mips.exp: Handle -f{no-,}common.

gcc/testsuite/
	* gcc.target/mips/mips.exp: Handle -f{no-,}common.
	* gcc.target/mips/memcpy-1.c: Remove redundant dg-do.
	Run with -fno-common.

From-SVN: r200041

gcc/testsuite/ChangeLog

+2013-06-12  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	* gcc.target/mips/mips.exp: Handle -f{no-,}common.
+	* gcc.target/mips/memcpy-1.c: Remove redundant dg-do.
+	Run with -fno-common.
+
 2013-06-12  Balaji V. Iyer  <balaji.v.iyer@intel.com>
 
 	* c-c++-common/cilk-plus/AN/sec_implicit_ex.c (main): Replaced abort

gcc/testsuite/gcc.target/mips/memcpy-1.c

-/* { dg-do compile } */
+/* { dg-options "-fno-common" } */
 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
 /* { dg-final { scan-assembler-not "\tlbu\t" } } */
 

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

@@ -286,6 +286,7 @@ foreach option {
 
 # Add -ffoo/-fno-foo options to mips_option_groups.
 foreach option {
+    common
     delayed-branch
     expensive-optimizations
     fast-math