#define X86SUBTARGET_H
#include "llvm/ADT/Triple.h"
-#include "llvm/CallingConv.h"
+#include "llvm/IR/CallingConv.h"
#include "llvm/Target/TargetSubtargetInfo.h"
#include <string>
};
}
-class X86Subtarget : public X86GenSubtargetInfo {
+class X86Subtarget final : public X86GenSubtargetInfo {
protected:
enum X86SSEEnum {
- NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42, AVX, AVX2
+ NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42, AVX, AVX2, AVX512F
};
enum X863DNowEnum {
};
enum X86ProcFamilyEnum {
- Others, IntelAtom
+ Others, IntelAtom, IntelSLM
};
/// X86ProcFamily - X86 processor family: Intel Atom, and others
/// HasXOP - Target has XOP instructions
bool HasXOP;
+ /// HasTBM - Target has TBM instructions.
+ bool HasTBM;
+
/// HasMOVBE - True if the processor has the MOVBE instruction.
bool HasMOVBE;
/// HasRTM - Processor has RTM instructions.
bool HasRTM;
+ /// HasHLE - Processor has HLE.
+ bool HasHLE;
+
+ /// HasADX - Processor has ADX instructions.
+ bool HasADX;
+
+ /// HasSHA - Processor has SHA instructions.
+ bool HasSHA;
+
+ /// HasPRFCHW - Processor has PRFCHW instructions.
+ bool HasPRFCHW;
+
+ /// HasRDSEED - Processor has RDSEED instructions.
+ bool HasRDSEED;
+
/// IsBTMemSlow - True if BT (bit test) of memory instructions are slow.
bool IsBTMemSlow;
+ /// IsSHLDSlow - True if SHLD instructions are slow.
+ bool IsSHLDSlow;
+
/// IsUAMemFast - True if unaligned memory access is fast.
bool IsUAMemFast;
/// PostRAScheduler - True if using post-register-allocation scheduler.
bool PostRAScheduler;
+ /// PadShortFunctions - True if the short functions should be padded to prevent
+ /// a stall when returning too early.
+ bool PadShortFunctions;
+
+ /// CallRegIndirect - True if the Calls with memory reference should be converted
+ /// to a register-based indirect call.
+ bool CallRegIndirect;
+ /// LEAUsesAG - True if the LEA instruction inputs have to be ready at
+ /// address generation (AG) time.
+ bool LEAUsesAG;
+
+ /// Processor has AVX-512 PreFetch Instructions
+ bool HasPFI;
+
+ /// Processor has AVX-512 Exponential and Reciprocal Instructions
+ bool HasERI;
+
+ /// Processor has AVX-512 Conflict Detection Instructions
+ bool HasCDI;
+
/// stackAlignment - The minimum alignment known to hold of the stack frame on
/// entry to the function and which must be maintained by every function.
unsigned stackAlignment;
InstrItineraryData InstrItins;
private:
- /// In64BitMode - True if compiling for 64-bit, false for 32-bit.
+ /// StackAlignOverride - Override the stack alignment.
+ unsigned StackAlignOverride;
+
+ /// In64BitMode - True if compiling for 64-bit, false for 16-bit or 32-bit.
bool In64BitMode;
-public:
+ /// In32BitMode - True if compiling for 32-bit, false for 16-bit or 64-bit.
+ bool In32BitMode;
+ /// In16BitMode - True if compiling for 16-bit, false for 32-bit or 64-bit.
+ bool In16BitMode;
+
+public:
/// This constructor initializes the data members to match that
/// of the specified triple.
///
X86Subtarget(const std::string &TT, const std::string &CPU,
const std::string &FS,
- unsigned StackAlignOverride, bool is64Bit);
+ unsigned StackAlignOverride);
/// getStackAlignment - Returns the minimum alignment known to hold of the
/// stack frame on entry to the function and which must be maintained by every
/// subtarget options. Definition of function is auto generated by tblgen.
void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
- /// AutoDetectSubtargetFeatures - Auto-detect CPU features using CPUID
- /// instruction.
