Try to fix bot build failure

llvm-svn: 340296
diff --git a/llvm/lib/Support/TargetParser.cpp b/llvm/lib/Support/TargetParser.cpp
index b3ccb10..20aae02f 100644
--- a/llvm/lib/Support/TargetParser.cpp
+++ b/llvm/lib/Support/TargetParser.cpp
@@ -1027,7 +1027,7 @@
 
 static const GPUInfo *getArchEntry(AMDGPU::GPUKind AK,
                                    ArrayRef<GPUInfo> Table) {
-  GPUInfo Search = { "", "", AK, AMDGPU::FEATURE_NONE };
+  GPUInfo Search = { {""}, {""}, AK, AMDGPU::FEATURE_NONE };
 
   auto I = std::lower_bound(Table.begin(), Table.end(), Search,
     [](const GPUInfo &A, const GPUInfo &B) {