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Diffstat (limited to 'llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp')
-rw-r--r-- | llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp b/llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp new file mode 100644 index 00000000000..25c7fc0959e --- /dev/null +++ b/llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp @@ -0,0 +1,118 @@ +//===-- PowerPCTargetMachine.cpp - Define TargetMachine for PowerPC -------===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by the LLVM research group and is distributed under +// the University of Illinois Open Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// +//===----------------------------------------------------------------------===// + +#include "PowerPCTargetMachine.h" +#include "PowerPC.h" +#include "llvm/Module.h" +#include "llvm/PassManager.h" +#include "llvm/CodeGen/IntrinsicLowering.h" +#include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/Passes.h" +#include "llvm/Target/TargetOptions.h" +#include "llvm/Target/TargetMachineRegistry.h" +#include "llvm/Transforms/Scalar.h" +#include <iostream> +using namespace llvm; + +namespace { + // Register the target. + RegisterTarget<PowerPCTargetMachine> X("powerpc", " PowerPC (experimental)"); +} + +unsigned PowerPCTargetMachine::getJITMatchQuality() { +#if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER) + return 10; +#else + return 0; +#endif +} + +unsigned PowerPCTargetMachine::getModuleMatchQuality(const Module &M) { + if (M.getEndianness() == Module::BigEndian && + M.getPointerSize() == Module::Pointer32) + return 10; // Direct match + else if (M.getEndianness() != Module::AnyEndianness || + M.getPointerSize() != Module::AnyPointerSize) + return 0; // Match for some other target + + return getJITMatchQuality()/2; +} + + +/// PowerPCTargetMachine ctor - Create an ILP32 architecture model +/// +/// FIXME: Should double alignment be 8 bytes? Then we get a PtrAl != DoubleAl +/// abort +PowerPCTargetMachine::PowerPCTargetMachine(const Module &M, + IntrinsicLowering *IL) + : TargetMachine("PowerPC", IL, false, 4, 4, 4, 4, 4, 4, 4, 4), + FrameInfo(TargetFrameInfo::StackGrowsDown, 16, -4), JITInfo(*this) { +} + +/// addPassesToEmitAssembly - Add passes to the specified pass manager +/// to implement a static compiler for this target. +/// +bool PowerPCTargetMachine::addPassesToEmitAssembly(PassManager &PM, + std::ostream &Out) { + // FIXME: Implement efficient support for garbage collection intrinsics. + PM.add(createLowerGCPass()); + + // FIXME: Implement the invoke/unwind instructions! + PM.add(createLowerInvokePass()); + + // FIXME: Implement the switch instruction in the instruction selector! + PM.add(createLowerSwitchPass()); + + PM.add(createLowerConstantExpressionsPass()); + + // Make sure that no unreachable blocks are instruction selected. + PM.add(createUnreachableBlockEliminationPass()); + + PM.add(createPPCSimpleInstructionSelector(*this)); + + if (PrintMachineCode) + PM.add(createMachineFunctionPrinterPass(&std::cerr)); + + PM.add(createRegisterAllocator()); + + if (PrintMachineCode) + PM.add(createMachineFunctionPrinterPass(&std::cerr)); + + PM.add(createPrologEpilogCodeInserter()); + PM.add(createPPCCodePrinterPass(Out, *this)); + PM.add(createMachineCodeDeleter()); + return false; +} + +/// addPassesToJITCompile - Add passes to the specified pass manager to +/// implement a fast dynamic compiler for this target. +/// +void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) { + // FIXME: Implement efficient support for garbage collection intrinsics. + PM.add(createLowerGCPass()); + + // FIXME: Implement the invoke/unwind instructions! + PM.add(createLowerInvokePass()); + + // FIXME: Implement the switch instruction in the instruction selector! + PM.add(createLowerSwitchPass()); + + PM.add(createLowerConstantExpressionsPass()); + + // Make sure that no unreachable blocks are instruction selected. + PM.add(createUnreachableBlockEliminationPass()); + + PM.add(createPPCSimpleInstructionSelector(TM)); + PM.add(createRegisterAllocator()); + PM.add(createPrologEpilogCodeInserter()); +} + |