xry111

diff --color -Naur firefox-91.8.0.orig/build/moz.configure/init.configure firefox-91.8.0.patched/build/moz.configure/init.configure
--- firefox-91.8.0.orig/build/moz.configure/init.configure	2022-03-31 03:25:29.000000000 +0800
+++ firefox-91.8.0.patched/build/moz.configure/init.configure	2022-04-21 19:24:15.397434052 +0800
@@ -753,6 +753,9 @@
     elif cpu.startswith("arm"):
         canonical_cpu = "arm"
         endianness = "big" if cpu.startswith(("armeb", "armbe")) else "little"
+    elif cpu in ("loongarch64"):
+        canonical_cpu = "loongarch64"
+        endianness = "little"

xry111

diff --git a/gas/NEWS b/gas/NEWS
index cf4e8ff7c95..d699a78b50d 100644
--- a/gas/NEWS
+++ b/gas/NEWS
@@ -66,6 +66,37 @@ Changes in 2.42:
 * The BPF assembler now allows using both hash (#) and double slash (//) to
   begin line comments.
 
+* Add support for LoongArch v1.10 new instructions: estimated reciprocal
+  instructions, sub-word atomic instructions, atomic CAS instructions,

xry111

From 5f9783382bbe039d1fd00fe43ff5adce3405398e Mon Sep 17 00:00:00 2001
From: Xi Ruoyao <xry111@xry111.site>
Date: Tue, 11 Jun 2024 18:37:27 +0800
Subject: [PATCH] [NOT FOR UPSTREAM] LBT

Note that the result is *slower* so this is just a toy project.  Maybe
we can use it if "-mlbt -Os" but I don't think it's valuable enough for
upstreaming.
---
 gcc/config/loongarch/lbt.md              | 242 +++++++++++++++++++++++