1516 lines
44 KiB
Plaintext
1516 lines
44 KiB
Plaintext
// qbe_emit.cm — mcode IR → QBE IL compiler
|
|
// Takes mcode IR (from mcode.cm) and uses qbe.cm macros to produce
|
|
// a complete QBE IL program ready for the qbe compiler.
|
|
// qbe module is passed via env as 'qbe'
|
|
|
|
// ============================================================
|
|
// QBE IL helper function generation
|
|
// Generates helper functions that are defined once and called
|
|
// from each operation site, reducing code duplication.
|
|
// ============================================================
|
|
|
|
var emit_helpers = function(qbe) {
|
|
var h = []
|
|
|
|
// --- Slot access IL fragments ---
|
|
var sr = function(name, slot) {
|
|
return ` %${name}.o =l shl ${slot}, 3
|
|
%${name}.p =l add %fp, %${name}.o
|
|
%${name} =l loadl %${name}.p`
|
|
}
|
|
|
|
var sw = function(name, fp_var, slot, val) {
|
|
return ` %${name}.o =l shl ${slot}, 3
|
|
%${name}.p =l add ${fp_var}, %${name}.o
|
|
storel ${val}, %${name}.p`
|
|
}
|
|
|
|
// --- Allocating tail: refresh fp, write result, return fp ---
|
|
var alloc_tail = function(result_var) {
|
|
return ` %fp2 =l call $cell_rt_refresh_fp_checked(l %ctx)
|
|
jnz %fp2, @ok, @exc
|
|
@ok
|
|
${sw("w", "%fp2", "%dest", result_var)}
|
|
ret %fp2
|
|
@exc
|
|
ret 0`
|
|
}
|
|
|
|
// --- Allocating tail without dest write ---
|
|
var alloc_tail_nw = function() {
|
|
return ` %fp2 =l call $cell_rt_refresh_fp_checked(l %ctx)
|
|
jnz %fp2, @ok, @exc
|
|
@ok
|
|
ret %fp2
|
|
@exc
|
|
ret 0`
|
|
}
|
|
|
|
// ============================================================
|
|
// Category A: Pure QBE helpers (no C calls)
|
|
// ============================================================
|
|
|
|
// move
|
|
h[] = `export function $__move_ss(l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
${sw("w", "%fp", "%dest", "%a")}
|
|
ret
|
|
}`
|
|
|
|
// int comparisons
|
|
var int_ops = [
|
|
["eq_int", "ceqw"], ["ne_int", "cnew"], ["lt_int", "csltw"],
|
|
["le_int", "cslew"], ["gt_int", "csgtw"], ["ge_int", "csgew"]
|
|
]
|
|
var i = 0
|
|
while (i < length(int_ops)) {
|
|
h[] = `export function $__${int_ops[i][0]}_ss(l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%ia =l sar %a, 1
|
|
%ib =l sar %b, 1
|
|
%iaw =w copy %ia
|
|
%ibw =w copy %ib
|
|
%cr =w ${int_ops[i][1]} %iaw, %ibw
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
i = i + 1
|
|
}
|
|
|
|
// bool comparisons
|
|
h[] = `export function $__eq_bool_ss(l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%cr =w ceql %a, %b
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
h[] = `export function $__ne_bool_ss(l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%cr =w cnel %a, %b
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// is_identical (same as eq_bool)
|
|
h[] = `export function $__is_identical_ss(l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%cr =w ceql %a, %b
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// is_int: (val & 1) == 0
|
|
h[] = `export function $__is_int_ss(l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%t =l and %a, 1
|
|
%cr =w ceql %t, 0
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// is_null: (val & 31) == 7
|
|
h[] = `export function $__is_null_ss(l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%t =l and %a, 31
|
|
%cr =w ceql %t, 7
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// is_bool: (val & 31) == 3
|
|
h[] = `export function $__is_bool_ss(l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%t =l and %a, 31
|
|
%cr =w ceql %t, 3
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// is_num: (val & 1 == 0) || (val & 7 == 5)
|
|
h[] = `export function $__is_num_ss(l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%t1 =l and %a, 1
|
|
%ii =w ceql %t1, 0
|
|
%t2 =l and %a, 7
|
|
%fi =w ceql %t2, 5
|
|
%cr =w or %ii, %fi
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// ============================================================
|
|
// Category B: Non-allocating C call helpers
|
|
// ============================================================
|
|
|
|
// Type checks via C (no ctx needed except is_proxy)
|
|
var tc_ops = [
|
|
["is_text", "JS_IsText", false],
|
|
["is_array", "JS_IsArray", false],
|
|
["is_func", "JS_IsFunction", false],
|
|
["is_record", "JS_IsRecord", false],
|
|
["is_stone", "JS_IsStone", false],
|
|
["is_proxy", "cell_rt_is_proxy", true]
|
|
]
|
|
var tc_name = null
|
|
var tc_cfn = null
|
|
var tc_ctx = null
|
|
i = 0
|
|
while (i < length(tc_ops)) {
|
|
tc_name = tc_ops[i][0]
|
|
tc_cfn = tc_ops[i][1]
|
|
tc_ctx = tc_ops[i][2]
|
|
if (tc_ctx) {
|
|
h[] = `export function $__${tc_name}_ss(l %ctx, l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%cr =w call $${tc_cfn}(l %ctx, l %a)
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
} else {
|
|
h[] = `export function $__${tc_name}_ss(l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%cr =w call $${tc_cfn}(l %a)
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
}
|
|
i = i + 1
|
|
}
|
|
|
|
// Float comparisons: call qbe_float_cmp(ctx, op_id, a, b) → w, tag
|
|
