diff options
Diffstat (limited to 'tcg/tcg.h')
| -rw-r--r-- | tcg/tcg.h | 58 |
1 files changed, 41 insertions, 17 deletions
@@ -448,10 +448,28 @@ typedef struct TCGTempSet { unsigned long l[BITS_TO_LONGS(TCG_MAX_TEMPS)]; } TCGTempSet; +typedef struct TCGOp { + TCGOpcode opc : 8; + + /* The number of out and in parameter for a call. */ + unsigned callo : 2; + unsigned calli : 6; + + /* Index of the arguments for this op, or -1 for zero-operand ops. */ + signed args : 16; + + /* Index of the prex/next op, or -1 for the end of the list. */ + signed prev : 16; + signed next : 16; +} TCGOp; + +QEMU_BUILD_BUG_ON(NB_OPS > 0xff); +QEMU_BUILD_BUG_ON(OPC_BUF_SIZE >= 0x7fff); +QEMU_BUILD_BUG_ON(OPPARAM_BUF_SIZE >= 0x7fff); + struct TCGContext { uint8_t *pool_cur, *pool_end; TCGPool *pool_first, *pool_current, *pool_first_large; - TCGLabel *labels; int nb_labels; int nb_globals; int nb_temps; @@ -469,9 +487,6 @@ struct TCGContext { corresponding output argument needs to be sync to memory. */ - /* tells in which temporary a given register is. It does not take - into account fixed registers */ - int reg_to_temp[TCG_TARGET_NB_REGS]; TCGRegSet reserved_regs; intptr_t current_frame_offset; intptr_t frame_start; @@ -479,8 +494,6 @@ struct TCGContext { int frame_reg; tcg_insn_unit *code_ptr; - TCGTemp temps[TCG_MAX_TEMPS]; /* globals first, temps after */ - TCGTempSet free_temps[TCG_TYPE_COUNT * 2]; GHashTable *helpers; @@ -508,14 +521,10 @@ struct TCGContext { int goto_tb_issue_mask; #endif - uint16_t gen_opc_buf[OPC_BUF_SIZE]; - TCGArg gen_opparam_buf[OPPARAM_BUF_SIZE]; - - uint16_t *gen_opc_ptr; - TCGArg *gen_opparam_ptr; - target_ulong gen_opc_pc[OPC_BUF_SIZE]; - uint16_t gen_opc_icount[OPC_BUF_SIZE]; - uint8_t gen_opc_instr_start[OPC_BUF_SIZE]; + int gen_first_op_idx; + int gen_last_op_idx; + int gen_next_op_idx; + int gen_next_parm_idx; /* Code generation. Note that we specifically do not use tcg_insn_unit here, because there's too much arithmetic throughout that relies @@ -533,6 +542,22 @@ struct TCGContext { /* The TCGBackendData structure is private to tcg-target.c. */ struct TCGBackendData *be; + + TCGTempSet free_temps[TCG_TYPE_COUNT * 2]; + TCGTemp temps[TCG_MAX_TEMPS]; /* globals first, temps after */ + + /* tells in which temporary a given register is. It does not take + into account fixed registers */ + int reg_to_temp[TCG_TARGET_NB_REGS]; + + TCGOp gen_op_buf[OPC_BUF_SIZE]; + TCGArg gen_opparam_buf[OPPARAM_BUF_SIZE]; + + target_ulong gen_opc_pc[OPC_BUF_SIZE]; + uint16_t gen_opc_icount[OPC_BUF_SIZE]; + uint8_t gen_opc_instr_start[OPC_BUF_SIZE]; + + TCGLabel labels[TCG_MAX_LABELS]; }; extern TCGContext tcg_ctx; @@ -540,7 +565,7 @@ extern TCGContext tcg_ctx; /* The number of opcodes emitted so far. */ static inline int tcg_op_buf_count(void) { - return tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; + return tcg_ctx.gen_next_op_idx; } /* Test for whether to terminate the TB for using too many opcodes. */ @@ -718,8 +743,7 @@ void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs); void tcg_gen_callN(TCGContext *s, void *func, TCGArg ret, int nargs, TCGArg *args); -TCGArg *tcg_optimize(TCGContext *s, uint16_t *tcg_opc_ptr, TCGArg *args, - TCGOpDef *tcg_op_def); +void tcg_optimize(TCGContext *s); /* only used for debugging purposes */ void tcg_dump_ops(TCGContext *s); |