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https://github.com/c64scene-ar/llvm-6502.git
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3c304a3ba1
depending on the command line option. Now the command line option just sets the subtarget as appropriate. G5 opts will now default to on on G5-enabled nightly testers among other machines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22688 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
//===- PowerPCSubtarget.cpp - PPC Subtarget 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 PPC specific subclass of TargetSubtarget.
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//
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//===----------------------------------------------------------------------===//
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#include "PowerPCSubtarget.h"
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#include "PowerPC.h"
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#include "llvm/Module.h"
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#include "llvm/Support/CommandLine.h"
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using namespace llvm;
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PPCTargetEnum llvm::PPCTarget = TargetDefault;
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namespace llvm {
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cl::opt<PPCTargetEnum, true>
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PPCTargetArg(cl::desc("Force generation of code for a specific PPC target:"),
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cl::values(
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clEnumValN(TargetAIX, "aix", " Enable AIX codegen"),
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clEnumValN(TargetDarwin,"darwin"," Enable Darwin codegen"),
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clEnumValEnd),
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cl::location(PPCTarget), cl::init(TargetDefault));
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cl::opt<bool> EnableGPOPT("enable-gpopt", cl::Hidden,
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cl::desc("Enable optimizations for GP cpus"));
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}
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#if defined(__APPLE__)
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#include <mach/mach.h>
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#include <mach/mach_host.h>
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#include <mach/host_info.h>
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#include <mach/machine.h>
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static boolean_t IsGP() {
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host_basic_info_data_t hostInfo;
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mach_msg_type_number_t infoCount;
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infoCount = HOST_BASIC_INFO_COUNT;
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host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo,
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&infoCount);
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return ((hostInfo.cpu_type == CPU_TYPE_POWERPC) &&
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(hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_970));
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}
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#endif
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PPCSubtarget::PPCSubtarget(const Module &M)
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: StackAlignment(16), IsGigaProcessor(false), IsAIX(false), IsDarwin(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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IsDarwin = TT.find("darwin") != std::string::npos;
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#if defined(__APPLE__)
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IsGigaProcessor = IsGP();
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#endif
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} else if (TT.empty()) {
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#if defined(_POWER)
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IsAIX = true;
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#elif defined(__APPLE__)
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IsDarwin = true;
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IsGigaProcessor = IsGP();
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#endif
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}
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// If GP opts are forced on by the commandline, do so now.
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if (EnableGPOPT) IsGigaProcessor = true;
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}
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