Move the TLSModel information into the TargetMachine rather than hiding
in TargetLowering. There was already a FIXME about this location being
odd. The interface is simplified as a consequence. This will also make
it easier to change TLS models when compiling with PIE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154292 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index 6eae385..b8e7f15 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -11,6 +11,7 @@
//
//===----------------------------------------------------------------------===//
+#include "llvm/GlobalValue.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeGenInfo.h"
#include "llvm/Target/TargetMachine.h"
@@ -74,6 +75,26 @@
return CodeGenInfo->getCodeModel();
}
+TLSModel::Model TargetMachine::getTLSModel(const GlobalValue *GV) const {
+ bool isLocal = GV->hasLocalLinkage();
+ bool isDeclaration = GV->isDeclaration();
+ // FIXME: what should we do for protected and internal visibility?
+ // For variables, is internal different from hidden?
+ bool isHidden = GV->hasHiddenVisibility();
+
+ if (getRelocationModel() == Reloc::PIC_) {
+ if (isLocal || isHidden)
+ return TLSModel::LocalDynamic;
+ else
+ return TLSModel::GeneralDynamic;
+ } else {
+ if (!isDeclaration || isHidden)
+ return TLSModel::LocalExec;
+ else
+ return TLSModel::InitialExec;
+ }
+}
+
/// getOptLevel - Returns the optimization level: None, Less,
/// Default, or Aggressive.
CodeGenOpt::Level TargetMachine::getOptLevel() const {