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authorFilip Navara <filip.navara@gmail.com>2009-10-15 12:00:48 +0200
committerAurelien Jarno <aurelien@aurel32.net>2009-10-17 23:52:16 +0200
commit12edd4f269a74249abb554253ca8bb2de0359286 (patch)
tree2ae60798aaad2f3073baf7a998e6cdb111e199b4 /target-arm/translate.c
parenttarget-arm: use tcg_global_mem_new_i32 to allocate registers (diff)
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target-arm: 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> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-arm/translate.c')
-rw-r--r--target-arm/translate.c31
1 files changed, 3 insertions, 28 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 935cfe73e..10706d076 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -109,44 +109,20 @@ void arm_translate_init(void)
#include "helpers.h"
}
-/* The code generator doesn't like lots of temporaries, so maintain our own
- cache for reuse within a function. */
-#define MAX_TEMPS 8
static int num_temps;
-static TCGv temps[MAX_TEMPS];
/* Allocate a temporary variable. */
static TCGv_i32 new_tmp(void)
{
- TCGv tmp;
- if (num_temps == MAX_TEMPS)
- abort();
-
- if (GET_TCGV_I32(temps[num_temps]))
- return temps[num_temps++];
-
- tmp = tcg_temp_new_i32();
- temps[num_temps++] = tmp;
- return tmp;
+ num_temps++;
+ return tcg_temp_new_i32();
}
/* Release a temporary variable. */
static void dead_tmp(TCGv tmp)
{
- int i;
+ tcg_temp_free(tmp);
num_temps--;
- i = num_temps;
- if (TCGV_EQUAL(temps[i], tmp))
- return;
-
- /* Shuffle this temp to the last slot. */
- while (!TCGV_EQUAL(temps[i], tmp))
- i--;
- while (i < num_temps) {
- temps[i] = temps[i + 1];
- i++;
- }
- temps[i] = tmp;
}
static inline TCGv load_cpu_offset(int offset)
@@ -8710,7 +8686,6 @@ static inline void gen_intermediate_code_internal(CPUState *env,
/* generate intermediate code */
num_temps = 0;
- memset(temps, 0, sizeof(temps));
pc_start = tb->pc;