Revert r295861, "[ModuleSummaryAnalysis] Don't crash when referencing unnamed globals."

We should always expect values to be named before running the module summary
analysis (see NameAnonGlobals pass), so it's fine if we crash in that case.

llvm-svn: 301991

lib/Analysis/ModuleSummaryAnalysis.cpp

@@ -451,12 +451,6 @@ ModuleSummaryIndex llvm::buildModuleSummaryIndex(
     auto &Summary = GlobalList.second[0];
     bool AllRefsCanBeExternallyReferenced =
         llvm::all_of(Summary->refs(), [&](const ValueInfo &VI) {
-          // If a global value definition references an unnamed global,
-          // be conservative. They're valid IR so we don't want to crash
-          // when we encounter any of them but they're infrequent enough
-          // that we don't bother optimizing them.
-          if (!VI.getValue()->hasName())
-            return false;
           return !CantBePromoted.count(VI.getValue()->getGUID());
         });
     if (!AllRefsCanBeExternallyReferenced) {

test/Transforms/FunctionImport/unnamed-globals.ll

@@ -1,10 +0,0 @@
-; Make sure we don't crash when referencing an unnamed global.
-; RUN: opt %s -module-summary-analysis -S
-
-@0 = external global [1 x { i64 }]
-
-define internal void @tinkywinky() {
-  call void @patatino(i64 ptrtoint ([1 x { i64 }]* @0 to i64), i64 4)
-  ret void
-}
-declare void @patatino(i64, i64)