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Diffstat (limited to 'contrib/llvm/lib/Target/MBlaze/MBlazeTargetMachine.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/MBlaze/MBlazeTargetMachine.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/MBlaze/MBlazeTargetMachine.cpp b/contrib/llvm/lib/Target/MBlaze/MBlazeTargetMachine.cpp new file mode 100644 index 0000000..4252953 --- /dev/null +++ b/contrib/llvm/lib/Target/MBlaze/MBlazeTargetMachine.cpp @@ -0,0 +1,66 @@ +//===-- MBlazeTargetMachine.cpp - Define TargetMachine for MBlaze ---------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Implements the info about MBlaze target spec. +// +//===----------------------------------------------------------------------===// + +#include "MBlaze.h" +#include "MBlazeMCAsmInfo.h" +#include "MBlazeTargetMachine.h" +#include "llvm/PassManager.h" +#include "llvm/Target/TargetRegistry.h" +using namespace llvm; + +extern "C" void LLVMInitializeMBlazeTarget() { + // Register the target. + RegisterTargetMachine<MBlazeTargetMachine> X(TheMBlazeTarget); + RegisterAsmInfo<MBlazeMCAsmInfo> A(TheMBlazeTarget); +} + +// DataLayout --> Big-endian, 32-bit pointer/ABI/alignment +// The stack is always 8 byte aligned +// On function prologue, the stack is created by decrementing +// its pointer. Once decremented, all references are done with positive +// offset from the stack/frame pointer, using StackGrowsUp enables +// an easier handling. +MBlazeTargetMachine:: +MBlazeTargetMachine(const Target &T, const std::string &TT, + const std::string &FS): + LLVMTargetMachine(T, TT), + Subtarget(TT, FS), + DataLayout("E-p:32:32-i8:8:8-i16:16:16-i64:32:32-" + "f64:32:32-v64:32:32-v128:32:32-n32"), + InstrInfo(*this), + FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0), + TLInfo(*this), TSInfo(*this) { + if (getRelocationModel() == Reloc::Default) { + setRelocationModel(Reloc::Static); + } + + if (getCodeModel() == CodeModel::Default) + setCodeModel(CodeModel::Small); +} + +// Install an instruction selector pass using +// the ISelDag to gen MBlaze code. +bool MBlazeTargetMachine:: +addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel) { + PM.add(createMBlazeISelDag(*this)); + return false; +} + +// Implemented by targets that want to run passes immediately before +// machine code is emitted. return true if -print-machineinstrs should +// print out the code after the passes. +bool MBlazeTargetMachine:: +addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel) { + PM.add(createMBlazeDelaySlotFillerPass(*this)); + return true; +} |