* THE SOFTWARE.
*/
#include "qemu-common.h"
-#include "tcg-target.h"
-#include "tcg-runtime.h"
+
+/* Target word size (must be identical to pointer size). */
+#if UINTPTR_MAX == UINT32_MAX
+# define TCG_TARGET_REG_BITS 32
+#elif UINTPTR_MAX == UINT64_MAX
+# define TCG_TARGET_REG_BITS 64
+#else
+# error Unknown pointer size for tcg target
+#endif
#if TCG_TARGET_REG_BITS == 32
typedef int32_t tcg_target_long;
#error unsupported
#endif
+#include "tcg-target.h"
+#include "tcg-runtime.h"
+
#if TCG_TARGET_NB_REGS <= 32
typedef uint32_t TCGRegSet;
#elif TCG_TARGET_NB_REGS <= 64
#error unsupported
#endif
-enum {
-#define DEF(s, n, copy_size) INDEX_op_ ## s,
+/* Turn some undef macros into false macros. */
+#if TCG_TARGET_REG_BITS == 32
+#define TCG_TARGET_HAS_div_i64 0
+#define TCG_TARGET_HAS_div2_i64 0
+#define TCG_TARGET_HAS_rot_i64 0
+#define TCG_TARGET_HAS_ext8s_i64 0
+#define TCG_TARGET_HAS_ext16s_i64 0
+#define TCG_TARGET_HAS_ext32s_i64 0
+#define TCG_TARGET_HAS_ext8u_i64 0
+#define TCG_TARGET_HAS_ext16u_i64 0
+#define TCG_TARGET_HAS_ext32u_i64 0
+#define TCG_TARGET_HAS_bswap16_i64 0
+#define TCG_TARGET_HAS_bswap32_i64 0
+#define TCG_TARGET_HAS_bswap64_i64 0
+#define TCG_TARGET_HAS_neg_i64 0
+#define TCG_TARGET_HAS_not_i64 0
+#define TCG_TARGET_HAS_andc_i64 0
+#define TCG_TARGET_HAS_orc_i64 0
+#define TCG_TARGET_HAS_eqv_i64 0
+#define TCG_TARGET_HAS_nand_i64 0
+#define TCG_TARGET_HAS_nor_i64 0
+#define TCG_TARGET_HAS_deposit_i64 0
+#endif
+
+#ifndef TCG_TARGET_deposit_i32_valid
+#define TCG_TARGET_deposit_i32_valid(ofs, len) 1
+#endif
+#ifndef TCG_TARGET_deposit_i64_valid
+#define TCG_TARGET_deposit_i64_valid(ofs, len) 1
+#endif
+
+/* Only one of DIV or DIV2 should be defined. */
+#if defined(TCG_TARGET_HAS_div_i32)
+#define TCG_TARGET_HAS_div2_i32 0
+#elif defined(TCG_TARGET_HAS_div2_i32)
+#define TCG_TARGET_HAS_div_i32 0
+#endif
+#if defined(TCG_TARGET_HAS_div_i64)
+#define TCG_TARGET_HAS_div2_i64 0
+#elif defined(TCG_TARGET_HAS_div2_i64)
+#define TCG_TARGET_HAS_div_i64 0
+#endif
+
+typedef enum TCGOpcode {
+#define DEF(name, oargs, iargs, cargs, flags) INDEX_op_ ## name,
#include "tcg-opc.h"
#undef DEF
NB_OPS,
-};
+} TCGOpcode;
#define tcg_regset_clear(d) (d) = 0
#define tcg_regset_set(d, s) (d) = (s)
this value, they are statically allocated in the TB stack frame */
#define TCG_STATIC_CALL_ARGS_SIZE 128
-typedef int TCGType;
-
-#define TCG_TYPE_I32 0
-#define TCG_TYPE_I64 1
-#define TCG_TYPE_COUNT 2 /* number of different types */
+typedef enum TCGType {
+ TCG_TYPE_I32,
+ TCG_TYPE_I64,
+ TCG_TYPE_COUNT, /* number of different types */
+ /* An alias for the size of the host register. */
#if TCG_TARGET_REG_BITS == 32
-#define TCG_TYPE_PTR TCG_TYPE_I32
+ TCG_TYPE_REG = TCG_TYPE_I32,
#else
-#define TCG_TYPE_PTR TCG_TYPE_I64
+ TCG_TYPE_REG = TCG_TYPE_I64,
#endif
+ /* An alias for the size of the native pointer. We don't currently
+ support any hosts with 64-bit registers and 32-bit pointers. */
+ TCG_TYPE_PTR = TCG_TYPE_REG,
+
+ /* An alias for the size of the target "long", aka register. */
+#if TARGET_LONG_BITS == 64
+ TCG_TYPE_TL = TCG_TYPE_I64,
+#else
+ TCG_TYPE_TL = TCG_TYPE_I32,
+#endif
+} TCGType;
+
typedef tcg_target_ulong TCGArg;
-/* Define a type and accessor macros for varables. Using a struct is
+/* Define a type and accessor macros for variables. Using a struct is
nice because it gives some level of type safely. Ideally the compiler
be able to see through all this. However in practice this is not true,
- expecially on targets with braindamaged ABIs (e.g. i386).
