Pretty print large struct constants.

llvm-svn: 26400

1 files changed, 10 insertions, 1 deletions

diff --git a/llvm/lib/VMCore/AsmWriter.cpp b/llvm/lib/VMCore/AsmWriter.cpp
index cf9af3f7150..a3ab22c04c9 100644
--- a/llvm/lib/VMCore/AsmWriter.cpp
+++ b/llvm/lib/VMCore/AsmWriter.cpp
@@ -419,6 +419,8 @@ static void WriteConstantInt(std::ostream &Out, const Constant *CV,
                              bool PrintName,
                              std::map<const Type *, std::string> &TypeTable,
                              SlotMachine *Machine) {
+  const int IndentSize = 4;
+  static std::string Indent = "\n";
   if (const ConstantBool *CB = dyn_cast<ConstantBool>(CV)) {
     Out << (CB == ConstantBool::True ? "true" : "false");
   } else if (const ConstantSInt *CI = dyn_cast<ConstantSInt>(CV)) {
@@ -484,7 +486,12 @@ static void WriteConstantInt(std::ostream &Out, const Constant *CV,
     Out << '{';
     unsigned N = CS->getNumOperands();
     if (N) {
-      Out << ' ';
+      if (N > 2) {
+        Indent += std::string(IndentSize, ' ');
+        Out << Indent;
+      } else {
+        Out << ' ';
+      }
       printTypeInt(Out, CS->getOperand(0)->getType(), TypeTable);
 
       WriteAsOperandInternal(Out, CS->getOperand(0),
@@ -492,11 +499,13 @@ static void WriteConstantInt(std::ostream &Out, const Constant *CV,
 
       for (unsigned i = 1; i < N; i++) {
         Out << ", ";
+        if (N > 2) Out << Indent;
         printTypeInt(Out, CS->getOperand(i)->getType(), TypeTable);
 
         WriteAsOperandInternal(Out, CS->getOperand(i),
                                PrintName, TypeTable, Machine);
       }
+      if (N > 2) Indent.resize(Indent.size() - IndentSize);
     }
  
     Out << " }";