Doh. Must check if GV is constant first before putting it in .cstring.

llvm-svn: 31253
diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index bfea893..21c2f74 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -548,9 +548,9 @@
         O << "\t.globl " << name << "\n";
         // FALL THROUGH
       case GlobalValue::InternalLinkage:
-        if (TAI->getCStringSection()) {
+        if (I->isConstant()) {
           const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
-          if (CVA && CVA->isCString()) {
+          if (TAI->getCStringSection() && CVA && CVA->isCString()) {
             SwitchToDataSection(TAI->getCStringSection(), I);
             break;
           }