diff options
Diffstat (limited to 'contrib/llvm/lib/Target/ARM/ARMSubtarget.h')
| -rw-r--r-- | contrib/llvm/lib/Target/ARM/ARMSubtarget.h | 79 |
1 files changed, 62 insertions, 17 deletions
diff --git a/contrib/llvm/lib/Target/ARM/ARMSubtarget.h b/contrib/llvm/lib/Target/ARM/ARMSubtarget.h index 038eb76..5276901 100644 --- a/contrib/llvm/lib/Target/ARM/ARMSubtarget.h +++ b/contrib/llvm/lib/Target/ARM/ARMSubtarget.h @@ -31,26 +31,36 @@ class TargetOptions; class ARMSubtarget : public ARMGenSubtargetInfo { protected: enum ARMProcFamilyEnum { - Others, CortexA5, CortexA8, CortexA9, CortexA15, CortexR5, Swift + Others, CortexA5, CortexA8, CortexA9, CortexA15, CortexR5, Swift, CortexA53, CortexA57 + }; + enum ARMProcClassEnum { + None, AClass, RClass, MClass }; /// ARMProcFamily - ARM processor family: Cortex-A8, Cortex-A9, and others. ARMProcFamilyEnum ARMProcFamily; - /// HasV4TOps, HasV5TOps, HasV5TEOps, HasV6Ops, HasV6T2Ops, HasV7Ops - + /// ARMProcClass - ARM processor class: None, AClass, RClass or MClass. + ARMProcClassEnum ARMProcClass; + + /// HasV4TOps, HasV5TOps, HasV5TEOps, + /// HasV6Ops, HasV6MOps, HasV6T2Ops, HasV7Ops, HasV8Ops - /// Specify whether target support specific ARM ISA variants. bool HasV4TOps; bool HasV5TOps; bool HasV5TEOps; bool HasV6Ops; + bool HasV6MOps; bool HasV6T2Ops; bool HasV7Ops; + bool HasV8Ops; - /// HasVFPv2, HasVFPv3, HasVFPv4, HasNEON - Specify what + /// HasVFPv2, HasVFPv3, HasVFPv4, HasFPARMv8, HasNEON - Specify what /// floating point ISAs are supported. bool HasVFPv2; bool HasVFPv3; bool HasVFPv4; + bool HasFPARMv8; bool HasNEON; /// UseNEONForSinglePrecisionFP - if the NEONFP attribute has been @@ -79,10 +89,6 @@ protected: /// HasThumb2 - True if Thumb2 instructions are supported. bool HasThumb2; - /// IsMClass - True if the subtarget belongs to the 'M' profile of CPUs - - /// v6m, v7m for example. - bool IsMClass; - /// NoARM - True if subtarget does not support ARM mode execution. bool NoARM; @@ -144,18 +150,37 @@ protected: /// extension (ARMv7 only). bool HasMPExtension; + /// HasVirtualization - True if the subtarget supports the Virtualization + /// extension. + bool HasVirtualization; + /// FPOnlySP - If true, the floating point unit only supports single /// precision. bool FPOnlySP; + /// If true, the processor supports the Performance Monitor Extensions. These + /// include a generic cycle-counter as well as more fine-grained (often + /// implementation-specific) events. + bool HasPerfMon; + /// HasTrustZone - if true, processor supports TrustZone security extensions bool HasTrustZone; + /// HasCrypto - if true, processor supports Cryptography extensions + bool HasCrypto; + + /// HasCRC - if true, processor supports CRC instructions + bool HasCRC; + /// AllowsUnalignedMem - If true, the subtarget allows unaligned memory /// accesses for some types. For details, see /// ARMTargetLowering::allowsUnalignedMemoryAccesses(). bool AllowsUnalignedMem; + /// RestrictIT - If true, the subtarget disallows generation of deprecated IT + /// blocks to conform to ARMv8 rule. + bool RestrictIT; + /// Thumb2DSP - If true, the subtarget supports the v7 DSP (saturating arith /// and such) instructions in Thumb2 code. bool Thumb2DSP; @@ -187,10 +212,6 @@ protected: public: enum { - isELF, isDarwin - } TargetType; - - enum { ARM_ABI_APCS, ARM_ABI_AAPCS // ARM EABI } TargetABI; @@ -224,8 +245,10 @@ public: bool hasV5TOps() const { return HasV5TOps; } bool hasV5TEOps() const { return HasV5TEOps; } bool hasV6Ops() const { return HasV6Ops; } + bool hasV6MOps() const { return HasV6MOps; } bool hasV6T2Ops() const { return HasV6T2Ops; } bool