Update llvm to trunk r256633.

1 files changed, 11 insertions, 3 deletions

diff --git a/contrib/llvm/lib/Transforms/Utils/ModuleUtils.cpp b/contrib/llvm/lib/Transforms/Utils/ModuleUtils.cpp
index d69a81e..9ec28a3 100644
--- a/contrib/llvm/lib/Transforms/Utils/ModuleUtils.cpp
+++ b/contrib/llvm/lib/Transforms/Utils/ModuleUtils.cpp
@@ -43,9 +43,9 @@ static void appendToGlobalArray(const char *Array,
     }
     GVCtor->eraseFromParent();
   } else {
-    // Use a simple two-field struct if there isn't one already.
+    // Use the new three-field struct if there isn't one already.
     EltTy = StructType::get(IRB.getInt32Ty(), PointerType::getUnqual(FnTy),
-                            nullptr);
+                            IRB.getInt8PtrTy(), nullptr);
   }
 
   // Build a 2 or 3 field global_ctor entry.  We don't take a comdat key.
@@ -107,7 +107,8 @@ Function *llvm::checkSanitizerInterfaceFunction(Constant *FuncOrBitcast) {
 
 std::pair<Function *, Function *> llvm::createSanitizerCtorAndInitFunctions(
     Module &M, StringRef CtorName, StringRef InitName,
-    ArrayRef<Type *> InitArgTypes, ArrayRef<Value *> InitArgs) {
+    ArrayRef<Type *> InitArgTypes, ArrayRef<Value *> InitArgs,
+    StringRef VersionCheckName) {
   assert(!InitName.empty() && "Expected init function name");
   assert(InitArgTypes.size() == InitArgTypes.size() &&
          "Sanitizer's init function expects different number of arguments");
@@ -122,6 +123,13 @@ std::pair<Function *, Function *> llvm::createSanitizerCtorAndInitFunctions(
           AttributeSet()));
   InitFunction->setLinkage(Function::ExternalLinkage);
   IRB.CreateCall(InitFunction, InitArgs);
+  if (!VersionCheckName.empty()) {
+    Function *VersionCheckFunction =
+        checkSanitizerInterfaceFunction(M.getOrInsertFunction(
+            VersionCheckName, FunctionType::get(IRB.getVoidTy(), {}, false),
+            AttributeSet()));
+    IRB.CreateCall(VersionCheckFunction, {});
+  }
   return std::make_pair(Ctor, InitFunction);
 }