Rebased PNaCl localmods in LLVM to 223109

test/NaCl/PNaClABI/abi-metadata.ll

+; RUN: not pnacl-abicheck < %s | FileCheck %s
+; RUN: not pnacl-abicheck -pnaclabi-allow-debug-metadata < %s | FileCheck %s --check-prefix=DEBUG
+
+
+; Metadata is not part of the PNaCl's stable ABI, so normally the ABI
+; checker rejects metadata entirely.  However, for debugging support,
+; pre-finalized pexes may contain metadata.  When checking a
+; pre-finalized pexe, the ABI checker does not check the types in the
+; metadata.
+
+; DEBUG-NOT: Named metadata node llvm.dbg.cu is disallowed
+; CHECK: Named metadata node llvm.dbg.cu is disallowed
+!llvm.dbg.cu = !{!0}
+!0 = metadata !{ half 0.0}
+
+; A debuginfo version must always be specified.
+; DEBUG-NOT: ignoring debug info with an invalid version
+; CHECK-NOT: ignoring debug info with an invalid version
+; DEBUG-NOT: Named metadata node llvm.module.flags is disallowed
+; CHECK: Named metadata node llvm.module.flags is disallowed
+!llvm.module.flags = !{!1}
+!1 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
+
+; CHECK: Named metadata node madeup is disallowed
+; DEBUG: Named metadata node madeup is disallowed
+!madeup = !{!2}
+!2 = metadata !{ half 1.0}