8343555: RISC-V: make some verified (on hardware) extension options diagnostic

Reviewed-by: fyang, rehn

Author: Hamlin Li

src/hotspot/cpu/riscv/globals_riscv.hpp

@@ -98,12 +98,12 @@ define_pd_global(intx, InlineSmallCode,          1000);
   product(bool, UseRVA20U64, true, "Use RVA20U64 profile")                       \
   product(bool, UseRVA22U64, false, EXPERIMENTAL, "Use RVA22U64 profile")        \
   product(bool, UseRVA23U64, false, EXPERIMENTAL, "Use RVA23U64 profile")        \
-  product(bool, UseRVC, false, "Use RVC instructions")                           \
-  product(bool, UseRVV, false, "Use RVV instructions")                           \
-  product(bool, UseZba, false, "Use Zba instructions")                           \
-  product(bool, UseZbb, false, "Use Zbb instructions")                           \
-  product(bool, UseZbs, false, "Use Zbs instructions")                           \
-  product(bool, UseZfh, false, "Use Zfh instructions")                           \
+  product(bool, UseRVC, false, DIAGNOSTIC, "Use RVC instructions")               \
+  product(bool, UseRVV, false, DIAGNOSTIC, "Use RVV instructions")               \
+  product(bool, UseZba, false, DIAGNOSTIC, "Use Zba instructions")               \
+  product(bool, UseZbb, false, DIAGNOSTIC, "Use Zbb instructions")               \
+  product(bool, UseZbs, false, DIAGNOSTIC, "Use Zbs instructions")               \
+  product(bool, UseZfh, false, DIAGNOSTIC, "Use Zfh instructions")               \
   product(bool, UseZacas, false, EXPERIMENTAL, "Use Zacas instructions")         \
   product(bool, UseZcb, false, EXPERIMENTAL, "Use Zcb instructions")             \
   product(bool, UseZic64b, false, EXPERIMENTAL, "Use Zic64b instructions")       \
@@ -114,7 +114,7 @@ define_pd_global(intx, InlineSmallCode,          1000);
           "Use Zihintpause instructions")                                        \
   product(bool, UseZtso, false, EXPERIMENTAL, "Assume Ztso memory model")        \
   product(bool, UseZvbb, false, EXPERIMENTAL, "Use Zvbb instructions")           \
-  product(bool, UseZvfh, false, "Use Zvfh instructions")                         \
+  product(bool, UseZvfh, false, DIAGNOSTIC, "Use Zvfh instructions")             \
   product(bool, UseZvkn, false, EXPERIMENTAL,                                    \
           "Use Zvkn group extension, Zvkned, Zvknhb, Zvkb, Zvkt")                \
   product(bool, UseRVVForBigIntegerShiftIntrinsics, true,                        \