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authorpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2008-11-17 14:43:54 +0000
committerpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2008-11-17 14:43:54 +0000
commita7812ae412311d7d47f8aa85656faadac9d64b56 (patch)
treebae5e0d6fe19739e5e6d1cdc75d84312bf175257 /tcg/tcg.h
parent30913bae9a2cf92b5a87363ec1c7d0ad1f82cdcc (diff)
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TCG variable type checking.
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5729 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'tcg/tcg.h')
-rw-r--r--tcg/tcg.h128
1 files changed, 87 insertions, 41 deletions
diff --git a/tcg/tcg.h b/tcg/tcg.h
index 1471ca3..0581020 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -114,7 +114,11 @@ 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
@@ -123,28 +127,42 @@ typedef tcg_target_ulong TCGArg;
typedef struct
{
int n;
-} TCGv;
+} TCGv_i32;
-#define MAKE_TCGV(i) __extension__ \
- ({ TCGv make_tcgv_tmp = {i}; make_tcgv_tmp;})
-#define GET_TCGV(t) ((t).n)
+typedef struct
+{
+ int n;
+} 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).n)
+#define GET_TCGV_I64(t) ((t).n)
#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 */
/* 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
@@ -158,7 +176,7 @@ typedef int TCGv;
#define TCG_CALL_PURE 0x0010
/* 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 {
@@ -301,22 +319,39 @@ int dyngen_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_i64 tcg_global_reg2_new_hack(TCGType type, int reg1, int reg2,
+ const char *name);
+
+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_i32(1);
+}
+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, 0);
+ return tcg_temp_new_internal_i64(0);
}
-static inline TCGv tcg_temp_local_new(TCGType type)
+static inline TCGv_i64 tcg_temp_local_new_i64(void)
{
- return tcg_temp_new_internal(type, 1);
+ return tcg_temp_new_internal_i64(1);
}
-void tcg_temp_free(TCGv arg);
-char *tcg_get_arg_str(TCGContext *s, char *buf, int buf_size, TCGv arg);
+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, ...));
@@ -370,34 +405,45 @@ 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);
-TCGv tcg_const_local_i32(int32_t val);
-TCGv tcg_const_local_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,