diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsISelLowering.cpp | 22 | ||||
| -rw-r--r-- | llvm/lib/Target/Mips/MipsISelLowering.h | 2 |
2 files changed, 24 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp index dfd94ac7449..99fd739c3ed 100644 --- a/llvm/lib/Target/Mips/MipsISelLowering.cpp +++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp @@ -3839,3 +3839,25 @@ MipsTargetLowering::emitPseudoSELECT(MachineInstr *MI, MachineBasicBlock *BB, return BB; } + +// FIXME? Maybe this could be a TableGen attribute on some registers and +// this table could be generated automatically from RegInfo. +unsigned MipsTargetLowering::getRegisterByName(const char* RegName, + EVT VT) const { + // Named registers is expected to be fairly rare. For now, just support $28 + // since the linux kernel uses it. + if (Subtarget.isGP64bit()) { + unsigned Reg = StringSwitch<unsigned>(RegName) + .Case("$28", Mips::GP_64) + .Default(0); + if (Reg) + return Reg; + } else { + unsigned Reg = StringSwitch<unsigned>(RegName) + .Case("$28", Mips::GP) + .Default(0); + if (Reg) + return Reg; + } + report_fatal_error("Invalid register name global variable"); +} diff --git a/llvm/lib/Target/Mips/MipsISelLowering.h b/llvm/lib/Target/Mips/MipsISelLowering.h index 3254f1f1177..71f140b7a65 100644 --- a/llvm/lib/Target/Mips/MipsISelLowering.h +++ b/llvm/lib/Target/Mips/MipsISelLowering.h @@ -262,6 +262,8 @@ namespace llvm { void HandleByVal(CCState *, unsigned &, unsigned) const override; + unsigned getRegisterByName(const char* RegName, EVT VT) const override; + protected: SDValue getGlobalReg(SelectionDAG &DAG, EVT Ty) const; |
