gwj / at91sam9263 · Commits

Commit 302baf9367292880b3dbcfb243abff36dbb4c4e8

Authored by Filip Navara
1 parent a018d617

Get rid of temporary variable cache. 

The temporary variable cache in no longer need since tcg_temp_free was introduced.

Signed-off-by: Filip Navara <filip.navara@gmail.com>
Inline Side-by-side
Showing 1 changed file with 3 additions and 28 deletions
target-arm/translate.c
  View file @302baf9
... ... @@ -110,44 +110,20 @@ void arm_translate_init(void)
110 110 #include "helpers.h"
111 111 }
112 112  
113   -/* The code generator doesn't like lots of temporaries, so maintain our own
114   - cache for reuse within a function. */
115   -#define MAX_TEMPS 8
116 113 static int num_temps;
117   -static TCGv temps[MAX_TEMPS];
118 114  
119 115 /* Allocate a temporary variable. */
120 116 static TCGv_i32 new_tmp(void)
121 117 {
122   - TCGv tmp;
123   - if (num_temps == MAX_TEMPS)
124   - abort();
125   -
126   - if (GET_TCGV_I32(temps[num_temps]))
127   - return temps[num_temps++];
128   -
129   - tmp = tcg_temp_new_i32();
130   - temps[num_temps++] = tmp;
131   - return tmp;
  118 + num_temps++;
  119 + return tcg_temp_new_i32();
132 120 }
133 121  
134 122 /* Release a temporary variable. */
135 123 static void dead_tmp(TCGv tmp)
136 124 {
137   - int i;
  125 + tcg_temp_free(tmp);
138 126 num_temps--;
139   - i = num_temps;
140   - if (TCGV_EQUAL(temps[i], tmp))
141   - return;
142   -
143   - /* Shuffle this temp to the last slot. */
144   - while (!TCGV_EQUAL(temps[i], tmp))
145   - i--;
146   - while (i < num_temps) {
147   - temps[i] = temps[i + 1];
148   - i++;
149   - }
150   - temps[i] = tmp;
151 127 }
152 128  
153 129 static inline TCGv load_cpu_offset(int offset)
... ... @@ -8760,7 +8736,6 @@ static inline void gen_intermediate_code_internal(CPUState *env,
8760 8736  
8761 8737 /* generate intermediate code */
8762 8738 num_temps = 0;
8763   - memset(temps, 0, sizeof(temps));
8764 8739  
8765 8740 pc_start = tb->pc;
8766 8741  
... ...