available_externall linkage is not local, this was confusing the codegenerator,
and it wasn't generating calls through @PLT for these functions.
hasLocalLinkage() is now false for available_externally,
I attempted to fix the inliner and dce to handle available_externally properly.
It passed make check.
llvm-svn: 72328
diff --git a/llvm/lib/Transforms/Utils/InlineCost.cpp b/llvm/lib/Transforms/Utils/InlineCost.cpp
index c9eb0ea..87aff01 100644
--- a/llvm/lib/Transforms/Utils/InlineCost.cpp
+++ b/llvm/lib/Transforms/Utils/InlineCost.cpp
@@ -189,7 +189,8 @@
// If there is only one call of the function, and it has internal linkage,
// make it almost guaranteed to be inlined.
//
- if (Callee->hasLocalLinkage() && Callee->hasOneUse())
+ if ((Callee->hasLocalLinkage() || Callee->hasAvailableExternallyLinkage()) &&
+ Callee->hasOneUse())
InlineCost -= 15000;
// If this function uses the coldcc calling convention, prefer not to inline