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| author | Sergey Fedorov <serge.fdrv@gmail.com> | 2016-04-10 23:35:45 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-05-12 14:06:41 -1000 |
| commit | f309101c26b59641fc1aa8fb2a98a5441cdaea03 (patch) | |
| tree | 9c0509fddf84c84027cc9bf8292219c3dbe62c12 /tcg/ppc | |
| parent | 7ba6a512ae439c98c0c1f0f4348c079d90f9dd9d (diff) | |
| download | focaccia-qemu-f309101c26b59641fc1aa8fb2a98a5441cdaea03.tar.gz focaccia-qemu-f309101c26b59641fc1aa8fb2a98a5441cdaea03.zip | |
tcg: Clean up direct block chaining data fields
Briefly describe in a comment how direct block chaining is done. It should help in understanding of the following data fields. Rename some fields in TranslationBlock and TCGContext structures to better reflect their purpose (dropping excessive 'tb_' prefix in TranslationBlock but keeping it in TCGContext): tb_next_offset => jmp_reset_offset tb_jmp_offset => jmp_insn_offset tb_next => jmp_target_addr jmp_next => jmp_list_next jmp_first => jmp_list_first Avoid using a magic constant as an invalid offset which is used to indicate that there's no n-th jump generated. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/ppc')
| -rw-r--r-- | tcg/ppc/tcg-target.inc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c index 039fa77748..da100528ab 100644 --- a/tcg/ppc/tcg-target.inc.c +++ b/tcg/ppc/tcg-target.inc.c @@ -1902,14 +1902,14 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, tcg_out_b(s, 0, tb_ret_addr); break; case INDEX_op_goto_tb: - tcg_debug_assert(s->tb_jmp_offset); + tcg_debug_assert(s->tb_jmp_insn_offset); /* Direct jump. */ #ifdef __powerpc64__ /* Ensure the next insns are 8-byte aligned. */ if ((uintptr_t)s->code_ptr & 7) { tcg_out32(s, NOP); } - s->tb_jmp_offset[args[0]] = tcg_current_code_size(s); + s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s); /* To be replaced by either a branch+nop or a load into TMP1. */ s->code_ptr += 2; tcg_out32(s, MTSPR | RS(TCG_REG_TMP1) | CTR); @@ -1918,7 +1918,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, /* To be replaced by a branch. */ s->code_ptr++; #endif - s->tb_next_offset[args[0]] = tcg_current_code_size(s); + s->tb_jmp_reset_offset[args[0]] = tcg_current_code_size(s); break; case INDEX_op_br: { |