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target/s390x: Use mutable temporary value for op_ts 

Otherwise TCG would assume the register that holds t1 would be constant
and reuse whenever it needs the value within it.

Cc: qemu-stable@nongnu.org
Fixes: f1ea739bd5 ("target/s390x: Use tcg_constant_* in local contexts")
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[iii: Adjust a newline and capitalization, add tags]
Signed-off-by: Ido Plat <ido.plat@ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <20240318202722.20675-1-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Ido Plat 2024-03-18 21:27:10 +01:00 committed by Thomas Huth
parent 66e411885a
commit 272fba9779
1 changed files with 3 additions and 2 deletions
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5
target/s390x/tcg/translate.c
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@ -4781,9 +4781,10 @@ static DisasJumpType op_trXX(DisasContext *s, DisasOps *o)
static DisasJumpType op_ts(DisasContext *s, DisasOps *o)
{
TCGv_i32 t1 = tcg_constant_i32(0xff);
TCGv_i32 ff = tcg_constant_i32(0xff);
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_atomic_xchg_i32(t1, o->in2, t1, get_mem_index(s), MO_UB);
tcg_gen_atomic_xchg_i32(t1, o->in2, ff, get_mem_index(s), MO_UB);
tcg_gen_extract_i32(cc_op, t1, 7, 1);
set_cc_static(s);
return DISAS_NEXT;