motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-11 03:24:58 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target-arm: get rid of temporary variable cache

Browse source 
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>
This commit is contained in:
Filip Navara 2009-10-15 12:00:48 +02:00 • committed by Aurelien Jarno
parent 155c3eacd2
commit 12edd4f269
1 changed files with 3 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

31
target-arm/translate.c
View file

@ -109,44 +109,20 @@ void arm_translate_init(void)
#include "helpers.h" #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 int num_temps;
static TCGv temps[MAX_TEMPS];
/* Allocate a temporary variable. */ /* Allocate a temporary variable. */
static TCGv_i32 new_tmp(void) static TCGv_i32 new_tmp(void)
{ {
TCGv tmp; num_temps++;
if (num_temps == MAX_TEMPS) return tcg_temp_new_i32();
abort();
if (GET_TCGV_I32(temps[num_temps]))
return temps[num_temps++];
tmp = tcg_temp_new_i32();
temps[num_temps++] = tmp;
return tmp;
} }
/* Release a temporary variable. */ /* Release a temporary variable. */
static void dead_tmp(TCGv tmp) static void dead_tmp(TCGv tmp)
{ {
int i; tcg_temp_free(tmp);
num_temps--; 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) static inline TCGv load_cpu_offset(int offset)
@ -8710,7 +8686,6 @@ static inline void gen_intermediate_code_internal(CPUState *env,
/* generate intermediate code */ /* generate intermediate code */
num_temps = 0; num_temps = 0;
memset(temps, 0, sizeof(temps));
pc_start = tb->pc; pc_start = tb->pc;