diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2022-11-26 12:42:06 -0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-01-17 09:55:13 -1000 |
| commit | b55a8d9d0bb486c0ad7a34985ec43f22fae930c3 (patch) | |
| tree | fb08dd0ce145764a3afc8d27de0e2fdccba0b420 /tcg/i386 | |
| parent | 7c9236d6d61f30583d5d860097d88dbf0fe487bf (diff) | |
tcg: Split out tcg_out_exit_tb
The INDEX_op_exit_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/i386')
| -rw-r--r-- | tcg/i386/tcg-target.c.inc | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index 58bd5873f5..feb257db01 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -2347,6 +2347,17 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64) #endif } +static void tcg_out_exit_tb(TCGContext *s, uintptr_t a0) +{ + /* Reuse the zeroing that exists for goto_ptr. */ + if (a0 == 0) { + tcg_out_jmp(s, tcg_code_gen_epilogue); + } else { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_EAX, a0); + tcg_out_jmp(s, tb_ret_addr); + } +} + static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg args[TCG_MAX_OP_ARGS], const int const_args[TCG_MAX_OP_ARGS]) @@ -2371,15 +2382,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const_a2 = const_args[2]; switch (opc) { - case INDEX_op_exit_tb: - /* Reuse the zeroing that exists for goto_ptr. */ - if (a0 == 0) { - tcg_out_jmp(s, tcg_code_gen_epilogue); - } else { - tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_EAX, a0); - tcg_out_jmp(s, tb_ret_addr); - } - break; case INDEX_op_goto_tb: if (s->tb_jmp_insn_offset) { /* direct jump method */ @@ -2794,6 +2796,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ 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. */ default: tcg_abort(); } |