1 files changed, 47 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/SystemZ/SystemZSubtarget.cpp b/contrib/llvm/lib/Target/SystemZ/SystemZSubtarget.cpp
new file mode 100644
index 0000000..a8b5e1f
--- /dev/null
+++ b/contrib/llvm/lib/Target/SystemZ/SystemZSubtarget.cpp
@@ -0,0 +1,47 @@
+//===- SystemZSubtarget.cpp - SystemZ Subtarget Information -------*- C++ -*-=//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the SystemZ specific subclass of TargetSubtarget.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SystemZSubtarget.h"
+#include "SystemZ.h"
+#include "SystemZGenSubtarget.inc"
+#include "llvm/GlobalValue.h"
+#include "llvm/Target/TargetMachine.h"
+
+using namespace llvm;
+
+SystemZSubtarget::SystemZSubtarget(const std::string &TT, 
+                                   const std::string &FS):
+  HasZ10Insts(false) {
+  std::string CPU = "z9";
+
+  // Parse features string.
+  ParseSubtargetFeatures(FS, CPU);
+}
+
+/// True if accessing the GV requires an extra load.
+bool SystemZSubtarget::GVRequiresExtraLoad(const GlobalValue* GV,
+                                           const TargetMachine& TM,
+                                           bool isDirectCall) const {
+  if (TM.getRelocationModel() == Reloc::PIC_) {
+    // Extra load is needed for all externally visible.
+    if (isDirectCall)
+      return false;
+
+    if (GV->hasLocalLinkage() || GV->hasHiddenVisibility())
+      return false;
+
+    return true;
+  }
+
+  return false;
+}