[PATCH] D100787: [globalisel][unittest] Better error reporting when unittests fail

[Daniel Sanders via Phabricator via llvm-commits]

dsanders created this revision.
dsanders added a reviewer: qcolombet.
Herald added a subscriber: rovka.
dsanders requested review of this revision.
Herald added a project: LLVM.

When CheckMachineFunction() fails, emit the full input it receives just like
FileCheck itself does.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D100787

Files:
  llvm/unittests/CodeGen/GlobalISel/GISelMITest.h


Index: llvm/unittests/CodeGen/GlobalISel/GISelMITest.h
===================================================================
--- llvm/unittests/CodeGen/GlobalISel/GISelMITest.h
+++ llvm/unittests/CodeGen/GlobalISel/GISelMITest.h
@@ -195,6 +195,10 @@
 
   auto OutBuffer = OutputBuf->getBuffer();
   SM.AddNewSourceBuffer(std::move(OutputBuf), SMLoc());
-  return FC.checkInput(SM, OutBuffer);
+  bool Result = FC.checkInput(SM, OutBuffer);
+  if (!Result)
+    errs() << "Full FileCheck input was:\n<<<<<<\n"
+           << OutBuffer << "\n>>>>>>\n";
+  return Result;
 }
 #endif


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