diff options
Diffstat (limited to 'tcg/tcg.h')
| -rw-r--r-- | tcg/tcg.h | 154 |
1 files changed, 103 insertions, 51 deletions
@@ -21,6 +21,7 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ +#include "qemu-common.h" #include "tcg-target.h" #if TCG_TARGET_REG_BITS == 32 @@ -114,37 +115,61 @@ typedef tcg_target_ulong TCGArg; expecially on targets with braindamaged ABIs (e.g. i386). We use plain int by default to avoid this runtime overhead. Users of tcg_gen_* don't need to know about any of this, and should - treat TCGv as an opaque type. */ + treat TCGv as an opaque type. + In additon we do typechecking for different types of variables. TCGv_i32 + and TCGv_i64 are 32/64-bit variables respectively. TCGv and TCGv_ptr + are aliases for target_ulong and host pointer sized values respectively. + */ -//#define DEBUG_TCGV 1 +#ifdef DEBUG_TCG +#define DEBUG_TCGV 1 +#endif #ifdef DEBUG_TCGV typedef struct { - int n; -} TCGv; + int i32; +} TCGv_i32; -#define MAKE_TCGV(i) __extension__ \ - ({ TCGv make_tcgv_tmp = {i}; make_tcgv_tmp;}) -#define GET_TCGV(t) ((t).n) +typedef struct +{ + int i64; +} TCGv_i64; + +#define MAKE_TCGV_I32(i) __extension__ \ + ({ TCGv_i32 make_tcgv_tmp = {i}; make_tcgv_tmp;}) +#define MAKE_TCGV_I64(i) __extension__ \ + ({ TCGv_i64 make_tcgv_tmp = {i}; make_tcgv_tmp;}) +#define GET_TCGV_I32(t) ((t).i32) +#define GET_TCGV_I64(t) ((t).i64) #if TCG_TARGET_REG_BITS == 32 -#define TCGV_HIGH(t) MAKE_TCGV(GET_TCGV(t) + 1) +#define TCGV_LOW(t) MAKE_TCGV_I32(GET_TCGV_I64(t)) +#define TCGV_HIGH(t) MAKE_TCGV_I32(GET_TCGV_I64(t) + 1) #endif #else /* !DEBUG_TCGV */ -typedef int TCGv; -#define MAKE_TCGV(x) (x) -#define GET_TCGV(t) (t) +typedef int TCGv_i32; +typedef int TCGv_i64; +#define MAKE_TCGV_I32(x) (x) +#define MAKE_TCGV_I64(x) (x) +#define GET_TCGV_I32(t) (t) +#define GET_TCGV_I64(t) (t) + #if TCG_TARGET_REG_BITS == 32 +#define TCGV_LOW(t) (t) #define TCGV_HIGH(t) ((t) + 1) #endif #endif /* DEBUG_TCGV */ +#define TCGV_EQUAL_I32(a, b) (GET_TCGV_I32(a) == GET_TCGV_I32(b)) +#define TCGV_EQUAL_I64(a, b) (GET_TCGV_I64(a) == GET_TCGV_I64(b)) + /* Dummy definition to avoid compiler warnings. */ -#define TCGV_UNUSED(x) x = MAKE_TCGV(-1) +#define TCGV_UNUSED_I32(x) x = MAKE_TCGV_I32(-1) +#define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1) /* call flags */ #define TCG_CALL_TYPE_MASK 0x000f @@ -152,13 +177,17 @@ typedef int TCGv; #define TCG_CALL_TYPE_REGPARM_1 0x0001 /* i386 style regparm call (1 reg) */ #define TCG_CALL_TYPE_REGPARM_2 0x0002 /* i386 style regparm call (2 regs) */ #define TCG_CALL_TYPE_REGPARM 0x0003 /* i386 style regparm call (3 regs) */ -/* A pure function only reads its arguments and globals variables and - cannot raise exceptions. Hence a call to a pure function can be +/* A pure function only reads its arguments and TCG global variables + and cannot raise exceptions. Hence a call to a pure function can be safely suppressed if the return value is not used. */ #define TCG_CALL_PURE 0x0010 +/* A const function