[RISCV] Add the RISCV target and compiler driver
As RV64 codegen has not yet been upstreamed into LLVM, we focus on RV32 driver
support (RV64 to follow).
Differential Revision: https://reviews.llvm.org/D39963
llvm-svn: 322276
diff --git a/clang/test/Driver/riscv-features.c b/clang/test/Driver/riscv-features.c
new file mode 100644
index 0000000..565596c
--- /dev/null
+++ b/clang/test/Driver/riscv-features.c
@@ -0,0 +1,4 @@
+// RUN: %clang -target riscv32-unknown-elf -### %s -fsyntax-only 2>&1 | FileCheck %s
+// RUN: %clang -target riscv64-unknown-elf -### %s -fsyntax-only 2>&1 | FileCheck %s
+
+// CHECK: fno-signed-char