[llvm-commits] CVS: llvm/lib/VMCore/ConstantFolding.cpp

[Anton Korobeynikov]

Changes in directory llvm/lib/VMCore:

ConstantFolding.cpp updated: 1.100 -> 1.101
---
Log message:

Introducing external weak linkage. Darwin codegen should be added later.


---
Diffs of the changes:  (+2 -5)

 ConstantFolding.cpp |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)


Index: llvm/lib/VMCore/ConstantFolding.cpp
diff -u llvm/lib/VMCore/ConstantFolding.cpp:1.100 llvm/lib/VMCore/ConstantFolding.cpp:1.101
--- llvm/lib/VMCore/ConstantFolding.cpp:1.100	Sun Nov 26 19:05:10 2006
+++ llvm/lib/VMCore/ConstantFolding.cpp	Thu Nov 30 18:25:12 2006
@@ -894,11 +894,8 @@
 
   case Instruction::PtrToInt:
     // Cast of a global address to boolean is always true.
-    if (isa<GlobalValue>(V)) {
-      if (DestTy == Type::BoolTy)
-        // FIXME: When we support 'external weak' references, we have to 
-        // prevent this transformation from happening.  This code will need 
-        // to be updated to ignore external weak symbols when we support it.
+    if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
+      if (DestTy == Type::BoolTy && !GV->hasExternalWeakLinkage())
         return ConstantBool::getTrue();
     }
     break;