- void AutoDetectSubtargetFeatures();
+ /// \brief Reset the features for the X86 target.
+ void resetSubtargetFeatures(const MachineFunction *MF) override;
+private:
+ void initializeEnvironment();
+ void resetSubtargetFeatures(StringRef CPU, StringRef FS);
+public:
+ /// Is this x86_64? (disregarding specific ABI / programming model)
+ bool is64Bit() const {
+ return In64BitMode;
+ }
+
+ bool is32Bit() const {
+ return In32BitMode;
+ }
- bool is64Bit() const { return In64BitMode; }
+ bool is16Bit() const {
+ return In16BitMode;
+ }
+
+ /// Is this x86_64 with the ILP32 programming model (x32 ABI)?
+ bool isTarget64BitILP32() const {
+ return In64BitMode && (TargetTriple.getEnvironment() == Triple::GNUX32 ||
+ TargetTriple.getOS() == Triple::NaCl);
+ }
+
+ /// Is this x86_64 with the LP64 programming model (standard AMD64, no x32)?
+ bool isTarget64BitLP64() const {
+ return In64BitMode && (TargetTriple.getEnvironment() != Triple::GNUX32);
+ }
PICStyles::Style getPICStyle() const { return PICStyle; }
void setPICStyle(PICStyles::Style Style) { PICStyle = Style; }
bool hasSSE42() const { return X86SSELevel >= SSE42; }
bool hasAVX() const { return X86SSELevel >= AVX; }
bool hasAVX2() const { return X86SSELevel >= AVX2; }
+ bool hasAVX512() const { return X86SSELevel >= AVX512F; }
bool hasFp256() const { return hasAVX(); }
bool hasInt256() const { return hasAVX2(); }
bool hasSSE4A() const { return HasSSE4A; }
// FIXME: Favor FMA when both are enabled. Is this the right thing to do?
bool hasFMA4() const { return HasFMA4 && !HasFMA; }
bool hasXOP() const { return HasXOP; }
+ bool hasTBM() const { return HasTBM; }
bool hasMOVBE() const { return HasMOVBE; }
bool hasRDRAND() const { return HasRDRAND; }
bool hasF16C() const { return HasF16C; }
bool hasBMI() const { return HasBMI; }
bool hasBMI2() const { return HasBMI2; }
bool hasRTM() const { return HasRTM; }
+ bool hasHLE() const { return HasHLE; }
+ bool hasADX() const { return HasADX; }
+ bool hasSHA() const { return HasSHA; }
+ bool hasPRFCHW() const { return HasPRFCHW; }
+ bool hasRDSEED() const { return HasRDSEED; }
bool isBTMemSlow() const { return IsBTMemSlow; }
+ bool isSHLDSlow() const { return IsSHLDSlow; }
bool isUnalignedMemAccessFast() const { return IsUAMemFast; }
bool hasVectorUAMem() const { return HasVectorUAMem; }
bool hasCmpxchg16b() const { return HasCmpxchg16b; }
bool useLeaForSP() const { return UseLeaForSP; }
bool hasSlowDivide() const { return HasSlowDivide; }
+ bool padShortFunctions() const { return PadShortFunctions; }
+ bool callRegIndirect() const { return CallRegIndirect; }
+ bool LEAusesAG() const { return LEAUsesAG; }
+ bool hasCDI() const { return HasCDI; }
+ bool hasPFI() const { return HasPFI; }
+ bool hasERI() const { return HasERI; }
bool isAtom() const { return X86ProcFamily == IntelAtom; }
bool isTargetSolaris() const {
return TargetTriple.getOS() == Triple::Solaris;
}
- bool isTargetELF() const {
- return (TargetTriple.getEnvironment() == Triple::ELF ||
- TargetTriple.isOSBinFormatELF());
- }
- bool isTargetLinux() const { return TargetTriple.getOS() == Triple::Linux; }
- bool isTargetNaCl() const {
