[PATCH] RISC-V: Change default ISA version into 20191213

[jiawei]

Bump default ISA spec to newer version 20191213, current default ISA spec
is 2.2, but it's already out of date for a long time, sync with binutils
ISA version, convention in toolchain use.

gcc/ChangeLog:

        * config.gcc: Modify default isa_spec version.

---
 gcc/config.gcc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/gcc/config.gcc b/gcc/config.gcc
index f1b8d832c6f..47dc5a71917 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -4641,12 +4641,12 @@ case "${target}" in
                esac
 
                case "${with_isa_spec}" in
-               ""|default|2.2)
-                       tm_defines="${tm_defines} 
TARGET_DEFAULT_ISA_SPEC=ISA_SPEC_CLASS_2P2"
-                       ;;
-               20191213 | 201912)
+               ""|default|20191213|201912)
                        tm_defines="${tm_defines} 
TARGET_DEFAULT_ISA_SPEC=ISA_SPEC_CLASS_20191213"
                        ;;
+               2.2)
+                       tm_defines="${tm_defines} 
TARGET_DEFAULT_ISA_SPEC=ISA_SPEC_CLASS_2P2"
+                       ;;
                20190608 | 201906)
                        tm_defines="${tm_defines} 
TARGET_DEFAULT_ISA_SPEC=ISA_SPEC_CLASS_20190608"
                        ;;
-- 
2.25.1