diff options
Diffstat (limited to 'llvm/lib/Target/Mips/MipsISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsISelLowering.cpp | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp index fcd0450a067..be98b58fc2f 100644 --- a/llvm/lib/Target/Mips/MipsISelLowering.cpp +++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp @@ -458,9 +458,19 @@ const MipsTargetLowering *MipsTargetLowering::create(const MipsTargetMachine &TM FastISel * MipsTargetLowering::createFastISel(FunctionLoweringInfo &funcInfo, const TargetLibraryInfo *libInfo) const { - if (!funcInfo.MF->getTarget().Options.EnableFastISel) - return TargetLowering::createFastISel(funcInfo, libInfo); - return Mips::createFastISel(funcInfo, libInfo); + const MipsTargetMachine &TM = + static_cast<const MipsTargetMachine &>(funcInfo.MF->getTarget()); + + // We support only the standard encoding [MIPS32,MIPS32R5] ISAs. + bool UseFastISel = TM.Options.EnableFastISel && Subtarget.hasMips32() && + !Subtarget.hasMips32r6() && !Subtarget.inMips16Mode() && + !Subtarget.inMicroMipsMode(); + + // Disable if we don't generate PIC or the ABI isn't O32. + if (!TM.isPositionIndependent() || !TM.getABI().IsO32()) + UseFastISel = false; + + return UseFastISel ? Mips::createFastISel(funcInfo, libInfo) : nullptr; } EVT MipsTargetLowering::getSetCCResultType(const DataLayout &, LLVMContext &, |
