#include "llvm/PassManager.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/Passes.h"
-#include "llvm/Support/CommandLine.h"
+#include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCStreamer.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegistry.h"
using namespace llvm;
-static cl::opt<bool>
-SSEDomainFix("sse-domain-fix",
- cl::desc("Enable fixing of SSE execution domain"),
- cl::init(false), cl::Hidden);
-
static MCAsmInfo *createMCAsmInfo(const Target &T, StringRef TT) {
Triple TheTriple(TT);
- switch (TheTriple.getOS()) {
- case Triple::Darwin:
- return new X86MCAsmInfoDarwin(TheTriple);
- case Triple::MinGW32:
- case Triple::MinGW64:
- case Triple::Cygwin:
- case Triple::Win32:
- return new X86MCAsmInfoCOFF(TheTriple);
- default:
- return new X86ELFMCAsmInfo(TheTriple);
+
+ if (TheTriple.isOSDarwin() || TheTriple.getEnvironment() == Triple::MachO) {
+ if (TheTriple.getArch() == Triple::x86_64)
+ return new X86_64MCAsmInfoDarwin(TheTriple);
+ else
+ return new X86MCAsmInfoDarwin(TheTriple);
}
+
+ if (TheTriple.isOSWindows())
+ return new X86MCAsmInfoCOFF(TheTriple);
+
+ return new X86ELFMCAsmInfo(TheTriple);
+}
+
+static MCStreamer *createMCStreamer(const Target &T, const std::string &TT,
+ MCContext &Ctx, TargetAsmBackend &TAB,
+ raw_ostream &_OS,
+ MCCodeEmitter *_Emitter,
+ bool RelaxAll,
+ bool NoExecStack) {
+ Triple TheTriple(TT);
+
+ if (TheTriple.isOSDarwin() || TheTriple.getEnvironment() == Triple::MachO)
+ return createMachOStreamer(Ctx, TAB, _OS, _Emitter, RelaxAll);
+
+ if (TheTriple.isOSWindows())
+ return createWinCOFFStreamer(Ctx, TAB, *_Emitter, _OS, RelaxAll);
+
+ return createELFStreamer(Ctx, TAB, _OS, _Emitter, RelaxAll, NoExecStack);
}
-extern "C" void LLVMInitializeX86Target() {
+extern "C" void LLVMInitializeX86Target() {
// Register the target.
RegisterTargetMachine<X86_32TargetMachine> X(TheX86_32Target);
RegisterTargetMachine<X86_64TargetMachine> Y(TheX86_64Target);
createX86_32AsmBackend);
TargetRegistry::RegisterAsmBackend(TheX86_64Target,
createX86_64AsmBackend);
+
+ // Register the object streamer.
+ TargetRegistry::RegisterObjectStreamer(TheX86_32Target,
+ createMCStreamer);
+ TargetRegistry::RegisterObjectStreamer(TheX86_64Target,
+ createMCStreamer);
}
X86_32TargetMachine::X86_32TargetMachine(const Target &T, const std::string &TT,
+ const std::string &CPU,
const std::string &FS)
- : X86TargetMachine(T, TT, FS, false) {
+ : X86TargetMachine(T, TT, CPU, FS, false),
+ DataLayout(getSubtargetImpl()->isTargetDarwin() ?
+ "e-p:32:32-f64:32:64-i64:32:64-f80:128:128-f128:128:128-n8:16:32" :
+ (getSubtargetImpl()->isTargetCygMing() ||
+ getSubtargetImpl()->isTargetWindows()) ?
+ "e-p:32:32-f64:64:64-i64:64:64-f80:32:32-f128:128:128-n8:16:32" :
+ "e-p:32:32-f64:32:64-i64:32:64-f80:32:32-f128:128:128-n8:16:32"),
+ InstrInfo(*this),
+ TSInfo(*this),
+ TLInfo(*this),
+ JITInfo(*this) {
}
X86_64TargetMachine::X86_64TargetMachine(const Target &T, const std::string &TT,
+ const std::string &CPU,
const std::string &FS)
- : X86TargetMachine(T, TT, FS, true) {
+ : X86TargetMachine(T, TT, CPU, FS, true),
+ DataLayout("e-p:64:64-s:64-f64:64:64-i64:64:64-f80:128:128-f128:128:128-n8:16:32:64"),
+ InstrInfo(*this),
+ TSInfo(*this),
+ TLInfo(*this),
+ JITInfo(*this) {
}
/// X86TargetMachine ctor - Create an X86 target.
