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lib/strings,wcc,w6l: collapse nested-if to &&/|| at named sites (Wave-2 structural)

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strings.bytesub two endpoint guards, wcc cgdot/cgassign 4-deep
allptr/N_IDENT/localfindnode pyramids, and w6l isarchive's 8 sequential
magic-byte rejects. The isarchive len<8 read-guard stays a separate
statement before the || chain so the byte reads remain bounded. Not
byte-id-neutral (short-circuit emits tighter branches / renumbered
labels) but functionally identical; cs==ww stage-parity holds.
Regenerated all embedding combined.ww.
This commit is contained in:
Hojun-Cho
2026-06-02 22:53:05 +09:00
parent 52d15ae92d
commit aa3aae05b9
9 changed files with 62 additions and 102 deletions
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selfhost/cmd/w6a/main.combined.ww
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@@ -2108,15 +2108,11 @@ export fn sub(s: str, start: i32, end: i32) str = {
export fn bytesub(s: str, start: i32, end: i32) (str | utf8.invalid) = {
os.assert(start <= end, "strings.bytesub: start is higher than end");
os.assert(end <= s.len, "strings.bytesub: end exceeds string length");
if (start < s.len) {
if ((s[start] & 0xC0u8) == 0x80u8) {
let e: utf8.invalid; return e;
};
if (start < s.len && (s[start] & 0xC0u8) == 0x80u8) {
let e: utf8.invalid; return e;
};
if (end < s.len) {
if ((s[end] & 0xC0u8) == 0x80u8) {
let e: utf8.invalid; return e;
};
if (end < s.len && (s[end] & 0xC0u8) == 0x80u8) {
let e: utf8.invalid; return e;
};
let r: str;
r.ptr = s.ptr + (start: u64);