haraldwolff/qemu-patch-raspberry4
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s390x: Fix stoc direction

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The store conditional instruction wants to store when the condition
is fulfilled, so we should branch out when it's not true.

The code today branches out when the condition is true, clearly
reversing the logic. Fix it up by negating the condition.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Alexander Graf 2015-04-15 03:45:41 +02:00
parent 968bb75c34
commit c095ed731c
1 changed files with 4 additions and 0 deletions
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4
target-s390x/translate.c
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@ -3082,6 +3082,10 @@ static ExitStatus op_soc(DisasContext *s, DisasOps *o)
disas_jcc(s, &c, get_field(s->fields, m3));
/* We want to store when the condition is fulfilled, so branch
out when it's not */
c.cond = tcg_invert_cond(c.cond);
lab = gen_new_label();
if (c.is_64) {
tcg_gen_brcond_i64(c.cond, c.u.s64.a, c.u.s64.b, lab);