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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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12
src/buildvm.c
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@@ -256,12 +256,12 @@ static void emit_bcdef(BuildCtx *ctx)
{
int i;
fprintf(ctx->fp, "/* This is a generated file. DO NOT EDIT! */\n\n");
fprintf(ctx->fp, "LJ_DATADEF const uint16_t lj_bc_ofs[BC__MAX+1] = {\n ");
fprintf(ctx->fp, "LJ_DATADEF const uint16_t lj_bc_ofs[] = {\n");
for (i = 0; i < ctx->npc; i++) {
fprintf(ctx->fp, " %4d,", ctx->sym_ofs[i]);
if ((i & 7) == 7) fprintf(ctx->fp, "\n ");
if (i != 0)
fprintf(ctx->fp, ",\n");
fprintf(ctx->fp, "%d", ctx->sym_ofs[i]);
}
fprintf(ctx->fp, " 0\n};\n\n");
}
/* Emit VM definitions as Lua code for debug modules. */
@@ -433,10 +433,12 @@ int main(int argc, char **argv)
break;
case BUILD_bcdef:
emit_bcdef(ctx);
emit_lib(ctx);
break;
case BUILD_vmdef:
emit_vmdef(ctx);
/* fallthrough */
emit_lib(ctx);
break;
case BUILD_ffdef:
case BUILD_libdef:
case BUILD_recdef: