From 18c7f80b3e83ab584bd8572695a3cde8bafd9d3c Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sun, 5 Feb 2012 02:29:43 +0000
Subject: reapply the patches reverted in r149470 that reenable
 ConstantDataArray, but with a critical fix to the SelectionDAG code that
 optimizes copies from strings into immediate stores: the previous code was
 stopping reading string data at the first nul.  Address this by adding a new
 argument to llvm::getConstantStringInfo, preserving the behavior before the
 patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149800 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/AsmWriter.cpp | 29 ++++++++++-------------------
 1 file changed, 10 insertions(+), 19 deletions(-)

(limited to 'lib/VMCore/AsmWriter.cpp')

diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 381577783f..7bec783b0d 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -827,30 +827,21 @@ static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
   }
 
   if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
-    // As a special case, print the array as a string if it is an array of
-    // i8 with ConstantInt values.
-    //
     Type *ETy = CA->getType()->getElementType();
-    if (CA->isString()) {
-      Out << "c\"";
-      PrintEscapedString(CA->getAsString(), Out);
-      Out << '"';
-    } else {                // Cannot output in string format...
-      Out << '[';
+    Out << '[';
+    TypePrinter.print(ETy, Out);
+    Out << ' ';
+    WriteAsOperandInternal(Out, CA->getOperand(0),
+                           &TypePrinter, Machine,
+                           Context);
+    for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
+      Out << ", ";
       TypePrinter.print(ETy, Out);
       Out << ' ';
-      WriteAsOperandInternal(Out, CA->getOperand(0),
-                             &TypePrinter, Machine,
+      WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine,
                              Context);
-      for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
-        Out << ", ";
-        TypePrinter.print(ETy, Out);
-        Out << ' ';
-        WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine,
-                               Context);
-      }
-      Out << ']';
     }
+    Out << ']';
     return;
   }
   
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