[PATCH, testsuite] MIPS: Upgrade to R2 for -mnan=2008 and -mabs=2008.

[Toma Tabacu]

Hi,

The -mnan=2008 and -mabs=2008 options are not supported on pre-R2 targets.
This results in failures for tests which use these options, such as nan-2008.c,
fabs-2008.c etc.

This patch makes the testsuite upgrade to R2 if -mnan=2008 and -mabs=2008 are
used as test options.

Tested with mips-mti-elf.

Regards,
Toma Tabacu

gcc/testsuite/ChangeLog:

	* gcc.target/mips/mips.exp (mips-dg-options): Upgrade to R2 for
	-mnan=2008 and -mabs=2008.

diff --git a/gcc/testsuite/gcc.target/mips/mips.exp b/gcc/testsuite/gcc.target/mips/mips.exp
index c0b9680..3d04d2f 100644
--- a/gcc/testsuite/gcc.target/mips/mips.exp
+++ b/gcc/testsuite/gcc.target/mips/mips.exp
@@ -1145,7 +1145,9 @@ proc mips-dg-options { args } {
 		 || [mips_have_test_option_p options "HAS_INS"]
 		 || [mips_have_test_option_p options "HAS_MADD"]
 		 || [mips_have_test_option_p options "HAS_MADDPS"]
-		 || [mips_have_test_option_p options "-mdspr2"]) } {
+		 || [mips_have_test_option_p options "-mdspr2"]
+		 || [mips_have_test_option_p options "-mnan=2008"]
+		 || [mips_have_test_option_p options "-mabs=2008"]) } {
 	    if { $gp_size == 32 } {
 		mips_make_test_option options "-mips32r2"
 	    } else {