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Code Issues 1 Releases Wiki Activity

Remove transfer as a compiler special. Eventually

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rely on function inlining for efficiency.
This commit is contained in:
bakpakin 2018-01-21 17:29:48 -05:00
parent 26c8145893
commit aa68ef49f1
3 changed files with 16 additions and 31 deletions
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29
src/compiler/compile_specials.c
View File

@ -301,34 +301,6 @@ DstSlot dstc_do(DstFopts opts, DstAst *ast, int32_t argn, const Dst *argv) {
return ret;
}
DstSlot dstc_transfer(DstFopts opts, DstAst *ast, int32_t argn, const Dst *argv) {
DstCompiler *c = opts.compiler;
DstFopts subopts = dstc_fopts_default(c);;
DstSlot dest, fib, val;
int32_t destindex, fibindex, valindex;
if (argn > 2) {
dstc_cerror(c, ast, "expected no more than 2 arguments");
return dstc_cslot(dst_wrap_nil());
}
dest = dstc_gettarget(opts);
fib = (argn > 0) ? dstc_value(subopts, argv[0]) : dstc_cslot(dst_wrap_nil());
val = (argn > 1) ? dstc_value(subopts, argv[1]) : dstc_cslot(dst_wrap_nil());
destindex = dstc_preread(c, ast, 0xFF, 1, dest);
fibindex = dstc_preread(c, ast, 0xFF, 2, fib);
valindex = dstc_preread(c, ast, 0xFF, 3, val);
dstc_emit(c, ast,
(valindex << 24) |
(fibindex << 16) |
(destindex << 8) |
DOP_TRANSFER);
dstc_postread(c, dest, destindex);
dstc_postread(c, fib, fibindex);
dstc_postread(c, val, valindex);
dstc_freeslot(c, fib);
dstc_freeslot(c, val);
return dest;
}
/*
* :whiletop
* ...
@ -528,7 +500,6 @@ static const DstSpecial dstc_specials[] = {
{"fn", dstc_fn},
{"if", dstc_if},
{"quote", dstc_quote},
{"transfer", dstc_transfer},
{"var", dstc_var},
{"varset!", dstc_varset},
{"while", dstc_while}

1
src/core/bytecode.c
View File

@ -251,6 +251,7 @@ DstFunction *dst_quick_asm(int32_t arity, int varargs, int32_t slots, const uint
def->flags = varargs ? DST_FUNCDEF_FLAG_VARARG : 0;
def->slotcount = slots;
def->bytecode = malloc(bytecode_size);
def->bytecode_length = bytecode_size / sizeof(uint32_t);
if (!def->bytecode) {
DST_OUT_OF_MEMORY;
}

17
src/core/stl.c
View File

@ -300,14 +300,27 @@ DstTable *dst_stl_env() {
DOP_TAILCALL
};
static uint32_t yield_asm[] = {
DOP_LOAD_NIL | (1 << 8),
DOP_TRANSFER | (1 << 16),
DOP_RETURN
};
static uint32_t transfer_asm[] = {
DOP_TRANSFER | (1 << 24),
DOP_RETURN
};
DstTable *env = dst_table(0);
Dst ret = dst_wrap_table(env);
/* Load main functions */
dst_env_cfuns(env, cfuns);
dst_env_def(env, "error", dst_wrap_function(dst_quick_asm(1, 0, 1, error_asm, sizeof(uint32_t))));
dst_env_def(env, "apply", dst_wrap_function(dst_quick_asm(2, 0, 2, apply_asm, 2 * sizeof(uint32_t))));
dst_env_def(env, "error", dst_wrap_function(dst_quick_asm(1, 0, 1, error_asm, sizeof(error_asm))));
dst_env_def(env, "apply", dst_wrap_function(dst_quick_asm(2, 0, 2, apply_asm, sizeof(apply_asm))));
dst_env_def(env, "yield", dst_wrap_function(dst_quick_asm(1, 0, 2, yield_asm, sizeof(yield_asm))));
dst_env_def(env, "transfer", dst_wrap_function(dst_quick_asm(2, 0, 2, transfer_asm, sizeof(transfer_asm))));
/* Allow references to the environment */
dst_env_def(env, "_env", ret);