[committed][RISC-V] Fix ordering of pipeline models

[Jeff Law]

I missed that the new ascalon pipeline description was put into the 
wrong place during review.  The net is tests which wanted to use 
generic-ooo explicitly for stability in the test output ended up getting 
 a different pipeline model and different codegen than the test expected.

This tripped a small number of vsetvl failures in the testsuite.
This has spun on riscv64-elf and riscv32-elf in my tester and fixes the 
regression.  I'm going to go ahead and push it as I'm likely offline 
this afternoon/evening and don't want anyone else to waste their time 
chasing the regression down.




Jeff

gcc/
        * config/riscv/riscv-opts.h (riscv_microarchitecture_type): Fix 
ordering.

diff --git a/gcc/config/riscv/riscv-opts.h b/gcc/config/riscv/riscv-opts.h
index 54f89781a55e..4e4e9d8930e2 100644
--- a/gcc/config/riscv/riscv-opts.h
+++ b/gcc/config/riscv/riscv-opts.h
@@ -57,10 +57,10 @@ enum riscv_microarchitecture_type {
   sifive_7,
   sifive_p400,
   sifive_p600,
-  tt_ascalon_d8,
   xiangshan,
   generic_ooo,
   mips_p8700,
+  tt_ascalon_d8,
 };
 extern enum riscv_microarchitecture_type riscv_microarchitecture;