From 9283a09c1837b1822c542d739d6aa810330f5f8e Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <peter@pcc.me.uk>
Date: Mon, 12 Jun 2017 20:10:48 +0000
Subject: IR: Replace the "Linker Options" module flag with
 "llvm.linker.options" named metadata.

The new metadata is easier to manipulate than module flags.

Differential Revision: https://reviews.llvm.org/D31349

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305227 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Bitcode/Reader/BitcodeReader.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'lib/Bitcode')

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 95987fac74e..bfa73071c14 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -2608,6 +2608,16 @@ Error BitcodeReader::materializeMetadata() {
     if (Error Err = MDLoader->parseModuleMetadata())
       return Err;
   }
+
+  // Upgrade "Linker Options" module flag to "llvm.linker.options" module-level
+  // metadata.
+  if (Metadata *Val = TheModule->getModuleFlag("Linker Options")) {
+    NamedMDNode *LinkerOpts =
+        TheModule->getOrInsertNamedMetadata("llvm.linker.options");
+    for (const MDOperand &MDOptions : cast<MDNode>(Val)->operands())
+      LinkerOpts->addOperand(cast<MDNode>(MDOptions));
+  }
+
   DeferredMetadataInfo.clear();
   return Error::success();
 }
-- 
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