var fc_ops = [
|
|
["eq_float", 0], ["ne_float", 1], ["lt_float", 2],
|
|
["le_float", 3], ["gt_float", 4], ["ge_float", 5]
|
|
]
|
|
i = 0
|
|
while (i < length(fc_ops)) {
|
|
h[] = `export function $__${fc_ops[i][0]}_ss(l %ctx, l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%cr =w call $qbe_float_cmp(l %ctx, w ${fc_ops[i][1]}, l %a, l %b)
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
i = i + 1
|
|
}
|
|
|
|
// Text comparisons: eq/ne via js_string_compare_value, others via cell_rt_*
|
|
var txcmp_sv = [
|
|
["eq_text", "ceqw", 1], ["ne_text", "cnew", 1]
|
|
]
|
|
i = 0
|
|
while (i < length(txcmp_sv)) {
|
|
h[] = `export function $__${txcmp_sv[i][0]}_ss(l %ctx, l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%scmp =w call $js_string_compare_value(l %ctx, l %a, l %b, w ${txcmp_sv[i][2]})
|
|
%cr =w ${txcmp_sv[i][1]} %scmp, 0
|
|
%crext =l extuw %cr
|
|
%sh =l shl %crext, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
i = i + 1
|
|
}
|
|
|
|
// lt/le/gt/ge_text via cell_rt_* (return tagged JSValue directly)
|
|
var txcmp_rt = ["lt_text", "gt_text", "le_text", "ge_text"]
|
|
i = 0
|
|
while (i < length(txcmp_rt)) {
|
|
h[] = `export function $__${txcmp_rt[i]}_ss(l %ctx, l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%r =l call $cell_rt_${txcmp_rt[i]}(l %ctx, l %a, l %b)
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
i = i + 1
|
|
}
|
|
|
|
// eq_tol, ne_tol (return tagged JSValue directly) — needs tolerance (3rd value)
|
|
var tol_ops = ["eq_tol", "ne_tol"]
|
|
i = 0
|
|
while (i < length(tol_ops)) {
|
|
h[] = `export function $__${tol_ops[i]}_ss(l %ctx, l %fp, l %dest, l %s1, l %s2, l %s3) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
${sr("c", "%s3")}
|
|
%r =l call $cell_rt_${tol_ops[i]}(l %ctx, l %a, l %b, l %c)
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
i = i + 1
|
|
}
|
|
|
|
// not: JS_ToBool + negate + tag
|
|
h[] = `export function $__not_ss(l %ctx, l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%bval =w call $JS_ToBool(l %ctx, l %a)
|
|
%neg =w ceqw %bval, 0
|
|
%nex =l extuw %neg
|
|
%sh =l shl %nex, 5
|
|
%r =l or %sh, 3
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// and, or (return tagged JSValue directly)
|
|
h[] = `export function $__and_ss(l %ctx, l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%r =l call $cell_rt_and(l %ctx, l %a, l %b)
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
h[] = `export function $__or_ss(l %ctx, l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%r =l call $cell_rt_or(l %ctx, l %a, l %b)
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// Bitwise unary: bnot
|
|
h[] = `export function $__bnot_ss(l %ctx, l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%r =l call $qbe_bnot(l %ctx, l %a)
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
|
|
// Bitwise binary ops
|
|
var bw_ops = [
|
|
["band", "qbe_bitwise_and"], ["bor", "qbe_bitwise_or"],
|
|
["bxor", "qbe_bitwise_xor"], ["bshl", "qbe_shift_shl"],
|
|
["bshr", "qbe_shift_sar"], ["bushr", "qbe_shift_shr"]
|
|
]
|
|
i = 0
|
|
while (i < length(bw_ops)) {
|
|
h[] = `export function $__${bw_ops[i][0]}_ss(l %ctx, l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%r =l call $${bw_ops[i][1]}(l %ctx, l %a, l %b)
|
|
${sw("w", "%fp", "%dest", "%r")}
|
|
ret
|
|
}`
|
|
i = i + 1
|
|
}
|
|
|
|
// ============================================================
|
|
// Category C: Allocating helpers (return fp or 0)
|
|
// ============================================================
|
|
|
|
// Allocating binary ops: read 2 slots, call C, refresh, write dest
|
|
var ab_ops = [
|
|
["add", "cell_rt_add"], ["sub", "qbe_float_sub"],
|
|
["mul", "qbe_float_mul"], ["div", "qbe_float_div"],
|
|
["mod", "qbe_float_mod"], ["pow", "qbe_float_pow"],
|
|
["concat", "JS_ConcatString"]
|
|
]
|
|
i = 0
|
|
while (i < length(ab_ops)) {
|
|
h[] = `export function l $__${ab_ops[i][0]}_ss(l %ctx, l %fp, l %dest, l %s1, l %s2) {
|
|
@entry
|
|
${sr("a", "%s1")}
|
|
${sr("b", "%s2")}
|
|
%r =l call $${ab_ops[i][1]}(l %ctx, l %a, l %b)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
i = i + 1
|
|
}
|
|
|
|
// Allocating unary: negate
|
|
h[] = `export function l $__neg_ss(l %ctx, l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%r =l call $qbe_float_neg(l %ctx, l %a)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// Property access: load_field(ctx, fp, dest, obj_slot, name_ptr)
|
|
h[] = `export function l $__load_field_ss(l %ctx, l %fp, l %dest, l %obj_slot, l %name) {
|
|
@entry
|
|
${sr("a", "%obj_slot")}
|
|
%r =l call $cell_rt_load_field(l %ctx, l %a, l %name)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// load_dynamic(ctx, fp, dest, obj_slot, key_slot)
|
|
h[] = `export function l $__load_dynamic_ss(l %ctx, l %fp, l %dest, l %obj_slot, l %key_slot) {
|
|
@entry
|
|
${sr("a", "%obj_slot")}
|
|
${sr("b", "%key_slot")}
|
|
%r =l call $cell_rt_load_dynamic(l %ctx, l %a, l %b)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// load_index(ctx, fp, dest, arr_slot, idx_slot)
|
|
h[] = `export function l $__load_index_ss(l %ctx, l %fp, l %dest, l %arr_slot, l %idx_slot) {
