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fix(compiler): == / != on references is identity; only text compares by content

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emit_bin_vals lowered every pointer-typed ==/!= to @lp_str_eq, so two
distinct records compared their bytes up to the first zero byte. Content
compare now needs both sides to be text (string, or the untyped
pointer/ptr runtime code carries text in); other references use
icmp eq ptr, and string vs a non-text reference is a compile error.
Adds selfhost/tests/identity.ludic; both seeds regenerated.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-16 16:06:31 +03:00
parent e010c2cecc
commit 1900f9ca80
7 changed files with 19750 additions and 19403 deletions
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@ -0,0 +1,10 @@
bump: patch
type: fix
**`==` / `!=` on records is identity again** — only two strings compare by content.
Every pointer-typed comparison used to be lowered to a C-string content compare,
so two distinct records (properties, slices, enums) compared their bytes up to
the first zero byte: `a == b` could be true for different objects that shared a
leading field, depending on layout. References now compare by identity
(`icmp eq ptr`); `string` (and untyped `pointer`/`pointers` text) still compares by content,
and comparing a `string` with a non-string reference is a compile error.