[llvm-commits] CVS: llvm/lib/Transforms/IPO/Internalize.cpp

[Chris Lattner]

Changes in directory llvm/lib/Transforms/IPO:

Internalize.cpp updated: 1.16 -> 1.17

---
Log message:

When internalizing global ctor/dtor list, also mark it constant.  This is gross, but 
until DSA is working all of the time and is totally reliable, we do this.


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Diffs of the changes:

Index: llvm/lib/Transforms/IPO/Internalize.cpp
diff -u llvm/lib/Transforms/IPO/Internalize.cpp:1.16 llvm/lib/Transforms/IPO/Internalize.cpp:1.17
--- llvm/lib/Transforms/IPO/Internalize.cpp:1.16	Thu May 22 15:27:13 2003
+++ llvm/lib/Transforms/IPO/Internalize.cpp	Thu Jun 26 00:30:40 2003
@@ -87,6 +87,14 @@
       for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I)
         if (!I->isExternal() && !I->hasInternalLinkage() &&
             !ExternalNames.count(I->getName())) {
+          // Special case handling of the global ctor and dtor list.  When we
+          // internalize it, we mark it constant, which allows elimination of
+          // the list if it's empty.
+          //
+          if (I->hasAppendingLinkage() && (I->getName() == "llvm.global_ctors"||
+                                           I->getName() == "llvm.global_dtors"))
+            I->setConstant(true);
+
           I->setLinkage(GlobalValue::InternalLinkage);
           Changed = true;
           ++NumGlobals;