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CPU, and feature string. Parsing some asm directives can change subtarget state (e.g. .code 16) and it must be reflected in other modules (e.g. MCCodeEmitter). That is, the MCSubtargetInfo instance must be shared. llvm-svn: 134795
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
//===- SparcSubtarget.cpp - SPARC Subtarget Information -------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the SPARC specific subclass of TargetSubtargetInfo.
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//
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//===----------------------------------------------------------------------===//
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#include "SparcSubtarget.h"
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#include "Sparc.h"
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#include "llvm/Target/TargetRegistry.h"
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#define GET_SUBTARGETINFO_ENUM
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#define GET_SUBTARGETINFO_MC_DESC
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#define GET_SUBTARGETINFO_TARGET_DESC
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#define GET_SUBTARGETINFO_CTOR
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#include "SparcGenSubtargetInfo.inc"
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using namespace llvm;
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SparcSubtarget::SparcSubtarget(const std::string &TT, const std::string &CPU,
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const std::string &FS, bool is64Bit) :
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SparcGenSubtargetInfo(TT, CPU, FS),
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IsV9(false),
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V8DeprecatedInsts(false),
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IsVIS(false),
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Is64Bit(is64Bit) {
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// Determine default and user specified characteristics
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std::string CPUName = CPU;
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if (CPUName.empty()) {
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if (is64Bit)
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CPUName = "v9";
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else
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CPUName = "v8";
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}
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IsV9 = CPUName == "v9";
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// Parse features string.
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ParseSubtargetFeatures(CPUName, FS);
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}
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MCSubtargetInfo *createSparcMCSubtargetInfo(StringRef TT, StringRef CPU,
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StringRef FS) {
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MCSubtargetInfo *X = new MCSubtargetInfo();
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InitSparcMCSubtargetInfo(X, CPU, FS);
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return X;
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}
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extern "C" void LLVMInitializeSparcMCSubtargetInfo() {
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TargetRegistry::RegisterMCSubtargetInfo(TheSparcTarget,
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createSparcMCSubtargetInfo);
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}
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