re PR target/50579 (gcc.target/mips/20020620-1.c FAILs on IRIX 6.5)

re PR target/50579 (gcc.target/mips/20020620-1.c FAILs on IRIX 6.5)

gcc/testsuite/
	PR target/50579
	* gcc.target/mips/mips.exp (mips_long32_abi_p, mips_long64_abi_p):
	New procedures.
	(mips-dg-options): Force an ABI option if the current ABI is
	incompatible with the required -mlong setting.  Likewise force
	a long setting if the current one is incompatible with the
	chosen ABI.  Keep abi_test_option_p, abi and eabi_p updated
	throughout procedure.
	* gcc.target/mips/abi-o64-long64.c: Require -mno-abicalls
	instead of addressing=absolute.

From-SVN: r179433