[Flang][RISCV] Emit target features for RISC-V
Fix the issue of .o file generated by `Flang`
with `Flags` info is 0x0 under RISC-V.
Reviewed By: awarzynski, kiranchandramohan
Differential Revision: https://reviews.llvm.org/D145883
diff --git a/flang/test/Driver/code-gen-rv64.f90 b/flang/test/Driver/code-gen-rv64.f90
new file mode 100644
index 0000000..69d08b2
--- /dev/null
+++ b/flang/test/Driver/code-gen-rv64.f90
@@ -0,0 +1,17 @@
+! Test -emit-obj (RISC-V 64)
+
+! REQUIRES: riscv-registered-target
+
+! RUN: rm -f %t.o
+! RUN: %flang_fc1 -triple riscv64-unknown-linux-gnu \
+! RUN: -target-feature +d -target-feature +c -emit-obj %s -o %t.o
+! RUN: llvm-readelf -h %t.o | FileCheck %s
+
+! RUN: rm -f %t.o
+! RUN: %flang --target=riscv64-unknown-linux-gnu -c %s -o %t.o
+! RUN: llvm-readelf -h %t.o | FileCheck %s
+
+! If Flang failed to emit target-feature info, then Flags will be 0x0.
+! 0x5 means set EF_RISCV_RVC (0x1) and EF_RISCV_FLOAT_ABI_DOUBLE (0x4)
+! CHECK: Flags: 0x5, RVC, double-float ABI
+end program