///
-X86TargetMachine::X86TargetMachine(const Target &T, const std::string &TT,
+X86TargetMachine::X86TargetMachine(const Target &T, const std::string &TT,
+ const std::string &CPU,
const std::string &FS, bool is64Bit)
- : LLVMTargetMachine(T, TT),
- Subtarget(TT, FS, is64Bit),
- DataLayout(Subtarget.getDataLayout()),
- FrameInfo(TargetFrameInfo::StackGrowsDown,
- Subtarget.getStackAlignment(),
- (Subtarget.isTargetWin64() ? -40 :
- (Subtarget.is64Bit() ? -8 : -4))),
- InstrInfo(*this), JITInfo(*this), TLInfo(*this), ELFWriterInfo(*this) {
+ : LLVMTargetMachine(T, TT),
+ Subtarget(TT, CPU, FS, is64Bit, StackAlignmentOverride),
+ FrameLowering(*this, Subtarget),
+ ELFWriterInfo(is64Bit, true) {
DefRelocModel = getRelocationModel();
-
+
// If no relocation model was picked, default as appropriate for the target.
if (getRelocationModel() == Reloc::Default) {
- if (!Subtarget.isTargetDarwin())
- setRelocationModel(Reloc::Static);
- else if (Subtarget.is64Bit())
+ // Darwin defaults to PIC in 64 bit mode and dynamic-no-pic in 32 bit mode.
+ // Win64 requires rip-rel addressing, thus we force it to PIC. Otherwise we
+ // use static relocation model by default.
+ if (Subtarget.isTargetDarwin()) {
+ if (Subtarget.is64Bit())
+ setRelocationModel(Reloc::PIC_);
+ else
+ setRelocationModel(Reloc::DynamicNoPIC);
+ } else if (Subtarget.isTargetWin64())
setRelocationModel(Reloc::PIC_);
else
- setRelocationModel(Reloc::DynamicNoPIC);
+ setRelocationModel(Reloc::Static);
}
assert(getRelocationModel() != Reloc::Default &&
Subtarget.isTargetDarwin() &&
is64Bit)
setRelocationModel(Reloc::PIC_);
-
+
// Determine the PICStyle based on the target selected.
if (getRelocationModel() == Reloc::Static) {
// Unless we're in PIC or DynamicNoPIC mode, set the PIC style to None.
Subtarget.setPICStyle(PICStyles::None);
+ } else if (Subtarget.is64Bit()) {
+ // PIC in 64 bit mode is always rip-rel.
+ Subtarget.setPICStyle(PICStyles::RIPRel);
} else if (Subtarget.isTargetCygMing()) {
Subtarget.setPICStyle(PICStyles::None);
} else if (Subtarget.isTargetDarwin()) {
- if (Subtarget.is64Bit())
- Subtarget.setPICStyle(PICStyles::RIPRel);
- else if (getRelocationModel() == Reloc::PIC_)
+ if (getRelocationModel() == Reloc::PIC_)
Subtarget.setPICStyle(PICStyles::StubPIC);
else {
assert(getRelocationModel() == Reloc::DynamicNoPIC);
Subtarget.setPICStyle(PICStyles::StubDynamicNoPIC);
}
} else if (Subtarget.isTargetELF()) {
- if (Subtarget.is64Bit())
- Subtarget.setPICStyle(PICStyles::RIPRel);
- else
- Subtarget.setPICStyle(PICStyles::GOT);
+ Subtarget.setPICStyle(PICStyles::GOT);
}
-
+
// Finally, if we have "none" as our PIC style, force to static mode.
if (Subtarget.getPICStyle() == PICStyles::None)
setRelocationModel(Reloc::Static);
+
+ // default to hard float ABI
+ if (FloatABIType == FloatABI::Default)
+ FloatABIType = FloatABI::Hard;
}
//===----------------------------------------------------------------------===//
// Install an instruction selector.
PM.add(createX86ISelDag(*this, OptLevel));
- // Install a pass to insert x87 FP_REG_KILL instructions, as needed.
- PM.add(createX87FPRegKillInserterPass());
+ // For 32-bit, prepend instructions to set the "global base reg" for PIC.
+ if (!Subtarget.is64Bit())
+ PM.add(createGlobalBaseRegPass());
return false;
}
bool X86TargetMachine::addPreRegAlloc(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
+ PM.add(createX86MaxStackAlignmentHeuristicPass());
return false; // -print-machineinstr shouldn't print after this.
}
bool X86TargetMachine::addPreEmitPass(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
- if (SSEDomainFix && OptLevel != CodeGenOpt::None && Subtarget.hasSSE2()) {
+ if (OptLevel != CodeGenOpt::None && Subtarget.hasSSE2()) {
PM.add(createSSEDomainFixPass());
return true;
}
JITCodeEmitter &JCE) {
// FIXME: Move this to TargetJITInfo!
// On Darwin, do not override 64-bit setting made in X86TargetMachine().
- if (DefRelocModel == Reloc::Default &&
+ if (DefRelocModel == Reloc::Default &&
(!Subtarget.isTargetDarwin() || !Subtarget.is64Bit())) {
setRelocationModel(Reloc::Static);
Subtarget.setPICStyle(PICStyles::None);
}
-
+
PM.add(createX86JITCodeEmitterPass(*this, JCE));
projects / oota-llvm.git / blobdiff