hasV7Ops() const { return HasV7Ops; } + bool hasV8Ops() const { return HasV8Ops; } bool isCortexA5() const { return ARMProcFamily == CortexA5; } bool isCortexA8() const { return ARMProcFamily == CortexA8; } @@ -241,7 +264,11 @@ public: bool hasVFP2() const { return HasVFPv2; } bool hasVFP3() const { return HasVFPv3; } bool hasVFP4() const { return HasVFPv4; } + bool hasFPARMv8() const { return HasFPARMv8; } bool hasNEON() const { return HasNEON; } + bool hasCrypto() const { return HasCrypto; } + bool hasCRC() const { return HasCRC; } + bool hasVirtualization() const { return HasVirtualization; } bool useNEONForSinglePrecisionFP() const { return hasNEON() && UseNEONForSinglePrecisionFP; } @@ -249,11 +276,15 @@ public: bool hasDivideInARMMode() const { return HasHardwareDivideInARM; } bool hasT2ExtractPack() const { return HasT2ExtractPack; } bool hasDataBarrier() const { return HasDataBarrier; } + bool hasAnyDataBarrier() const { + return HasDataBarrier || (hasV6Ops() && !isThumb()); + } bool useMulOps() const { return UseMulOps; } bool useFPVMLx() const { return !SlowFPVMLx; } bool hasVMLxForwarding() const { return HasVMLxForwarding; } bool isFPBrccSlow() const { return SlowFPBrcc; } bool isFPOnlySP() const { return FPOnlySP; } + bool hasPerfMon() const { return HasPerfMon; } bool hasTrustZone() const { return HasTrustZone; } bool prefers32BitThumb() const { return Pref32BitThumb; } bool avoidCPSRPartialUpdate() const { return AvoidCPSRPartialUpdate; } @@ -268,12 +299,19 @@ public: const Triple &getTargetTriple() const { return TargetTriple; } - bool isTargetIOS() const { return TargetTriple.getOS() == Triple::IOS; } + bool isTargetIOS() const { return TargetTriple.isiOS(); } bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); } - bool isTargetNaCl() const { - return TargetTriple.getOS() == Triple::NaCl; - } + bool isTargetNaCl() const { return TargetTriple.isOSNaCl(); } + bool isTargetLinux() const { return TargetTriple.isOSLinux(); } bool isTargetELF() const { return !isTargetDarwin(); } + // ARM EABI is the bare-metal EABI described in ARM ABI documents and + // can be accessed via -target arm-none-eabi. This is NOT GNUEABI. + // FIXME: Add a flag for bare-metal for that target and set Triple::EABI + // even for GNUEABI, so we can make a distinction here and still conform to + // the EABI on GNU (and Android) mode. This requires change in Clang, too. + bool isTargetAEABI() const { + return TargetTriple.getEnvironment() == Triple::EABI; + } bool isAPCS_ABI() const { return TargetABI == ARM_ABI_APCS; } bool isAAPCS_ABI() const { return TargetABI == ARM_ABI_AAPCS; } @@ -282,8 +320,9 @@ public: bool isThumb1Only() const { return InThumbMode && !HasThumb2; } bool isThumb2() const { return InThumbMode && HasThumb2; } bool hasThumb2() const { return HasThumb2; } - bool isMClass() const { return IsMClass; } - bool isARClass() const { return !IsMClass; } + bool isMClass() const { return ARMProcClass == MClass; } + bool isRClass() const { return ARMProcClass == RClass; } + bool isAClass() const { return ARMProcClass == AClass; } bool isR9Reserved() const { return IsR9Reserved; } @@ -292,9 +331,15 @@ public: bool allowsUnalignedMem() const { return AllowsUnalignedMem; } + bool restrictIT() const { return RestrictIT; } + const std::string & getCPUString() const { return CPUString; } unsigned getMispredictionPenalty() const; + + /// This function returns true if the target has sincos() routine in its + /// compiler runtime or math libraries. + bool hasSinCos() const; /// enablePostRAScheduler - True at 'More' optimization. bool enablePostRAScheduler(CodeGenOpt::Level OptLevel, |
