[RISCV] Add missed test case for r314770

Differential Revision: https://reviews.llvm.org/D38311
Patch by https://reviews.llvm.org/D38311

llvm-svn: 314771

llvm/test/Object/RISCV/elf-flags.yaml

@@ -0,0 +1,17 @@
+# RUN: yaml2obj %s > %t
+# RUN: obj2yaml %t | FileCheck -check-prefix=YAML %s
+
+# YAML:      FileHeader:
+# YAML-NEXT:   Class:           ELFCLASS32
+# YAML-NEXT:   Data:            ELFDATA2LSB
+# YAML-NEXT:   Type:            ET_EXEC
+# YAML-NEXT:   Machine:         EM_RISCV
+# YAML-NEXT:   Flags:           [ EF_RISCV_RVC, EF_RISCV_FLOAT_ABI_DOUBLE, EF_RISCV_RVE ]
+
+--- !ELF
+FileHeader:
+  Class:           ELFCLASS32
+  Data:            ELFDATA2LSB
+  Type:            ET_EXEC
+  Machine:         EM_RISCV
+  Flags:           [ EF_RISCV_RVC, EF_RISCV_FLOAT_ABI_DOUBLE, EF_RISCV_RVE ]

llvm/test/Object/RISCV/lit.local.cfg

@@ -0,0 +1,2 @@
+if not 'RISCV' in config.root.targets:
+    config.unsupported = True