only reads its arguments and does not use TCG + global variables. Hence a call to such a function does not + save TCG global variables back to their canonical location. */ +#define TCG_CALL_CONST 0x0020 /* used to align parameters */ -#define TCG_CALL_DUMMY_TCGV MAKE_TCGV(-1) +#define TCG_CALL_DUMMY_TCGV MAKE_TCGV_I32(-1) #define TCG_CALL_DUMMY_ARG ((TCGArg)(-1)) typedef enum { @@ -254,7 +283,6 @@ struct TCGContext { int op_count_max; /* max insn per TB */ int64_t temp_count; int temp_count_max; - int64_t old_op_count; int64_t del_op_count; int64_t code_in_len; int64_t code_out_len; @@ -296,27 +324,42 @@ static inline void *tcg_malloc(int size) void tcg_context_init(TCGContext *s); void tcg_func_start(TCGContext *s); -int dyngen_code(TCGContext *s, uint8_t *gen_code_buf); -int dyngen_code_search_pc(TCGContext *s, uint8_t *gen_code_buf, long offset); +int tcg_gen_code(TCGContext *s, uint8_t *gen_code_buf); +int tcg_gen_code_search_pc(TCGContext *s, uint8_t *gen_code_buf, long offset); void tcg_set_frame(TCGContext *s, int reg, tcg_target_long start, tcg_target_long size); -TCGv tcg_global_reg_new(TCGType type, int reg, const char *name); -TCGv tcg_global_reg2_new_hack(TCGType type, int reg1, int reg2, - const char *name); -TCGv tcg_global_mem_new(TCGType type, int reg, tcg_target_long offset, - const char *name); -TCGv tcg_temp_new_internal(TCGType type, int temp_local); -static inline TCGv tcg_temp_new(TCGType type) + +TCGv_i32 tcg_global_reg_new_i32(int reg, const char *name); +TCGv_i32 tcg_global_mem_new_i32(int reg, tcg_target_long offset, + const char *name); +TCGv_i32 tcg_temp_new_internal_i32(int temp_local); +static inline TCGv_i32 tcg_temp_new_i32(void) +{ + return tcg_temp_new_internal_i32(0); +} +static inline TCGv_i32 tcg_temp_local_new_i32(void) { - return tcg_temp_new_internal(type, 0); + return tcg_temp_new_internal_i32(1); } -static inline TCGv tcg_temp_local_new(TCGType type) +void tcg_temp_free_i32(TCGv_i32 arg); +char *tcg_get_arg_str_i32(TCGContext *s, char *buf, int buf_size, TCGv_i32 arg); + +TCGv_i64 tcg_global_reg_new_i64(int reg, const char *name); +TCGv_i64 tcg_global_mem_new_i64(int reg, tcg_target_long offset, + const char *name); +TCGv_i64 tcg_temp_new_internal_i64(int temp_local); +static inline TCGv_i64 tcg_temp_new_i64(void) { - return tcg_temp_new_internal(type, 1); + return tcg_temp_new_internal_i64(0); } -void tcg_temp_free(TCGv arg); -char *tcg_get_arg_str(TCGContext *s, char *buf, int buf_size, TCGv arg); +static inline TCGv_i64 tcg_temp_local_new_i64(void) +{ + return tcg_temp_new_internal_i64(1); +} +void tcg_temp_free_i64(TCGv_i64 arg); +char *tcg_get_arg_str_i64(TCGContext *s, char *buf, int buf_size, TCGv_i64 arg); + void tcg_dump_info(FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...)); @@ -357,8 +400,6 @@ typedef struct TCGTargetOpDef { const char *args_ct_str[TCG_MAX_OP_ARGS]; } TCGTargetOpDef; -extern TCGOpDef tcg_op_defs[]; - void tcg_target_init(TCGContext *s); void