DrSocalkwe3n/luajit
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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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8
src/lib_jit.c
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@@ -177,7 +177,7 @@ LJLIB_CF(jit_util_funcinfo)
GCtab *t;
lua_createtable(L, 0, 16); /* Increment hash size if fields are added. */
t = tabV(L->top-1);
setintfield(L, t, "linedefined", pt->linedefined);
setintfield(L, t, "linedefined", proto_line(pt, 0));
setintfield(L, t, "lastlinedefined", pt->lastlinedefined);
setintfield(L, t, "stackslots", pt->framesize);
setintfield(L, t, "params", pt->numparams);
@@ -185,9 +185,9 @@ LJLIB_CF(jit_util_funcinfo)
setintfield(L, t, "gcconsts", (int32_t)pt->sizekgc);
setintfield(L, t, "nconsts", (int32_t)pt->sizekn);
setintfield(L, t, "upvalues", (int32_t)pt->sizeuv);
if (pc-1 < pt->sizebc)
if (pc < pt->sizebc)
setintfield(L, t, "currentline",
proto_lineinfo(pt) ? proto_line(pt, pc-1) : 0);
proto_lineinfo(pt) ? proto_line(pt, pc) : 0);
lua_pushboolean(L, (pt->flags & PROTO_IS_VARARG));
lua_setfield(L, -2, "isvararg");
setstrV(L, L->top++, proto_chunkname(pt));
@@ -209,7 +209,7 @@ LJLIB_CF(jit_util_funcinfo)
LJLIB_CF(jit_util_funcbc)
{
GCproto *pt = check_Lproto(L, 0);
BCPos pc = (BCPos)lj_lib_checkint(L, 2) - 1;
BCPos pc = (BCPos)lj_lib_checkint(L, 2);
if (pc < pt->sizebc) {
BCIns ins = proto_bc(pt)[pc];
BCOp op = bc_op(ins);