|
|
@entry
|
|
${sr("a", "%arr_slot")}
|
|
${sr("b", "%idx_slot")}
|
|
%r =l call $cell_rt_load_index(l %ctx, l %a, l %b)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// store_field(ctx, fp, obj_slot, val_slot, name_ptr) — no dest write
|
|
h[] = `export function l $__store_field_ss(l %ctx, l %fp, l %obj_slot, l %val_slot, l %name) {
|
|
@entry
|
|
${sr("a", "%obj_slot")}
|
|
${sr("b", "%val_slot")}
|
|
call $cell_rt_store_field(l %ctx, l %b, l %a, l %name)
|
|
${alloc_tail_nw()}
|
|
}`
|
|
|
|
// store_dynamic(ctx, fp, obj_slot, val_slot, key_slot) — no dest write
|
|
h[] = `export function l $__store_dynamic_ss(l %ctx, l %fp, l %obj_slot, l %val_slot, l %key_slot) {
|
|
@entry
|
|
${sr("a", "%obj_slot")}
|
|
${sr("b", "%val_slot")}
|
|
${sr("c", "%key_slot")}
|
|
call $cell_rt_store_dynamic(l %ctx, l %b, l %a, l %c)
|
|
${alloc_tail_nw()}
|
|
}`
|
|
|
|
// store_index(ctx, fp, obj_slot, val_slot, idx_slot) — no dest write
|
|
h[] = `export function l $__store_index_ss(l %ctx, l %fp, l %obj_slot, l %val_slot, l %idx_slot) {
|
|
@entry
|
|
${sr("a", "%obj_slot")}
|
|
${sr("b", "%val_slot")}
|
|
${sr("c", "%idx_slot")}
|
|
call $cell_rt_store_index(l %ctx, l %b, l %a, l %c)
|
|
${alloc_tail_nw()}
|
|
}`
|
|
|
|
// frame(ctx, fp, dest, fn_slot, nargs)
|
|
h[] = `export function l $__frame_ss(l %ctx, l %fp, l %dest, l %fn_slot, l %nargs) {
|
|
@entry
|
|
${sr("a", "%fn_slot")}
|
|
%r =l call $cell_rt_frame(l %ctx, l %a, l %nargs)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// goframe(ctx, fp, dest, fn_slot, nargs)
|
|
h[] = `export function l $__goframe_ss(l %ctx, l %fp, l %dest, l %fn_slot, l %nargs) {
|
|
@entry
|
|
${sr("a", "%fn_slot")}
|
|
%r =l call $cell_rt_goframe(l %ctx, l %a, l %nargs)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// invoke(ctx, fp, frame_slot, result_slot) — two checks: exc + refresh
|
|
h[] = `export function l $__invoke_ss(l %ctx, l %fp, l %frame_slot, l %result_slot) {
|
|
@entry
|
|
${sr("a", "%frame_slot")}
|
|
%r =l call $cell_rt_invoke(l %ctx, l %a)
|
|
%is_exc =w ceql %r, 15
|
|
jnz %is_exc, @exc, @ok1
|
|
@ok1
|
|
%fp2 =l call $cell_rt_refresh_fp_checked(l %ctx)
|
|
jnz %fp2, @ok2, @exc
|
|
@ok2
|
|
${sw("w", "%fp2", "%result_slot", "%r")}
|
|
ret %fp2
|
|
@exc
|
|
ret 0
|
|
}`
|
|
|
|
// function(ctx, fp, dest, fn_idx, arity, nr_slots)
|
|
h[] = `export function l $__function_ss(l %ctx, l %fp, l %dest, l %fn_idx, l %arity, l %nr_slots) {
|
|
@entry
|
|
%r =l call $cell_rt_make_function(l %ctx, l %fn_idx, l %fp, l %arity, l %nr_slots)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// new_record(ctx, fp, dest)
|
|
h[] = `export function l $__new_record_ss(l %ctx, l %fp, l %dest) {
|
|
@entry
|
|
%r =l call $JS_NewObject(l %ctx)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// new_array(ctx, fp, dest)
|
|
h[] = `export function l $__new_array_ss(l %ctx, l %fp, l %dest) {
|
|
@entry
|
|
%r =l call $JS_NewArray(l %ctx)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// new_string(ctx, fp, dest, str_ptr)
|
|
h[] = `export function l $__new_string_ss(l %ctx, l %fp, l %dest, l %str_ptr) {
|
|
@entry
|
|
%r =l call $qbe_new_string(l %ctx, l %str_ptr)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// new_float64(ctx, fp, dest, val) — val is a double
|
|
h[] = `export function l $__new_float64_ss(l %ctx, l %fp, l %dest, d %val) {
|
|
@entry
|
|
%r =l call $qbe_new_float64(l %ctx, d %val)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// get_intrinsic(ctx, fp, dest, name_ptr)
|
|
h[] = `export function l $__get_intrinsic_ss(l %ctx, l %fp, l %dest, l %name_ptr) {
|
|
@entry
|
|
%r =l call $cell_rt_get_intrinsic(l %ctx, l %name_ptr)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// push(ctx, fp, arr_slot, val_slot) — write back arr in case GC moved it
|
|
h[] = `export function l $__push_ss(l %ctx, l %fp, l %arr_slot, l %val_slot) {
|
|
@entry
|
|
${sr("a", "%arr_slot")}
|
|
${sr("b", "%val_slot")}
|
|
%r =l call $cell_rt_push(l %ctx, l %a, l %b)
|
|
%fp2 =l call $cell_rt_refresh_fp_checked(l %ctx)
|
|
jnz %fp2, @ok, @exc
|
|
@ok
|
|
${sw("w", "%fp2", "%arr_slot", "%r")}
|
|
ret %fp2
|
|
@exc
|
|
ret 0
|
|
}`
|
|
|
|
// pop(ctx, fp, dest, arr_slot)
|
|
h[] = `export function l $__pop_ss(l %ctx, l %fp, l %dest, l %arr_slot) {
|
|
@entry
|
|
${sr("a", "%arr_slot")}
|
|
%r =l call $cell_rt_pop(l %ctx, l %a)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// length(ctx, fp, dest, src)
|
|
h[] = `export function l $__length_ss(l %ctx, l %fp, l %dest, l %src) {
|
|
@entry
|
|
${sr("a", "%src")}
|
|
%r =l call $JS_CellLength(l %ctx, l %a)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// delete_field(ctx, fp, dest, obj_slot, name_ptr)
|
|
h[] = `export function l $__delete_field_ss(l %ctx, l %fp, l %dest, l %obj_slot, l %name) {
|
|
@entry
|
|
${sr("a", "%obj_slot")}
|
|
%r =l call $cell_rt_delete_str(l %ctx, l %a, l %name)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// delete_dynamic(ctx, fp, dest, obj_slot, key_slot)
|
|
h[] = `export function l $__delete_dynamic_ss(l %ctx, l %fp, l %dest, l %obj_slot, l %key_slot) {
