, TCGv arg1, int64_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i64(ret, arg1);
     } else {
-        tcg_gen_shl_i64(ret, arg1, tcg_const_i64(arg2));
+        TCGv t0 = tcg_const_i64(arg2);
+        tcg_gen_shl_i64(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -891,7 +963,9 @@ static inline void tcg_gen_shri_i64(TCGv ret, TCGv arg1, int64_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i64(ret, arg1);
     } else {
-        tcg_gen_shr_i64(ret, arg1, tcg_const_i64(arg2));
+        TCGv t0 = tcg_const_i64(arg2);
+        tcg_gen_shr_i64(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -905,7 +979,9 @@ static inline void tcg_gen_sari_i64(TCGv ret, TCGv arg1, int64_t arg2)
     if (arg2 == 0) {
         tcg_gen_mov_i64(ret, arg1);
     } else {
-        tcg_gen_sar_i64(ret, arg1, tcg_const_i64(arg2));
+        TCGv t0 = tcg_const_i64(arg2);
+        tcg_gen_sar_i64(ret, arg1, t0);
+        tcg_temp_free(t0);
     }
 }
 
@@ -922,7 +998,9 @@ static inline void tcg_gen_mul_i64(TCGv ret, TCGv arg1, TCGv arg2)
 
 static inline void tcg_gen_muli_i64(TCGv ret, TCGv arg1, int64_t arg2)
 {
-    tcg_gen_mul_i64(ret, arg1, tcg_const_i64(arg2));
+    TCGv t0 = tcg_const_i64(arg2);
+    tcg_gen_mul_i64(ret, arg1, t0);
+    tcg_temp_free(t0);
 }
 
 #ifdef TCG_TARGET_HAS_div_i64
@@ -952,6 +1030,7 @@ static inline void tcg_gen_div_i64(TCGv ret, TCGv arg1, TCGv arg2)
     t0 = tcg_temp_new(TCG_TYPE_I64);
     tcg_gen_sari_i64(t0, arg1, 63);
     tcg_gen_op5(INDEX_op_div2_i64, ret, t0, arg1, t0, arg2);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_rem_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -960,6 +1039,7 @@ static inline void tcg_gen_rem_i64(TCGv ret, TCGv arg1, TCGv arg2)
     t0 = tcg_temp_new(TCG_TYPE_I64);
     tcg_gen_sari_i64(t0, arg1, 63);
     tcg_gen_op5(INDEX_op_div2_i64, t0, ret, arg1, t0, arg2);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_divu_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -968,6 +1048,7 @@ static inline void tcg_gen_divu_i64(TCGv ret, TCGv arg1, TCGv arg2)
     t0 = tcg_temp_new(TCG_TYPE_I64);
     tcg_gen_movi_i64(t0, 0);
     tcg_gen_op5(INDEX_op_divu2_i64, ret, t0, arg1, t0, arg2);
+    tcg_temp_free(t0);
 }
 
 static inline void tcg_gen_remu_i64(TCGv ret, TCGv arg1, TCGv arg2)
@@ -976,6 +1057,7 @@ static inline void tcg_gen_remu_i64(TCGv ret, TCGv arg1, TCGv arg2)
     t0 = tcg_temp_new(TCG_TYPE_I64);
     tcg_gen_movi_i64(t0, 0);
     tcg_gen_op5(INDEX_op_divu2_i64, t0, ret, arg1, t0, arg2);
+    tcg_temp_free(t0);
 }
 #endif
 
@@ -1030,6 +1112,8 @@ static inline void tcg_gen_bswap16_i32(TCGv ret, TCGv arg)
     tcg_gen_andi_i32(t1, arg, 0x000000ff);
     tcg_gen_shli_i32(t1, t1, 8);
     tcg_gen_or_i32(ret, t0, t1);
+    tcg_temp_free(t0);
+    tcg_temp_free(t1);
 #endif
 }
 
@@ -1054,6 +1138,8 @@ static inline void tcg_gen_bswap_i32(TCGv ret, TCGv arg)
     
     tcg_gen_shri_i32(t1, arg, 24);
     tcg_gen_or_i32(ret, t0, t1);
+    tcg_temp_free(t0);
+    tcg_temp_free(t1);
 #endif
 }
 
@@ -1121,6 +1207,8 @@ static inline void tcg_gen_bswap_i64(TCGv ret, TCGv arg)
     tcg_gen_bswap_i32(t1, TCGV_HIGH(arg));
     tcg_gen_mov_i32(ret, t1);
     tcg_gen_mov_i32(TCGV_HIGH(ret), t0);
+    tcg_temp_free(t0);
+    tcg_temp_free(t1);
 }
 #else
 
