[llvm] [SelectionDAG] Provide context for vector count / type mismatch (PR #175433)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/include/llvm/CodeGenTypes/MachineValueType.h llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp llvm/lib/CodeGen/ValueTypes.cpp --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index f4ae2f3cd..786a65119 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -769,7 +769,6 @@ static void getCopyToPartsVector(SelectionDAG &DAG, const SDLoc &DL,
                                    NumIntermediates, RegisterVT);
   }
 
-
   if (NumRegs != NumParts || RegisterVT != PartVT)
     report_fatal_error(Twine("Part count doesn't match vector breakdown! ")
                            .concat(Twine(NumRegs))
@@ -779,8 +778,7 @@ static void getCopyToPartsVector(SelectionDAG &DAG, const SDLoc &DL,
                            .concat(Twine(RegisterVT.getString()))
                            .concat(" RegisterVT, ")
                            .concat(Twine(PartVT.getString()))
-                           .concat(" PartVT")
-                         );
+                           .concat(" PartVT"));
 
   assert(IntermediateVT.isScalableVector() == ValueVT.isScalableVector() &&
          "Mixing scalable and fixed vectors when copying in parts");
diff --git a/llvm/lib/CodeGen/ValueTypes.cpp b/llvm/lib/CodeGen/ValueTypes.cpp
index 15dadfcf8..f3e4eaa2e 100644
--- a/llvm/lib/CodeGen/ValueTypes.cpp
+++ b/llvm/lib/CodeGen/ValueTypes.cpp
@@ -347,6 +347,4 @@ void MVT::dump() const {
 }
 #endif
 
-void MVT::print(raw_ostream &OS) const {
-  OS << getString();
-}
+void MVT::print(raw_ostream &OS) const { OS << getString(); }

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https://github.com/llvm/llvm-project/pull/175433