target/s390x: Use Int128 for return from CLST
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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@ -16,7 +16,7 @@ DEF_HELPER_FLAGS_3(divs64, TCG_CALL_NO_WG, i128, env, s64, s64)
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DEF_HELPER_FLAGS_4(divu64, TCG_CALL_NO_WG, i128, env, i64, i64, i64)
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DEF_HELPER_3(srst, void, env, i32, i32)
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DEF_HELPER_3(srstu, void, env, i32, i32)
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DEF_HELPER_4(clst, i64, env, i64, i64, i64)
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DEF_HELPER_4(clst, i128, env, i64, i64, i64)
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DEF_HELPER_FLAGS_4(mvn, TCG_CALL_NO_WG, void, env, i32, i64, i64)
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DEF_HELPER_FLAGS_4(mvo, TCG_CALL_NO_WG, void, env, i32, i64, i64)
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DEF_HELPER_FLAGS_4(mvpg, TCG_CALL_NO_WG, i32, env, i64, i32, i32)
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@ -886,7 +886,7 @@ void HELPER(srstu)(CPUS390XState *env, uint32_t r1, uint32_t r2)
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}
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/* unsigned string compare (c is string terminator) */
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uint64_t HELPER(clst)(CPUS390XState *env, uint64_t c, uint64_t s1, uint64_t s2)
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Int128 HELPER(clst)(CPUS390XState *env, uint64_t c, uint64_t s1, uint64_t s2)
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{
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uintptr_t ra = GETPC();
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uint32_t len;
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@ -904,23 +904,20 @@ uint64_t HELPER(clst)(CPUS390XState *env, uint64_t c, uint64_t s1, uint64_t s2)
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if (v1 == c) {
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/* Equal. CC=0, and don't advance the registers. */
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env->cc_op = 0;
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env->retxl = s2;
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return s1;
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return int128_make128(s2, s1);
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}
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} else {
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/* Unequal. CC={1,2}, and advance the registers. Note that
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the terminator need not be zero, but the string that contains
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the terminator is by definition "low". */
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env->cc_op = (v1 == c ? 1 : v2 == c ? 2 : v1 < v2 ? 1 : 2);
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env->retxl = s2 + len;
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return s1 + len;
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return int128_make128(s2 + len, s1 + len);
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}
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}
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/* CPU-determined bytes equal; advance the registers. */
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env->cc_op = 3;
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env->retxl = s2 + len;
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return s1 + len;
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return int128_make128(s2 + len, s1 + len);
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}
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/* move page */
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@ -2164,9 +2164,13 @@ static DisasJumpType op_clm(DisasContext *s, DisasOps *o)
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static DisasJumpType op_clst(DisasContext *s, DisasOps *o)
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{
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gen_helper_clst(o->in1, cpu_env, regs[0], o->in1, o->in2);
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TCGv_i128 pair = tcg_temp_new_i128();
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gen_helper_clst(pair, cpu_env, regs[0], o->in1, o->in2);
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tcg_gen_extr_i128_i64(o->in2, o->in1, pair);
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tcg_temp_free_i128(pair);
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set_cc_static(s);
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return_low128(o->in2);
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return DISAS_NEXT;
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}
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