From fc561b96a4f013c19d4479aa54ae61d8543cd100 Mon Sep 17 00:00:00 2001
From: Huang Yang <huangyang@loongson.cn>
Date: Mon, 1 Sep 2025 15:25:24 +0800
Subject: [PATCH] Add loongarch64 support

---
 0001-bigfft-add-loong64.patch            | 60 ++++++++++++++++++++++++
 golang-github-remyoudompheng-bigfft.spec |  8 +++-
 2 files changed, 67 insertions(+), 1 deletion(-)
 create mode 100644 0001-bigfft-add-loong64.patch

diff --git a/0001-bigfft-add-loong64.patch b/0001-bigfft-add-loong64.patch
new file mode 100644
index 0000000..a94e5c6
--- /dev/null
+++ b/0001-bigfft-add-loong64.patch
@@ -0,0 +1,60 @@
+From b834d9c22dbbacbc38978280141711baa63904c9 Mon Sep 17 00:00:00 2001
+From: Huang Yang <huangyang@loongson.cn>
+Date: Mon, 1 Sep 2025 15:20:30 +0800
+Subject: [PATCH] bigfft add loong64
+
+---
+ arith_loong64.s | 41 +++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 41 insertions(+)
+ create mode 100644 arith_loong64.s
+
+diff --git a/arith_loong64.s b/arith_loong64.s
+new file mode 100644
+index 0000000..53bcc7e
+--- /dev/null
++++ b/arith_loong64.s
+@@ -0,0 +1,41 @@
++// Trampolines to math/big assembly implementations.
++
++// +build loong64
++
++#include "textflag.h"
++
++// func addVV(z, x, y []Word) (c Word)
++TEXT ·addVV(SB),NOSPLIT,$0
++	JMP	math∕big·addVV(SB)
++
++// func subVV(z, x, y []Word) (c Word)
++// (same as addVV except for SBBQ instead of ADCQ and label names)
++TEXT ·subVV(SB),NOSPLIT,$0
++	JMP	math∕big·subVV(SB)
++
++// func addVW(z, x []Word, y Word) (c Word)
++TEXT ·addVW(SB),NOSPLIT,$0
++	JMP	math∕big·addVW(SB)
++
++// func subVW(z, x []Word, y Word) (c Word)
++// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
++TEXT ·subVW(SB),NOSPLIT,$0
++	JMP	math∕big·subVW(SB)
++
++// func shlVU(z, x []Word, s uint) (c Word)
++TEXT ·shlVU(SB),NOSPLIT,$0
++	JMP	math∕big·shlVU(SB)
++
++// func shrVU(z, x []Word, s uint) (c Word)
++TEXT ·shrVU(SB),NOSPLIT,$0
++	JMP	math∕big·shrVU(SB)
++
++// func mulAddVWW(z, x []Word, y, r Word) (c Word)
++TEXT ·mulAddVWW(SB),NOSPLIT,$0
++	JMP	math∕big·mulAddVWW(SB)
++
++// func addMulVVW(z, x []Word, y Word) (c Word)
++TEXT ·addMulVVW(SB),NOSPLIT,$0
++	JMP	math∕big·addMulVVW(SB)
++
++
+-- 
+2.43.7
+
diff --git a/golang-github-remyoudompheng-bigfft.spec b/golang-github-remyoudompheng-bigfft.spec
index 3baa13f..9f9f817 100644
--- a/golang-github-remyoudompheng-bigfft.spec
+++ b/golang-github-remyoudompheng-bigfft.spec
@@ -15,12 +15,13 @@ Big integer multiplication library for Go using Fast Fourier transform.}
 
 Name:           %{goname}
 Version:        0
-Release:    2%{?dist}
+Release:    3%{?dist}
 Summary:        Big integer multiplication library for Go using Fast Fourier transform
 
 License:        BSD
 URL:            %{gourl}
 Source0:        %{gosource}
+Patch3000:      0001-bigfft-add-loong64.patch
 
 %description
 %{common_description}
@@ -29,6 +30,7 @@ Source0:        %{gosource}
 
 %prep
 %goprep
+%autopatch -p1
 
 %install
 %gopkginstall
@@ -41,6 +43,10 @@ Source0:        %{gosource}
 %gopkgfiles
 
 %changelog
+* Mon Sep 01 2025 Huang Yang <huangyang@loongson.cn> - 0-3.giteec4a21
+- [Type] bugfix
+- [DESC] add loongarch support
+
 * Mon Jun 09 2025 bbrucezhang <bbrucezhang@tencent.com> - 0-2.giteec4a21
 - Rebuilt for loongarch64
 
-- 
Gitee