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tcg: Restart when exhausting the stack frame

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Assume that we'll have fewer temps allocated after
restarting with a fewer number of instructions.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-06-19 06:32:03 -07:00
parent c1c091948a
commit 732d58979c
1 changed files with 5 additions and 1 deletions
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6
tcg/tcg.c
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@ -3038,7 +3038,11 @@ static void temp_allocate_frame(TCGContext *s, TCGTemp *ts)
assert(align <= TCG_TARGET_STACK_ALIGN);
off = ROUND_UP(s->current_frame_offset, align);
assert(off + size <= s->frame_end);
/* If we've exhausted the stack frame, restart with a smaller TB. */
if (off + size > s->frame_end) {
tcg_raise_tb_overflow(s);
}
s->current_frame_offset = off + size;
ts->mem_offset = off;