[llvm] r341974 - Add some context to fatal verifier errors

[Xin Tong via llvm-commits]

Author: trentxintong
Date: Tue Sep 11 11:06:03 2018
New Revision: 341974

URL: http://llvm.org/viewvc/llvm-project?rev=341974&view=rev
Log:
Add some context to fatal verifier errors

Summary: Add function name when verification fails as an initial breadcrumb for debugging.

Patch by David Callahan.

Reviewers: mehdi_amini, modocache

Reviewed By: modocache

Subscribers: llvm-commits, modocache

Differential Revision: https://reviews.llvm.org/D51386

Modified:
    llvm/trunk/lib/IR/Verifier.cpp

Modified: llvm/trunk/lib/IR/Verifier.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Verifier.cpp?rev=341974&r1=341973&r2=341974&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Verifier.cpp (original)
+++ llvm/trunk/lib/IR/Verifier.cpp Tue Sep 11 11:06:03 2018
@@ -4730,9 +4730,10 @@ struct VerifierLegacyPass : public Funct
   }
 
   bool runOnFunction(Function &F) override {
-    if (!V->verify(F) && FatalErrors)
+    if (!V->verify(F) && FatalErrors) {
+      errs() << "in function " << F.getName() << '\n'; 
       report_fatal_error("Broken function found, compilation aborted!");
-
+    }
     return false;
   }