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58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
//===- X86Subtarget.cpp - X86 Instruction Information -----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Nate Begeman and is distributed under the
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// University of Illinois Open Source 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 X86 specific subclass of TargetSubtarget.
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//
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//===----------------------------------------------------------------------===//
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#include "X86Subtarget.h"
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#include "llvm/Module.h"
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using namespace llvm;
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X86Subtarget::X86Subtarget(const Module &M)
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: TargetSubtarget(), stackAlignment(8),
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indirectExternAndWeakGlobals(false), asmDarwinLinkerStubs(false),
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asmLeadingUnderscore(false), asmAlignmentIsInBytes(false),
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asmPrintDotLocalConstants(false), asmPrintDotLCommConstants(false),
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asmPrintConstantAlignment(false) {
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// Declare a boolean for each major platform.
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bool forCygwin = false;
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bool forDarwin = false;
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bool forWindows = false;
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// Set the boolean corresponding to the current target triple, or the default
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// if one cannot be determined, to true.
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const std::string& TT = M.getTargetTriple();
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if (TT.length() > 5) {
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forCygwin = TT.find("cygwin") != std::string::npos ||
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TT.find("mingw") != std::string::npos;
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forDarwin = TT.find("darwin") != std::string::npos;
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forWindows = TT.find("win32") != std::string::npos;
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} else if (TT.empty()) {
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#if defined(__CYGWIN__) || defined(__MINGW32__)
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forCygwin = true;
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#elif defined(__APPLE__)
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forDarwin = true;
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#elif defined(_WIN32)
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forWindows = true;
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#endif
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}
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if (forCygwin) {
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asmLeadingUnderscore = true;
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} else if (forDarwin) {
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stackAlignment = 16;
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indirectExternAndWeakGlobals = true;
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asmDarwinLinkerStubs = true;
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asmLeadingUnderscore = true;
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asmPrintDotLCommConstants = true;
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} else if (forWindows) {
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}
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}
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