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Diffstat (limited to 'lib/Target/XCore/XCoreTargetTransformInfo.cpp')
-rw-r--r-- | lib/Target/XCore/XCoreTargetTransformInfo.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/lib/Target/XCore/XCoreTargetTransformInfo.cpp b/lib/Target/XCore/XCoreTargetTransformInfo.cpp new file mode 100644 index 0000000..cc165f7 --- /dev/null +++ b/lib/Target/XCore/XCoreTargetTransformInfo.cpp @@ -0,0 +1,83 @@ +//===-- XCoreTargetTransformInfo.cpp - XCore specific TTI pass ----------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +/// \file +/// This file implements a TargetTransformInfo analysis pass specific to the +/// XCore target machine. It uses the target's detailed information to provide +/// more precise answers to certain TTI queries, while letting the target +/// independent and default TTI implementations handle the rest. +/// +//===----------------------------------------------------------------------===// + +#define DEBUG_TYPE "xcoretti" +#include "XCore.h" +#include "llvm/Analysis/TargetTransformInfo.h" +#include "llvm/Support/Debug.h" +#include "llvm/Target/TargetLowering.h" +#include "llvm/Target/CostTable.h" +using namespace llvm; + +// Declare the pass initialization routine locally as target-specific passes +// don't havve a target-wide initialization entry point, and so we rely on the +// pass constructor initialization. +namespace llvm { +void initializeXCoreTTIPass(PassRegistry &); +} + +namespace { + +class XCoreTTI : public ImmutablePass, public TargetTransformInfo { +public: + XCoreTTI() : ImmutablePass(ID) { + llvm_unreachable("This pass cannot be directly constructed"); + } + + XCoreTTI(const XCoreTargetMachine *TM) + : ImmutablePass(ID) { + initializeXCoreTTIPass(*PassRegistry::getPassRegistry()); + } + + virtual void initializePass() { + pushTTIStack(this); + } + + virtual void finalizePass() { + popTTIStack(); + } + + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + TargetTransformInfo::getAnalysisUsage(AU); + } + + static char ID; + + virtual void *getAdjustedAnalysisPointer(const void *ID) { + if (ID == &TargetTransformInfo::ID) + return (TargetTransformInfo*)this; + return this; + } + + unsigned getNumberOfRegisters(bool Vector) const { + if (Vector) { + return 0; + } + return 12; + } +}; + +} // end anonymous namespace + +INITIALIZE_AG_PASS(XCoreTTI, TargetTransformInfo, "xcoretti", + "XCore Target Transform Info", true, true, false) +char XCoreTTI::ID = 0; + + +ImmutablePass * +llvm::createXCoreTargetTransformInfoPass(const XCoreTargetMachine *TM) { + return new XCoreTTI(TM); +} |