#include "llvm/Support/IRReader.h"
#include "llvm/CodeGen/LinkAllAsmWriterComponents.h"
#include "llvm/CodeGen/LinkAllCodegenComponents.h"
-#include "llvm/Config/config.h"
#include "llvm/MC/SubtargetFeature.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
clEnumValN(TargetMachine::CGFT_AssemblyFile, "asm",
"Emit an assembly ('.s') file"),
clEnumValN(TargetMachine::CGFT_ObjectFile, "obj",
- "Emit a native object ('.o') file [experimental]"),
+ "Emit a native object ('.o') file"),
clEnumValN(TargetMachine::CGFT_Null, "null",
"Emit nothing, for performance testing"),
clEnumValEnd));
cl::desc("Enable less precise MAD instructions to be generated"),
cl::init(false));
-static cl::opt<bool>
-PrintCode("print-machineinstrs",
- cl::desc("Print generated machine code"),
- cl::init(false));
-
static cl::opt<bool>
DisableFPElim("disable-fp-elim",
cl::desc("Disable frame pointer elimination optimization"),
cl::init(false));
static cl::opt<bool>
-EnableJITExceptionHandling("jit-enable-eh",
- cl::desc("Emit exception handling information"),
- cl::init(false));
-
-// In debug builds, make this default to true.
-#ifdef NDEBUG
-#define EMIT_DEBUG false
-#else
-#define EMIT_DEBUG true
-#endif
-static cl::opt<bool>
-EmitJitDebugInfo("jit-emit-debug",
- cl::desc("Emit debug information to debugger"),
- cl::init(EMIT_DEBUG));
-#undef EMIT_DEBUG
-
-static cl::opt<bool>
-EmitJitDebugInfoToDisk("jit-emit-debug-to-disk",
- cl::Hidden,
- cl::desc("Emit debug info objfiles to disk"),
+EnableGuaranteedTailCallOpt("tailcallopt",
+ cl::desc("Turn fastcc calls into tail calls by (potentially) changing ABI."),
cl::init(false));
static cl::opt<bool>
-EnableGuaranteedTailCallOpt("tailcallopt",
- cl::desc("Turn fastcc calls into tail calls by (potentially) changing ABI."),
+DisableTailCalls("disable-tail-calls",
+ cl::desc("Never emit tail calls"),
cl::init(false));
static cl::opt<unsigned>
cl::init(true));
static cl::opt<bool>
-DisableSwitchTables(cl::Hidden, "disable-jump-tables",
+DisableSwitchTables(cl::Hidden, "disable-jump-tables",
cl::desc("Do not generate jump tables."),
cl::init(false));
-static cl::opt<bool>
-EnableStrongPHIElim(cl::Hidden, "strong-phi-elim",
- cl::desc("Use strong PHI elimination."),
- cl::init(false));
-
static cl::opt<std::string>
TrapFuncName("trap-func", cl::Hidden,
cl::desc("Emit a call to trap function rather than a trap instruction"),
cl::init(""));
+static cl::opt<bool>
+EnablePIE("enable-pie",
+ cl::desc("Assume the creation of a position independent executable."),
+ cl::init(false));
+
static cl::opt<bool>
SegmentedStacks("segmented-stacks",
cl::desc("Use segmented stacks if possible."),
cl::init(false));
+static cl::opt<bool>
+UseInitArray("use-init-array",
+ cl::desc("Use .init_array instead of .ctors."),
+ cl::init(false));
// GetFileNameRoot - Helper function to get the basename of a filename.
static inline std::string
OutputFilename = GetFileNameRoot(InputFilename);
switch (FileType) {
- default: assert(0 && "Unknown file type");
case TargetMachine::CGFT_AssemblyFile:
if (TargetName[0] == 'c') {
if (TargetName[1] == 0)
// Decide if we need "binary" output.
bool Binary = false;
switch (FileType) {
- default: assert(0 && "Unknown file type");
case TargetMachine::CGFT_AssemblyFile:
break;
case TargetMachine::CGFT_ObjectFile:
if (!TargetTriple.empty())
mod.setTargetTriple(Triple::normalize(TargetTriple));
+ // Figure out the target triple.
Triple TheTriple(mod.getTargetTriple());
if (TheTriple.getTriple().empty())
TheTriple.setTriple(sys::getDefaultTargetTriple());
- // Allocate target machine. First, check whether the user has explicitly
- // specified an architecture to compile for. If so we have to look it up by
- // name, because it might be a backend that has no mapping to a target triple.
- const Target *TheTarget = 0;
- if (!MArch.empty()) {
- for (TargetRegistry::iterator it = TargetRegistry::begin(),
- ie = TargetRegistry::end(); it != ie; ++it) {
- if (MArch == it->getName()) {
- TheTarget = &*it;
- break;
- }
- }
-
- if (!TheTarget) {
- errs() << argv[0] << ": error: invalid target '" << MArch << "'.\n";
- return 1;
- }
-
- // Adjust the triple to match (if known), otherwise stick with the
- // module/host triple.
- Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch);
- if (Type != Triple::UnknownArch)
- TheTriple.setArch(Type);
- } else {
- std::string Err;
- TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Err);
- if (TheTarget == 0) {
- errs() << argv[0] << ": error auto-selecting target for module '"
- << Err << "'. Please use the -march option to explicitly "
- << "pick a target.\n";
- return 1;
- }
+ // Get the target specific parser.
+ std::string Error;
+ const Target *TheTarget = TargetRegistry::lookupTarget(MArch, TheTriple,
+ Error);
+ if (!TheTarget) {
+ errs() << argv[0] << ": " << Error;
+ return 1;
}
// Package up features to be passed to target/subtarget
TargetOptions Options;
Options.LessPreciseFPMADOption = EnableFPMAD;
- Options.PrintMachineCode = PrintCode;
Options.NoFramePointerElim = DisableFPElim;
Options.NoFramePointerElimNonLeaf = DisableFPElimNonLeaf;
Options.NoExcessFPPrecision = DisableExcessPrecision;
if (FloatABIForCalls != FloatABI::Default)
Options.FloatABIType = FloatABIForCalls;
Options.NoZerosInBSS = DontPlaceZerosInBSS;
- Options.JITExceptionHandling = EnableJITExceptionHandling;
- Options.JITEmitDebugInfo = EmitJitDebugInfo;
- Options.JITEmitDebugInfoToDisk = EmitJitDebugInfoToDisk;
Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
+ Options.DisableTailCalls = DisableTailCalls;
Options.StackAlignmentOverride = OverrideStackAlignment;
Options.RealignStack = EnableRealignStack;
Options.DisableJumpTables = DisableSwitchTables;
Options.TrapFuncName = TrapFuncName;
+ Options.PositionIndependentExecutable = EnablePIE;
Options.EnableSegmentedStacks = SegmentedStacks;
+ Options.UseInitArray = UseInitArray;
std::auto_ptr<TargetMachine>
target(TheTarget->createTargetMachine(TheTriple.getTriple(),
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