+ especially 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.
- In additon we do typechecking for different types of variables. TCGv_i32
+ In addition 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.
*/
int i64;
} TCGv_i64;
+typedef struct {
+ int iptr;
+} TCGv_ptr;
+
#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 MAKE_TCGV_PTR(i) __extension__ \
+ ({ TCGv_ptr make_tcgv_tmp = {i}; make_tcgv_tmp; })
#define GET_TCGV_I32(t) ((t).i32)
#define GET_TCGV_I64(t) ((t).i64)
+#define GET_TCGV_PTR(t) ((t).iptr)
#if TCG_TARGET_REG_BITS == 32
#define TCGV_LOW(t) MAKE_TCGV_I32(GET_TCGV_I64(t))
#define TCGV_HIGH(t) MAKE_TCGV_I32(GET_TCGV_I64(t) + 1)
typedef int TCGv_i32;
typedef int TCGv_i64;
+#if TCG_TARGET_REG_BITS == 32
+#define TCGv_ptr TCGv_i32
+#else
+#define TCGv_ptr TCGv_i64
+#endif
#define MAKE_TCGV_I32(x) (x)
#define MAKE_TCGV_I64(x) (x)
+#define MAKE_TCGV_PTR(x) (x)
#define GET_TCGV_I32(t) (t)
#define GET_TCGV_I64(t) (t)
+#define GET_TCGV_PTR(t) (t)
#if TCG_TARGET_REG_BITS == 32
#define TCGV_LOW(t) (t)
#define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1)
/* call flags */
-#define TCG_CALL_TYPE_MASK 0x000f
-#define TCG_CALL_TYPE_STD 0x0000 /* standard C call */
-#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 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. */
unsigned int fixed_reg:1;
unsigned int mem_coherent:1;
unsigned int mem_allocated:1;
- unsigned int temp_local:1; /* If true, the temp is saved accross
+ unsigned int temp_local:1; /* If true, the temp is saved across
basic blocks. Otherwise, it is not
- preserved accross basic blocks. */
+ preserved across basic blocks. */
unsigned int temp_allocated:1; /* never used for code gen */
/* index of next free temp of same base type, -1 if end */
int next_free_temp;
struct TCGContext {
uint8_t *pool_cur, *pool_end;
- TCGPool *pool_first, *pool_current;
+ TCGPool *pool_first, *pool_current, *pool_first_large;
TCGLabel *labels;
int nb_labels;
TCGTemp *temps; /* globals first, temps after */
uint16_t *tb_jmp_offset; /* != NULL if USE_DIRECT_JUMP */
/* liveness analysis */
- uint16_t *op_dead_iargs; /* for each operation, each bit tells if the
- corresponding input argument is dead */
+ uint16_t *op_dead_args; /* for each operation, each bit tells if the
+ corresponding argument is dead */
/* tells in which temporary a given register is. It does not take
into account fixed registers */
int64_t restore_count;
int64_t restore_time;
#endif
+
+#ifdef CONFIG_DEBUG_TCG
+ int temps_in_use;
+#endif
};
extern TCGContext tcg_ctx;
}
void tcg_context_init(TCGContext *s);
+void tcg_prologue_init(TCGContext *s);
void tcg_func_start(TCGContext *s);
int tcg_gen_code(TCGContext *s, uint8_t *gen_code_buf);
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, ...));
+static inline bool tcg_arg_is_local(TCGContext *s, TCGArg arg)
+{
+ return s->temps[arg].temp_local;
+}
+
+#if defined(CONFIG_DEBUG_TCG)
+/* If you call tcg_clear_temp_count() at the start of a section of
+ * code which is not supposed to leak any TCG temporaries, then
+ * calling tcg_check_temp_count() at the end of the section will
+ * return 1 if the section did in fact leak a temporary.
