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| author | WANG Xuerui <git@xen0n.name> | 2021-12-21 13:40:59 +0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-12-21 13:17:06 -0800 |
| commit | 30d420e4d35eca26e61c57b21ddc5c9f34894846 (patch) | |
| tree | be557332d09b781e979e0b544e8614564c8762fe | |
| parent | 697a59805933ca58f20d407ee2cb0f2a2c19fba1 (diff) | |
| download | qemu-30d420e4d35eca26e61c57b21ddc5c9f34894846.zip qemu-30d420e4d35eca26e61c57b21ddc5c9f34894846.tar.gz qemu-30d420e4d35eca26e61c57b21ddc5c9f34894846.tar.bz2 | |
tcg/loongarch64: Implement exit_tb/goto_tb
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-26-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | tcg/loongarch64/tcg-target.c.inc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc index 0b7d645..92a30b7 100644 --- a/tcg/loongarch64/tcg-target.c.inc +++ b/tcg/loongarch64/tcg-target.c.inc @@ -980,6 +980,25 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, int c2 = const_args[2]; switch (opc) { + case INDEX_op_exit_tb: + /* Reuse the zeroing that exists for goto_ptr. */ + if (a0 == 0) { + tcg_out_call_int(s, tcg_code_gen_epilogue, true); + } else { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_A0, a0); + tcg_out_call_int(s, tb_ret_addr, true); + } + break; + + case INDEX_op_goto_tb: + assert(s->tb_jmp_insn_offset == 0); + /* indirect jump method */ + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP0, TCG_REG_ZERO, + (uintptr_t)(s->tb_jmp_target_addr + a0)); + tcg_out_opc_jirl(s, TCG_REG_ZERO, TCG_REG_TMP0, 0); + set_jmp_reset_offset(s, a0); + break; + case INDEX_op_mb: tcg_out_mb(s, a0); break; |