From ee063e708a119012653bf22db5111537d2d53cb6 Mon Sep 17 00:00:00 2001
From: connnnal <216976529+connnnal@users.noreply.github.com>
Date: Thu, 9 Oct 2025 11:38:22 +0100
Subject: [PATCH] Disable bounds check for the first utf8 byte Known safe from
 prior `n < 1` check

---
 core/unicode/utf8/utf8.odin | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/unicode/utf8/utf8.odin b/core/unicode/utf8/utf8.odin
index 67f8a8be9..91ec44886 100644
--- a/core/unicode/utf8/utf8.odin
+++ b/core/unicode/utf8/utf8.odin
@@ -108,7 +108,7 @@ decode_rune_in_bytes :: proc "contextless" (s: []u8) -> (rune, int) {
 	if n < 1 {
 		return RUNE_ERROR, 0
 	}
-	s0 := s[0]
+	#no_bounds_check s0 := s[0]
 	x := accept_sizes[s0]
 	if x >= 0xF0 {
 		mask := rune(x) << 31 >> 31 // NOTE(bill): Create 0x0000 or 0xffff.