[gcc r14-9142] LoongArch: When checking whether the assembler supports conditional branch relaxation, add compilati

[LuluCheng <chenglulu@gcc.gnu.org>]

https://gcc.gnu.org/g:33abf74108f37fb7792572e538617fd15c8ade29

commit r14-9142-g33abf74108f37fb7792572e538617fd15c8ade29
Author: Lulu Cheng <chenglulu@loongson.cn>
Date:   Wed Feb 21 11:17:14 2024 +0800

    LoongArch: When checking whether the assembler supports conditional branch relaxation, add compilation parameter "--fatal-warnings" to the assembler.
    
    In binutils 2.40 and earlier versions, only a warning will be reported
    when a relocation immediate value is out of bounds. As a result,
    the value of the macro HAVE_AS_COND_BRANCH_RELAXATION will also be
    defined as 1 when the assembler does not support conditional branch
    relaxation. Therefore, add the compilation option "--fatal-warnings"
    to avoid this problem.
    
    gcc/ChangeLog:
    
            * configure: Regenerate.
            * configure.ac: Add parameter "--fatal-warnings" to assemble
            when checking whether the assemble support conditional branch
            relaxation.

Diff:
---
 gcc/configure    | 2 +-
 gcc/configure.ac | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/configure b/gcc/configure
index 41b978b0380b..f1d434fede0f 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -31136,7 +31136,7 @@ else
        nop
        .endr
        beq $a0,$a1,a' > conftest.s
-    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags --fatal-warnings -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 72012d61e671..9ebc578e4cc2 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -5486,7 +5486,7 @@ x:
 		[Define if your assembler supports -mrelax option.])])
     gcc_GAS_CHECK_FEATURE([conditional branch relaxation support],
       gcc_cv_as_loongarch_cond_branch_relax,
-      [],
+      [--fatal-warnings],
       [a:
        .rept 32769
        nop