[lfs] 03/03: loongarch: gcc: add a patch

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git pushed a commit to branch xry111/loongarch
in repository lfs.

commit c2a6ea1ecf92d8c8aff7a6f55e2cbd3e5d3fe3f5
Author: Xi Ruoyao <[email protected]>
AuthorDate: Thu Jan 29 20:52:26 2026 +0800

    loongarch: gcc: add a patch
    
    Fix a severe performance regression and two ICEs on LoongArch.  There
    are more LoongArch fixes pending in the releases/gcc-15 branch but I'm
    unsure if there's any significant necessity to introduce them.  I may
    make a -2 patch before 12.5 release if some issue is highlighted during
    test builds.
---
 chapter03/patches.xml | 7 +++++++
 chapter08/gcc.xml     | 5 +++++
 patches.ent           | 6 ++++++
 3 files changed, 18 insertions(+)

diff --git a/chapter03/patches.xml b/chapter03/patches.xml
index 4b38d1a52..9ae8567e8 100644
--- a/chapter03/patches.xml
+++ b/chapter03/patches.xml
@@ -75,6 +75,13 @@
       </listitem>
    </varlistentry>
 
+    <varlistentry>
+      <term>GCC LoongArch Fixes Patch - <token>&gcc-loongarch-fixes-patch-size;</token>:</term>
+      <listitem>
+        <para>Download: <ulink url="https://www.linuxfromscratch.org/~xry111/lfs/patches/&gcc-loongarch-fixes-patch;"/></para>
+        <para>MD5 sum: <literal>&gcc-loongarch-fixes-patch-md5;</literal></para>
+      </listitem>
+    </varlistentry>
 <!--
     <varlistentry>
       <term>Gcc glibc-2.36 Fixes Patch - <token>&gcc-upstream-fixes-patch-size;</token>:</term>
diff --git a/chapter08/gcc.xml b/chapter08/gcc.xml
index 7c273f563..0450f0318 100644
--- a/chapter08/gcc.xml
+++ b/chapter08/gcc.xml
@@ -45,6 +45,11 @@
 
     <screen><userinput remap="pre">sed -i 's/char [*]q/const &amp;/' libgomp/affinity-fmt.c</userinput></screen>
 
+    <para>Fix a severe performance issue and two compiler crash issues
+    on LoongArch:</para>
+
+    <screen><userinput remap="pre">patch -Np1 -i ../&gcc-loongarch-fixes-patch;</userinput></screen>
+
     <para>Set the default directory name for
     64-bit libraries to <quote>lib</quote>:</para>
 
diff --git a/patches.ent b/patches.ent
index 55911d2d1..32c3f62b4 100644
--- a/patches.ent
+++ b/patches.ent
@@ -64,3 +64,9 @@
 <!ENTITY systemd-upstream-patch-md5 "8d9c1014445c463cf7c24c162b1e0686">
 <!ENTITY systemd-upstream-patch-size "7.2 KB">
 -->
+
+<!-- Put LoongArch patches last to reduce the chance of a conflict during
+     merge.  -->
+<!ENTITY gcc-loongarch-fixes-patch "gcc-&gcc-version;-loongarch_fixes-1.patch">
+<!ENTITY gcc-loongarch-fixes-patch-md5 "9e9ab8423aa3e37b68cf9f372d3c5cfa">
+<!ENTITY gcc-loongarch-fixes-patch-size "7.4 KB">

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