- return TargetTriple.getOS() == Triple::NativeClient;
- }
+
+ bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
+ bool isTargetCOFF() const { return TargetTriple.isOSBinFormatCOFF(); }
+ bool isTargetMacho() const { return TargetTriple.isOSBinFormatMachO(); }
+
+ bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
+ bool isTargetNaCl() const { return TargetTriple.isOSNaCl(); }
bool isTargetNaCl32() const { return isTargetNaCl() && !is64Bit(); }
bool isTargetNaCl64() const { return isTargetNaCl() && is64Bit(); }
- bool isTargetWindows() const { return TargetTriple.getOS() == Triple::Win32; }
- bool isTargetMingw() const { return TargetTriple.getOS() == Triple::MinGW32; }
- bool isTargetCygwin() const { return TargetTriple.getOS() == Triple::Cygwin; }
- bool isTargetCygMing() const { return TargetTriple.isOSCygMing(); }
- bool isTargetCOFF() const {
- return (TargetTriple.getEnvironment() != Triple::ELF &&
- TargetTriple.isOSBinFormatCOFF());
+
+ bool isTargetWindowsMSVC() const {
+ return TargetTriple.isWindowsMSVCEnvironment();
+ }
+
+ bool isTargetKnownWindowsMSVC() const {
+ return TargetTriple.isKnownWindowsMSVCEnvironment();
+ }
+
+ bool isTargetWindowsCygwin() const {
+ return TargetTriple.isWindowsCygwinEnvironment();
}
- bool isTargetEnvMacho() const { return TargetTriple.isEnvironmentMachO(); }
+
+ bool isTargetWindowsGNU() const {
+ return TargetTriple.isWindowsGNUEnvironment();
+ }
+
+ bool isTargetCygMing() const { return TargetTriple.isOSCygMing(); }
+
+ bool isOSWindows() const { return TargetTriple.isOSWindows(); }
bool isTargetWin64() const {
- // FIXME: x86_64-cygwin has not been released yet.
return In64BitMode && TargetTriple.isOSWindows();
}
bool isTargetWin32() const {
- // FIXME: Cygwin is included for isTargetWin64 -- should it be included
- // here too?
- return !In64BitMode && (isTargetMingw() || isTargetWindows());
+ return !In64BitMode && (isTargetCygMing() || isTargetKnownWindowsMSVC());
}
bool isPICStyleSet() const { return PICStyle != PICStyles::None; }
}
bool isPICStyleStubAny() const {
return PICStyle == PICStyles::StubDynamicNoPIC ||
- PICStyle == PICStyles::StubPIC; }
+ PICStyle == PICStyles::StubPIC;
+ }
+
+ bool isCallingConvWin64(CallingConv::ID CC) const {
+ return (isTargetWin64() && CC != CallingConv::X86_64_SysV) ||
+ CC == CallingConv::X86_64_Win64;
+ }
/// ClassifyGlobalReference - Classify a global variable reference for the
/// current subtarget according to how we should reference it in a non-pcrel
/// returns null.
const char *getBZeroEntry() const;
+ /// This function returns true if the target has sincos() routine in its
+ /// compiler runtime or math libraries.
+ bool hasSinCos() const;
+
+ /// Enable the MachineScheduler pass for all X86 subtargets.
+ bool enableMachineScheduler() const override { return true; }
+
/// enablePostRAScheduler - run for Atom optimization.
bool enablePostRAScheduler(CodeGenOpt::Level OptLevel,
TargetSubtargetInfo::AntiDepBreakMode& Mode,
- RegClassVector& CriticalPathRCs) const;
+ RegClassVector& CriticalPathRCs) const override;
bool postRAScheduler() const { return PostRAScheduler; }
projects / oota-llvm.git / blobdiff