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tcg: Fix highwater check 

A simple typo in the variable to use when comparing vs the highwater mark.
Reports are that qemu can in fact segfault occasionally due to this mistake.

Signed-off-by: John Clarke <johnc@kirriwa.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
John Clarke 2015-11-19 10:30:50 +01:00 committed by Richard Henderson
parent 541abd10a0
commit 644da9b39e
1 changed files with 1 additions and 1 deletions
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tcg/tcg.c
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@ -2443,7 +2443,7 @@ int tcg_gen_code(TCGContext *s, tcg_insn_unit *gen_code_buf)
one operation beginning below the high water mark cannot overrun
the buffer completely. Thus we can test for overflow after
generating code without having to check during generation. */
if (unlikely(s->code_gen_ptr > s->code_gen_highwater)) {
if (unlikely((void *)s->code_ptr > s->code_gen_highwater)) {
return -1;
}
}