diff --git a/include/llvm/Target/TargetOptions.h b/include/llvm/Target/TargetOptions.h index 97ceffdaecb..fc80a06deba 100644 --- a/include/llvm/Target/TargetOptions.h +++ b/include/llvm/Target/TargetOptions.h @@ -157,6 +157,10 @@ namespace llvm { /// wth earlier copy coalescing. extern bool StrongPHIElim; + /// HasDivModLibcall - This flag indicates whether the target compiler + /// runtime library has integer divmod libcalls. + extern bool HasDivModLibcall; + } // End llvm namespace #endif diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 6ff57522f0e..d030f68528e 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -72,11 +72,6 @@ ARMInterworking("arm-interworking", cl::Hidden, cl::desc("Enable / disable ARM interworking (for debugging only)"), cl::init(true)); -static cl::opt -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) { @@ -398,7 +393,7 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM) setLibcallCallingConv(RTLIB::UDIV_I32, CallingConv::ARM_AAPCS); } - if (UseDivMod) { + if (HasDivModLibcall) { setLibcallName(RTLIB::SDIVREM_I32, "__divmodsi4"); setLibcallName(RTLIB::UDIVREM_I32, "__udivmodsi4"); } diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp index 681842ea6b6..8c7330a77c7 100644 --- a/lib/Target/TargetMachine.cpp +++ b/lib/Target/TargetMachine.cpp @@ -48,6 +48,7 @@ namespace llvm { bool RealignStack; bool DisableJumpTables; bool StrongPHIElim; + bool HasDivModLibcall; bool AsmVerbosityDefault(false); } @@ -205,6 +206,11 @@ EnableStrongPHIElim(cl::Hidden, "strong-phi-elim", cl::desc("Use strong PHI elimination."), cl::location(StrongPHIElim), cl::init(false)); +static cl::opt +UseDivMod("use-divmod-libcall", + cl::desc("Use __{u}divmod libcalls for div / rem pairs"), + cl::location(HasDivModLibcall), + cl::init(false)); static cl::opt DataSections("fdata-sections", cl::desc("Emit data into separate sections"), diff --git a/test/CodeGen/ARM/divmod.ll b/test/CodeGen/ARM/divmod.ll index 9b5129771f8..04b8fbf0f02 100644 --- a/test/CodeGen/ARM/divmod.ll +++ b/test/CodeGen/ARM/divmod.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -mtriple=arm-apple-darwin -arm-divmod-libcall | FileCheck %s +; RUN: llc < %s -mtriple=arm-apple-darwin -use-divmod-libcall | FileCheck %s define void @foo(i32 %x, i32 %y, i32* nocapture %P) nounwind ssp { entry: