Add mips option dependency only config with loongson target.

gcc/testsuite/
	* gcc.target/mips/mips.exp (mips-dg-options):
	Add mips_option_dependency msoft-float vs no-mmi and
	mips16/micromips vs no-mmi/ext/ext2 only gcc
	config with Loongson target.

From-SVN: r265908

gcc/testsuite/ChangeLog

+2018-11-08  Chenghua Xu  <paul.hua.gm@gmail.com>
+
+	* gcc.target/mips/mips.exp (mips-dg-options):
+	Add mips_option_dependency msoft-float vs no-mmi and
+	mips16/micromips vs no-mmi/ext/ext2 only gcc
+	config with Loongson target.
+
 2018-11-07  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 
 	* gcc.c-torture/compile/pr65595.c: Change type of "num" argument to

gcc/testsuite/gcc.target/mips/mips.exp

@@ -1054,10 +1054,19 @@ proc mips-dg-options { args } {
     mips_option_dependency options "-mno-plt" "addressing=unknown"
     mips_option_dependency options "-mabicalls" "-G0"
     mips_option_dependency options "-mno-gpopt" "-mexplicit-relocs"
-    mips_option_dependency options "-mips16" "-mno-loongson-mmi"
-    mips_option_dependency options "-mmicromips" "-mno-loongson-mmi"
-    mips_option_dependency options "-msoft-float" "-mno-loongson-mmi"
-    mips_option_dependency options "-mmicromips" "-mno-loongson-ext"
+
+    if { [check_configured_with "with-arch=loongson3a"] 
+	 || [check_configured_with "with-arch=gs464"]
+	 || [check_configured_with "with-arch=gs464e"]
+	 || [check_configured_with "with-arch=gs264e"] } {
+	mips_option_dependency options "-msoft-float" "-mno-loongson-mmi"
+	mips_option_dependency options "-mips16" "-mno-loongson-mmi"
+	mips_option_dependency options "-mips16" "-mno-loongson-ext"
+	mips_option_dependency options "-mips16" "-mno-loongson-ext2"
+	mips_option_dependency options "-mmicromips" "-mno-loongson-mmi"
+	mips_option_dependency options "-mmicromips" "-mno-loongson-ext"
+	mips_option_dependency options "-mmicromips" "-mno-loongson-ext2"
+    }
 
     # Work out information about the current ABI.
     set abi_test_option_p [mips_test_option_p options abi]