gcc-16 loong64: work around for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123807

Author: mr-c

simde/simde-common.h

@@ -1063,20 +1063,22 @@ HEDLEY_DIAGNOSTIC_POP
 #      if !HEDLEY_GCC_VERSION_CHECK(12,0,0)
 #        define SIMDE_BUG_VEC_CPSGN_REVERSED_ARGS
 #      endif
-#    endif
-#    if defined(SIMDE_ARCH_ZARCH)
+#    elif defined(SIMDE_ARCH_ZARCH)
 #      define SIMDE_BUG_GCC_95782
 #      if HEDLEY_GCC_VERSION_CHECK(10,0,0)
 #        define SIMDE_BUG_GCC_101614
 #      endif
-#    endif
-#    if defined(SIMDE_ARCH_MIPS_MSA)
+#    elif defined(SIMDE_ARCH_MIPS_MSA)
 #      define SIMDE_BUG_GCC_97248
 #      if !HEDLEY_GCC_VERSION_CHECK(12,1,0)
 #        define SIMDE_BUG_GCC_100760
 #        define SIMDE_BUG_GCC_100761
 #        define SIMDE_BUG_GCC_100762
 #      endif
+#    elif defined(SIMDE_ARCH_LOONGARCH)
+#      if HEDLEY_GCC_VERSION_CHECK(16,0,0)
+#        define SIMDE_BUG_GCC_123807
+#      endif
 #    endif
 #    if !defined(__OPTIMIZE__) && !(\
        HEDLEY_GCC_VERSION_CHECK(11,4,0) \