Merge commit '100fbdd06be7590b23c4707a98cd605bdb519498' into merge_20130612

1 files changed, 67 insertions, 0 deletions

diff --git a/lib/Target/SystemZ/SystemZTargetMachine.cpp b/lib/Target/SystemZ/SystemZTargetMachine.cpp
new file mode 100644
index 0000000..6e7540c
--- /dev/null
+++ b/lib/Target/SystemZ/SystemZTargetMachine.cpp
@@ -0,0 +1,67 @@
+//===-- SystemZTargetMachine.cpp - Define TargetMachine for SystemZ -------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SystemZTargetMachine.h"
+#include "llvm/CodeGen/Passes.h"
+#include "llvm/Support/TargetRegistry.h"
+
+using namespace llvm;
+
+extern "C" void LLVMInitializeSystemZTarget() {
+  // Register the target.
+  RegisterTargetMachine<SystemZTargetMachine> X(TheSystemZTarget);
+}
+
+SystemZTargetMachine::SystemZTargetMachine(const Target &T, StringRef TT,
+                                           StringRef CPU, StringRef FS,
+                                           const TargetOptions &Options,
+                                           Reloc::Model RM,
+                                           CodeModel::Model CM,
+                                           CodeGenOpt::Level OL)
+  : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
+    Subtarget(TT, CPU, FS),
+    // Make sure that global data has at least 16 bits of alignment by default,
+    // so that we can refer to it using LARL.  We don't have any special
+    // requirements for stack variables though.
+    DL("E-p:64:64:64-i1:8:16-i8:8:16-i16:16-i32:32-i64:64"
+       "-f32:32-f64:64-f128:64-a0:8:16-n32:64"),
+    InstrInfo(*this), TLInfo(*this), TSInfo(*this),
+    FrameLowering(*this, Subtarget) {
+  initAsmInfo();
+}
+
+namespace {
+/// SystemZ Code Generator Pass Configuration Options.
+class SystemZPassConfig : public TargetPassConfig {
+public:
+  SystemZPassConfig(SystemZTargetMachine *TM, PassManagerBase &PM)
+    : TargetPassConfig(TM, PM) {}
+
+  SystemZTargetMachine &getSystemZTargetMachine() const {
+    return getTM<SystemZTargetMachine>();
+  }
+
+  virtual bool addInstSelector() LLVM_OVERRIDE;
+  virtual bool addPreEmitPass() LLVM_OVERRIDE;
+};
+} // end anonymous namespace
+
+bool SystemZPassConfig::addInstSelector() {
+  addPass(createSystemZISelDag(getSystemZTargetMachine(), getOptLevel()));
+  return false;
+}
+
+bool SystemZPassConfig::addPreEmitPass() {
+  addPass(createSystemZLongBranchPass(getSystemZTargetMachine()));
+  return true;
+}
+
+TargetPassConfig *SystemZTargetMachine::createPassConfig(PassManagerBase &PM) {
+  return new SystemZPassConfig(this, PM);
+}