diff options
Diffstat (limited to 'lib/Target/Mips/MipsSubtarget.cpp')
-rw-r--r-- | lib/Target/Mips/MipsSubtarget.cpp | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp index 541e2ca..0a81072 100644 --- a/lib/Target/Mips/MipsSubtarget.cpp +++ b/lib/Target/Mips/MipsSubtarget.cpp @@ -53,6 +53,12 @@ Mips16HardFloat("mips16-hard-float", cl::NotHidden, cl::desc("MIPS: mips16 hard float enable."), cl::init(false)); +static cl::opt<bool> +Mips16ConstantIslands( + "mips16-constant-islands", cl::Hidden, + cl::desc("MIPS: mips16 constant islands enable. experimental feature"), + cl::init(false)); + void MipsSubtarget::anchor() { } MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU, @@ -65,7 +71,7 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU, HasBitCount(false), HasFPIdx(false), InMips16Mode(false), InMips16HardFloat(Mips16HardFloat), InMicroMipsMode(false), HasDSP(false), HasDSPR2(false), - AllowMixed16_32(Mixed16_32 | Mips_Os16), Os16(Mips_Os16), + AllowMixed16_32(Mixed16_32 | Mips_Os16), Os16(Mips_Os16), HasMSA(false), RM(_RM), OverrideMode(NoOverride), TM(_TM) { std::string CPUName = CPU; @@ -89,12 +95,20 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU, (hasMips64() && (isABI_N32() || isABI_N64()))) && "Invalid Arch & ABI pair."); + if (hasMSA() && !isFP64bit()) + report_fatal_error("MSA requires a 64-bit FPU register file (FR=1 mode). " + "See -mattr=+fp64.", + false); + // Is the target system Linux ? if (TT.find("linux") == std::string::npos) IsLinux = false; // Set UseSmallSection. UseSmallSection = !IsLinux && (RM == Reloc::Static); + // set some subtarget specific features + if (inMips16Mode()) + HasBitCount=false; } bool @@ -152,3 +166,11 @@ void MipsSubtarget::resetSubtarget(MachineFunction *MF) { } } +bool MipsSubtarget::mipsSEUsesSoftFloat() const { + return TM->Options.UseSoftFloat && !InMips16HardFloat; +} + +bool MipsSubtarget::useConstantIslands() { + DEBUG(dbgs() << "use constant islands " << Mips16ConstantIslands << "\n"); + return Mips16ConstantIslands; +} |