[gcc r14-4584] LoongArch: Adjust makefile dependency for loongarch headers.

[gcc r14-4584] LoongArch: Adjust makefile dependency for loongarch headers.

[LuluCheng]

https://gcc.gnu.org/g:3c23183652b5de791ba56fd1d7c14a529dc8ef0d

commit r14-4584-g3c23183652b5de791ba56fd1d7c14a529dc8ef0d
Author: Yang Yujie <yangyujie@loongson.cn>
Date:   Wed Oct 11 17:59:53 2023 +0800

    LoongArch: Adjust makefile dependency for loongarch headers.
    
    gcc/ChangeLog:
    
            * config.gcc: Add loongarch-driver.h to tm_files.
            * config/loongarch/loongarch.h: Do not include loongarch-driver.h.
            * config/loongarch/t-loongarch: Append loongarch-multilib.h to $(GTM_H)
            instead of $(TM_H) for building generator programs.

Diff:
---
 gcc/config.gcc                   | 4 ++--
 gcc/config/loongarch/loongarch.h | 3 ---
 gcc/config/loongarch/t-loongarch | 3 ++-
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/gcc/config.gcc b/gcc/config.gcc
index cc37a9c768d..7d2fe2e29c3 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2525,7 +2525,7 @@ riscv*-*-freebsd*)
 
 loongarch*-*-linux*)
 	tm_file="elfos.h gnu-user.h linux.h linux-android.h glibc-stdint.h ${tm_file}"
-	tm_file="${tm_file} loongarch/gnu-user.h loongarch/linux.h"
+	tm_file="${tm_file} loongarch/gnu-user.h loongarch/linux.h loongarch/loongarch-driver.h"
 	extra_options="${extra_options} linux-android.opt"
 	tmake_file="${tmake_file} loongarch/t-multilib loongarch/t-linux"
 	gnu_ld=yes
@@ -2538,7 +2538,7 @@ loongarch*-*-linux*)
 
 loongarch*-*-elf*)
 	tm_file="elfos.h newlib-stdint.h ${tm_file}"
-	tm_file="${tm_file} loongarch/elf.h loongarch/linux.h"
+	tm_file="${tm_file} loongarch/elf.h loongarch/linux.h loongarch/loongarch-driver.h"
 	tmake_file="${tmake_file} loongarch/t-multilib loongarch/t-linux"
 	gnu_ld=yes
 	gas=yes
diff --git a/gcc/config/loongarch/loongarch.h b/gcc/config/loongarch/loongarch.h
index d357e32e414..19a18fb5f1b 100644
--- a/gcc/config/loongarch/loongarch.h
+++ b/gcc/config/loongarch/loongarch.h
@@ -49,9 +49,6 @@ along with GCC; see the file COPYING3.  If not see
 
 #define TARGET_LIBGCC_SDATA_SECTION ".sdata"
 
-/* Driver native functions for SPEC processing in the GCC driver.  */
-#include "loongarch-driver.h"
-
 /* This definition replaces the formerly used 'm' constraint with a
    different constraint letter in order to avoid changing semantics of
    the 'm' constraint when accepting new address formats in
diff --git a/gcc/config/loongarch/t-loongarch b/gcc/config/loongarch/t-loongarch
index 9b06fa84bcc..667a6bb3b50 100644
--- a/gcc/config/loongarch/t-loongarch
+++ b/gcc/config/loongarch/t-loongarch
@@ -16,7 +16,8 @@
 # along with GCC; see the file COPYING3.  If not see
 # <http://www.gnu.org/licenses/>.
 
-TM_H += loongarch-multilib.h $(srcdir)/config/loongarch/loongarch-driver.h
+
+GTM_H += loongarch-multilib.h
 OPTIONS_H_EXTRA += $(srcdir)/config/loongarch/loongarch-def.h \
 		   $(srcdir)/config/loongarch/loongarch-tune.h