diff options
Diffstat (limited to 'llvm/lib/Target/Mips/MipsSubtarget.cpp')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsSubtarget.cpp | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/llvm/lib/Target/Mips/MipsSubtarget.cpp b/llvm/lib/Target/Mips/MipsSubtarget.cpp index 286d398e56a..ac0ffc75dc2 100644 --- a/llvm/lib/Target/Mips/MipsSubtarget.cpp +++ b/llvm/lib/Target/Mips/MipsSubtarget.cpp @@ -72,6 +72,36 @@ static StringRef selectMipsCPU(Triple TT, StringRef CPU) { void MipsSubtarget::anchor() { } +static std::string computeDataLayout(const MipsSubtarget &ST) { + std::string Ret = ""; + + // There are both little and big endian mips. + if (ST.isLittle()) + Ret += "e"; + else + Ret += "E"; + + Ret += "-m:m"; + + // Pointers are 32 bit on some ABIs. + if (!ST.isABI_N64()) + Ret += "-p:32:32"; + + // 8 and 16 bit integers only need no have natural alignment, but try to + // align them to 32 bits. 64 bit integers have natural alignment. + Ret += "-i8:8:32-i16:16:32-i64:64"; + + // 32 bit registers are always available and the stack is at least 64 bit + // aligned. On N64 64 bit registers are also available and the stack is + // 128 bit aligned. + if (ST.isABI_N64() || ST.isABI_N32()) + Ret += "-n32:64-S128"; + else + Ret += "-n32-S64"; + + return Ret; +} + MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU, const std::string &FS, bool little, Reloc::Model _RM, MipsTargetMachine *_TM) @@ -83,10 +113,10 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU, InMips16Mode(false), InMips16HardFloat(Mips16HardFloat), InMicroMipsMode(false), HasDSP(false), HasDSPR2(false), AllowMixed16_32(Mixed16_32 | Mips_Os16), Os16(Mips_Os16), HasMSA(false), - RM(_RM), OverrideMode(NoOverride), TM(_TM), TargetTriple(TT), JITInfo() { + RM(_RM), OverrideMode(NoOverride), TM(_TM), TargetTriple(TT), + DL(computeDataLayout(initializeSubtargetDependencies(CPU, FS))), + TSInfo(DL), JITInfo() { - initializeSubtargetDependencies(CPU, FS); - if (InMips16Mode && !TM->Options.UseSoftFloat) { // Hard float for mips16 means essentially to compile as soft float // but to use a runtime library for soft float that is written with |
