File _service:tar_scm:0045-LoongArch-Fix-runtime-err... of Package gcc

File _service:tar_scm:0045-LoongArch-Fix-runtime-error-in-a-gcc-build-with-with.patch of Package gcc

From fa28ce4ac91691595e14838be49c9dd42b153b7f Mon Sep 17 00:00:00 2001
From: Guo Jie <guojie@loongson.cn>
Date: Thu, 23 Nov 2023 11:05:56 +0800
Subject: [PATCH 045/188] LoongArch: Fix runtime error in a gcc build with
 --with-build-config=bootstrap-ubsan

gcc/ChangeLog:

* config/loongarch/loongarch.cc (loongarch_split_plus_constant):
	avoid left shift of negative value -0x8000.
---
 gcc/config/loongarch/loongarch.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/loongarch/loongarch.cc b/gcc/config/loongarch/loongarch.cc
index 048d3802b..ecceca22d 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -4265,7 +4265,7 @@ loongarch_split_plus_constant (rtx *op, machine_mode mode)
   else if (loongarch_addu16i_imm12_operand_p (v, mode))
     a = (v & ~HWIT_UC_0xFFF) + ((v & 0x800) << 1);
   else if (mode == DImode && DUAL_ADDU16I_OPERAND (v))
-    a = (v > 0 ? 0x7fff : -0x8000) << 16;
+    a = (v > 0 ? 0x7fff0000 : ~0x7fffffff);
   else
     gcc_unreachable ();
 
-- 
2.43.0