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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-11-26 17:14:05 -0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-01-17 09:56:45 -1000 |
| commit | cf7d6b8e9828784d118eebb6419678d196cd51b5 (patch) | |
| tree | 08a9edd8cfd9555e7f4ef518a43ac7f86a15da33 /tcg/loongarch64 | |
| parent | becc452a367aa681ca0c1fcb688ae0f16b32b11f (diff) | |
| download | qemu-cf7d6b8e9828784d118eebb6419678d196cd51b5.zip qemu-cf7d6b8e9828784d118eebb6419678d196cd51b5.tar.gz qemu-cf7d6b8e9828784d118eebb6419678d196cd51b5.tar.bz2 | |
tcg: Split out tcg_out_goto_tb
The INDEX_op_goto_tb opcode needs no register allocation.
Split out a dedicated helper function for it.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/loongarch64')
| -rw-r--r-- | tcg/loongarch64/tcg-target.c.inc | 38 |
1 files changed, 20 insertions, 18 deletions
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc index bce7340..25de7a9 100644 --- a/tcg/loongarch64/tcg-target.c.inc +++ b/tcg/loongarch64/tcg-target.c.inc @@ -1079,6 +1079,25 @@ static void tcg_out_exit_tb(TCGContext *s, uintptr_t a0) } } +static void tcg_out_goto_tb(TCGContext *s, int which) +{ + /* + * Ensure that patch area is 8-byte aligned so that an + * atomic write can be used to patch the target address. + */ + if ((uintptr_t)s->code_ptr & 7) { + tcg_out_nop(s); + } + set_jmp_insn_offset(s, which); + /* + * actual branch destination will be patched by + * tb_target_set_jmp_target later + */ + tcg_out_opc_pcaddu18i(s, TCG_REG_TMP0, 0); + tcg_out_opc_jirl(s, TCG_REG_ZERO, TCG_REG_TMP0, 0); + set_jmp_reset_offset(s, which); +} + static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg args[TCG_MAX_OP_ARGS], const int const_args[TCG_MAX_OP_ARGS]) @@ -1089,24 +1108,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, int c2 = const_args[2]; switch (opc) { - case INDEX_op_goto_tb: - /* - * Ensure that patch area is 8-byte aligned so that an - * atomic write can be used to patch the target address. - */ - if ((uintptr_t)s->code_ptr & 7) { - tcg_out_nop(s); - } - set_jmp_insn_offset(s, a0); - /* - * actual branch destination will be patched by - * tb_target_set_jmp_target later - */ - tcg_out_opc_pcaddu18i(s, TCG_REG_TMP0, 0); - 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; @@ -1501,6 +1502,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_mov_i64: case INDEX_op_call: /* Always emitted via tcg_out_call. */ case INDEX_op_exit_tb: /* Always emitted via tcg_out_exit_tb. */ + case INDEX_op_goto_tb: /* Always emitted via tcg_out_goto_tb. */ default: g_assert_not_reached(); } |