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tcg: mark local temps as MEM in dead_temp()

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In dead_temp, local temps should always be marked as back to memory,
even if they have not been allocated (i.e. they are discared before
cross a basic block).

It fixes the following assertion in target-xtensa:

    qemu-system-xtensa: tcg/tcg.c:1665: temp_save: Assertion `s->temps[temp].val_type == 2 || s->temps[temp].fixed_reg' failed.
    Aborted

Reported-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2012-11-24 11:53:55 +01:00
parent 211da99290
commit e5138db510
1 changed files with 1 additions and 1 deletions
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2
tcg/tcg.c
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@ -1615,7 +1615,7 @@ static inline void temp_dead(TCGContext *s, int temp)
if (ts->val_type == TEMP_VAL_REG) { if (ts->val_type == TEMP_VAL_REG) {
s->reg_to_temp[ts->reg] = -1; s->reg_to_temp[ts->reg] = -1;
} }
if (temp < s->nb_globals || (ts->temp_local && ts->mem_allocated)) { if (temp < s->nb_globals || ts->temp_local) {
ts->val_type = TEMP_VAL_MEM; ts->val_type = TEMP_VAL_MEM;
} else { } else {
ts->val_type = TEMP_VAL_DEAD; ts->val_type = TEMP_VAL_DEAD;