From d59ae907eea28285ece6696d6f3271b4ca578c0d Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 26 Jan 2012 02:32:04 +0000
Subject: Continue improving support for ConstantDataAggregate, and use the new
 methods recently added to (sometimes greatly!) simplify code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149024 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/AsmWriter.cpp | 47 ++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 38 insertions(+), 9 deletions(-)

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

diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 0eb45c53f8..4d5e7a5391 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -855,6 +855,37 @@ static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
     }
     return;
   }
+  
+  if (const ConstantDataArray *CA = dyn_cast<ConstantDataArray>(CV)) {
+    // As a special case, print the array as a string if it is an array of
+    // i8 with ConstantInt values.
+    if (CA->isString()) {
+      Out << "c\"";
+      PrintEscapedString(CA->getAsString(), Out);
+      Out << '"';
+      return;
+    }
+
+    Type *ETy = CA->getType()->getElementType();
+    Out << '[';
+    if (CA->getNumOperands()) {
+      TypePrinter.print(ETy, Out);
+      Out << ' ';
+      WriteAsOperandInternal(Out, CA->getElementAsConstant(0),
+                             &TypePrinter, Machine,
+                             Context);
+      for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
+        Out << ", ";
+        TypePrinter.print(ETy, Out);
+        Out << ' ';
+        WriteAsOperandInternal(Out, CA->getElementAsConstant(i), &TypePrinter,
+                               Machine, Context);
+      }
+      Out << ']';
+    }
+    return;
+  }
+
 
   if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
     if (CS->getType()->isPacked())
@@ -886,21 +917,19 @@ static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
     return;
   }
 
-  if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
-    Type *ETy = CP->getType()->getElementType();
-    assert(CP->getNumOperands() > 0 &&
-           "Number of operands for a PackedConst must be > 0");
+  if (isa<ConstantVector>(CV) || isa<ConstantDataVector>(CV)) {
+    Type *ETy = CV->getType()->getVectorElementType();
     Out << '<';
     TypePrinter.print(ETy, Out);
     Out << ' ';
-    WriteAsOperandInternal(Out, CP->getOperand(0), &TypePrinter, Machine,
-                           Context);
-    for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
+    WriteAsOperandInternal(Out, CV->getAggregateElement(0U), &TypePrinter,
+                           Machine, Context);
+    for (unsigned i = 1, e = CV->getType()->getVectorNumElements(); i != e;++i){
       Out << ", ";
       TypePrinter.print(ETy, Out);
       Out << ' ';
-      WriteAsOperandInternal(Out, CP->getOperand(i), &TypePrinter, Machine,
-                             Context);
+      WriteAsOperandInternal(Out, CV->getAggregateElement(i), &TypePrinter,
+                             Machine, Context);
     }
     Out << '>';
     return;
-- 
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