diff options
Diffstat (limited to 'lib/Target/ARM/ARMISelLowering.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 5838181..5502ca4 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -72,6 +72,11 @@ ARMInterworking("arm-interworking", cl::Hidden, cl::desc("Enable / disable ARM interworking (for debugging only)"), cl::init(true)); +static cl::opt<bool> +UseDivMod("arm-divmod-libcall", cl::Hidden, + cl::desc("Use __{u}divmod libcalls for div / rem pairs"), + cl::init(false)); + void ARMTargetLowering::addTypeForNEON(EVT VT, EVT PromotedLdStVT, EVT PromotedBitwiseVT) { if (VT != PromotedLdStVT) { @@ -393,6 +398,11 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM) setLibcallCallingConv(RTLIB::UDIV_I32, CallingConv::ARM_AAPCS); } + if (UseDivMod) { + setLibcallName(RTLIB::SDIVREM_I32, "__divmodsi4"); + setLibcallName(RTLIB::UDIVREM_I32, "__udivmodsi4"); + } + if (Subtarget->isThumb1Only()) addRegisterClass(MVT::i32, ARM::tGPRRegisterClass); else |