diff options
| -rw-r--r-- | tcg/tcg.c | 21 |
1 files changed, 0 insertions, 21 deletions
@@ -23,7 +23,6 @@ */ /* define it to use liveness analysis (better code) */ -#define USE_LIVENESS_ANALYSIS #define USE_TCG_OPTIMIZATIONS #include "qemu/osdep.h" @@ -1337,8 +1336,6 @@ void tcg_op_remove(TCGContext *s, TCGOp *op) #endif } -#ifdef USE_LIVENESS_ANALYSIS - #define TS_DEAD 1 #define TS_MEM 2 @@ -1595,18 +1592,6 @@ static void tcg_liveness_analysis(TCGContext *s) op->life = arg_life; } } -#else -/* dummy liveness analysis */ -static void tcg_liveness_analysis(TCGContext *s) -{ - int nb_ops = s->gen_next_op_idx; - - s->op_dead_args = tcg_malloc(nb_ops * sizeof(uint16_t)); - memset(s->op_dead_args, 0, nb_ops * sizeof(uint16_t)); - s->op_sync_args = tcg_malloc(nb_ops * sizeof(uint8_t)); - memset(s->op_sync_args, 0, nb_ops * sizeof(uint8_t)); -} -#endif #ifdef CONFIG_DEBUG_TCG static void dump_regs(TCGContext *s) @@ -1858,7 +1843,6 @@ static void temp_load(TCGContext *s, TCGTemp *ts, TCGRegSet desired_regs, temporary registers needs to be allocated to store a constant. */ static void temp_save(TCGContext *s, TCGTemp *ts, TCGRegSet allocated_regs) { -#ifdef USE_LIVENESS_ANALYSIS /* ??? Liveness does not yet incorporate indirect bases. */ if (!ts->indirect_base) { /* The liveness analysis already ensures that globals are back @@ -1866,7 +1850,6 @@ static void temp_save(TCGContext *s, TCGTemp *ts, TCGRegSet allocated_regs) tcg_debug_assert(ts->val_type == TEMP_VAL_MEM || ts->fixed_reg); return; } -#endif temp_sync(s, ts, allocated_regs, 1); } @@ -1891,7 +1874,6 @@ static void sync_globals(TCGContext *s, TCGRegSet allocated_regs) for (i = 0; i < s->nb_globals; i++) { TCGTemp *ts = &s->temps[i]; -#ifdef USE_LIVENESS_ANALYSIS /* ??? Liveness does not yet incorporate indirect bases. */ if (!ts->indirect_base) { tcg_debug_assert(ts->val_type != TEMP_VAL_REG @@ -1899,7 +1881,6 @@ static void sync_globals(TCGContext *s, TCGRegSet allocated_regs) || ts->mem_coherent); continue; } -#endif temp_sync(s, ts, allocated_regs, 0); } } @@ -1915,7 +1896,6 @@ static void tcg_reg_alloc_bb_end(TCGContext *s, TCGRegSet allocated_regs) if (ts->temp_local) { temp_save(s, ts, allocated_regs); } else { -#ifdef USE_LIVENESS_ANALYSIS /* ??? Liveness does not yet incorporate indirect bases. */ if (!ts->indirect_base) { /* The liveness analysis already ensures that temps are dead. @@ -1923,7 +1903,6 @@ static void tcg_reg_alloc_bb_end(TCGContext *s, TCGRegSet allocated_regs) tcg_debug_assert(ts->val_type == TEMP_VAL_DEAD); continue; } -#endif temp_dead(s, ts); } } |