|
|
@entry
|
|
${sr("a", "%obj_slot")}
|
|
${sr("b", "%key_slot")}
|
|
%r =l call $cell_rt_delete(l %ctx, l %a, l %b)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// in(ctx, fp, dest, key_slot, obj_slot)
|
|
h[] = `export function l $__in_ss(l %ctx, l %fp, l %dest, l %key_slot, l %obj_slot) {
|
|
@entry
|
|
${sr("a", "%key_slot")}
|
|
${sr("b", "%obj_slot")}
|
|
%r =l call $cell_rt_in(l %ctx, l %a, l %b)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
// regexp(ctx, fp, dest, pat_ptr, flg_ptr)
|
|
h[] = `export function l $__regexp_ss(l %ctx, l %fp, l %dest, l %pat, l %flg) {
|
|
@entry
|
|
%r =l call $cell_rt_regexp(l %ctx, l %pat, l %flg)
|
|
${alloc_tail("%r")}
|
|
}`
|
|
|
|
return h
|
|
}
|
|
|
|
var qbe_emit = function(ir, qbe, export_name) {
|
|
var out = []
|
|
var data_out = []
|
|
var str_table = {}
|
|
var str_id = 0
|
|
var uid = 0
|
|
|
|
// ============================================================
|
|
// Output helpers
|
|
// ============================================================
|
|
|
|
var emit = function(s) {
|
|
push(out, s)
|
|
}
|
|
|
|
var fresh = function() {
|
|
uid = uid + 1
|
|
return "u" + text(uid)
|
|
}
|
|
|
|
var sanitize = function(lbl) {
|
|
var r = replace(lbl, ".", "_")
|
|
r = replace(r, "-", "_")
|
|
r = replace(r, " ", "_")
|
|
r = replace(r, "/", "_")
|
|
r = replace(r, "<", "")
|
|
r = replace(r, ">", "")
|
|
r = replace(r, "(", "")
|
|
r = replace(r, ")", "")
|
|
return r
|
|
}
|
|
|
|
// ============================================================
|
|
// String interning — emit data section entries
|
|
// ============================================================
|
|
|
|
var intern_str = function(val) {
|
|
if (str_table[val] != null) return str_table[val]
|
|
var label = "$d_str_" + text(str_id)
|
|
str_id = str_id + 1
|
|
var escaped = replace(val, "\\", "\\\\")
|
|
escaped = replace(escaped, "\"", "\\\"")
|
|
escaped = replace(escaped, "\n", "\\n")
|
|
escaped = replace(escaped, "\r", "\\r")
|
|
escaped = replace(escaped, "\t", "\\t")
|
|
var line = "data " + label + ' = ' + '{ b "' + escaped + '", b 0 }'
|
|
push(data_out, line)
|
|
str_table[val] = label
|
|
return label
|
|
}
|
|
|
|
// ============================================================
|
|
// Extract property name from mcode operand
|
|
// ============================================================
|
|
|
|
// prop_name inlined at each call site — closures have bytecode bugs with
|
|
// early returns so we extract the property name inline via pn variable
|
|
|
|
// ============================================================
|
|
// Compile one function's instructions
|
|
// ============================================================
|
|
|
|
var compile_fn = function(fn, fn_idx, is_main) {
|
|
var instrs = fn.instructions
|
|
var nr_slots = fn.nr_slots
|
|
var nr_args = fn.nr_args
|
|
var disruption_pc = fn.disruption_pc != null ? fn.disruption_pc : 0
|
|
var has_handler = disruption_pc > 0
|
|
var name = is_main ? (export_name ? export_name : "cell_main") : "cell_fn_" + text(fn_idx)
|
|
name = sanitize(name)
|
|
var i = 0
|
|
var instr = null
|
|
var op = null
|
|
var a1 = null
|
|
var a2 = null
|
|
var a3 = null
|
|
var a4 = null
|
|
var p = null
|
|
var pn = null
|
|
var sl = null
|
|
var lbl = null
|
|
var fop_id = 0
|
|
var nr_elems = 0
|
|
var ei = 0
|
|
var elem_slot = 0
|
|
var v = null
|
|
var lhs = null
|
|
var rhs = null
|
|
var obj = null
|
|
var chk = null
|
|
var pat_label = null
|
|
var flg_label = null
|
|
var in_handler = false
|
|
var tol = null
|
|
var fn_arity = 0
|
|
var arity_tmp = null
|
|
var fn_nr_slots = 0
|
|
var invoke_count = 0
|
|
var si = 0
|
|
var scan = null
|
|
var scan_op = null
|
|
var has_invokes = false
|
|
var seg_counter = 0
|
|
var ri = 0
|
|
var seg_num = 0
|
|
var resume_val = 0
|
|
|
|
// Pre-scan: count invoke/tail_invoke points to assign segment numbers.
|
|
// Must skip dead code (instructions after terminators) the same way
|
|
// the main emission loop does, otherwise we create jump table entries
|
|
// for segments that never get emitted.
|
|
var scan_dead = false
|
|
si = 0
|
|
while (si < length(instrs)) {
|
|
scan = instrs[si]
|
|
si = si + 1
|
|
if (is_text(scan)) {
|
|
// Labels reset dead code state (unless they're nop pseudo-labels)
|
|
if (!starts_with(scan, "_nop_ur_") && !starts_with(scan, "_nop_tc_"))
|
|
scan_dead = false
|
|
continue
|
|
}
|
|
if (scan_dead) continue
|
|
if (!is_array(scan)) continue
|
|
scan_op = scan[0]
|
|
if (scan_op == "invoke" || scan_op == "tail_invoke") {
|
|
invoke_count = invoke_count + 1
|
|
}
|
|
// Track terminators — same set as in the main loop
|
|
if (scan_op == "return" || scan_op == "jump" || scan_op == "goinvoke" || scan_op == "disrupt") {
|
|
scan_dead = true
|
|
}
|
|
}
|
|
has_invokes = invoke_count > 0
|
|
|
|
// Function signature: (ctx, frame_ptr) → JSValue
|
|
emit(`export function l $${name}(l %ctx, l %fp) {`)
|
|
emit("@entry")
|
|
|
|
// Resume dispatch: if this function has invoke points, read the segment
|
|
// number from frame->address and jump to the right resume point.
