AMDGPU: Add builtin for s_dcache_inv_vol

llvm-svn: 339109
diff --git a/clang/lib/Basic/Targets/AMDGPU.cpp b/clang/lib/Basic/Targets/AMDGPU.cpp
index b6b9aa2..310c08a 100644
--- a/clang/lib/Basic/Targets/AMDGPU.cpp
+++ b/clang/lib/Basic/Targets/AMDGPU.cpp
@@ -148,12 +148,14 @@
       Features["16-bit-insts"] = true;
       Features["dpp"] = true;
       Features["s-memrealtime"] = true;
-      break;
+      LLVM_FALLTHROUGH;
     case GK_GFX704:
     case GK_GFX703:
     case GK_GFX702:
     case GK_GFX701:
     case GK_GFX700:
+      Features["ci-insts"] = true;
+      LLVM_FALLTHROUGH;
     case GK_GFX601:
     case GK_GFX600:
       break;