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| author | Dan Gohman <djg@cray.com> | 2007-07-18 16:29:46 +0000 |
|---|---|---|
| committer | Dan Gohman <djg@cray.com> | 2007-07-18 16:29:46 +0000 |
| commit | f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc (patch) | |
| tree | ebb79ea1ee5e3bc1fdf38541a811a8b804f0679a /lib/Target/Mips/MipsTargetMachine.cpp | |
| download | external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.zip external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.tar.gz external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.tar.bz2 | |
It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MipsTargetMachine.cpp')
| -rw-r--r-- | lib/Target/Mips/MipsTargetMachine.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsTargetMachine.cpp b/lib/Target/Mips/MipsTargetMachine.cpp new file mode 100644 index 0000000..7fdba30 --- /dev/null +++ b/lib/Target/Mips/MipsTargetMachine.cpp @@ -0,0 +1,83 @@ +//===-- MipsTargetMachine.cpp - Define TargetMachine for Mips -------------===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by Bruno Cardoso Lopes and is distributed under the +// University of Illinois Open Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Implements the info about Mips target spec. +// +//===----------------------------------------------------------------------===// + +#include "Mips.h" +#include "MipsTargetAsmInfo.h" +#include "MipsTargetMachine.h" +#include "llvm/Module.h" +#include "llvm/PassManager.h" +#include "llvm/Target/TargetMachineRegistry.h" +using namespace llvm; + +namespace { + // Register the target. + RegisterTarget<MipsTargetMachine> X("mips", " Mips"); +} + +const TargetAsmInfo *MipsTargetMachine:: +createTargetAsmInfo() const +{ + return new MipsTargetAsmInfo(*this); +} + +// DataLayout --> Big-endian, 32-bit pointer/ABI/alignment +// +// FrameInfo --> StackGrowsDown, 8 bytes aligned, +// LOA : 0 +MipsTargetMachine:: +MipsTargetMachine(const Module &M, const std::string &FS): + Subtarget(*this, M, FS), DataLayout("E-p:32:32:32"), + InstrInfo(*this), FrameInfo(TargetFrameInfo::StackGrowsDown, 8, 0), + TLInfo(*this) {} + +// return 0 and must specify -march to gen MIPS code. +unsigned MipsTargetMachine:: +getModuleMatchQuality(const Module &M) +{ + // We strongly match "mips-*". + std::string TT = M.getTargetTriple(); + if (TT.size() >= 5 && std::string(TT.begin(), TT.begin()+5) == "mips-") + return 20; + + return 0; +} + +// Install an instruction selector pass using +// the ISelDag to gen Mips code. +bool MipsTargetMachine:: +addInstSelector(FunctionPassManager &PM, bool Fast) +{ + PM.add(createMipsISelDag(*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. +// TODO: Delay slot must be implemented here. +bool MipsTargetMachine:: +addPreEmitPass(FunctionPassManager &PM, bool Fast) +{ + return false; +} + +// Implements the AssemblyEmitter for the target. Must return +// true if AssemblyEmitter is supported +bool MipsTargetMachine:: +addAssemblyEmitter(FunctionPassManager &PM, bool Fast, + std::ostream &Out) +{ + // Output assembly language. + PM.add(createMipsCodePrinterPass(Out, *this)); + return false; +} |