|
|
// frame->address is at fp - 8 (last field before slots[]).
|
|
if (has_invokes) {
|
|
emit(" %addr_ptr =l sub %fp, 8")
|
|
emit(" %addr_raw =l loadl %addr_ptr")
|
|
// address is stored as JS_NewInt32 tagged value: n << 1
|
|
emit(" %addr =l sar %addr_raw, 1")
|
|
emit(" %resume =l shr %addr, 16")
|
|
emit(` jnz %resume, @_rcheck1, @_seg0`)
|
|
ri = 1
|
|
while (ri <= invoke_count) {
|
|
emit(`@_rcheck${text(ri)}`)
|
|
emit(` %_rc${text(ri)} =w ceql %resume, ${text(ri)}`)
|
|
if (ri < invoke_count) {
|
|
emit(` jnz %_rc${text(ri)}, @_seg${text(ri)}, @_rcheck${text(ri + 1)}`)
|
|
} else {
|
|
// Last check — if no match, fall through to seg0
|
|
emit(` jnz %_rc${text(ri)}, @_seg${text(ri)}, @_seg0`)
|
|
}
|
|
ri = ri + 1
|
|
}
|
|
emit("@_seg0")
|
|
}
|
|
|
|
// GC-safe slot access: every read/write goes through frame memory.
|
|
// %fp may become stale after GC-triggering calls — use refresh_fp().
|
|
var s_read = function(slot) {
|
|
var t = fresh()
|
|
emit(` %${t} =l add %fp, ${text(slot * 8)}`)
|
|
emit(` %${t}v =l loadl %${t}`)
|
|
return `%${t}v`
|
|
}
|
|
|
|
var s_write = function(slot, val) {
|
|
var t = fresh()
|
|
var sv = val
|
|
if (!starts_with(val, "%")) {
|
|
sv = `%${t}c`
|
|
emit(` ${sv} =l copy ${val}`)
|
|
}
|
|
emit(` %${t} =l add %fp, ${text(slot * 8)}`)
|
|
emit(` storel ${sv}, %${t}`)
|
|
}
|
|
|
|
var needs_exc_ret = false
|
|
|
|
var refresh_fp = function() {
|
|
emit(` %fp =l call $cell_rt_refresh_fp_checked(l %ctx)`)
|
|
var exc = fresh()
|
|
emit(` %${exc} =w ceql %fp, 0`)
|
|
if (has_handler && !in_handler) {
|
|
emit(` jnz %${exc}, @disruption_handler, @${exc}_ok`)
|
|
} else {
|
|
needs_exc_ret = true
|
|
emit(` jnz %${exc}, @_exc_ret, @${exc}_ok`)
|
|
}
|
|
emit(`@${exc}_ok`)
|
|
}
|
|
|
|
// Exception check after allocating helper call (helper returns fp or 0)
|
|
var emit_exc_check = function() {
|
|
var lbl = fresh()
|
|
if (has_handler && !in_handler) {
|
|
emit(` jnz %fp, @${lbl}_ok, @disruption_handler`)
|
|
} else {
|
|
needs_exc_ret = true
|
|
emit(` jnz %fp, @${lbl}_ok, @_exc_ret`)
|
|
}
|
|
emit(`@${lbl}_ok`)
|
|
}
|
|
|
|
// Walk instructions
|
|
var last_was_term = false
|
|
i = 0
|
|
while (i < length(instrs)) {
|
|
instr = instrs[i]
|
|
|
|
// Emit @disruption_handler at the right flat index
|
|
// disruption_pc counts all entries (labels + instructions)
|
|
if (has_handler && i == disruption_pc) {
|
|
if (!last_was_term) {
|
|
emit(" jmp @disruption_handler")
|
|
}
|
|
emit("@disruption_handler")
|
|
emit(" call $cell_rt_clear_exception(l %ctx)")
|
|
emit(` %fp =l call $cell_rt_refresh_fp(l %ctx)`)
|
|
last_was_term = false
|
|
in_handler = true
|
|
}
|
|
i = i + 1
|
|
|
|
// Labels are plain strings; skip nop pseudo-labels from streamline
|
|
if (is_text(instr)) {
|
|
if (starts_with(instr, "_nop_ur_") || starts_with(instr, "_nop_tc_")) continue
|
|
lbl = sanitize(instr)
|
|
if (!last_was_term) {
|
|
emit(` jmp @${lbl}`)
|
|
}
|
|
emit("@" + lbl)
|
|
last_was_term = false
|
|
continue
|
|
}
|
|
|
|
// Skip dead code: non-label instructions after a terminator are unreachable
|
|
if (last_was_term) continue
|
|
|
|
op = instr[0]
|
|
a1 = instr[1]
|
|
a2 = instr[2]
|
|
a3 = instr[3]
|
|
last_was_term = false
|
|
|
|
// --- Constants ---
|
|
|
|
if (op == "int") {
|
|
s_write(a1, text(a2 * 2))
|
|
continue
|
|
}
|
|
if (op == "null") {
|
|
s_write(a1, text(qbe.js_null))
|
|
continue
|
|
}
|
|
if (op == "true") {
|
|
s_write(a1, text(qbe.js_true))
|
|
continue
|
|
}
|
|
if (op == "false") {
|
|
s_write(a1, text(qbe.js_false))
|
|
continue
|
|
}
|
|
if (op == "access") {
|
|
if (is_number(a2)) {
|
|
if (is_integer(a2)) {
|
|
s_write(a1, text(a2 * 2))
|
|
} else {
|
|
emit(` %fp =l call $__new_float64_ss(l %ctx, l %fp, l ${text(a1)}, d d_${text(a2)})`)
|
|
emit_exc_check()
|
|
}
|
|
} else if (is_text(a2)) {
|
|
sl = intern_str(a2)
|
|
emit(` %fp =l call $__new_string_ss(l %ctx, l %fp, l ${text(a1)}, l ${sl})`)
|
|
emit_exc_check()
|
|
} else if (is_object(a2)) {
|
|
if (a2.make == "intrinsic") {
|
|
sl = intern_str(a2.name)
|
|
emit(` %fp =l call $__get_intrinsic_ss(l %ctx, l %fp, l ${text(a1)}, l ${sl})`)
|
|
emit_exc_check()
|
|
} else if (a2.kind == "number") {
|
|
if (a2.number != null && is_integer(a2.number)) {
|
|
s_write(a1, text(a2.number * 2))
|
|
} else if (a2.number != null) {
|
|
emit(` %fp =l call $__new_float64_ss(l %ctx, l %fp, l ${text(a1)}, d d_${text(a2.number)})`)
|
|
emit_exc_check()
|
|
} else {
|
|
s_write(a1, text(qbe.js_null))
|
|
}
|
|
} else if (a2.kind == "text") {
|
|
sl = intern_str(a2.value)
|
|
emit(` %fp =l call $__new_string_ss(l %ctx, l %fp, l ${text(a1)}, l ${sl})`)
|
|
emit_exc_check()
|
|
} else if (a2.kind == "true") {
|
|
s_write(a1, text(qbe.js_true))
|
|
} else if (a2.kind == "false") {
|
|
s_write(a1, text(qbe.js_false))
|
|
} else if (a2.kind == "null") {
|
|
s_write(a1, text(qbe.js_null))
|
|
} else {
|
|
s_write(a1, text(qbe.js_null))
|
|
}
|
|
} else {
|
|
s_write(a1, text(qbe.js_null))
|
|
}
|
|
continue
|
|
}
|
|
|
|
// --- Movement ---
|
|
|
|
if (op == "move") {
|
|
emit(` call $__move_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