tcg_target_qemu_prologue(TCGContext *s); @@ -370,39 +411,50 @@ do {\ void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs); -void tcg_gen_call(TCGContext *s, TCGv func, unsigned int flags, - unsigned int nb_rets, const TCGv *rets, - unsigned int nb_params, const TCGv *args1); -void tcg_gen_shifti_i64(TCGv ret, TCGv arg1, - int c, int right, int arith); - -/* only used for debugging purposes */ -void tcg_register_helper(void *func, const char *name); -#define TCG_HELPER(func) tcg_register_helper(func, #func) -const char *tcg_helper_get_name(TCGContext *s, void *func); -void tcg_dump_ops(TCGContext *s, FILE *outfile); - -void dump_ops(const uint16_t *opc_buf, const TCGArg *opparam_buf); -TCGv tcg_const_i32(int32_t val); -TCGv tcg_const_i64(int64_t val); - #if TCG_TARGET_REG_BITS == 32 #define tcg_const_ptr tcg_const_i32 #define tcg_add_ptr tcg_add_i32 #define tcg_sub_ptr tcg_sub_i32 +#define TCGv_ptr TCGv_i32 +#define GET_TCGV_PTR GET_TCGV_I32 +#define tcg_global_reg_new_ptr tcg_global_reg_new_i32 +#define tcg_global_mem_new_ptr tcg_global_mem_new_i32 +#define tcg_temp_new_ptr tcg_temp_new_i32 +#define tcg_temp_free_ptr tcg_temp_free_i32 #else #define tcg_const_ptr tcg_const_i64 #define tcg_add_ptr tcg_add_i64 #define tcg_sub_ptr tcg_sub_i64 +#define TCGv_ptr TCGv_i64 +#define GET_TCGV_PTR GET_TCGV_I64 +#define tcg_global_reg_new_ptr tcg_global_reg_new_i64 +#define tcg_global_mem_new_ptr tcg_global_mem_new_i64 +#define tcg_temp_new_ptr tcg_temp_new_i64 +#define tcg_temp_free_ptr tcg_temp_free_i64 #endif +void tcg_gen_callN(TCGContext *s, TCGv_ptr func, unsigned int flags, + int sizemask, TCGArg ret, int nargs, TCGArg *args); + +void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1, + int c, int right, int arith); + +/* only used for debugging purposes */ +void tcg_register_helper(void *func, const char *name); +const char *tcg_helper_get_name(TCGContext *s, void *func); +void tcg_dump_ops(TCGContext *s, FILE *outfile); + +void dump_ops(const uint16_t *opc_buf, const TCGArg *opparam_buf); +TCGv_i32 tcg_const_i32(int32_t val); +TCGv_i64 tcg_const_i64(int64_t val); +TCGv_i32 tcg_const_local_i32(int32_t val); +TCGv_i64 tcg_const_local_i64(int64_t val); + void tcg_out_reloc(TCGContext *s, uint8_t *code_ptr, int type, int label_index, long addend); const TCGArg *tcg_gen_code_op(TCGContext *s, int opc, const TCGArg *args1, unsigned int dead_iargs); -const TCGArg *dyngen_op(TCGContext *s, int opc, const TCGArg *opparam_ptr); - /* tcg-runtime.c */ int64_t tcg_helper_shl_i64(int64_t arg1, int64_t arg2); int64_t tcg_helper_shr_i64(int64_t arg1, int64_t arg2); @@ -413,7 +465,7 @@ uint64_t tcg_helper_divu_i64(uint64_t arg1, uint64_t arg2); uint64_t tcg_helper_remu_i64(uint64_t arg1, uint64_t arg2); extern uint8_t code_gen_prologue[]; -#if defined(__powerpc__) && !defined(__powerpc64__) +#if defined(_ARCH_PPC) && !defined(_ARCH_PPC64) #define tcg_qemu_tb_exec(tb_ptr) \ ((long REGPARM __attribute__ ((longcall)) (*)(void *))code_gen_prologue)(tb_ptr) #else |