+ */
+void tcg_clear_temp_count(void);
+int tcg_check_temp_count(void);
+#else
+#define tcg_clear_temp_count() do { } while (0)
+#define tcg_check_temp_count() 0
+#endif
+
+void tcg_dump_info(FILE *f, fprintf_function cpu_fprintf);
#define TCG_CT_ALIAS 0x80
#define TCG_CT_IALIAS 0x40
#define TCG_MAX_OP_ARGS 16
-#define TCG_OPF_BB_END 0x01 /* instruction defines the end of a basic
- block */
-#define TCG_OPF_CALL_CLOBBER 0x02 /* instruction clobbers call registers
- and potentially update globals. */
-#define TCG_OPF_SIDE_EFFECTS 0x04 /* instruction has side effects : it
- cannot be removed if its output
- are not used */
+/* Bits for TCGOpDef->flags, 8 bits available. */
+enum {
+ /* Instruction defines the end of a basic block. */
+ TCG_OPF_BB_END = 0x01,
+ /* Instruction clobbers call registers and potentially update globals. */
+ TCG_OPF_CALL_CLOBBER = 0x02,
+ /* Instruction has side effects: it cannot be removed
+ if its outputs are not used. */
+ TCG_OPF_SIDE_EFFECTS = 0x04,
+ /* Instruction operands are 64-bits (otherwise 32-bits). */
+ TCG_OPF_64BIT = 0x08,
+ /* Instruction is optional and not implemented by the host. */
+ TCG_OPF_NOT_PRESENT = 0x10,
+};
typedef struct TCGOpDef {
const char *name;
uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
uint8_t flags;
- uint16_t copy_size;
TCGArgConstraint *args_ct;
int *sorted_args;
+#if defined(CONFIG_DEBUG_TCG)
+ int used;
+#endif
} TCGOpDef;
-
+
+extern TCGOpDef tcg_op_defs[];
+extern const size_t tcg_op_defs_max;
+
typedef struct TCGTargetOpDef {
- int op;
+ TCGOpcode op;
const char *args_ct_str[TCG_MAX_OP_ARGS];
} TCGTargetOpDef;
-void tcg_target_init(TCGContext *s);
-void tcg_target_qemu_prologue(TCGContext *s);
-
#define tcg_abort() \
do {\
fprintf(stderr, "%s:%d: tcg fatal error\n", __FILE__, __LINE__);\
void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs);
#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
+#define TCGV_NAT_TO_PTR(n) MAKE_TCGV_PTR(GET_TCGV_I32(n))
+#define TCGV_PTR_TO_NAT(n) MAKE_TCGV_I32(GET_TCGV_PTR(n))
+
+#define tcg_const_ptr(V) TCGV_NAT_TO_PTR(tcg_const_i32((tcg_target_long)(V)))
+#define tcg_global_reg_new_ptr(R, N) \
+ TCGV_NAT_TO_PTR(tcg_global_reg_new_i32((R), (N)))
+#define tcg_global_mem_new_ptr(R, O, N) \
+ TCGV_NAT_TO_PTR(tcg_global_mem_new_i32((R), (O), (N)))
+#define tcg_temp_new_ptr() TCGV_NAT_TO_PTR(tcg_temp_new_i32())
+#define tcg_temp_free_ptr(T) tcg_temp_free_i32(TCGV_PTR_TO_NAT(T))
#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
+#define TCGV_NAT_TO_PTR(n) MAKE_TCGV_PTR(GET_TCGV_I64(n))
+#define TCGV_PTR_TO_NAT(n) MAKE_TCGV_I64(GET_TCGV_PTR(n))
+
+#define tcg_const_ptr(V) TCGV_NAT_TO_PTR(tcg_const_i64((tcg_target_long)(V)))
+#define tcg_global_reg_new_ptr(R, N) \
+ TCGV_NAT_TO_PTR(tcg_global_reg_new_i64((R), (N)))
+#define tcg_global_mem_new_ptr(R, O, N) \
+ TCGV_NAT_TO_PTR(tcg_global_mem_new_i64((R), (O), (N)))
+#define tcg_temp_new_ptr() TCGV_NAT_TO_PTR(tcg_temp_new_i64())
+#define tcg_temp_free_ptr(T) tcg_temp_free_i64(TCGV_PTR_TO_NAT(T))
#endif
void tcg_gen_callN(TCGContext *s, TCGv_ptr func, unsigned int flags,
void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1,
int c, int right, int arith);
+TCGArg *tcg_optimize(TCGContext *s, uint16_t *tcg_opc_ptr, TCGArg *args,
+ TCGOpDef *tcg_op_def);
+
/* only used for debugging purposes */
void tcg_register_helper(void *func, const char *name);
const char *tcg_helper_get_name(TCGContext *s, void *func);
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);
-
extern uint8_t code_gen_prologue[];
-#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
-#define tcg_qemu_tb_exec(tb_ptr) ((long REGPARM (*)(void *))code_gen_prologue)(tb_ptr)
+
+/* TCG targets may use a different definition of tcg_qemu_tb_exec. */
+#if !defined(tcg_qemu_tb_exec)
+# define tcg_qemu_tb_exec(env, tb_ptr) \
+ ((tcg_target_ulong (*)(void *, void *))code_gen_prologue)(env, tb_ptr)
#endif
+
+void tcg_register_jit(void *buf, size_t buf_size);
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