|
|
// --- Generic arithmetic (VM dispatches int/float) ---
|
|
|
|
if (op == "add") {
|
|
emit(` %fp =l call $__add_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "subtract") {
|
|
emit(` %fp =l call $__sub_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "multiply") {
|
|
emit(` %fp =l call $__mul_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "divide") {
|
|
emit(` %fp =l call $__div_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "modulo") {
|
|
emit(` %fp =l call $__mod_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "negate") {
|
|
emit(` %fp =l call $__neg_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
if (op == "pow") {
|
|
emit(` %fp =l call $__pow_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- String concat ---
|
|
|
|
if (op == "concat") {
|
|
emit(` %fp =l call $__concat_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- Type checks — use qbe.cm macros (no GC, no refresh) ---
|
|
|
|
if (op == "is_int") {
|
|
emit(` call $__is_int_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_text") {
|
|
emit(` call $__is_text_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_num") {
|
|
emit(` call $__is_num_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_bool") {
|
|
emit(` call $__is_bool_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_null") {
|
|
emit(` call $__is_null_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_identical") {
|
|
emit(` call $__is_identical_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "is_array") {
|
|
emit(` call $__is_array_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_func") {
|
|
emit(` call $__is_func_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_record") {
|
|
emit(` call $__is_record_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_stone") {
|
|
emit(` call $__is_stone_ss(l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "is_proxy") {
|
|
emit(` call $__is_proxy_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
|
|
// --- Comparisons (int path, no GC) ---
|
|
|
|
if (op == "eq_int") {
|
|
emit(` call $__eq_int_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "ne_int") {
|
|
emit(` call $__ne_int_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "lt_int") {
|
|
emit(` call $__lt_int_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "gt_int") {
|
|
emit(` call $__gt_int_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "le_int") {
|
|
emit(` call $__le_int_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "ge_int") {
|
|
emit(` call $__ge_int_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
|
|
// --- Comparisons (float/text/bool) ---
|
|
|
|
if (op == "eq_float") {
|
|
emit(` call $__eq_float_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "ne_float") {
|
|
emit(` call $__ne_float_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "lt_float") {
|
|
emit(` call $__lt_float_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "le_float") {
|
|
emit(` call $__le_float_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "gt_float") {
|
|
emit(` call $__gt_float_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "ge_float") {
|
|
emit(` call $__ge_float_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "eq_text") {
|
|
emit(` call $__eq_text_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "ne_text") {
|
|
emit(` call $__ne_text_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "lt_text" || op == "gt_text" || op == "le_text" || op == "ge_text") {
|
|
emit(` call $__${op}_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "eq_bool") {
|
|
emit(` call $__eq_bool_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "ne_bool") {
|
|
emit(` call $__ne_bool_ss(l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "eq_tol" || op == "ne_tol") {
|
|
a4 = instr[4]
|
|
emit(` call $__${op}_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)}, l ${text(a4)})`)
|
|
continue
|
|
}
|
|
|
|
// --- Boolean ops ---
|
|
|
|
if (op == "not") {
|
|
emit(` call $__not_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "and") {
|
|
emit(` call $__and_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "or") {
|
|
emit(` call $__or_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
|
|
// --- Bitwise ops — use qbe.cm macros (no GC) ---
|
|
|
|
if (op == "bitnot") {
|
|
emit(` call $__bnot_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
if (op == "bitand") {
|
|
emit(` call $__band_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "bitor") {
|
|
emit(` call $__bor_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "bitxor") {
|
|
emit(` call $__bxor_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "shl") {
|
|
emit(` call $__bshl_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "shr") {
|
|
emit(` call $__bshr_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
if (op == "ushr") {
|
|
emit(` call $__bushr_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
continue
|
|
}
|
|
|
|
// --- Property access — runtime calls [G] ---
|
|
|
|
if (op == "load_field") {
|
|
pn = null
|
|
if (is_text(a3)) {
|
|
