diff options
| -rw-r--r-- | include/tcg/tcg.h | 12 | ||||
| -rw-r--r-- | tcg/optimize.c | 2 | ||||
| -rw-r--r-- | tcg/tcg.c | 18 |
3 files changed, 18 insertions, 14 deletions
diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index 59854f95b1..2010e746ca 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -433,11 +433,15 @@ typedef enum TCGTempVal { typedef enum TCGTempKind { /* Temp is dead at the end of all basic blocks. */ TEMP_NORMAL, - /* Temp is live across conditional branch, but dead otherwise. */ + /* + * Temp is dead at the end of the extended basic block (EBB), + * the single-entry multiple-exit region that falls through + * conditional branches. + */ TEMP_EBB, - /* Temp is saved across basic blocks but dead at the end of TBs. */ - TEMP_LOCAL, - /* Temp is saved across both basic blocks and translation blocks. */ + /* Temp is live across the entire translation block, but dead at end. */ + TEMP_TB, + /* Temp is live across the entire translation block, and between them. */ TEMP_GLOBAL, /* Temp is in a fixed register. */ TEMP_FIXED, diff --git a/tcg/optimize.c b/tcg/optimize.c index 763bca9ea6..ce05989c39 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -190,7 +190,7 @@ static TCGTemp *find_better_copy(TCGContext *s, TCGTemp *ts) } else if (i->kind > ts->kind) { if (i->kind == TEMP_GLOBAL) { g = i; - } else if (i->kind == TEMP_LOCAL) { + } else if (i->kind == TEMP_TB) { l = i; } } diff --git a/tcg/tcg.c b/tcg/tcg.c index 9739e4830f..1a31a30a0d 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1257,7 +1257,7 @@ TCGTemp *tcg_global_mem_new_internal(TCGType type, TCGv_ptr base, TCGTemp *tcg_temp_new_internal(TCGType type, bool temp_local) { TCGContext *s = tcg_ctx; - TCGTempKind kind = temp_local ? TEMP_LOCAL : TEMP_NORMAL; + TCGTempKind kind = temp_local ? TEMP_TB : TEMP_NORMAL; TCGTemp *ts; int idx, k; @@ -1368,7 +1368,7 @@ void tcg_temp_free_internal(TCGTemp *ts) */ return; case TEMP_NORMAL: - case TEMP_LOCAL: + case TEMP_TB: break; default: g_assert_not_reached(); @@ -1914,7 +1914,7 @@ static void tcg_reg_alloc_start(TCGContext *s) case TEMP_EBB: val = TEMP_VAL_DEAD; /* fall through */ - case TEMP_LOCAL: + case TEMP_TB: ts->mem_allocated = 0; break; default: @@ -1936,7 +1936,7 @@ static char *tcg_get_arg_str_ptr(TCGContext *s, char *buf, int buf_size, case TEMP_GLOBAL: pstrcpy(buf, buf_size, ts->name); break; - case TEMP_LOCAL: + case TEMP_TB: snprintf(buf, buf_size, "loc%d", idx - s->nb_globals); break; case TEMP_EBB: @@ -2758,7 +2758,7 @@ static void la_bb_end(TCGContext *s, int ng, int nt) switch (ts->kind) { case TEMP_FIXED: case TEMP_GLOBAL: - case TEMP_LOCAL: + case TEMP_TB: state = TS_DEAD | TS_MEM; break; case TEMP_NORMAL: @@ -2803,7 +2803,7 @@ static void la_bb_sync(TCGContext *s, int ng, int nt) int state; switch (ts->kind) { - case TEMP_LOCAL: + case TEMP_TB: state = ts->state; ts->state = state | TS_MEM; if (state != TS_DEAD) { @@ -3496,7 +3496,7 @@ static void temp_free_or_dead(TCGContext *s, TCGTemp *ts, int free_or_dead) case TEMP_FIXED: return; case TEMP_GLOBAL: - case TEMP_LOCAL: + case TEMP_TB: new_type = TEMP_VAL_MEM; break; case TEMP_NORMAL: @@ -3784,7 +3784,7 @@ static void tcg_reg_alloc_bb_end(TCGContext *s, TCGRegSet allocated_regs) TCGTemp *ts = &s->temps[i]; switch (ts->kind) { - case TEMP_LOCAL: + case TEMP_TB: temp_save(s, ts, allocated_regs); break; case TEMP_NORMAL: @@ -3821,7 +3821,7 @@ static void tcg_reg_alloc_cbranch(TCGContext *s, TCGRegSet allocated_regs) * Keep tcg_debug_asserts for safety. */ switch (ts->kind) { - case TEMP_LOCAL: + case TEMP_TB: tcg_debug_assert(ts->val_type != TEMP_VAL_REG || ts->mem_coherent); break; case TEMP_NORMAL: |