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Major redesign of function call handling.

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Drop call gates. Use function headers, dispatched like bytecodes.
Emit BC_FUNCF/BC_FUNCV bytecode at PC 0 for all Lua functions.
C functions and ASM fast functions get extra bytecodes.
Modify internal calling convention: new base in BASE (formerly in RA).
Can now use better C function wrapper semantics (dynamic on/off).
Prerequisite for call hooks with zero-overhead if disabled.
Prerequisite for compiling recursive calls.
Prerequisite for efficient 32/64 bit prototype guards.
This commit is contained in:
Mike Pall
2010-02-13 04:51:56 +01:00
parent 4f8d7be8ea
commit c93138b59e
34 changed files with 4410 additions and 4264 deletions
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21
src/lj_bc.h
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@@ -178,7 +178,17 @@
_(ILOOP, rbase, ___, jump, ___) \
_(JLOOP, rbase, ___, lit, ___) \
\
_(JMP, rbase, ___, jump, ___)
_(JMP, rbase, ___, jump, ___) \
\
/* Function headers. I/J = interp/JIT, F/V/C = fixarg/vararg/C func. */ \
_(FUNCF, rbase, ___, ___, ___) \
_(IFUNCF, rbase, ___, ___, ___) \
_(JFUNCF, rbase, ___, lit, ___) \
_(FUNCV, rbase, ___, ___, ___) \
_(IFUNCV, rbase, ___, ___, ___) \
_(JFUNCV, rbase, ___, lit, ___) \
_(FUNCC, ___, ___, ___, ___) \
_(FUNCCW, ___, ___, ___, ___)
/* Bytecode opcode numbers. */
typedef enum {
@@ -206,6 +216,10 @@ LJ_STATIC_ASSERT((int)BC_ITERL + 1 == (int)BC_IITERL);
LJ_STATIC_ASSERT((int)BC_ITERL + 2 == (int)BC_JITERL);
LJ_STATIC_ASSERT((int)BC_LOOP + 1 == (int)BC_ILOOP);
LJ_STATIC_ASSERT((int)BC_LOOP + 2 == (int)BC_JLOOP);
LJ_STATIC_ASSERT((int)BC_FUNCF + 1 == (int)BC_IFUNCF);
LJ_STATIC_ASSERT((int)BC_FUNCF + 2 == (int)BC_JFUNCF);
LJ_STATIC_ASSERT((int)BC_FUNCV + 1 == (int)BC_IFUNCV);
LJ_STATIC_ASSERT((int)BC_FUNCV + 2 == (int)BC_JFUNCV);
/* Stack slots used by FORI/FORL, relative to operand A. */
enum {
@@ -229,8 +243,9 @@ typedef enum {
#define BCMODE(name, ma, mb, mc, mm) \
(BCM##ma|(BCM##mb<<3)|(BCM##mc<<7)|(MM_##mm<<11)),
#define BCMODE_FF 0
LJ_DATA const uint16_t lj_bc_mode[BC__MAX+1];
LJ_DATA const uint16_t lj_bc_ofs[BC__MAX+1];
LJ_DATA const uint16_t lj_bc_mode[];
LJ_DATA const uint16_t lj_bc_ofs[];
#endif