pn = a3
|
|
} else if (is_object(a3)) {
|
|
if (a3.name != null) {
|
|
pn = a3.name
|
|
} else if (a3.value != null) {
|
|
pn = a3.value
|
|
}
|
|
}
|
|
if (pn != null) {
|
|
sl = intern_str(pn)
|
|
emit(` %fp =l call $__load_field_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${sl})`)
|
|
} else {
|
|
emit(` %fp =l call $__load_dynamic_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
}
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "load_index") {
|
|
emit(` %fp =l call $__load_index_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "load_dynamic") {
|
|
pn = null
|
|
if (is_text(a3)) {
|
|
pn = a3
|
|
} else if (is_object(a3)) {
|
|
if (a3.name != null) {
|
|
pn = a3.name
|
|
} else if (a3.value != null) {
|
|
pn = a3.value
|
|
}
|
|
}
|
|
if (pn != null) {
|
|
sl = intern_str(pn)
|
|
emit(` %fp =l call $__load_field_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${sl})`)
|
|
} else {
|
|
emit(` %fp =l call $__load_dynamic_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
}
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "store_field") {
|
|
// IR: ["store_field", obj, val, prop]
|
|
pn = null
|
|
if (is_text(a3)) {
|
|
pn = a3
|
|
} else if (is_object(a3)) {
|
|
if (a3.name != null) {
|
|
pn = a3.name
|
|
} else if (a3.value != null) {
|
|
pn = a3.value
|
|
}
|
|
}
|
|
if (pn != null) {
|
|
sl = intern_str(pn)
|
|
emit(` %fp =l call $__store_field_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${sl})`)
|
|
} else {
|
|
emit(` %fp =l call $__store_dynamic_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
}
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "store_index") {
|
|
// IR: ["store_index", obj, val, idx]
|
|
emit(` %fp =l call $__store_index_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "store_dynamic") {
|
|
// IR: ["store_dynamic", obj, val, key]
|
|
pn = null
|
|
if (is_text(a3)) {
|
|
pn = a3
|
|
} else if (is_object(a3)) {
|
|
if (a3.name != null) {
|
|
pn = a3.name
|
|
} else if (a3.value != null) {
|
|
pn = a3.value
|
|
}
|
|
}
|
|
if (pn != null) {
|
|
sl = intern_str(pn)
|
|
emit(` %fp =l call $__store_field_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${sl})`)
|
|
} else {
|
|
emit(` %fp =l call $__store_dynamic_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
}
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- Closure access (no GC) ---
|
|
|
|
if (op == "get") {
|
|
// mcode: get(dest, slot, depth) — a2=slot, a3=depth
|
|
p = fresh()
|
|
emit(` %${p} =l call $cell_rt_get_closure(l %ctx, l %fp, l ${text(a3)}, l ${text(a2)})`)
|
|
s_write(a1, `%${p}`)
|
|
continue
|
|
}
|
|
if (op == "put") {
|
|
// mcode: put(val, slot, depth) — a2=slot, a3=depth
|
|
v = s_read(a1)
|
|
emit(` call $cell_rt_put_closure(l %ctx, l %fp, l ${v}, l ${text(a3)}, l ${text(a2)})`)
|
|
continue
|
|
}
|
|
|
|
// --- Control flow ---
|
|
|
|
if (op == "jump") {
|
|
emit(` jmp @${sanitize(a1)}`)
|
|
last_was_term = true
|
|
continue
|
|
}
|
|
if (op == "jump_true") {
|
|
v = s_read(a1)
|
|
p = fresh()
|
|
emit(` %${p} =w call $JS_ToBool(l %ctx, l ${v})`)
|
|
emit(` jnz %${p}, @${sanitize(a2)}, @${p}_f`)
|
|
emit(`@${p}_f`)
|
|
continue
|
|
}
|
|
if (op == "jump_false") {
|
|
v = s_read(a1)
|
|
p = fresh()
|
|
emit(` %${p} =w call $JS_ToBool(l %ctx, l ${v})`)
|
|
emit(` jnz %${p}, @${p}_t, @${sanitize(a2)}`)
|
|
emit(`@${p}_t`)
|
|
continue
|
|
}
|
|
if (op == "jump_null") {
|
|
v = s_read(a1)
|
|
p = fresh()
|
|
emit(` %${p} =w ceql ${v}, ${text(qbe.js_null)}`)
|
|
emit(` jnz %${p}, @${sanitize(a2)}, @${p}_nn`)
|
|
emit(`@${p}_nn`)
|
|
continue
|
|
}
|
|
if (op == "jump_not_null") {
|
|
v = s_read(a1)
|
|
p = fresh()
|
|
emit(` %${p} =w cnel ${v}, ${text(qbe.js_null)}`)
|
|
emit(` jnz %${p}, @${sanitize(a2)}, @${p}_n`)
|
|
emit(`@${p}_n`)
|
|
continue
|
|
}
|
|
|
|
// --- Function calls [G] ---
|
|
|
|
if (op == "frame") {
|
|
emit(` %fp =l call $__frame_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "setarg") {
|
|
v = s_read(a1)
|
|
lhs = s_read(a3)
|
|
emit(` call $cell_rt_setarg(l ${v}, l ${text(a2)}, l ${lhs})`)
|
|
continue
|
|
}
|
|
if (op == "invoke") {
|
|
// Dispatch loop invoke: store resume info, signal, return 0
|
|
seg_counter = seg_counter + 1
|
|
seg_num = seg_counter
|
|
// Store (seg_num << 16 | result_slot) as tagged int in frame->address
|
|
resume_val = seg_num * 65536 + a2
|
|
// frame->address is at fp - 8, store as tagged int (n << 1)
|
|
emit(` %_inv_addr${text(seg_num)} =l sub %fp, 8`)
|
|
emit(` storel ${text(resume_val * 2)}, %_inv_addr${text(seg_num)}`)
|
|
emit(` call $cell_rt_signal_call(l %ctx, l %fp, l ${text(a1)})`)
|
|
emit(" ret 0")
|
|
emit(`@_seg${text(seg_num)}`)
|
|
// Check for exception after dispatch loop resumes us
|
|
p = fresh()
|
|
emit(` %${p} =w call $JS_HasException(l %ctx)`)
|
|
if (has_handler && !in_handler) {
|
|
emit(` jnz %${p}, @disruption_handler, @${p}_ok`)
|
|
} else {
|
|
needs_exc_ret = true
|
|
emit(` jnz %${p}, @_exc_ret, @${p}_ok`)
|
|
}
|
|
emit(`@${p}_ok`)
|
|
last_was_term = false
|
|
continue
|
|
}
|
|
if (op == "tail_invoke") {
|
|
// Same as invoke — dispatch loop regular call with resume
