[NFC] Add { } to silence compiler warning [-Wmissing-braces].

/local/mnt/workspace/huihuiz/llvm-comm-git-2/llvm-project/llvm/lib/Object/MachOObjectFile.cpp:2731:7: warning: suggest braces around initialization of subobject [-Wmissing-braces]
      "i386",   "x86_64", "x86_64h",  "armv4t",  "arm",    "armv5e",
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      {
1 warning generated.

/local/mnt/workspace/huihuiz/llvm-comm-git-2/llvm-project/llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp:355:46: warning: suggest braces around initialization of subobject [-Wmissing-braces]
    return addMappingFromTable<1>(MI, MRI, { 0 }, Table);
                                             ^
                                             {}
1 warning generated.

/local/mnt/workspace/huihuiz/llvm-comm-git-2/llvm-project/llvm/tools/llvm-objcopy/ELF/Object.cpp:400:57: warning: suggest braces around initialization of subobject [-Wmissing-braces]
static constexpr std::array<uint8_t, 4> ZlibGnuMagic = {'Z', 'L', 'I', 'B'};
                                                        ^~~~~~~~~~~~~~~~~~
                                                        {                 }
1 warning generated.

llvm-svn: 372811

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp
index fdba3442af2..c0c873f9735 100644
--- a/llvm/lib/Object/MachOObjectFile.cpp
+++ b/llvm/lib/Object/MachOObjectFile.cpp
@@ -2727,11 +2727,11 @@ bool MachOObjectFile::isValidArch(StringRef ArchFlag) {
 }
 
 ArrayRef<StringRef> MachOObjectFile::getValidArchs() {
-  static const std::array<StringRef, 17> validArchs = {
+  static const std::array<StringRef, 17> validArchs = {{
       "i386",   "x86_64", "x86_64h",  "armv4t",  "arm",    "armv5e",
       "armv6",  "armv6m", "armv7",    "armv7em", "armv7k", "armv7m",
       "armv7s", "arm64",  "arm64_32", "ppc",     "ppc64",
-  };
+  }};
 
   return validArchs;
 }