[RISCV] Mark TLS as supported

Inform Clang that TLS is implemented by LLVM for RISC-V

Differential Revision: https://reviews.llvm.org/D57055

llvm-svn: 363776

Author: lewis-revill

clang/lib/Basic/Targets/RISCV.h

@@ -35,7 +35,6 @@ class RISCVTargetInfo : public TargetInfo {
   RISCVTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
       : TargetInfo(Triple), HasM(false), HasA(false), HasF(false),
         HasD(false), HasC(false) {
-    TLSSupported = false;
     LongDoubleWidth = 128;
     LongDoubleAlign = 128;
     LongDoubleFormat = &llvm::APFloat::IEEEquad();

clang/test/CodeGen/thread-specifier.c

@@ -1,4 +1,6 @@
 // RUN: %clang_cc1 -triple i686-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple riscv32 -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple riscv64 -emit-llvm -o - %s | FileCheck %s
 
 // CHECK: @b = external thread_local global
 // CHECK: @d.e = internal thread_local global