|
|
seg_counter = seg_counter + 1
|
|
seg_num = seg_counter
|
|
resume_val = seg_num * 65536 + a2
|
|
emit(` %_tinv_addr${text(seg_num)} =l sub %fp, 8`)
|
|
emit(` storel ${text(resume_val * 2)}, %_tinv_addr${text(seg_num)}`)
|
|
emit(` call $cell_rt_signal_call(l %ctx, l %fp, l ${text(a1)})`)
|
|
emit(" ret 0")
|
|
emit(`@_seg${text(seg_num)}`)
|
|
// Check for exception after dispatch loop resumes us
|
|
p = fresh()
|
|
emit(` %${p} =w call $JS_HasException(l %ctx)`)
|
|
if (has_handler && !in_handler) {
|
|
emit(` jnz %${p}, @disruption_handler, @${p}_ok`)
|
|
} else {
|
|
needs_exc_ret = true
|
|
emit(` jnz %${p}, @_exc_ret, @${p}_ok`)
|
|
}
|
|
emit(`@${p}_ok`)
|
|
last_was_term = false
|
|
continue
|
|
}
|
|
if (op == "goframe") {
|
|
emit(` %fp =l call $__goframe_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "goinvoke") {
|
|
// Dispatch loop tail call: signal tail call and return 0
|
|
// Use 0xFFFF as ret_slot (no result to store — it's a tail call)
|
|
p = fresh()
|
|
emit(` %${p}_addr =l sub %fp, 8`)
|
|
emit(` storel ${text(65535 * 2)}, %${p}_addr`)
|
|
emit(` call $cell_rt_signal_tail_call(l %ctx, l %fp, l ${text(a1)})`)
|
|
emit(" ret 0")
|
|
last_was_term = true
|
|
continue
|
|
}
|
|
|
|
// --- Function object creation [G] ---
|
|
|
|
if (op == "function") {
|
|
fn_arity = 0
|
|
fn_nr_slots = 0
|
|
if (a2 >= 0 && a2 < length(ir.functions)) {
|
|
fn_arity = ir.functions[a2].nr_args
|
|
fn_nr_slots = ir.functions[a2].nr_slots
|
|
}
|
|
emit(` %fp =l call $__function_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(fn_arity)}, l ${text(fn_nr_slots)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- Record/Array creation [G] ---
|
|
|
|
if (op == "record") {
|
|
emit(` %fp =l call $__new_record_ss(l %ctx, l %fp, l ${text(a1)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "array") {
|
|
emit(` %fp =l call $__new_array_ss(l %ctx, l %fp, l ${text(a1)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- Array push/pop [G] ---
|
|
|
|
if (op == "push") {
|
|
emit(` %fp =l call $__push_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
if (op == "pop") {
|
|
emit(` %fp =l call $__pop_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- Length [G] ---
|
|
|
|
if (op == "length") {
|
|
emit(` %fp =l call $__length_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- Misc ---
|
|
|
|
if (op == "return") {
|
|
v = s_read(a1)
|
|
emit(` ret ${v}`)
|
|
last_was_term = true
|
|
continue
|
|
}
|
|
if (op == "disrupt") {
|
|
emit(` call $cell_rt_disrupt(l %ctx)`)
|
|
if (has_handler && !in_handler) {
|
|
emit(" jmp @disruption_handler")
|
|
} else {
|
|
emit(` ret 15`)
|
|
}
|
|
last_was_term = true
|
|
continue
|
|
}
|
|
if (op == "delete") {
|
|
pn = null
|
|
if (is_text(a3)) {
|
|
pn = a3
|
|
} else if (is_object(a3)) {
|
|
if (a3.name != null) {
|
|
pn = a3.name
|
|
} else if (a3.value != null) {
|
|
pn = a3.value
|
|
}
|
|
}
|
|
if (pn != null) {
|
|
sl = intern_str(pn)
|
|
emit(` %fp =l call $__delete_field_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${sl})`)
|
|
} else {
|
|
emit(` %fp =l call $__delete_dynamic_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
}
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- in [G] ---
|
|
|
|
if (op == "in") {
|
|
// IR: ["in", dest, key_slot, obj_slot]
|
|
emit(` %fp =l call $__in_ss(l %ctx, l %fp, l ${text(a1)}, l ${text(a2)}, l ${text(a3)})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- regexp [G] ---
|
|
|
|
if (op == "regexp") {
|
|
// IR: ["regexp", dest_slot, pattern_string, flags_string]
|
|
pat_label = intern_str(a2)
|
|
flg_label = intern_str(a3)
|
|
emit(` %fp =l call $__regexp_ss(l %ctx, l %fp, l ${text(a1)}, l ${pat_label}, l ${flg_label})`)
|
|
emit_exc_check()
|
|
continue
|
|
}
|
|
|
|
// --- Unknown opcode ---
|
|
emit(` # unknown: ${op}`)
|
|
}
|
|
|
|
// Emit @disrupt landing pad for arithmetic type-error branches
|
|
if (!last_was_term) {
|
|
emit(" jmp @disrupt")
|
|
}
|
|
emit("@disrupt")
|
|
emit(` call $cell_rt_disrupt(l %ctx)`)
|
|
emit(` ret 15`)
|
|
|
|
// Shared exception return (for functions without disruption handler)
|
|
if (needs_exc_ret) {
|
|
emit("@_exc_ret")
|
|
emit(" ret 15")
|
|
}
|
|
|
|
emit("}")
|
|
emit("")
|
|
}
|
|
|
|
// ============================================================
|
|
// Main: compile all functions then main
|
|
// ============================================================
|
|
|
|
var fn_bodies = []
|
|
var fi = 0
|
|
while (fi < length(ir.functions)) {
|
|
out = []
|
|
compile_fn(ir.functions[fi], fi, false)
|
|
fn_bodies[] = text(out, "\n")
|
|
fi = fi + 1
|
|
}
|
|
|
|
out = []
|
|
compile_fn(ir.main, -1, true)
|
|
fn_bodies[] = text(out, "\n")
|
|
|
|
// Export nr_slots for main function so the module loader can use right-sized frames
|
|
var main_name = export_name ? sanitize(export_name) : "cell_main"
|
|
push(data_out, `export data $${main_name}_nr_slots = { w ${text(ir.main.nr_slots)} }`)
|
|
|
|
return {
|
|
data: text(data_out, "\n"),
|
|
functions: fn_bodies,
|
|
helpers: emit_helpers(qbe)
|
|
}
|
|
}
|
|
|
|
return qbe_emit
|