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Allow more than 256 child irep; fix #5310

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We have introduced following new instructions.

 * `OP_LAMBDA16`
 * `OP_BLOCK16`
 * `OP_METHOD16`
 * `OP_EXEC16`

Each instruction uses 16 bits operand for `reps` index. Since new
instructions are added, `mruby/c` VM should be updated.

Due to new instructions, dump format compatibility is lost, we have
increased `RITE_BINARY_MAJOR_VER`.

In addition, we have decreased the size of `refcnt` in `mrb_irep` from
`uint32_t` to `uint16_t`, which is reasonably big enough.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2021-02-01 16:07:48 +09:00
parent bd6b48fa3b
commit d759a73525
6 changed files with 42 additions and 12 deletions
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include/mruby/dump.h
+1 -1
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@@ -51,7 +51,7 @@ MRB_API mrb_irep *mrb_read_irep_buf(mrb_state*, const void*, size_t);
/* Binary Format Version Major:Minor */
/* Major: Incompatible to prior versions */
/* Minor: Upper-compatible to prior versions */
#define RITE_BINARY_MAJOR_VER "01"
#define RITE_BINARY_MAJOR_VER "02"
#define RITE_BINARY_MINOR_VER "00"
#define RITE_BINARY_FORMAT_VER RITE_BINARY_MAJOR_VER RITE_BINARY_MINOR_VER
#define RITE_COMPILER_NAME "MATZ"
include/mruby/irep.h
+2 -2
View File
@@ -75,8 +75,8 @@ typedef struct mrb_irep {
uint32_t ilen;
uint16_t plen, slen;
uint8_t rlen;
uint32_t refcnt;
uint16_t rlen;
uint16_t refcnt;
} mrb_irep;
#define MRB_ISEQ_NO_FREE 1
include/mruby/ops.h
+4
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@@ -100,14 +100,18 @@ OPCODE(HASH, BB) /* R(a) = hash_new(R(a),R(a+1)..R(a+b*2-1)) */
OPCODE(HASHADD, BB) /* R(a) = hash_push(R(a),R(a+1)..R(a+b*2)) */
OPCODE(HASHCAT, B) /* R(a) = hash_cat(R(a),R(a+1)) */
OPCODE(LAMBDA, BB) /* R(a) = lambda(SEQ[b],L_LAMBDA) */
OPCODE(LAMBDA16, BS) /* R(a) = lambda(SEQ[b],L_LAMBDA) */
OPCODE(BLOCK, BB) /* R(a) = lambda(SEQ[b],L_BLOCK) */
OPCODE(BLOCK16, BS) /* R(a) = lambda(SEQ[b],L_BLOCK) */
OPCODE(METHOD, BB) /* R(a) = lambda(SEQ[b],L_METHOD) */
OPCODE(METHOD16, BS) /* R(a) = lambda(SEQ[b],L_METHOD) */
OPCODE(RANGE_INC, B) /* R(a) = range_new(R(a),R(a+1),FALSE) */
OPCODE(RANGE_EXC, B) /* R(a) = range_new(R(a),R(a+1),TRUE) */
OPCODE(OCLASS, B) /* R(a) = ::Object */
OPCODE(CLASS, BB) /* R(a) = newclass(R(a),Syms(b),R(a+1)) */
OPCODE(MODULE, BB) /* R(a) = newmodule(R(a),Syms(b)) */
OPCODE(EXEC, BB) /* R(a) = blockexec(R(a),SEQ[b]) */
OPCODE(EXEC16, BS) /* R(a) = blockexec(R(a),SEQ[b]) */
OPCODE(DEF, BB) /* R(a).newmethod(Syms(b),R(a+1)) */
OPCODE(ALIAS, BB) /* alias_method(target_class,Syms(a),Syms(b)) */
OPCODE(UNDEF, B) /* undef_method(target_class,Syms(a)) */