[llvm-commits] CVS: llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp

[Evan Cheng]

Changes in directory llvm/lib/Target/PowerPC:

PPCAsmPrinter.cpp updated: 1.212 -> 1.213
---
Log message:

A initialized global variable cannot be extern weak. However, if a global value's initializer is itself a external weak symbol, emit the weak reference.

---
Diffs of the changes:  (+10 -0)

 PPCAsmPrinter.cpp |   10 ++++++++++
 1 files changed, 10 insertions(+)


Index: llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
diff -u llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp:1.212 llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp:1.213
--- llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp:1.212	Fri Dec  1 01:56:37 2006
+++ llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp	Fri Dec  1 03:13:26 2006
@@ -605,6 +605,9 @@
     } else {
       switch (I->getLinkage()) {
       case GlobalValue::LinkOnceLinkage:
+      case GlobalValue::ExternalWeakLinkage:
+        O << "\t.weak_reference " << name << "\n";
+        break;
       case GlobalValue::WeakLinkage:
         O << "\t.globl " << name << '\n'
           << "\t.weak_definition " << name << '\n';
@@ -635,6 +638,13 @@
 
       EmitAlignment(Align, I);
       O << name << ":\t\t\t\t; '" << I->getName() << "'\n";
+
+      // If the initializer is a extern weak symbol, remember to emit the weak
+      // reference!
+      if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
+        if (GV->hasExternalWeakLinkage())
+          ExtWeakSymbols.insert(Mang->getValueName(GV));
+
       EmitGlobalConstant(C);
       O << '\n';
     }