@@ -1227,6 +1315,8 @@ static inline void tcg_gen_bswap_i64(TCGv ret, TCGv arg)
 
     tcg_gen_shri_i64(t1, arg, 56);
     tcg_gen_or_i64(ret, t0, t1);
+    tcg_temp_free(t0);
+    tcg_temp_free(t1);
 #endif
 }
 
@@ -1237,7 +1327,9 @@ static inline void tcg_gen_neg_i32(TCGv ret, TCGv arg)
 #ifdef TCG_TARGET_HAS_neg_i32
     tcg_gen_op2(INDEX_op_neg_i32, ret, arg);
 #else
-    tcg_gen_sub_i32(ret, tcg_const_i32(0), arg);
+    TCGv t0 = tcg_const_i32(0);
+    tcg_gen_sub_i32(ret, t0, arg);
+    tcg_temp_free(t0);
 #endif
 }
 
@@ -1246,18 +1338,20 @@ static inline void tcg_gen_neg_i64(TCGv ret, TCGv arg)
 #ifdef TCG_TARGET_HAS_neg_i64
     tcg_gen_op2(INDEX_op_neg_i64, ret, arg);
 #else
-    tcg_gen_sub_i64(ret, tcg_const_i64(0), arg);
+    TCGv t0 = tcg_const_i64(0);
+    tcg_gen_sub_i64(ret, t0, arg);
+    tcg_temp_free(t0);
 #endif
 }
 
 static inline void tcg_gen_not_i32(TCGv ret, TCGv arg)
 {
-    tcg_gen_xor_i32(ret, arg, tcg_const_i32(-1));
+    tcg_gen_xori_i32(ret, arg, -1);
 }
 
 static inline void tcg_gen_not_i64(TCGv ret, TCGv arg)
 {
-    tcg_gen_xor_i64(ret, arg, tcg_const_i64(-1));
+    tcg_gen_xori_i64(ret, arg, -1);
 }
 
 static inline void tcg_gen_discard_i32(TCGv arg)

tcg/tcg.h

@@ -98,6 +98,7 @@ typedef int TCGType;
 
 #define TCG_TYPE_I32 0
 #define TCG_TYPE_I64 1
+#define TCG_TYPE_COUNT 2 /* number of different types */
 
 #if TCG_TARGET_REG_BITS == 32
 #define TCG_TYPE_PTR TCG_TYPE_I32
@@ -188,6 +189,9 @@ typedef struct TCGTemp {
     unsigned int fixed_reg:1;
     unsigned int mem_coherent:1;
     unsigned int mem_allocated:1;
+    unsigned int temp_allocated:1; /* never used for code gen */
+    /* index of next free temp of same base type, -1 if end */
+    int next_free_temp;
     const char *name;
 } TCGTemp;
 
@@ -208,6 +212,8 @@ struct TCGContext {
     TCGTemp *temps; /* globals first, temps after */
     int nb_globals;
     int nb_temps;
+    int first_free_temp[TCG_TYPE_COUNT]; /* index of free temps, -1 if none */
+
     /* constant indexes (end of temp array) */
     int const_start;
     int const_end;
@@ -236,6 +242,7 @@ struct TCGContext {
     TCGHelperInfo *helpers;
     int nb_helpers;
     int allocated_helpers;
+    int helpers_sorted;
 
 #ifdef CONFIG_PROFILER
     /* profiling info */
@@ -299,6 +306,7 @@ TCGv tcg_global_reg2_new_hack(TCGType type, int reg1, int reg2,
 TCGv tcg_global_mem_new(TCGType type, int reg, tcg_target_long offset,
                         const char *name);
 TCGv tcg_temp_new(TCGType type);
+void tcg_temp_free(TCGv arg);
 char *tcg_get_arg_str(TCGContext *s, char *buf, int buf_size, TCGv arg);
 void tcg_dump_info(FILE *f,
                    int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
@@ -381,9 +389,6 @@ TCGv tcg_const_i64(int64_t val);
 
 void tcg_out_reloc(TCGContext *s, uint8_t *code_ptr, int type, 
                    int label_index, long addend);
-void tcg_reg_alloc_start(TCGContext *s);
-void tcg_reg_alloc_bb_end(TCGContext *s);
-void tcg_liveness_analysis(TCGContext *s);
 const TCGArg *tcg_gen_code_op(TCGContext *s, int opc, const TCGArg *args1,
                               unsigned int dead_iargs);