Print out the connected components in the verifier after complaining about their

multiplicity.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117630 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp
index 352c01d91d..48597c25b3 100644
--- a/lib/CodeGen/MachineVerifier.cpp
+++ b/lib/CodeGen/MachineVerifier.cpp
@@ -1080,6 +1080,14 @@ void MachineVerifier::verifyLiveIntervals() {
       if (NumComp > 1) {
         report("Multiple connected components in live interval", MF);
         *OS << NumComp << " components in " << LI << '\n';
+        for (unsigned comp = 0; comp != NumComp; ++comp) {
+          *OS << comp << ": valnos";
+          for (LiveInterval::const_vni_iterator I = LI.vni_begin(),
+               E = LI.vni_end(); I!=E; ++I)
+            if (comp == ConEQ.getEqClass(*I))
+              *OS << ' ' << (*I)->id;
+          *OS << '\n';
+        }
       }
     }
   }