1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
index 060b1dd..59798b3 100644
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -2097,6 +2097,11 @@ Value *TargetLoweringBase::getSDagStackGuard(const Module &M) const {
 }
 
 Function *TargetLoweringBase::getSSPStackGuardCheck(const Module &M) const {
+  // MSVC CRT has a function to validate security cookie.
+  RTLIB::LibcallImpl SecurityCheckCookieLibcall =
+      getLibcallImpl(RTLIB::SECURITY_CHECK_COOKIE);
+  if (SecurityCheckCookieLibcall != RTLIB::Unsupported)
+    return M.getFunction(getLibcallImplName(SecurityCheckCookieLibcall));
   return nullptr;
 }