Main CellSPU backend files checked in. Intrinsics and autoconf files

remain.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44595 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 87 insertions, 0 deletions

diff --git a/lib/Target/CellSPU/SPUTargetMachine.cpp b/lib/Target/CellSPU/SPUTargetMachine.cpp
new file mode 100644
index 0000000000..068fd00348
--- /dev/null
+++ b/lib/Target/CellSPU/SPUTargetMachine.cpp
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+//===-- SPUTargetMachine.cpp - Define TargetMachine for Cell SPU ----------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by a team from the Computer Systems Research
+// Department at The Aerospace Corporation.
+//
+// See README.txt for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Top-level implementation for the Cell SPU target.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SPU.h"
+#include "SPURegisterNames.h"
+#include "SPUTargetAsmInfo.h"
+#include "SPUTargetMachine.h"
+#include "llvm/Module.h"
+#include "llvm/PassManager.h"
+#include "llvm/Target/TargetMachineRegistry.h"
+
+using namespace llvm;
+
+namespace {
+  // Register the targets
+  RegisterTarget<SPUTargetMachine>
+  CELLSPU("cellspu", "  STI CBEA Cell SPU");
+}
+
+const std::pair<unsigned, int> *
+SPUFrameInfo::getCalleeSaveSpillSlots(unsigned &NumEntries) const {
+  NumEntries = 1;
+  return &LR[0];
+}
+
+const TargetAsmInfo *
+SPUTargetMachine::createTargetAsmInfo() const
+{
+  return new SPUTargetAsmInfo(*this);
+}
+
+unsigned
+SPUTargetMachine::getModuleMatchQuality(const Module &M)
+{
+  // We strongly match "spu-*" or "cellspu-*".
+  std::string TT = M.getTargetTriple();
+  if ((TT.size() == 3 && std::string(TT.begin(), TT.begin()+3) == "spu")
+      || (TT.size() == 7 && std::string(TT.begin(), TT.begin()+7) == "cellspu")
+      || (TT.size() >= 4 && std::string(TT.begin(), TT.begin()+4) == "spu-")
+      || (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "cellspu-"))
+    return 20;
+  
+  return 0;			// No match at all...
+}
+
+SPUTargetMachine::SPUTargetMachine(const Module &M, const std::string &FS)
+  : Subtarget(*this, M, FS),
+    DataLayout(Subtarget.getTargetDataString()),
+    InstrInfo(*this),
+    FrameInfo(*this),
+    TLInfo(*this),
+    InstrItins(Subtarget.getInstrItineraryData())
+{
+  // For the time being, use static relocations, since there's really no
+  // support for PIC yet.
+  setRelocationModel(Reloc::Static);
+}
+
+//===----------------------------------------------------------------------===//
+// Pass Pipeline Configuration
+//===----------------------------------------------------------------------===//
+
+bool
+SPUTargetMachine::addInstSelector(FunctionPassManager &PM, bool Fast)
+{
+  // Install an instruction selector.
+  PM.add(createSPUISelDag(*this));
+  return false;
+}
+
+bool SPUTargetMachine::addAssemblyEmitter(FunctionPassManager &PM, bool Fast, 
+                                          std::ostream &Out) {
+  PM.add(createSPUAsmPrinterPass(Out, *this));
+  return false;
+}