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

[Evan Cheng]

Changes in directory llvm/lib/Target/PowerPC:

PPCAsmPrinter.cpp updated: 1.211 -> 1.212
---
Log message:

Darwin PPC external weak linkage support.

---
Diffs of the changes:  (+15 -1)

 PPCAsmPrinter.cpp |   16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletion(-)


Index: llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
diff -u llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp:1.211 llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp:1.212
--- llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp:1.211	Tue Nov 28 12:21:52 2006
+++ llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp	Fri Dec  1 01:56:37 2006
@@ -52,6 +52,9 @@
     std::set<std::string> FnStubs, GVStubs;
     const PPCSubtarget &Subtarget;
     
+    // Necessary for external weak linkage support
+    std::set<std::string> ExtWeakSymbols;
+
     PPCAsmPrinter(std::ostream &O, TargetMachine &TM, const TargetAsmInfo *T)
       : AsmPrinter(O, TM, T), Subtarget(TM.getSubtarget<PPCSubtarget>()) {
     }
@@ -159,6 +162,8 @@
             std::string Name = Mang->getValueName(GV);
             FnStubs.insert(Name);
             O << "L" << Name << "$stub";
+            if (GV->hasExternalWeakLinkage())
+              ExtWeakSymbols.insert(Name);
             return;
           }
         }
@@ -330,8 +335,10 @@
         return;
       }
     }
-
     O << Name;
+    
+    if (GV->hasExternalWeakLinkage())
+      ExtWeakSymbols.insert(Name);
     return;
   }
 
@@ -633,6 +640,13 @@
     }
   }
 
+  if (ExtWeakSymbols.begin() != ExtWeakSymbols.end())
+    SwitchToDataSection("");
+  for (std::set<std::string>::iterator i = ExtWeakSymbols.begin(),
+       e = ExtWeakSymbols.end(); i != e; ++i) {
+    O << "\t.weak_reference " << *i << "\n";
+  }
+
   bool isPPC64 = TD->getPointerSizeInBits() == 64;
 
   // Output stubs for dynamically-linked functions