From: Mehdi Amini <mehdi.amini@apple.com>
Date: Sat, 17 Sep 2016 05:33:58 +0000 (+0000)
Subject: MIR Parser: issue an error when the Context discard value names.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5f16c76bd093c64fa876d43b450597560735acbe;p=llvm

MIR Parser: issue an error when the Context discard value names.

This is in line with the LLParser behavior

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281811 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/MIRParser/MIRParser.cpp b/lib/CodeGen/MIRParser/MIRParser.cpp
index 104d7d18812..35614d3b77b 100644
--- a/lib/CodeGen/MIRParser/MIRParser.cpp
+++ b/lib/CodeGen/MIRParser/MIRParser.cpp
@@ -828,6 +828,14 @@ std::unique_ptr<MIRParser> llvm::createMIRParserFromFile(StringRef Filename,
 std::unique_ptr<MIRParser>
 llvm::createMIRParser(std::unique_ptr<MemoryBuffer> Contents,
                       LLVMContext &Context) {
+  if (Context.shouldDiscardValueNames()) {
+    Context.diagnose(DiagnosticInfoMIRParser(
+        DS_Error,
+        SMDiagnostic(
+            Filename, SourceMgr::DK_Error,
+            "Can't read MIR with a Context that discards named Values")));
+    return nullptr;
+  }
   auto Filename = Contents->getBufferIdentifier();
   return llvm::make_unique<MIRParser>(
       llvm::make_unique<MIRParserImpl>(std::move(Contents), Filename, Context));